Sample records for ocean renewable power

  1. 77 FR 5817 - Ocean Renewable Power Company, Tidal Energy Project, Cobscook Bay, ME

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-02-06

    ...Guard [Docket No. USCG-2011-1162] Ocean Renewable Power Company, Tidal Energy Project, Cobscook Bay, ME AGENCY: Coast Guard...best address the proposal put forth by Ocean Renewable Energy Company (ORPC) to install five turbine...

  2. Renewable Energy Powers Renewable Energy Lab, Employees

    E-print Network

    . NREL is also using solar energy for auxiliary purposes such as powering streetlights, water pumps, they may cost more. But as more people try renewable energy, prices will come down. Just look at computers. This has steadily lowered costs to the point where wind energy is within reach of many consumers. The price

  3. Power from Ocean Waves.

    ERIC Educational Resources Information Center

    Newman, J. N.

    1979-01-01

    Discussed is the utilization of surface ocean waves as a potential source of power. Simple and large-scale wave power devices and conversion systems are described. Alternative utilizations, environmental impacts, and future prospects of this alternative energy source are detailed. (BT)

  4. Power electronic devices for renewable power systems

    Microsoft Academic Search

    Rik W. De Doncker; Christian P. Dick; Florian Mura; Thomas Butschen

    2010-01-01

    In the past, overhead lines, cables, transformers and circuit breakers represented the core components of electric power systems. However, in light of a considerable and still increasing share of renewable energy sources in grids, a change in electricity infrastructure can be observed. Over the last decades advances in power semiconductor devices have paved the way for innovative equipment such as

  5. Renewables for sustainable village power

    SciTech Connect

    Flowers, L.

    1997-03-01

    It is estimated that two billion people live without electricity and its services. In addition, there is a sizeable number of rural villages that have limited electrical service, with either part-day operation by diesel gen-sets or partial electrification (local school or community center and several nearby houses). For many villages connected to the grid, power is often sporadically available and of poor quality. The U.S. National Renewable Energy Laboratory (NREL) in Golden, Colorado, has initiated a program to address these potential electricity opportunities in rural villages through the application of renewable energy (RE) technologies. The objective of this program is to develop and implement applications that demonstrate the technical performance, economic competitiveness, operational viability, and environmental benefits of renewable rural electric solutions, compared to the conventional options of line extension and isolated diesel mini-grids. These four attributes foster sustainability; therefore, the program is entitled Renewables for Sustainable Village Power (RSVP). The RSVP program is a multi-technology, multi-application program composed of six activities, including village applications development, computer model development, systems analysis, pilot project development, technical assistance, and Internet-based village power project data base. While the current program emphasizes wind, photovoltaics (PV), and their hybrids with diesel gen-sets, micro-hydro and micro-biomass technologies may be integrated in the future. NREL`s RSVP team is currently involved in rural electricity projects in thirteen countries, with U.S., foreign, and internationally based agencies and institutions. The integration of the technology developments, institutional experiences, and the financial solutions for the implementation of renewables in the main line rural electrification processes in both the developing world and remote regions of the developed world is the goal.

  6. Model Scaling of Hydrokinetic Ocean Renewable Energy Systems

    NASA Astrophysics Data System (ADS)

    von Ellenrieder, Karl; Valentine, William

    2013-11-01

    Numerical simulations are performed to validate a non-dimensional dynamic scaling procedure that can be applied to subsurface and deeply moored systems, such as hydrokinetic ocean renewable energy devices. The prototype systems are moored in water 400 m deep and include: subsurface spherical buoys moored in a shear current and excited by waves; an ocean current turbine excited by waves; and a deeply submerged spherical buoy in a shear current excited by strong current fluctuations. The corresponding model systems, which are scaled based on relative water depths of 10 m and 40 m, are also studied. For each case examined, the response of the model system closely matches the scaled response of the corresponding full-sized prototype system. The results suggest that laboratory-scale testing of complete ocean current renewable energy systems moored in a current is possible. Numerical simulations are performed to validate a non-dimensional dynamic scaling procedure that can be applied to subsurface and deeply moored systems, such as hydrokinetic ocean renewable energy devices. The prototype systems are moored in water 400 m deep and include: subsurface spherical buoys moored in a shear current and excited by waves; an ocean current turbine excited by waves; and a deeply submerged spherical buoy in a shear current excited by strong current fluctuations. The corresponding model systems, which are scaled based on relative water depths of 10 m and 40 m, are also studied. For each case examined, the response of the model system closely matches the scaled response of the corresponding full-sized prototype system. The results suggest that laboratory-scale testing of complete ocean current renewable energy systems moored in a current is possible. This work was supported by the U.S. Southeast National Marine Renewable Energy Center (SNMREC).

  7. DYNAMIC MODELLING OF AUTONOMOUS POWER SYSTEMS INCLUDING RENEWABLE POWER SOURCES.

    E-print Network

    Paris-Sud XI, Université de

    system components are developed. Emphasis is given in the representation of different hydro power plant of renewable energies for electricity production presents a growing interest, especially in autonomous power (thermal, gas, diesel) and renewable (hydro, wind) power units. The objective is to assess the impact

  8. Yankee nuclear power station license renewal assessment

    SciTech Connect

    Hinkle, W.D. (Yankee Atomic Electric Co., Bolten, MA (United States))

    1992-01-01

    Nuclear power plants are initially licensed to operate for 40 years. Recent changes to US Nuclear Regulatory Commission regulations allow licenses to be renewed for up to 20 additional years. The new regulations require a comprehensive plant assessment to ensure continued effective aging management of equipment important to license renewal (ILR). Under the industry's lead plant program, Yankee Atomic Electric Company (YAEC) has assisted with development and demonstration of a generic license renewal assessment process. The generic assessment process developed under the lead plant program is the Nuclear Management and Resources Council methodology.

  9. Wing Wave: Feasible, Alternative, Renewable, Electrical Energy Producing Ocean Floor System

    E-print Network

    Wood, Stephen L.

    Wing Wave: Feasible, Alternative, Renewable, Electrical Energy Producing Ocean Floor System Mark, alternative energy system to convert the circular motion of ocean waves as they propagate through the sea and feasible alternative, renewable, electrical energy producing subsea system. Index Terms--ocean energy, wave

  10. Renewable energy micro-grid power system for isolated communities

    Microsoft Academic Search

    Samuel Tucker; Michael Negnevitsky

    2011-01-01

    Technological advancement in the renewable energy industry is increasing the feasibility of incorporating renewable energy sources into the power systems of isolated communities. Previous studies have demonstrated how renewable energy resources can be incorporated into remote area power systems, in order to reduce operating costs and harmful emissions. The variable nature of renewable resources, however, is still an obstacle that

  11. Optimal Power Allocation for Renewable Energy Source

    E-print Network

    Sinha, Abhinav

    2011-01-01

    Battery powered transmitters face energy constraint, replenishing their energy by a renewable energy source (like solar or wind power) can lead to longer lifetime. We consider here the problem of finding the optimal power allocation under random channel conditions for a wireless transmitter, such that rate of information transfer is maximized. Here a rechargeable battery, which is periodically charged by renewable source, is used to power the transmitter. All of above is formulated as a Markov Decision Process. Structural properties like the monotonicity of the optimal value and policy derived in this paper will be of vital importance in understanding the kind of algorithms and approximations needed in real-life scenarios. The effect of curse of dimensionality which is prevalent in Dynamic programming problems can thus be reduced. We show our results under the most general of assumptions.

  12. Financing renewable energy for Village Power application

    SciTech Connect

    Santibanez-Yeneza, G.

    1997-12-01

    When one talks of rural development, no doubt, the issue of rural energy is not far behind. As a significant component of any development strategy, rural energy is seen as the engine for growth that can bring about economic upliftment in the countryside. Many approaches to rural energy development have been tried. These approaches differ from country to country. But regardless of structure and approach, the goal remain essentially the same: to provide rural communities access to reliable energy services at affordable prices. In recent years, as global concern for the environment has increased, many governments have turned to renewable energy as a more environment friendly alternative to rural electrification. Technological advances in renewable energy application has helped to encourage this use. System reliability has improved, development costs have, to some extent been brought down and varied application approaches have been tried and tested in many areas. Indeed, there is huge potential for the development of renewable energy in the rural areas of most developing countries. At the rural level, renewable energy resources are almost always abundantly available: woodwaste, agricultural residues, animal waste, small-scale hydro, wind, solar and even sometimes geothermal resources. Since smaller scale systems are usually expected in these areas, renewable energy technologies can very well serve as decentralized energy systems for rural application. And not only for rural applications, new expansion planning paradigms have likewise led to the emergence of decentralized energy systems not only as supply options but also as corrective measures for maintaining end of line voltage levels. On the other hand, where renewable energy resource can provide significant blocks of power, they can be relied upon to provide indigenous power to the grids.

  13. California's Renewable Portfolio Standard Northwest Power and Conservation Council

    E-print Network

    target for 33% of energy to be from eligible renewable energy resources Large hydro and rooftop solar of Water and Power (LADWP) Currently meets 18% of energy requirements with renewables has an additional 10 renewables for procurement going forwardfor procurement going forward 4 #12;Renewable Energy Needed to Meet

  14. Renewable power needs smart storage solutions

    SciTech Connect

    Madison, Alison L.

    2010-10-24

    Ancient Greek philosopher Heraclitus claimed that the only thing constant in life is change, a truth we must accept and even celebrate. Another truth we face today is a growing demand for more energy to help us power the kind and pace of change we’ve become accustomed to, while minimizing environmental consequences. Renewable energy--two words that often find themselves woven into environmentally conscious dialogue. And according to Dave Lucero, director of alternative energy storage at EaglePicher Technologies LLC, the Tri-Cities should be thinking about two more: energy storage. Lucero recently addressed the Tri-Cities Research District about tackling the persistent challenge of maximizing renewable energy, which is inherently variable due to changing weather patterns. Capturing that energy and making it available for later use is vital.

  15. BATTERY STORAGE CONTROL FOR STEADYING RENEWABLE POWER GENERATION

    E-print Network

    BATTERY STORAGE CONTROL FOR STEADYING RENEWABLE POWER GENERATION By Shengyuan (Mike) Chen, Emilie-626-7370 URL: http://www.ima.umn.edu #12;Battery Storage Control for Steadying Renewable Power Generation by storing excess power to a battery during excess generation, and then releasing the energy when power

  16. License renewal for commercial nuclear power plants

    SciTech Connect

    Pugh, C.E. (Oak Ridge National Lab., TN (United States))

    1992-01-01

    The regulatory requirements for license renewal fall into two categories - technical and environmental. Plants seeking license renewal most satisfy review requirements both at the time of renewal and during the renewal period. The NRC requirements and some of ORNL's contributions are discussed.

  17. Development of a renewable hybrid power generation system

    Microsoft Academic Search

    Chi Cheung; K. Bengtson; M. Moser; A. Wu; B. Parrilla; C. Mastrangelo

    2009-01-01

    A renewable hybrid power generation system is proposed. The motivation for the system is that grid power is often unreliable, limited or even nonexistent remote\\/rural areas such as forward operating bases and schools and hospitals in developing countries. The challenge of this system is to provide a reliable, cost-effective power management system that is scalable and uses renewable energy sources.

  18. Risk-Limiting Dispatch for Integrating Renewable Power Ram Rajagopal

    E-print Network

    Varaiya, Pravin

    Risk-Limiting Dispatch for Integrating Renewable Power Ram Rajagopal Stanford Univ ramr}@eecs.berkeley.edu September 25, 2011 Abstract Risk-limiting dispatch or RLD is formulated as the optimal solution to a multi and renewable power W are both random processes. The expected cost of a dispatch is the sum of the costs

  19. Market potential of renewable energy powered desalination systems in Greece

    Microsoft Academic Search

    D. Voivontas; K. Yannopoulos; K. Rados; A. Zervos; D. Assimacopoulos

    1999-01-01

    The present work analyzes water management strategies based on advanced desalination schemes powered by renewable energy sources. The framework for developing a decision procedure, which monitors water shortage problems and identifies the availability of renewable energy resources to power desalination plants, is presented. Cost of alternative solutions, taking into account energy cost or profits by energy selling to grid, is

  20. Renewable energy from the sea - organic Rankine Cycle using ocean thermal energy conversion

    Microsoft Academic Search

    S. K. Wang; T. C. Hung

    2010-01-01

    Rankine cycles using refrigerant- and benzene-series fluids as working fluids in converting low-grade energy from renewable energy resources such as solar energy and ocean thermal energy were investigated in this study. The main purpose is to verify the feasibility of utilizing ocean energy (i.e., ocean thermal energy conversion, OTEC) which can also be combined with solar energy in an organic

  1. 78 FR 46255 - Revisions to Environmental Review for Renewal of Nuclear Power Plant Operating Licenses; Correction

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-07-31

    ...Environmental Review for Renewal of Nuclear Power Plant Operating Licenses; Correction...renewing the operating license of a nuclear power plant. Compliance with the provisions...renewing the operating license of a nuclear power plant. This document is...

  2. Renewable Energy Living Lab: Power Your School

    NSDL National Science Digital Library

    Civil and Environmental Engineering Department,

    Students use real-world data to calculate the potential for solar and wind energy generation at their school location. After examining maps and analyzing data from the online Renewable Energy Living Lab, they write recommendations as to the optimal form of renewable energy the school should pursue.

  3. Feasibility of Electric Cars Powered by Renewable Energy

    Microsoft Academic Search

    Andrew William Brunskill

    As concerns grow regarding the ever increasing use of fossil fuels, interest in vehicles powered by alternative energy sources continues to develop. This study investigates the feasibility of charging electric cars in Ontario, Canada with electricity generated from renewable sources. Two main implementation methods are considered and analyzed, including charging electric cars directly from a grid with an enhanced renewable

  4. Modeling the Ocean Tide for Tidal Power Generation Applications

    NASA Astrophysics Data System (ADS)

    Kawase, M.; Gedney, M.

    2014-12-01

    Recent years have seen renewed interest in the ocean tide as a source of energy for electrical power generation. Unlike in the 1960s, when the tidal barrage was the predominant method of power extraction considered and implemented, the current methodology favors operation of a free-stream turbine or an array of them in strong tidal currents. As tidal power generation moves from pilot-scale projects to actual array implementations, numerical modeling of tidal currents is expected to play an increasing role in site selection, resource assessment, array design, and environmental impact assessment. In this presentation, a simple, coupled ocean/estuary model designed for research into fundamental aspects of tidal power generation is described. The model consists of a Pacific Ocean-size rectangular basin and a connected fjord-like embayment with dimensions similar to that of Puget Sound, Washington, one of the potential power generation sites in the United States. The model is forced by an idealized lunar tide-generating potential. The study focuses on the energetics of a tidal system including tidal power extraction at both global and regional scales. The hyperbolic nature of the governing shallow water equations means consequence of tidal power extraction cannot be limited to the local waters, but is global in extent. Modeling power extraction with a regional model with standard boundary conditions introduces uncertainties of 3 ~ 25% in the power extraction estimate depending on the level of extraction. Power extraction in the model has a well-defined maximum (~800 MW in a standard case) that is in agreement with previous theoretical studies. Natural energy dissipation and tidal power extraction strongly interact; for a turbine array of a given capacity, the higher the level of natural dissipation the lower the power the array can extract. Conversely, power extraction leads to a decrease in the level of natural dissipation (Figure) as well as the tidal range and the current speed. In the standard case considered, at the maximum power extraction the tidal range in the estuary is reduced by 37% and the natural dissipation by 78% from the unperturbed state. Thus, environmental consequences of power generation are likely to become the limiting factor on the scale of resource development before the physical maximum is reached.

  5. 77 FR 38742 - Non-Power Reactor License Renewal

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-29

    ...3150-AI96 Non-Power Reactor License Renewal AGENCY: Nuclear Regulatory Commission...and Rulemaking, Office of Nuclear Reactor Regulation, Mail Stop...and Rulemaking, Office of Nuclear Reactor Regulation. [FR...

  6. 77 FR 60039 - Non-Power Reactor License Renewal

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-10-02

    ...3150-AI96 Non-Power Reactor License Renewal AGENCY: Nuclear Regulatory Commission...and Rulemaking, Office of Nuclear Reactor Regulation, U.S. Nuclear...and Rulemaking, Office of Nuclear Reactor Regulation. [FR...

  7. Power inversion design for ocean wave energy harvesting

    NASA Astrophysics Data System (ADS)

    Talebani, Anwar N.

    The needs for energy sources are increasing day by day because of several factors, such as oil depletion, and global climate change due to the higher level of CO2, so the exploration of various renewable energy sources is very promising area of study. The available ocean waves can be utilized as free source of energy as the water covers 70% of the earth surface. This thesis presents the ocean wave energy as a source of renewable energy. By addressing the problem of designing efficient power electronics system to deliver 5 KW from the induction generator to the grid with less possible losses and harmonics as possible and to control current fed to the grid to successfully harvest ocean wave energy. We design an AC-DC full bridge rectifier converter, and a DC-DC boost converter to harvest wave energy from AC to regulated DC. In order to increase the design efficiency, we need to increase the power factor from (0.5-0.6) to 1. This is accomplished by designing the boost converter with power factor correction in continues mode with RC circuit as an input to the boost converter power factor correction. This design results in a phase shift between the input current and voltage of the full bridge rectifier to generate a small reactive power. The reactive power is injected to the induction generator to maintain its functionality by generating a magnetic field in its stator. Next, we design a single-phase pulse width modulator full bridge voltage source DC-AC grid-tied mode inverter to harvest regulated DC wave energy to AC. The designed inverter is modulated by inner current loop, to control current injected to the grid with minimal filter component to maintain power quality at the grid. The simulation results show that our design successfully control the current level fed to the grid. It is noteworthy that the simulated efficiency is higher than the calculated one since we used an ideal switch in the simulated circuit.

  8. Kolmogorov spectrum of renewable wind and solar power fluctuations

    NASA Astrophysics Data System (ADS)

    Rahimi Tabar, M. Reza; Anvari, M.; Lohmann, G.; Heinemann, D.; Wächter, M.; Milan, P.; Lorenz, E.; Peinke, Joachim

    2014-10-01

    With increasing the contribution of renewable energies in power production, the task of reducing dynamic instability in power grids must also be addressed from the generation side, because the power delivered from such sources is spatiotemporally stochastic in nature. Here we characterize the stochastic properties of the wind and solar energy sources by studying their spectrum and multifractal exponents. The computed power spectrum from high frequency time series of solar irradiance and wind power reveals a power-law behaviour with an exponent ˜ 5/3 (Kolmogorov exponent) for the frequency domain 0.001 Hz < f < 0.05 Hz, which means that the power grid is being fed by turbulent-like sources. Our results bring important evidence on the stochastic and turbulent-like behaviour of renewable power production from wind and solar energies, which can cause instability in power grids. Our statistical analysis also provides important information that must be used as a guideline for an optimal design of power grids that operate under intermittent renewable sources of power.

  9. Ocean Renewable Energy Research at U. New Hampshire

    Microsoft Academic Search

    M. Wosnik; K. Baldwin; C. White; M. Carter; D. Gress; R. Swift; I. Tsukrov; G. Kraft; B. Celikkol

    2008-01-01

    The University of New Hampshire (UNH) is strategically positioned to develop and evaluate wave and tidal energy extraction technologies, with much of the required test site infrastructure in place already. Laboratory facilities (wave\\/tow tanks, flumes, water tunnels) are used to test concept validation models (scale 1:25--100) and design models (scale 1:10--30). The UNH Open Ocean Aquaculture (OOA) site located 1.6

  10. Power quality enhancement of renewable energy source power network using SMES system

    Microsoft Academic Search

    H. R. Seo; A. R. Kim; I. K. Yu

    2011-01-01

    This paper deals with power quality enhancement of renewable energy source power network using SMES system and describes the operation characteristics of HTS SMES system using real-toroidal-type SMES coil for smoothening the fluctuation of large-scale renewable energy source such as photovoltaic (PV) power generation system. It generates maximum power of PV array under various weather conditions. SMES unit charges and

  11. Renewable-reagent fiber optic sensor for ocean pCO2

    NASA Astrophysics Data System (ADS)

    DeGrandpre, Michael D.

    1992-03-01

    A renewable-reagent fiber optic chemical sensor has been developed for measuring the partial pressure of carbon dioxide in ocean waters. A colorimetric pH indicator is delivered at a controlled flow rate through capillary tubing to the fiber tips. The fibers measure the color changes induced by CO2 diffusion across a gas-permeable silicone membrane. Multi- wavelength detection is used to correct for system drift. Factors affecting the sensitivity and stability of the response are discussed.

  12. Energy Storage Applications in Power Systems with Renewable Energy Generation

    NASA Astrophysics Data System (ADS)

    Ghofrani, Mahmoud

    In this dissertation, we propose new operational and planning methodologies for power systems with renewable energy sources. A probabilistic optimal power flow (POPF) is developed to model wind power variations and evaluate the power system operation with intermittent renewable energy generation. The methodology is used to calculate the operating and ramping reserves that are required to compensate for power system uncertainties. Distributed wind generation is introduced as an operational scheme to take advantage of the spatial diversity of renewable energy resources and reduce wind power fluctuations using low or uncorrelated wind farms. The POPF is demonstrated using the IEEE 24-bus system where the proposed operational scheme reduces the operating and ramping reserve requirements and operation and congestion cost of the system as compared to operational practices available in the literature. A stochastic operational-planning framework is also proposed to adequately size, optimally place and schedule storage units within power systems with high wind penetrations. The method is used for different applications of energy storage systems for renewable energy integration. These applications include market-based opportunities such as renewable energy time-shift, renewable capacity firming, and transmission and distribution upgrade deferral in the form of revenue or reduced cost and storage-related societal benefits such as integration of more renewables, reduced emissions and improved utilization of grid assets. A power-pool model which incorporates the one-sided auction market into POPF is developed. The model considers storage units as market participants submitting hourly price bids in the form of marginal costs. This provides an accurate market-clearing process as compared to the 'price-taker' analysis available in the literature where the effects of large-scale storage units on the market-clearing prices are neglected. Different case studies are provided to demonstrate our operational-planning framework and economic justification for different storage applications. A new reliability model is proposed for security and adequacy assessment of power networks containing renewable resources and energy storage systems. The proposed model is used in combination with the operational-planning framework to enhance the reliability and operability of wind integration. The proposed framework optimally utilizes the storage capacity for reliability applications of wind integration. This is essential for justification of storage deployment within regulated utilities where the absence of market opportunities limits the economic advantage of storage technologies over gas-fired generators. A control strategy is also proposed to achieve the maximum reliability using energy storage systems. A cost-benefit analysis compares storage technologies and conventional alternatives to reliably and efficiently integrate different wind penetrations and determines the most economical design. Our simulation results demonstrate the necessity of optimal storage placement for different wind applications. This dissertation also proposes a new stochastic framework to optimally charge and discharge electric vehicles (EVs) to mitigate the effects of wind power uncertainties. Vehicle-to-grid (V2G) service for hedging against wind power imbalances is introduced as a novel application for EVs. This application enhances the predictability of wind power and reduces the power imbalances between the scheduled output and actual power. An Auto Regressive Moving Average (ARMA) wind speed model is developed to forecast the wind power output. Driving patterns of EVs are stochastically modeled and the EVs are clustered in the fleets of similar daily driving patterns. Monte Carlo Simulation (MCS) simulates the system behavior by generating samples of system states using the wind ARMA model and EVs driving patterns. A Genetic Algorithm (GA) is used in combination with MCS to optimally coordinate the EV fleets for their V2G services and minimize the penalty cost associated wit

  13. Renewables for sustainable village power supply

    Microsoft Academic Search

    J. Gutierrez-Vera

    2000-01-01

    In Mexico there are more than 80000 villages without electricity whatsoever. People living in these communities could reach 6 million inhabitants. The smallness and remoteness of these communities makes them eligible for decentralised remote power technologies such as photovoltaics (PV), thermosolar, wind, micro hydro and biomass. These technological applications may demonstrate the technical performance, economic competitiveness, operational viability and environmental

  14. Guide to purchasing green power. Renewable electricity, renewable energy certificates and on-site renewable generation

    SciTech Connect

    None,

    2004-09-30

    The Guide to Purchasing Green Power is intended for organizations that are considering the merits of buying green power as well as those that have decided to buy it and want help doing so. The Guide was written for a broad audience, including businesses, government agencies, universities, and all organizations wanting to diversify their energy supply and to reduce the environmental impact of their electricity use.The Guide provides an overview of green power markets and describes the necessary steps to buying green power. This section summarizes the Guide to help readers find the information they need.

  15. Removable power supply for an ocean bottom seismometer

    SciTech Connect

    Schoepf, V.L.

    1988-10-25

    This patent describes a removable power supply for use in conjunction with an ocean bottom seismometer unit, the ocean bottom seismometer unit including electrically operated instrumentation for seismic data acquisition, comprising: power means for providing electric power to the electrically operated instrumentation for seismic data acquisition of the ocean bottom seismometer unit; housing means having an exterior and sealed from outside ambience for protecting the power means separately from the electrically operated instrumentation for seismic data acquisition; connector means fixed to the exterior of the housing means and connected to the power means and the electrically operated instrumentation respectively. The connector means providing connection between the power means and the electrically operated instrumentation external to the housing means; and means for fixed securing the housing means to the ocean bottom seismometer unit.

  16. Potential for deserts to supply reliable renewable electric power

    NASA Astrophysics Data System (ADS)

    Labordena, Mercè; Lilliestam, Johan

    2015-04-01

    To avoid dangerous climate change, the electricity systems must be decarbonized by mid-century. The world has sufficient renewable electricity resources for complete power sector decarbonization, but an expansion of renewables poses several challenges for the electricity systems. First, wind and solar PV power are intermittent and supply-controlled, making it difficult to securely integrate this fluctuating generation into the power systems. Consequently, power sources that are both renewable and dispatchable, such as biomass, hydro and concentrating solar power (CSP), are particularly important. Second, renewable power has a low power density and needs vast areas of land, which is problematic both due to cost reasons and due to land-use conflicts, in particular with agriculture. Renewable and dispatchable technologies that can be built in sparsely inhabited regions or on land with low competition with agriculture would therefore be especially valuable; this land-use competition greatly limits the potential for hydro and biomass electricity. Deserts, however, are precisely such low-competition land, and are at the same time the most suited places for CSP generation, but this option would necessitate long transmission lines from remote places in the deserts to the demand centers such as big cities. We therefore study the potential for fleets of CSP plants in the large deserts of the world to produce reliable and reasonable-cost renewable electricity for regions with high and/or rapidly increasing electricity demand and with a desert within or close to its borders. The regions in focus here are the European Union, North Africa and the Middle East, China and Australia. We conduct the analysis in three steps. First, we identify the best solar generation areas in the selected deserts using geographic information systems (GIS), and applying restrictions to minimize impact on biodiversity, soils, human heath, and land-use and land-cover change. Second, we identify transmission corridors from the generation areas to the demand centers in the target regions, using a GIS-based transmission algorithm that minimizes economic, social and environmental costs. Third, we use the multi-scale energy system model Calliope to specify the optimal configuration and operation of the CSP fleet to reliably follow the demand every hour of the year in the target regions, and to calculate the levelized cost of doing so, including both generation and transmission costs. The final output will show whether and how much reliable renewable electricity can be supplied from CSP fleets in deserts to demand centers in adjacent regions, at which costs this is possible, as well as a detailed description of the routes of HVDC transmission links. We expect to find that the potential for deserts to supply reliable CSP to the regions in focus is very large in all cases, despite the long distances.

  17. Effect of ocean surface currents on wind stress, heat flux, and wind power input to the ocean

    E-print Network

    Thompson, LuAnne

    Effect of ocean surface currents on wind stress, heat flux, and wind power input to the ocean, J. T., and L. Thompson (2006), Effect of ocean surface currents on wind stress, heat flux, and wind power input to the ocean, Geophys. Res. Lett., 33, L09604, doi:10.1029/2006GL025784. 1. Introduction [2

  18. Efficient Electrochemical CO2 Conversion Powered by Renewable Energy.

    PubMed

    Kauffman, Douglas R; Thakkar, Jay; Siva, Rajan; Matranga, Christopher; Ohodnicki, Paul R; Zeng, Chenjie; Jin, Rongchao

    2015-07-22

    The catalytic conversion of CO2 into industrially relevant chemicals is one strategy for mitigating greenhouse gas emissions. Along these lines, electrochemical CO2 conversion technologies are attractive because they can operate with high reaction rates at ambient conditions. However, electrochemical systems require electricity, and CO2 conversion processes must integrate with carbon-free, renewable-energy sources to be viable on larger scales. We utilize Au25 nanoclusters as renewably powered CO2 conversion electrocatalysts with CO2 ? CO reaction rates between 400 and 800 L of CO2 per gram of catalytic metal per hour and product selectivities between 80 and 95%. These performance metrics correspond to conversion rates approaching 0.8-1.6 kg of CO2 per gram of catalytic metal per hour. We also present data showing CO2 conversion rates and product selectivity strongly depend on catalyst loading. Optimized systems demonstrate stable operation and reaction turnover numbers (TONs) approaching 6 × 10(6) molCO2 molcatalyst(-1) during a multiday (36 h total hours) CO2 electrolysis experiment containing multiple start/stop cycles. TONs between 1 × 10(6) and 4 × 10(6) molCO2 molcatalyst(-1) were obtained when our system was powered by consumer-grade renewable-energy sources. Daytime photovoltaic-powered CO2 conversion was demonstrated for 12 h and we mimicked low-light or nighttime operation for 24 h with a solar-rechargeable battery. This proof-of-principle study provides some of the initial performance data necessary for assessing the scalability and technical viability of electrochemical CO2 conversion technologies. Specifically, we show the following: (1) all electrochemical CO2 conversion systems will produce a net increase in CO2 emissions if they do not integrate with renewable-energy sources, (2) catalyst loading vs activity trends can be used to tune process rates and product distributions, and (3) state-of-the-art renewable-energy technologies are sufficient to power larger-scale, tonne per day CO2 conversion systems. PMID:26121278

  19. Predicting the Power Output of Distributed Renewable Energy Resources within a Broad Geographical Region

    E-print Network

    Chalkiadakis, Georgios

    Predicting the Power Output of Distributed Renewable Energy Resources within a Broad Geographical- mental concerns regarding their use growing, the generation of power from renewable energy sources has been hailed as the way forward to an energy-sufficient future. Renewable energy sources, however

  20. A study of particle swarm technique for renewable energy power systems

    Microsoft Academic Search

    N. Phuangpornpitak; W. Prommee; S. Tia; W. Phuangpornpitak

    2010-01-01

    Renewable power system is an innovative option for electricity generation as it is a clean energy resource. Noting the climate change becomes an important issue the whole world is currently facing, the ever-increasing price of petroleum products (now about US$ 80 a barrel) and the reduction in cost of renewable energy power systems, opportunities for renewable energy systems to address

  1. Developing an upper-level undergraduate course on renewable energy and power systems

    Microsoft Academic Search

    S. Santoso; W. Mack Grady

    2005-01-01

    In keeping up with advances in renewable energy conversion technologies and the continued growth in the renewable energy area along with its impacts on electrical power systems, we believe it is important and timely to develop an upper-level undergraduate course on renewable energy and power systems. Therefore, it is the objective of this paper to describe our efforts in developing

  2. Unlocking Electric Power in the Oceans.

    ERIC Educational Resources Information Center

    Hurwood, David L.

    1985-01-01

    Cruising or stationary ocean thermal plants could convert the vast heat energy of the ocean into electricity for islands and underdeveloped countries. This approach to energy conservation is described with suggestions for design and outputs of plants. A model project operating in Hawaii is noted. (DH)

  3. 10-year license renewal of Kuosheing Nuclear Power Plant

    SciTech Connect

    Shen, L.; Yao, D.; Hsia, D.-Yu. (Atomic Energy Council, Taipei (Taiwan, Province of China))

    1992-01-01

    As Taiwan is highly populated, stringent regulation on nuclear safety is necessary for nuclear utilization. Since the beginning of our nuclear program, the Atomic Council set the 10-year license renewal required for all the nuclear power plants in the R.O.C. The main purpose of the requirement is to evaluate intergally the safety features together with the operational performance of the nuclear power plant after a period of 10 years' operation. The Kuosheng plant is the second nuclear plant of Taiwan and has been put into commercial operation since Sep. 27, 1981. There are two units in this plant and are both BWR 6 designed reactor with Mark III containment, each unit has rated thermal power of 2894 MW. During the license renewal, both the operation history and maintenance record of Kuosheng NPP are carefully reviewed. In addition, analyses of major plant safety features and trend of plant performance are conducted. In order to ensure plant safety and to promote operational performance, several mandatory betterments are raised and which is described in the conclusions.

  4. Advanced Power Batteries for Renewable Energy Applications 3.09

    SciTech Connect

    Rodney Shane

    2011-09-30

    This report describes the research that was completed under project title â?? Advanced Power Batteries for Renewable Energy Applications 3.09, Award Number DE-EE0001112. The report details all tasks described in the Statement of Project Objectives (SOPO). The SOPO includes purchasing of test equipment, designing tooling, building cells and batteries, testing all variables and final evaluation of results. The SOPO is included. There were various types of tests performed during the project, such as; gas collection, float current monitoring, initial capacity, high rate partial state of charge (HRPSoC), hybrid pulse power characterization (HPPC), high rate capacity, corrosion, software modeling and solar life cycle tests. The grant covered a period of two years starting October 1, 2009 and ending September 30, 2011.

  5. Design considerations for energy storage power electronics interfaces for high penetration of renewable energy sources

    Microsoft Academic Search

    Junseok Song; Ruichen Zhao; Alexis Kwasinski

    2011-01-01

    This paper discusses design considerations of power electronics interfaces between renewable energy sources and energy storage. When renewable energy sources—including photovoltaic modules, wind generators, and fuel cells—are used to generate power, there are certain electrical properties of each source that need to be considered for the design of energy storage power electronics interface. In addition, energy storage's charging and discharging

  6. The Treatment of Renewable Energy Certificates, EmissionsAllowances, and Green Power Programs in State Renewables PortfolioStandards

    SciTech Connect

    Holt, Edward A.; Wiser, Ryan H.

    2007-04-17

    Twenty-one states and the District of Columbia have adopted mandatory renewables portfolio standards (RPS) over the last ten years. Renewable energy attributes-such as the energy source, conversion technology, plant location and vintage, and emissions-are usually required to verify compliance with these policies, sometimes through attributes bundled with electricity, and sometimes with the attributes unbundled from electricity and traded separately as renewable energy certificates (RECs). This report summarizes the treatment of renewable energy attributes in state RPS rules. Its purpose is to provide a source of information for states considering RPS policies, and also to draw attention to certain policy issues that arise when renewable attributes and RECs are used for RPS compliance. Three specific issues are addressed: (1) the degree to which unbundled RECs are allowed under existing state RPS programs and the status of systems to track RECs and renewable energy attributes; (2) definitions of the renewable energy attributes that must be included in order to meet state RPS obligations, including the treatment of available emissions allowances; and (3) state policies on whether renewable energy or RECs sold through voluntary green power transactions may count towards RPS obligations.

  7. How to develop renewable power in China? A cost-effective perspective.

    PubMed

    Cong, Rong-Gang; Shen, Shaochuan

    2014-01-01

    To address the problems of climate change and energy security, Chinese government strived to develop renewable power as an important alternative of conventional electricity. In this paper, the learning curve model is employed to describe the decreasing unit investment cost due to accumulated installed capacity; the technology diffusion model is used to analyze the potential of renewable power. Combined with the investment cost, the technology potential, and scenario analysis of China social development in the future, we develop the Renewable Power Optimization Model (RPOM) to analyze the optimal development paths of three sources of renewable power from 2009 to 2020 in a cost-effective way. Results show that (1) the optimal accumulated installed capacities of wind power, solar power, and biomass power will reach 169000, 20000, and 30000?MW in 2020; (2) the developments of renewable power show the intermittent feature; (3) the unit investment costs of wind power, solar power, and biomass power will be 4500, 11500, and 5700?Yuan/KW in 2020; (4) the discounting effect dominates the learning curve effect for solar and biomass powers; (5) the rise of on-grid ratio of renewable power will first promote the development of wind power and then solar power and biomass power. PMID:24578672

  8. The renewable energy applications for uninterruptible power supply based on compressed air energy storage system

    Microsoft Academic Search

    Varin Vongmanee

    2009-01-01

    The objective of this paper is to propose a modeling of the renewable energy applications for uninterruptible power supply (UPS) based on compressed air energy storage system (CAES). The system is composite technology, which composes of energy storage system and electric power supply system. The energy will transfer from the renewable energy resource to the CAES system drives the air

  9. Large-scale Ocean-based or Geothermal Power Plants by Thermoelectric Effects

    E-print Network

    Liu, Liping

    2012-01-01

    Heat resources of small temperature difference are easily accessible, free and unlimited on earth. Thermoelectric effects provide the technology for converting these heat resources directly into electricity. We present designs of electricity generators based on thermoelectric effects and using heat resources of small temperature difference, e.g., ocean water at different depths and geothermal sources, and conclude that large-scale power plants based on thermoelectric effects are feasible and economically competitive. The key observation is that the power factor of thermoelectric materials, unlike the figure of merit, can be improved by orders of magnitude upon laminating good conductors and good thermoelectric materials. The predicted large-scale power plants based on thermoelectric effects, if validated, will have a global economic and social impact for its scalability, and the renewability, free and unlimited supply of heat resources of small temperature difference on earth.

  10. Advanced building blocks of power converters for renewable energy based distributed generators

    Microsoft Academic Search

    Riming Shao; Mary Kaye; Liuchen Chang

    2011-01-01

    The power converter is a critical component of a distributed generation (DG) system, particularly for a renewable energy based distributed generator. With the rapid development and growing applications of DG systems, power converters have evolved from a traditional \\

  11. Future Energy Systems: Integrating Renewable Energy Sources into the Smart Power Grid Through Industrial Electronics

    Microsoft Academic Search

    Marco Liserre; Thilo Sauter; John Hung

    2010-01-01

    This paper discusses about integrating renewable energy sources into the smart power grid through industrial electronics. This paper discusses photovoltaic power, wind energy conversion, hybrid energy systems, and tidal energy conversion.

  12. Power Flow Controller for Renewables: Transformer-less Unified Power Flow Controller for Wind and Solar Power Transmission

    SciTech Connect

    None

    2012-02-08

    GENI Project: MSU is developing a power flow controller to improve the routing of electricity from renewable sources through existing power lines. The fast, innovative, and lightweight circuitry that MSU is incorporating into its controller will eliminate the need for a separate heavy and expensive transformer, as well as the construction of new transmission lines. MSU’s controller is better suited to control power flows from distributed and intermittent wind and solar power systems than traditional transformer-based controllers are, so it will help to integrate more renewable energy into the grid. MSU‘s power flow controller can be installed anywhere in the existing grid to optimize energy transmission and help reduce transmission congestion.

  13. PTC, ITC, or Cash Grant? An Analysis of the Choice Facing Renewable Power Projects in the United States

    Microsoft Academic Search

    Mark Bolinger; Ryan Wiser; Karlynn Cory; Ted James

    2009-01-01

    Renewable power technologies are inherently capital-intensive, often (but not always) with relatively high construction costs and low operating costs. For this reason, renewable power technologies are typically more sensitive to the availability and cost of financing than are natural gas power plants, for example. In the United States, the bulk of renewable project finance in recent years has been provided

  14. On the Wind Power Input to the Ocean General Circulation XIAOMING ZHAI

    E-print Network

    Johnson, Helen

    On the Wind Power Input to the Ocean General Circulation XIAOMING ZHAI Atmospheric, Oceanic January 2012, in final form 3 May 2012) ABSTRACT The wind power input to the ocean general circulation is usually calculated from the time-averaged wind products. Here, this wind power input is reexamined using

  15. Optimum policy for integration of renewable energy sources into the power generation system

    Microsoft Academic Search

    M. Suruz Miah; N. U. Ahmed; Monjur Chowdhury

    2012-01-01

    In this paper we propose a dynamic model representing the temporal evolution of the levels of power generation (installed capacity) from two competing sources. These are renewable and conventional (fossil) sources. The percentage penetration rates of renewable and nonrenewable sources are considered as control or decision variables. We introduce an objective functional based on energy demand, production of pollution associated

  16. A Critical Evaluation of Nuclear Power and Renewable Electricity in Asia

    Microsoft Academic Search

    Benjamin K. Sovacool

    2010-01-01

    This article judges modern nuclear power and renewable electricity technologies according to six criteria: cost; fuel availability; land degradation; water use; climate change; and safety\\/security. It concludes that when these criteria are taken into consideration, renewable electricity technologies present policy makers with a superior alternative for minimising the risk of fuel interruptions and shortages, helping improve the fragile transmission network

  17. Impacts of renewable energy regulations on the structure of power generation in China – A critical analysis

    Microsoft Academic Search

    Zhen-Yu Zhao; Jian Zuo; Lei-Lei Fan; George Zillante

    2011-01-01

    China is facing a number of energy-related challenges such as shortage of electricity supply and environmental pollution. The Government recognized the important role the renewable energy plays in the power generation structure. As a result, a series of supporting policies, laws and regulations have been issued to boost the renewable energies in China. This paper provides a critical analysis of

  18. ReRack: Power Simulation for Data Centers with Renewable Energy Generation

    E-print Network

    Renau, Jose

    ReRack: Power Simulation for Data Centers with Renewable Energy Generation Michael Brown and Jose introduces ReRack, an extensible simulation infras- tructure that can be used to evaluate the energy cost of a data cen- ter using renewable energy sources. ReRack is composed of two main components, a simulation

  19. Kenninger Renewable Energy and Power Systems Seminar April 21, 2014 10:30 am Room ME 2054

    E-print Network

    Ginzel, Matthew

    Kenninger Renewable Energy and Power Systems Seminar April 21, 2014 10:30 am Room ME 2054 Dr Engineering Department University of California ­ Los Angeles "A Technology Portfolio for a Renewable Energy storage and renewable energy conversion. This seminar will present a portfolio of renewable energy

  20. Risk Aware Robust Decision Making in Power Systems with Renewable Resources 

    E-print Network

    Thatte, Anupam Ajit

    2014-10-29

    the market participant’s point of view improved utilization of the renewable resource, through storage enabled energy arbitrage, can lead to better economic performance. The storage device can provide firming power to the output of the wind farm, enabling...

  1. A DSP based power electronics interface for alternative /renewable energy system.

    SciTech Connect

    NONE

    1999-09-28

    This report is an update on the research project involving the implementation of a DSP-based power electronics interface for alternate/renewable energy systems, that was funded by the Department of Energy under the Inventions and Innovations program.

  2. 78 FR 37324 - Preparation of Environmental Reports for Nuclear Power Plant License Renewal Applications

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-20

    ...Statement for License Renewal of Nuclear Plants'' (ADAMS Accession Nos...Plans for Environmental Reviews for Nuclear Power Plants, Supplement 1: Operating...received 3 public comments from the Nuclear Energy Institute, New York State...

  3. Recent progress in offshore renewable energy technology development

    Microsoft Academic Search

    Anthony T. Jones; Adam Westwood

    2005-01-01

    International treaties related to climate control have triggered a resurgence in development of renewable ocean energy technologies. Several demonstration projects in tidal power are scheduled to capture the tidal-generated coastal currents. Commercial-scale wave power stations exist and are delivering power to national grids. Offshore wind farms are delivering energy to shore. As government policies shift towards inclusion of renewable sources,

  4. Power-Electronic Systems for the Grid Integration of Renewable Energy Sources: A Survey

    Microsoft Academic Search

    Juan Manuel Carrasco; Leopoldo Garcia Franquelo; Jan T. Bialasiewicz; Eduardo Galván; Ramón C. Portillo Guisado; Ma. A. M. Prats; José Ignacio León; Narciso Moreno-Alfonso

    2006-01-01

    The use of distributed energy resources is increasingly being pursued as a supplement and an alternative to large conventional central power stations. The specification of a power-electronic interface is subject to requirements related not only to the renewable energy source itself but also to its effects on the power-system operation, especially where the intermittent energy source constitutes a significant part

  5. Data rate maximization by adaptive thresholding RF power management under renewable energy

    Microsoft Academic Search

    Weiguo Tang; Lei Wang

    2010-01-01

    A new adaptive thresholding power management (ATPM) scheme is proposed to maximize the data rate of RF circuits in distributed embedded systems powered by renewable energy. Considering time-varying fading channels and statistical energy harvesting processes, we propose to turn on RF circuits only when the channel gain is higher than a threshold, and adjust the RF power according to the

  6. Improving communication energy efficiency in wireless networks powered by Renewable energy sources

    Microsoft Academic Search

    Fan Zhang; Samuel T. Chanson

    2005-01-01

    Energy efficiency is an important issue in wireless networks where the nodes are powered by batteries. In this work, we analyze the energy consumption in one-transmitter-multiple-receiver communication and develop scheduling schemes to improve energy efficiency at the transmitter. Our focus is on systems powered by a renewable energy source such as solar power. We consider an environment where both energy

  7. Wind Power: A Clean and Renewable Supplement to the World's Energy Mix Michael Treadow

    E-print Network

    Mauzerall, Denise

    Wind Power: A Clean and Renewable Supplement to the World's Energy Mix Michael Treadow May 8, 2006 WWS 402d Junior Paper ­ Final Draft Abstract: Wind power harbors the potential to become a key to wind power's growth relate to its remoteness and variability, but neither is an ob- stacle too great

  8. Girl power: estrogen promotes HSC self-renewal.

    PubMed

    Carreras, Esther; Kovats, Susan

    2014-02-01

    Although some hematopoietic cell types are known to respond to sex hormones, hematopoietic stem cells (HSCs) are generally thought to function similarly in both sexes. Recently in Nature, Nakada et al. (2014) show that HSCs respond to higher levels of estrogen in females, resulting in enhanced self-renewal and increased erythropoiesis. PMID:24506879

  9. Power management strategies for a stand-alone power system using renewable energy sources and hydrogen storage

    Microsoft Academic Search

    Dimitris Ipsakis; Spyros Voutetakis; Panos Seferlis; Fotis Stergiopoulos; Costas Elmasides

    2009-01-01

    A stand-alone power system based on a photovoltaic array and wind generators that stores the excessive energy from renewable energy sources (RES) in the form of hydrogen via water electrolysis for future use in a polymer electrolyte membrane (PEM) fuel cell is currently in operation at Neo Olvio of Xanthi, Greece. Efficient power management strategies (PMSs) for the system have

  10. Renewable Power Options for Electrical Generation on Kaua'i: Economics and Performance Modeling

    SciTech Connect

    Burman, K.; Keller, J.; Kroposki, B.; Lilienthal, P.; Slaughter, R.; Glassmire, J.

    2011-11-01

    The Hawaii Clean Energy Initiative (HCEI) is working with a team led by the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to assess the economic and technical feasibility of increasing the contribution of renewable energy in Hawaii. This part of the HCEI project focuses on working with Kaua'i Island Utility Cooperative (KIUC) to understand how to integrate higher levels of renewable energy into the electric power system of the island of Kaua'i. NREL partnered with KIUC to perform an economic and technical analysis and discussed how to model PV inverters in the electrical grid.

  11. Advanced superconducting power conditioning system with SMES for effective use of renewable energy

    NASA Astrophysics Data System (ADS)

    Hamajima, T.; Tsuda, M.; Miyagi, D.; Amata, H.; Iwasaki, T.; Son, K.; Atomura, N.; Shintomi, T.; Makida, Y.; Takao, T.; Munakata, K.; Kajiwara, M.

    Since it is an urgent issue to reduce the global Carbon-dioxide in the world, renewable energy should be supplied as a large amount of the electric power. However, if a large amount of fluctuating renewable energy becomes more than adjustable amount of a utility grid capacity, instabilities such as frequency deviation might occur. We propose a system that is composed of SMES and FC-H2-Electrolyzer and also installed adjacent to Liquid Hydrogen station to cool down the SMES. Since the SMES has potentials of quick response and large I/O power, and Fuel Cell has potentials of slow response and steady power supplied from a large amount of hydrogen, we combine both storage devices and apply them to suppress the fluctuating power. We convert the fluctuating power to the constant power by using a developed prediction technology of Kalman filter to predict a trend of the fluctuating power. While the trend power should be supplied by FC or absorbed by the electrolyzer to produce hydrogen, the power difference between the renewable power and the trend power should be stored by the SMES. We simulate the power balance and analyze the required SMES capacity, design the concept of the SMES, and propose an operation algorithm for the SMES to estimate the electric efficiency of the system. It is found that the electric efficiency of the ASPCS can become greater than that of a pumped hydro-machine.

  12. Aging management of nuclear power plant containments for license renewal

    Microsoft Academic Search

    W. C. Liu; P. T. Kuo; S. S. Lee

    1997-01-01

    In 1990, the Nuclear Management and Resources Council (NUMARC), now the Nuclear Energy Institute (NEI), submitted for NRC review, the industry reports (IRs), NUMARC Report 90-01 and NUMARC Report 90-10, addressing aging management issues associated with PWR containments and BWR containments for license renewal, respectively. In 1996, the Commission amended 10 CFR 50.55a to promulgate requirements for inservice inspection of

  13. Opportunities for Synergy Between Natural Gas and Renewable Energy in the Electric Power and Transportation Sectors

    SciTech Connect

    Lee, A.; Zinaman, O.; Logan, J.

    2012-12-01

    Use of both natural gas and renewable energy has grown significantly in recent years. Both forms of energy have been touted as key elements of a transition to a cleaner and more secure energy future, but much of the current discourse considers each in isolation or concentrates on the competitive impacts of one on the other. This paper attempts, instead, to explore potential synergies of natural gas and renewable energy in the U.S. electric power and transportation sectors.

  14. Multi-port DC-DC Power Converter for Renewable Energy Application 

    E-print Network

    Chou, Hung-Ming

    2010-01-16

    year [2] . . . . . . . . . . . . . . . . 2 3 Price range of renewable electricity by technology [2] . . . . . . . . . 3 4 Characteristics of wind turbines [4] . . . . . . . . . . . . . . . . . . . 5 5 Characteristics of photovoltaic [4... subsections will describe several examples and show the importance of energy storage in renewable energy applications. 1. For Wind Power Fig. 4 shows the characteristics of wind turbines for different wind speeds (v) [4]. The X-axis is the rotor speed...

  15. Impact of Renewable Distributed Generation on Power Systems M. Begovi, A. Pregelj, A. Rohatgi D. Novosel

    E-print Network

    Impact of Renewable Distributed Generation on Power Systems M. Begovi, A. Pregelj, A. Rohatgi D the electric power distribution system. The prevailing utility strategy, so far, is to treat the DG devices generation is to have centralized plants distributing electricity through an extensive transmission

  16. The importance of energy storage in Renewable Power Generation: A review

    Microsoft Academic Search

    Gabrielle Coppez; Sunetra Chowdhury; S. P. Chowdhury

    2010-01-01

    Renewable Power Generation systems are currently preferred for clean power generation. However due to their intermittent and unpredictable nature, energy storage needs to be used to ensure that the load is met at all times. There are many possible options for energy storage and the most popular and technologically matured option, batteries, is the subject of this paper. This paper

  17. Premium power comes from renewable fuel -- or no fuel at all

    Microsoft Academic Search

    1997-01-01

    At least one common thread runs through both state and federal discussions of electric industry restructuring; instituting a renewable energy portfolio. Retail-wheeling pilot projects have revealed that a statistically significant percentage of customers will choose to pay a premium price for green power. In one pilot program in Massachusetts, 31% of residential customers selected green power. Customer participation in Phoenix-based

  18. Aging management of nuclear power plant containments for license renewal

    SciTech Connect

    Liu, W.C.; Kuo, P.T.; Lee, S.S.

    1997-09-01

    In 1990, the Nuclear Management and Resources Council (NUMARC), now the Nuclear Energy Institute (NEI), submitted for NRC review, the industry reports (IRs), NUMARC Report 90-01 and NUMARC Report 90-10, addressing aging management issues associated with PWR containments and BWR containments for license renewal, respectively. In 1996, the Commission amended 10 CFR 50.55a to promulgate requirements for inservice inspection of containment structures. This rule amendment incorporates by reference the 1992 Edition with the 1992 Addenda of Subsections IWE and IWL of the ASME Code addressing the inservice inspection of metal containments/liners and concrete containments, respectively. The purpose of this report is to reconcile the technical information and agreements resulting from the NUMARC IR reviews which are generally described in NUREG-1557 and the inservice inspection requirements of subsections IWE and IWL as promulgated in {section}50.55a for license renewal consideration. This report concludes that Subsections IWE and IWL as endorsed in {section}50.55a are generally consistent with the technical agreements reached during the IR reviews. Specific exceptions are identified and additional evaluations and augmented inspections for renewal are recommended.

  19. 75 FR 64350 - Notice of Availability of Record of Decision for the NextLight Renewable Power, LLC, Silver State...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-19

    ...the NextLight Renewable Power, LLC, Silver State Solar Project Environmental...400-megawatt (MW) solar photovoltaic (PV) power plant and facilities...decommission of a 400-MW solar photovoltaic power plant on public...

  20. The Estimated Global Ocean Wind Power Potential from QuikSCAT Observations, Accounting for Turbine

    E-print Network

    Zender, Charles

    The Estimated Global Ocean Wind Power Potential from QuikSCAT Observations, Accounting for Turbine: (949) 824-3256 Abstract For the first time, global ocean usable wind power is evaluated for modern and siting depth. Mean wind power increases by 30%, 69% and 73% within the tropics and northern and southern

  1. Suppressing the non-Gaussian statistics of Renewable Power from Wind and Solar

    E-print Network

    Anvari, M; Tabar, M Reza Rahimi; Wächter, M; Milan, P; Heinemann, D; Peinke, Joachim; Lorenz, E

    2015-01-01

    The power from wind and solar exhibits a nonlinear flickering variability, which typically occurs at time scales of a few seconds. We show that high-frequency monitoring of such renewable powers enables us to detect a transition, controlled by the field size, where the output power qualitatively changes its behaviour from a flickering type to a diffusive stochastic behaviour. We find that the intermittency and strong non-Gaussian behavior in cumulative power of the total field, even for a country-wide installation still survives for both renewable sources. To overcome the short time intermittency, we introduce a time-delayed feedback method for power output of wind farm and solar field that can change further the underlying stochastic process and suppress their strong non- gaussian fluctuations.

  2. Power electronics and its applications to renewable energy in Japan

    Microsoft Academic Search

    Junichi Arai; Kenji Iba; Toshihisa Funabashi; Yosuke Nakanishi; Kaoru Koyanagi; Ryuichi Yokoyama

    2008-01-01

    The electric utility industry is gradually undergoing restructuring and the main paradigm shift is the introduction of the principles of competition. With the level of future demand for electricity being unclear, power market players are reluctant to commit to long-term capital investment, with the result that construction of new large-scale power plants and also transmission and distribution infrastructure is typically

  3. The integration of renewable energy sources into electric power distribution systems. Volume 1: National assessment

    SciTech Connect

    Barnes, P.R.; Van Dyke, J.W. [Oak Ridge National Lab., TN (United States); Tesche, F.M. [6714 Norway Road, Dallas, TX (United States); Zaininger, H.W. [Zaininger Engineering Co., San Jose, CA (United States)

    1994-06-01

    Renewable energy technologies such as photovoltaic, solar thermal electricity, and wind turbine power are environmentally beneficial sources of electric power generation. The integration of renewable energy sources into electric power distribution systems can provide additional economic benefits because of a reduction in the losses associated with transmission and distribution lines. Benefits associated with the deferment of transmission and distribution investment may also be possible for cases where there is a high correlation between peak circuit load and renewable energy electric generation, such as photovoltaic systems in the Southwest. Case studies were conducted with actual power distribution system data for seven electric utilities with the participation of those utilities. Integrating renewable energy systems into electric power distribution systems increased the value of the benefits by about 20 to 55% above central station benefits in the national regional assessment. In the case studies presented in Vol. II, the range was larger: from a few percent to near 80% for a case where costly investments were deferred. In general, additional savings of at least 10 to 20% can be expected by integrating at the distribution level. Wind energy systems were found to be economical in good wind resource regions, whereas photovoltaic systems costs are presently a factor of 2.5 too expensive under the most favorable conditions.

  4. Wind Power: A Renewable Energy Source for Mars Transit Vehicle

    NASA Technical Reports Server (NTRS)

    Flynn, Michael; Kohout, Lisa; Kliss, Mark (Technical Monitor)

    1998-01-01

    The Martian environment presents significant design challenges for the development of power generation systems. Nuclear-based systems may not be available due to political and safety concerns. The output of photovoltaics are limited by a solar intensity of 580 W/sqm as compared to 1353 W/sqm on Earth. The presence of dust particles in the Mars atmosphere will further reduce the photovoltaic output. Also, energy storage for a 12-hour night period must be provided. In this challenging environment, wind power generation capabilities may provide a viable option as a Martian power generation system. This paper provides an analysis of the feasibility of such a system.

  5. Message passing for integrating and assessing renewable generation in a redundant power grid

    SciTech Connect

    Zdeborova, Lenka [Los Alamos National Laboratory; Backhaus, Scott [Los Alamos National Laboratory; Chertkov, Michael [Los Alamos National Laboratory

    2009-01-01

    A simplified model of a redundant power grid is used to study integration of fluctuating renewable generation. The grid consists of large number of generator and consumer nodes. The net power consumption is determined by the difference between the gross consumption and the level of renewable generation. The gross consumption is drawn from a narrow distribution representing the predictability of aggregated loads, and we consider two different distributions representing wind and solar resources. Each generator is connected to D consumers, and redundancy is built in by connecting R {le} D of these consumers to other generators. The lines are switchable so that at any instance each consumer is connected to a single generator. We explore the capacity of the renewable generation by determining the level of 'firm' generation capacity that can be displaced for different levels of redundancy R. We also develop message-passing control algorithm for finding switch sellings where no generator is overloaded.

  6. LARGE SCALE DEPLOYMENT OF RENEWABLE ENERGY BY COMBINING WIND FARMS WITH SOLAR THERMAL POWER PLANTS

    Technology Transfer Automated Retrieval System (TEKTRAN)

    The installation of megawatt-size wind turbines on 65 to 80 meter towers at Class 4 wind sites in Texas has resulted in the cheapest form of renewable energy ($0.04/kWh). However, wind farm output has a diurnal mismatch to the utility electrical loading. Combining solar thermal power plants with w...

  7. Modeling a drip irrigation system powered by a renewable energy source

    Microsoft Academic Search

    Ahmed M. Al-Zoheiry

    2006-01-01

    Food production is a problem in many of the regions in the world. Today, the process of producing food is very dependent on energy. The dependency on fossil fuels causes the cost of producing crops to increase as the prices of fuel increases. Using a renewable energy sources to power an irrigation system is a mean of decreasing the dependency

  8. The directional reactive power undervoltage protection — A protection concept for connecting decentralized renewable energy sources

    Microsoft Academic Search

    Oliver Janke

    2011-01-01

    With their increasing number, it is getting important that decentralized and renewable energy sources are supporting the stabilization of the system voltage after short voltage dropouts. Often, in the past, these generators were disconnected during network faults. This is not adequate anymore, as it would lead to a loss of a considerable amount of feed-in power. However, if the generators

  9. Oceanic Boundary Conditions for Jakobshavn Glacier: Variability and Renewal of Ilulissat Icefjord Waters, 2001-2014

    NASA Astrophysics Data System (ADS)

    Gladish, C. V.; Holland, D. M.; Rosing-Asvid, A.; Behrens, J.; Boje, J.

    2014-12-01

    Jakobshavn Glacier, West Greenland, has responded to temperature changes in Ilulissat Icefjord, into which it terminates. We collected hydrographic observations inside this silled fjord and from adjacent Disko Bay between 2001 and 2014. In the fjord basin, the summer mean temperature was 2.8 ?C from 2009 to 2013, excluding 2010, when it was 1 ?C cooler. Despite this variability, summer potential densities in the basin were in the narrow range 27.20 ? ??? 27.31 and basin water properties matched those of Disko Bay in this density layer each summer. This relation has likely held since at least 1980, implying that basin waters from 2009 and 2011-2013 were similar to those in 1998 and 1999, when Jakobshavn Glacier began to retreat, while basin waters as cool as in 2010 were likely last present in the 1980s. The 2010 basin temperature anomaly reflected larger-scale advection into Disko Bay, not local weather variability. This anomaly also shows that Ilulissat Icefjord basin waters were renewed annually or faster. Mooring time series and data from instrumented seals and halibut did not capture the 2010 anomaly but show that the basin and Disko Bay bottom temperatures vary little sub-annually, outside of summer, while fjord velocity profiles from summer 2013 imply a basin renewal timescale of about one month. Model simulations indicate that subglacial discharge from Jakobshavn Glacier could drive renewal of the fjord basin over a single summer, while baroclinic forcing from outside the fjord can not, due to the sill at the mouth. The silled nature of Ilulissat Icefjord therefore makes its renewal dynamics different from Sermilik Fjord, in east Greenland, which is rapidly renewed by external forcing.

  10. Design, modeling and testing of the Askaryan Radio Array South Pole autonomous renewable power stations

    NASA Astrophysics Data System (ADS)

    Besson, D. Z.; Kennedy, D. M.; Ratzlaff, K.; Young, R.

    2014-11-01

    We describe the design, construction and operation of the Askaryan Radio Array (ARA) Autonomous Renewable Power Stations, initially installed at the South Pole in December, 2010 with the goal of providing an independently operating 100 W power source capable of year-round operation in extreme environments. In addition to particle astrophysics applications at the South Pole, such a station can easily be, and has since been, extended to operation elsewhere, as described herein.

  11. Comparison of wind stress algorithms, datasets and oceanic power input

    E-print Network

    Yuan, Shaoyu

    2009-01-01

    If the ocean is in a statistically steady state, energy balance is a strong constraint, suggesting that the energy input into the world ocean is dissipated simultaneously at the same rate. Energy conservation is one of the ...

  12. Proceedings of the public workshop on nuclear power plant license renewal

    SciTech Connect

    Hughes, A.A.; Ligon, D.M.; Seth, S.S. (Mitre Corp., McLean, VA (USA))

    1990-04-01

    On 13 October 1989, the US Nuclear Regulatory Commission (NRC) issued an Advance Notice of Proposed Rulemaking on nuclear power plant license renewal. The notice presented the NRC's preliminary regulatory philosophy and approach for developing license renewal regulations, and solicited comments on a number of technical and policy issues. It also announced plans for a public workshop to discuss the issues and to receive comments and information. Representatives from 89 organizations attended the workshop held on 13--14 November 1989, in Reston, Virginia. Subsequently, 12 organizations submitted written comments to the NRC. This report provides a summary of both workshop and written comments.

  13. Development of a power system for cabled ocean observatories

    NASA Astrophysics Data System (ADS)

    Howe, B. M.; Kirkham, H.; El-Sharkawi, M.; Lancaster, P.; Liu, C.-C.; Lu, S.; McGinnis, T.; Schneider, K.; Upadhye, A.; Vorperian, V.

    2003-04-01

    Cabled Ocean Observatories offer the potential to deliver unprecedented amounts of power to remote instruments and sensors. The availability of sufficient power will enable new instrumentation and methods. Here we describe the present NEPTUNE power system design which will be capable of delivering an average of approximately 4 kW or a maximum of 10 kW to over 40 seafloor node locations spread over approximately 500 km x 1000 km area of seafloor. The system will have a backbone of 3500 km of standard, single conductor submarine telecommunications cable connecting the nodes and operating at 10 kV; the network will operate in a parallel mode with sea water returns at each node. A network of secondary extension cables will be developed that will allow the network to be extended up to 100 km from the backbone. The sub-sea backbone cable part of the power system includes circuit breakers so that cable faults can be isolated, and system operation can continue on unfaulted sections of the cable. A minimalist approach to the design of the backbone is essential to ensure adequate reliability. Here a configuration that places only the essential circuit breakers in the backbone is considered; a node’s science interface module (with the 10 kV-400/48 V dc/dc converter, communications electronics, and connectors) is on an easily serviceable spur cable. The percentage availability of the entire observatory is improved by segregating backbone attributes from science interface elements, making it easier to bring the full force of mission assurance techniques to bear on the backbone. [Work supported by the National Science Foundation.

  14. Environmental assessment for final rule on nuclear power plant license renewal. Final report

    SciTech Connect

    Not Available

    1991-12-01

    The Atomic Energy Act and Nuclear Regulatory Commission (NRC) regulations provide for the renewal of nuclear power plant operating licenses beyond their initial 40-year term. The Act and NRC regulations, however, do not specify the procedures, criteria, and standards that must be satisfied in order to renew a license. The NRC is promulgating a rule (10 CFR Part 54) to codify such requirements prior to the receipt of applications for license renewal. The NRC has assessed the possible environmental effects of promulgating requirements in 10 CFR Part 54 now rather than employing such requirements in an ad hoc manner in individual licensing actions. The final part 54 rule requires the development of information and analyses to identify aging problems of systems, structures, and components unique to license renewal that will be of concern during the period of extended operation and will not be controlled by existing effective programs. In general, licensee activities for license renewal may involve replacement, refurbishment, inspection, testing, or monitoring. Such actions will be generally be within the range of similar actions taken for plants during the initial operating term. These actions would be primarily confined within the plants with potential for only minor disruption to the environment. It is unlikely that these actions would change the operating conditions of plants in ways that would change the environmental effects already being experienced. Relicensing under existing regulations would also be primarily focused on aging degradation and would likely result in requirements similar to those that will result from relicensing under the final rule.

  15. Environmental assessment for final rule on nuclear power plant license renewal

    SciTech Connect

    Not Available

    1991-12-01

    The Atomic Energy Act and Nuclear Regulatory Commission (NRC) regulations provide for the renewal of nuclear power plant operating licenses beyond their initial 40-year term. The Act and NRC regulations, however, do not specify the procedures, criteria, and standards that must be satisfied in order to renew a license. The NRC is promulgating a rule (10 CFR Part 54) to codify such requirements prior to the receipt of applications for license renewal. The NRC has assessed the possible environmental effects of promulgating requirements in 10 CFR Part 54 now rather than employing such requirements in an ad hoc manner in individual licensing actions. The final part 54 rule requires the development of information and analyses to identify aging problems of systems, structures, and components unique to license renewal that will be of concern during the period of extended operation and will not be controlled by existing effective programs. In general, licensee activities for license renewal may involve replacement, refurbishment, inspection, testing, or monitoring. Such actions will be generally be within the range of similar actions taken for plants during the initial operating term. These actions would be primarily confined within the plants with potential for only minor disruption to the environment. It is unlikely that these actions would change the operating conditions of plants in ways that would change the environmental effects already being experienced. Relicensing under existing regulations would also be primarily focused on aging degradation and would likely result in requirements similar to those that will result from relicensing under the final rule.

  16. EEE 463 Electrical Power Plants (3) [F] Course (Catalog) Description

    E-print Network

    Zhang, Junshan

    EEE 463 Electrical Power Plants (3) [F] Course (Catalog) Description: Generation of electric power, energy sources. Power plant thermal cycle analysis. Cogeneration and combined cycles. Economics using fossil, nuclear and renewable, including solar, geothermal, wind, hydroelectric, biomass and ocean

  17. Transient stability and control of renewable generators based on Hamiltonian Surface Shaping and Power Flow Control: Part I-theory

    Microsoft Academic Search

    Rush D. Robinett; David G. Wilson

    2010-01-01

    The swing equations for renewable generators connected to the grid are developed and a wind turbine is used as an example. The swing equations for the renewable generators are formulated as a natural Hamiltonian system with externally applied non-conservative forces. A two-step process referred to as Hamiltonian Surface Shaping and Power Flow Control (HSSPFC) is used to analyze and design

  18. Renewable Energy in China: Xiao Qing Dao Village Power Wind/Diesel Hybrid Pilot Project

    SciTech Connect

    Not Available

    2006-01-01

    In 2000, DOE/NREL and the State Power Corporation of China (SPCC) developed a pilot project to electrify Xiao Qing Dao, a small island located in China's Yellow Sea. The project demonstrates the practicality of renewable energy systems for medium-scale, off-grid applications. It consists of four 10 k-W wind turbines connected to a 30-kW diesel generator, a 40-kW inverter and a battery bank.

  19. Ocean conditions and Columbia River salmon Testimony provided for the House Subcommittee on Power and Water

    E-print Network

    Mantua, Nathan

    Ocean conditions and Columbia River salmon Testimony provided for the House Subcommittee on Power controlling salmon marine survival in the Pacific Northwest, several ocean-climate events have been linked with fluctuations in Northwest salmon health and abundance. These include: El Niño/La Niña, the Pacific Decadal

  20. Effects of Scandinavian hydro power on storage needs in a fully renewable European power system for various transmission capacity scenarios

    NASA Astrophysics Data System (ADS)

    Kies, Alexander; Nag, Kabitri; von Bremen, Lueder; Lorenz, Elke; Heinemann, Detlev

    2015-04-01

    The penetration of renewable energies in the European power system has increased in the last decades (23.5% share of renewables in the gross electricity consumption of the EU-28 in 2012) and is expected to increase further up to very high shares close to 100%. Planning and organizing this European energy transition towards sustainable power sources will be one of the major challenges of the 21st century. It is very likely that in a fully renewable European power system wind and photovoltaics (pv) will contribute the largest shares to the generation mix followed by hydro power. However, feed-in from wind and pv is due to the weather dependant nature of their resources fluctuating and non-controllable. To match generation and consumption several solutions and their combinations were proposed like very high backup-capacities of conventional power generation (e.g. fossile or nuclear), storages or the extension of the transmission grid. Apart from those options hydro power can be used to counterbalance fluctuating wind and pv generation to some extent. In this work we investigate the effects of hydro power from Norway and Sweden on residual storage needs in Europe depending on the overlaying grid scenario. High temporally and spatially resolved weather data with a spatial resolution of 7 x 7 km and a temporal resolution of 1 hour was used to model the feed-in from wind and pv for 34 investigated European countries for the years 2003-2012. Inflow into hydro storages and generation by run-of-river power plants were computed from ERA-Interim reanalysis runoff data at a spatial resolution of 0.75° x 0.75° and a daily temporal resolution. Power flows in a simplified transmission grid connecting the 34 European countries were modelled minimizing dissipation using a DC-flow approximation. Previous work has shown that hydro power, namely in Norway and Sweden, can reduce storage needs in a renewable European power system by a large extent. A 15% share of hydro power in Europe can reduce storage needs by up to 50% with respect to stored energy. This requires however large transmission capacities between the major hydro power producers in Scandinavia and the largest consumers of electrical energy in Western Europe. We show how Scandinavian hydro power can reduce storage needs in dependency of the transmission grid for two fully renewable scenarios: The first one has its wind and pv generation capacities distributed according to an empirically derived approach. The second scenario has an optimal spatial distribution to minimize storage needs distribution of wind and pv generation capacities across Europe. We show that in both cases hydro power together with a well developed transmission grid has the potential to contribute a large share to the solution of the generation-consumption mismatch problem. The work is part of the RESTORE 2050 project (BMBF) that investigates the requirements for cross-country grid extensions, usage of storage technologies and capacities and the development of new balancing technologies.

  1. Multi-Agent Systems and Control, Intelligent Robotics, and Cybernetics. Power Electronics, Renewable Energy, and Smart Grid.

    E-print Network

    Wu, Yih-Min

    . Power Electronics, Renewable Energy, and Smart Grid. Computer Science and Engineering. Embedded Systems, Cloud/Green/Ubiquitous/Mobile Computing. Biomedical Electronics, Biomedical Imaging, Nano Electronics, Medical Electronics). Nanoelectronics / Advanced CMOS / Green Energy / Display /Bioelectronic

  2. 76 FR 78173 - Options for Developing the Regulatory Basis for Streamlining Non-Power Reactor License Renewal...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-12-16

    ...Renewal and Non-Power Reactor Emergency Preparedness AGENCY: Nuclear Regulatory Commission...Rulemaking, Office of Nuclear Reactor Regulation, U.S. Nuclear...Rulemaking, Office of Nuclear Reactor Regulation. [FR...

  3. 10 CFR Appendix B to Subpart A of... - Environmental Effect of Renewing the Operating License of a Nuclear Power Plant

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    10 Energy 2 2014-01-01 2014-01-01 false...Environmental Effect of Renewing the Operating License of a Nuclear Power Plant B Appendix B to Subpart A of Part 51 Energy NUCLEAR REGULATORY COMMISSION (CONTINUED)...

  4. Multifunctional Voltage Source Inverter for Renewable Energy Integration and Power Quality Conditioning

    PubMed Central

    Dai, NingYi; Lam, Chi-Seng; Zhang, WenChen

    2014-01-01

    In order to utilize the energy from the renewable energy sources, power conversion system is necessary, in which the voltage source inverter (VSI) is usually the last stage for injecting power to the grid. It is an economical solution to add the function of power quality conditioning to the grid-connected VSI in the low-voltage distribution system. Two multifunctional VSIs are studied in this paper, that is, inductive-coupling VSI and capacitive-coupling VSI, which are named after the fundamental frequency impedance of their coupling branch. The operation voltages of the two VSIs are compared when they are used for renewable energy integration and power quality conditioning simultaneously. The operation voltage of the capacitive-coupling VSI can be set much lower than that of the inductive-coupling VSI when reactive power is for compensating inductive loads. Since a large portion of the loads in the distribution system are inductive, the capacitive-coupling VSI is further studied. The design and control method of the multifunctional capacitive-coupling VSI are proposed in this paper. Simulation and experimental results are provided to show its validity. PMID:25177725

  5. Multifunctional voltage source inverter for renewable energy integration and power quality conditioning.

    PubMed

    Dai, NingYi; Lam, Chi-Seng; Zhang, WenChen

    2014-01-01

    In order to utilize the energy from the renewable energy sources, power conversion system is necessary, in which the voltage source inverter (VSI) is usually the last stage for injecting power to the grid. It is an economical solution to add the function of power quality conditioning to the grid-connected VSI in the low-voltage distribution system. Two multifunctional VSIs are studied in this paper, that is, inductive-coupling VSI and capacitive-coupling VSI, which are named after the fundamental frequency impedance of their coupling branch. The operation voltages of the two VSIs are compared when they are used for renewable energy integration and power quality conditioning simultaneously. The operation voltage of the capacitive-coupling VSI can be set much lower than that of the inductive-coupling VSI when reactive power is for compensating inductive loads. Since a large portion of the loads in the distribution system are inductive, the capacitive-coupling VSI is further studied. The design and control method of the multifunctional capacitive-coupling VSI are proposed in this paper. Simulation and experimental results are provided to show its validity. PMID:25177725

  6. A Measurement and Power Line Communication System Design for Renewable Smart Grids

    NASA Astrophysics Data System (ADS)

    Kabalci, E.; Kabalci, Y.

    2013-10-01

    The data communication over the electric power lines can be managed easily and economically since the grid connections are already spread around all over the world. This paper investigates the applicability of Power Line Communication (PLC) in an energy generation system that is based on photovoltaic (PV) panels with the modeling study in Matlab/Simulink. The Simulink model covers the designed PV panels, boost converter with Perturb and Observe (P&O) control algorithm, full bridge inverter, and the binary phase shift keying (BPSK) modem that is utilized to transfer the measured data over the power lines. This study proposes a novel method to use the electrical power lines not only for carrying the line voltage but also to transmit the measurements of the renewable energy generation plants. Hence, it is aimed at minimizing the additional monitoring costs such as SCADA, Ethernet-based or GSM based systems by using the proposed technique. Although this study is performed with solar power plants, the proposed model can be applied to other renewable generation systems. Consequently, the usage of the proposed technique instead of SCADA or Ethernet-based systems eliminates additional monitoring costs.

  7. Analysis of an Agent-based Electricity Market Model with Renewable Energy Power Plants by Wind and Solar Power

    NASA Astrophysics Data System (ADS)

    Iwagami, Akio; Suzuki, Hideyuki; Aihara, Kazuyuki

    In recent years, electricity markets were organized in many developed countries in the deregulation process of electric power industries. There have been many studies on electricity markets from the viewpoints of economics, mathematics, computer science, etc. Especially, agent-based models of electricity markets have been extensively studied. Meanwhile, many countries promote use of renewable energy for electricity generation. In this paper, we construct and analyze an agent-based model of electricity markets in which wind and photovoltaic power generation firms are introduced. Our results suggest that wind power generation needs to be improved in efficiency to survive in the market, and that bid prices of photovoltaic power generation are rather affected by change of the insolation amount than by change of the total demand.

  8. Electrical energy management of virtual power plants in distribution networks with renewable energy resources and energy storage systems

    Microsoft Academic Search

    Parastoo Nezamabadi; G. B. Gharehpetian

    2011-01-01

    r Abstract: Production of energy in centralized power plants and transmitted via transmission lines to the customers is always with high power losses. Distributed generation (DG) especially renewable energy resources (RES) and energy storage systems (ESS) through distributed system are very cost saving and sometimes inevitable. If these small DGs want to connect to power system and participate in energy

  9. Regulatory analysis for final rule on nuclear power plant license renewal

    SciTech Connect

    Not Available

    1991-12-01

    This regulatory analysis provides the supporting information for the final rule (10 CFR Part 54) that defines the Nuclear Regulatory Commission's requirements for renewing the operating licenses of commercial nuclear power plants. A set of four specific alternatives for the safety review of license renewal applications is defined and evaluated. These are: Alternative A-current licensing basis; Alternative B-extension of Alternative A to require assessment and managing of aging; Alternative C -- extension of Alternative B to require assessment of design differences against selected new-plant standards using probabilistic risk assessment; and Alternative D -- extension of Alternative B to require compliance with all new-plant standards. A quantitative comparison of the four alternatives in terms of impact-to-value ratio is presented, and Alternative B is the most cost-beneficial safety review alternative.

  10. Regulatory analysis for final rule on nuclear power plant license renewal. Final report

    SciTech Connect

    Not Available

    1991-12-01

    This regulatory analysis provides the supporting information for the final rule (10 CFR Part 54) that defines the Nuclear Regulatory Commission`s requirements for renewing the operating licenses of commercial nuclear power plants. A set of four specific alternatives for the safety review of license renewal applications is defined and evaluated. These are: Alternative A-current licensing basis; Alternative B-extension of Alternative A to require assessment and managing of aging; Alternative C -- extension of Alternative B to require assessment of design differences against selected new-plant standards using probabilistic risk assessment; and Alternative D -- extension of Alternative B to require compliance with all new-plant standards. A quantitative comparison of the four alternatives in terms of impact-to-value ratio is presented, and Alternative B is the most cost-beneficial safety review alternative.

  11. Development of Russian Regulatory Basis for License Renewal/Life Extension of Nuclear Power Plants

    SciTech Connect

    Pachner, Jaroslav [IAEA, P.O. Box 100, Wagramer Strasse 5, A-1400 Vienna (Austria); Kaliberda, Inna V. [Scientific and Engineering Center for Nuclear and Radiation Safety - SEC NRS, 14/23, Avtozavodskaya str., Moscow, 109280 (Russian Federation)

    2002-07-01

    By 2010, fifteen Russian nuclear power plant (NPP) units will reach the end of their scheduled service life of 30 years. An extension of NPP operation beyond the scheduled service life, which is provided for by the Russian safety standard OPB-88/97, requires a renewal of the plant operating license by the regulatory organization Gosatomnadzor (GAN). This paper presents an overview of an IAEA project aimed at assisting GAN in the development of a set of regulatory guidelines for NPP license renewal/life extension 1. The overview includes a description of the Russian regulatory strategy for life extension of NPPs and IAEA activities to facilitate drafting and application of the regulatory guidelines using international experience. (authors)

  12. Statkraft is Europe's largest generator of renewable energy and is the leading power company in Norway. The company owns, produces and develops hydropower, wind power, gas-fired power and

    E-print Network

    Morik, Katharina

    Statkraft is Europe's largest generator of renewable energy and is the leading power company countries. For our office in Düsseldorf we are currently looking to hire a System Manager Renewable Energy. Share our passion for renewable energy and be a part of tomorrow's energy world. Your department

  13. The Treatment of Renewable Energy Certificates, EmissionsAllowances, and Green Power Programs in State Renewables PortfolioStandards

    Microsoft Academic Search

    Edward A. Holt; Ryan H. Wiser

    2007-01-01

    Twenty-one states and the District of Columbia have adopted mandatory renewables portfolio standards (RPS) over the last ten years. Renewable energy attributes-such as the energy source, conversion technology, plant location and vintage, and emissions-are usually required to verify compliance with these policies, sometimes through attributes bundled with electricity, and sometimes with the attributes unbundled from electricity and traded separately as

  14. The impact of monsoon intraseasonal variability on renewable power generation in India

    NASA Astrophysics Data System (ADS)

    Dunning, C. M.; Turner, A. G.; Brayshaw, D. J.

    2015-06-01

    India is increasingly investing in renewable technology to meet rising energy demands, with hydropower and other renewables comprising one-third of current installed capacity. Installed wind-power is projected to increase 5-fold by 2035 (to nearly 100GW) under the International Energy Agency's New Policies scenario. However, renewable electricity generation is dependent upon the prevailing meteorology, which is strongly influenced by monsoon variability. Prosperity and widespread electrification are increasing the demand for air conditioning, especially during the warm summer. This study uses multi-decadal observations and meteorological reanalysis data to assess the impact of intraseasonal monsoon variability on the balance of electricity supply from wind-power and temperature-related demand in India. Active monsoon phases are characterized by vigorous convection and heavy rainfall over central India. This results in lower temperatures giving lower cooling energy demand, while strong westerly winds yield high wind-power output. In contrast, monsoon breaks are characterized by suppressed precipitation, with higher temperatures and hence greater demand for cooling, and lower wind-power output across much of India. The opposing relationship between wind-power supply and cooling demand during active phases (low demand, high supply) and breaks (high demand, low supply) suggests that monsoon variability will tend to exacerbate fluctuations in the so-called demand-net-wind (i.e., electrical demand that must be supplied from non-wind sources). This study may have important implications for the design of power systems and for investment decisions in conventional schedulable generation facilities (such as coal and gas) that are used to maintain the supply/demand balance. In particular, if it is assumed (as is common) that the generated wind-power operates as a price-taker (i.e., wind farm operators always wish to sell their power, irrespective of price) then investors in conventional facilities will face additional weather-volatility through the monsoonal impact on the length and frequency of production periods (i.e. their load-duration curves).

  15. Renewable energy power in U. S. electric utility applications past progress, current status, future prospects

    SciTech Connect

    De Meo, E.A.

    1985-02-01

    During the past ten years, over two billion dollars of public and private funds have been applied toward the development of new renewable power sources. The efforts conducted over this period have led to several primary results: Lofty dreams of large energy contributions by year 2000 have been replaced by realistic projections and the realization that successful development of new power technologies takes a number of years. We have also come to realize that a contribution of one or two percent of U.S. energy needs by year 2000 from a new technology would represent a truly significant achievement, would imply productive capital investments of tens of billions of dollars, and would signal the emergence of a very healthy power option whose ultimate role would be influenced primarily by normal market forces.

  16. Salt Water Activated Power System (SWAPS) for ocean buoys and related platforms

    Microsoft Academic Search

    M. W. Turner; J. G. Cleland; J. Baker

    2009-01-01

    Ocean buoys often rely on batteries, solar cells, and wind and wave generated power to drive on-board instrumentation and communications equipment. Power demands are increasing as instrument requirements are added and deployment times extended. Un-tethered, station-keeping buoys also use much more energy and power for propulsion. Mil3, Inc has developed a superior Seawater Activated Power Source (SWAPSTM, patent-applied) which is

  17. Subsurface Hybrid Power Options for Oil & Gas Production at Deep Ocean Sites

    SciTech Connect

    Farmer, J C; Haut, R; Jahn, G; Goldman, J; Colvin, J; Karpinski, A; Dobley, A; Halfinger, J; Nagley, S; Wolf, K; Shapiro, A; Doucette, P; Hansen, P; Oke, A; Compton, D; Cobb, M; Kopps, R; Chitwood, J; Spence, W; Remacle, P; Noel, C; Vicic, J; Dee, R

    2010-02-19

    An investment in deep-sea (deep-ocean) hybrid power systems may enable certain off-shore oil and gas exploration and production. Advanced deep-ocean drilling and production operations, locally powered, may provide commercial access to oil and gas reserves otherwise inaccessible. Further, subsea generation of electrical power has the potential of featuring a low carbon output resulting in improved environmental conditions. Such technology therefore, enhances the energy security of the United States in a green and environmentally friendly manner. The objective of this study is to evaluate alternatives and recommend equipment to develop into hybrid energy conversion and storage systems for deep ocean operations. Such power systems will be located on the ocean floor and will be used to power offshore oil and gas exploration and production operations. Such power systems will be located on the oceans floor, and will be used to supply oil and gas exploration activities, as well as drilling operations required to harvest petroleum reserves. The following conceptual hybrid systems have been identified as candidates for powering sub-surface oil and gas production operations: (1) PWR = Pressurized-Water Nuclear Reactor + Lead-Acid Battery; (2) FC1 = Line for Surface O{sub 2} + Well Head Gas + Reformer + PEMFC + Lead-Acid & Li-Ion Batteries; (3) FC2 = Stored O2 + Well Head Gas + Reformer + Fuel Cell + Lead-Acid & Li-Ion Batteries; (4) SV1 = Submersible Vehicle + Stored O{sub 2} + Fuel Cell + Lead-Acid & Li-Ion Batteries; (5) SV2 = Submersible Vehicle + Stored O{sub 2} + Engine or Turbine + Lead-Acid & Li-Ion Batteries; (6) SV3 = Submersible Vehicle + Charge at Docking Station + ZEBRA & Li-Ion Batteries; (7) PWR TEG = PWR + Thermoelectric Generator + Lead-Acid Battery; (8) WELL TEG = Thermoelectric Generator + Well Head Waste Heat + Lead-Acid Battery; (9) GRID = Ocean Floor Electrical Grid + Lead-Acid Battery; and (10) DOC = Deep Ocean Current + Lead-Acid Battery.

  18. Implications of the North Atlantic Oscillation for a UK-Norway Renewable Power System

    NASA Astrophysics Data System (ADS)

    Ely, Caroline; Brayshaw, David; Methven, John; Cox, James; Pearce, Oliver

    2014-05-01

    Wind power capacity in the UK is increasing, and new transmission links are proposed with Norway where electricity is primarily produced through hydroelectric generation. The impact of climate variability on such an interconnected power system incorporating different renewable sources therefore merits investigation. This study examines the effect of the North Atlantic Oscillation (NAO), the dominant large-scale pattern of atmospheric variability affecting northern Europe, on an integrated UK-Norway power system with growing reliance on wind power. Wind and temperature data from the NCEP/NCAR reanalysis (1948-2010) are used to model demand and wind power using simple models. 'Demand net wind' (DNW) is estimated for positive, neutral, and negative NAO, focusing on March when Norwegian hydropower reserves approach their minimum and the combined system might be most susceptible to meteorological variations. It is found that the cold and still conditions associated with the NAO negative state (compared to NAO positive or neutral) result in greater demand and decreased wind production. The resulting increase in DNW in NAO negative relative to NAO neutral, under a 2020 power system scenario, would be equivalent to an approximately 25% increase in the present-day rate of Norwegian hydropower usage during March. This represents a marked increase in the magnitude of the power system's sensitivity to NAO variability.

  19. Economic and technological aspects of the market introduction of renewable power technologies

    NASA Astrophysics Data System (ADS)

    Worlen, Christine M.

    Renewable energy, if developed and delivered with appropriate technologies, is cleaner, more evenly distributed, and safer than conventional energy systems. Many countries and several states in the United States promote the development and introduction of technologies for "green" electricity production. This dissertation investigates economic and technological aspects of this process for wind energy. In liberalized electricity markets, policy makers use economic incentives to encourage the adoption of renewables. Choosing from a large range of possible policies and instruments is a multi-criteria decision process. This dissertation evaluates the criteria used and the trade-offs among the criteria, and develops a hierarchical flow scheme that policy makers can use to choose the most appropriate policy for a given situation. Economic incentives and market transformation programs seek to reduce costs through mass deployment in order to make renewable technologies competitive. Cost reduction is measured in "experience curves" that posit negative exponential relationships between cumulative deployment and production cost. This analysis reveals the weaknesses in conventional experience curve analyses for wind turbines, and concludes that the concept is limited by data availability, a weak conceptual foundation, and inappropriate statistical estimation. A revised model specifies a more complete set of economic and technological forces that determine the cost of wind power. Econometric results indicate that experience and upscaling of turbine sizes accounted for the observed cost reduction in wind turbines in the United States, Denmark and Germany between 1983 and 2001. These trends are likely to continue. In addition, future cost reductions will result from economies of scale in production. Observed differences in the performance of theoretically equivalent policy instruments could arise from economic uncertainty. To test this hypothesis, a methodology for the quantitative comparison of economic incentive schemes and their effect on uncertainty and investor behavior in renewable power markets is developed using option value theory of investment. Critical investment thresholds compared with actual benefit-cost ratios for several case studies in Germany indicate that uncertainty in prices for wind power and green certificates would delay investment. In Germany, the fixed-tariff system effectively removes this barrier.

  20. Estimated global ocean wind power potential from QuikSCAT observations, accounting for turbine characteristics and siting

    E-print Network

    Zender, Charles

    Click Here for Full Article Estimated global ocean wind power potential from QuikSCAT observations, global ocean usable wind power is evaluated for modern offshore turbine characteristics including hub height, usable portion of the wind speed distribution, and siting depth. Mean wind power increases by 30

  1. An analysis for increasing the penetration of renewable energies by optimal sizing of pumped-storage power plants

    Microsoft Academic Search

    M. Khatibi; M. Jazaeri

    2008-01-01

    A great amount of the energy generated by renewable energy-based generation units, e.g. wind farms, is often rejected because of network restrictions. Moreover, most of renewable energy sources, such as wind and solar, are uncertain and uncontrollable. In order to overcome these drawbacks, the rejected energy can be applied to pumped storage power plants and reutilized via hydro-turbines when needed.

  2. A Review of Hybrid Renewable\\/Alternative Energy Systems for Electric Power Generation: Configurations, Control, and Applications

    Microsoft Academic Search

    M. H. Nehrir; C. Wang; K. Strunz; H. Aki; R. Ramakumar; J. Bing; Z. Miao; Z. Salameh

    2011-01-01

    This paper, prepared by a special task force of the IEEE PES Renewable Technologies Subcommittee, is a review of hybrid renewable\\/alternative energy (RE\\/AE) power generation systems focusing on energy sustainability. It highlights some important issues and challenges in the design and energy manage- ment of hybrid RE\\/AE systems. System configurations, generation unit sizing, storage needs, and energy management and control

  3. Renewable Energy as a Tool to Assure Continuity of Low Emissions in the Brazilian Electric Power Sector

    Microsoft Academic Search

    Osvaldo Soliano Pereira; Tereza Mousinho Reis; R. G. B. de Araujo; F. F. Gongalves

    2006-01-01

    In the Brazilian Electric Sector more than 80% of its installed capacity is based on hydro and biomass energy. A new legal framework has imposed roles for renewable sources of energy, establishing that 10% of electric power must come from these sources over the next twenty years. Historically, hydro power has been the key source of electricity in Brazil. In

  4. Preliminary evaluation of the Section 1603 treasury grant program for renewable power projects in the United States

    Microsoft Academic Search

    Mark Bolinger; Ryan Wiser; Naïm Darghouth

    2010-01-01

    This article evaluates the first year of the Section 1603 Treasury cash grant program, which enables renewable power projects in the US to elect cash grants in lieu of the federal tax credits that are otherwise available. To date, the program has been heavily subscribed, particularly by wind power projects, which had received 86% of the nearly $2.6 billion in

  5. A DSP based power electronics interface for alternate/renewable energy systems. Quarterly report 3.

    SciTech Connect

    NONE

    2000-03-31

    This report is an update on the research project involving the implementation of a DSP based power electronics interface for alternate/renewable energy systems that was funded by the Department of Energy under the Inventions and Innovations program 1998. The objective of this research is to develop a utility interface (dc to ac converter) suitable to interconnect alternate/renewable energy sources to the utility system. The DSP based power electronics interface in comparison with existing methods will excel in terms of efficiency, reliability and cost. Moreover DSP-based control provides the flexibility to upgrade/modify control algorithms to meet specific system requirements. The proposed interface will be capable of maintaining stiffness of the ac voltages at the point of common coupling regardless of variation in the input dc bus voltage. This will be achieved without the addition of any extra components to the basic interface topology but by inherently controlling the inverter switching strategy in accordance to the input voltage variation.

  6. The vulnerabilities of the power-grid system: renewable microgrids as an alternative source of energy.

    PubMed

    Meyer, Victor; Myres, Charles; Bakshi, Nitin

    2010-03-01

    The objective of this paper is to analyse the vulnerabilities of current power-grid systems and to propose alternatives to using fossil fuel power generation and infrastructure solutions in the form of microgrids, particularly those from renewable energy sources. One of the key potential benefits of microgrids, apart from their inherent sustainability and ecological advantages, is increased resilience. The analysis is targeted towards the context of business process outsourcing in India. However, much of the research on vulnerabilities has been derived from the USA and as such many of the examples cite vulnerabilities in the USA and other developed economies. Nevertheless, the vulnerabilities noted are to a degree common to all grid systems, and so the analysis may be more broadly applicable. PMID:20494879

  7. Agent-based power management of microgrids including renewable energy power generation

    Microsoft Academic Search

    C. M. Colson; M. H. Nehrir

    2011-01-01

    Future smart grids may rely on microgrid systems that integrate localized generation, load, and storage assets into autonomous power system entities. Seen as an enabling technology, microgrids offer solutions for both customers and system operators as building blocks of expanding power networks capable of broadly integrating distributed energy resources (DER) and providing a means to optimize local assets based on

  8. On the Variability of Wind Power Input to the Oceans with a Focus on the Subpolar North Atlantic

    E-print Network

    Wunsch, Carl

    On the Variability of Wind Power Input to the Oceans with a Focus on the Subpolar North Atlantic and is presumed to be similar in three dimensions. Total wind power input is generally always positive, while

  9. Integrating Variable Renewable Energy in Electric Power Markets: Best Practices from International Experience (Fact Sheet)

    SciTech Connect

    Not Available

    2014-10-01

    Many countries--reflecting very different geographies, markets, and power systems--are successfully managing high levels of variable renewable energy (RE) on the grid. Australia (South Australia), Denmark, Germany, Ireland, Spain, and the United States (Colorado and Texas), for example, have effectively integrated variable RE utilizing diverse approaches. Analysis of the results from these case studies reveals a wide range of mechanisms that can be used to accommodate high penetrations of variable RE (e.g., from new market designs to centralized planning). Nevertheless, the myriad approaches collectively suggest that governments can best enable variable RE grid integration by implementing best practices in five areas of intervention: lead public engagement, particularly for new transmission; coordinate and integrate planning; develop rules for market evolution that enable system flexibility; expand access to diverse resources and geographic footprint of operations; and improve system operations.

  10. Analysis of public comments on the proposed rule on nuclear power plant license renewal

    SciTech Connect

    Not Available

    1991-12-01

    This report provides a summary and analysis of public comments on the proposed license renewal rule for the nuclear power plants (10 CFR Part 54) published in the Federal Register on 17 July 1990. It also documents the NRC's resolution of the issues raised by the commenters. Comments from 121 organizations and 76 individuals were reviewed and analyzed to identify the issues, including those pertaining to the adequacy of the licensing basis, the performance of an integrated plant assessment, backfit considerations, and need for public hearings. The analysis included grouping of commenters' views according to the issues raised. The public comments analyzed in this report were taken into consideration in the development of the final rule and revisions to the supporting documents.

  11. Analysis of public comments on the proposed rule on nuclear power plant license renewal

    SciTech Connect

    Not Available

    1991-12-01

    This report provides a summary and analysis of public comments on the proposed license renewal rule for the nuclear power plants (10 CFR Part 54) published in the Federal Register on 17 July 1990. It also documents the NRC`s resolution of the issues raised by the commenters. Comments from 121 organizations and 76 individuals were reviewed and analyzed to identify the issues, including those pertaining to the adequacy of the licensing basis, the performance of an integrated plant assessment, backfit considerations, and need for public hearings. The analysis included grouping of commenters` views according to the issues raised. The public comments analyzed in this report were taken into consideration in the development of the final rule and revisions to the supporting documents.

  12. 75 FR 6378 - Covanta Pylmouth Renewable Energy Limited Partnership Covanta Energy Marketing LLC Covanta Power...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-02-09

    ...DEPARTMENT OF ENERGY Federal Energy Regulatory Commission [Docket...ER10-410-000] Covanta Pylmouth Renewable Energy Limited Partnership Covanta Energy...February 1, 2010, Covanta Pylmouth Renewable Energy Limited Partnership,...

  13. The Energy Harvesting Eel: a small subsurface ocean\\/river power generator

    Microsoft Academic Search

    George W. Taylor; Joseph R. Burns; Sean M. Kammann; William B. Powers; Thomas R. Welsh

    2001-01-01

    The Energy Harvesting Eel (Eel) is a new device that uses piezoelectric polymers to convert the mechanical flow energy, available in oceans and rivers, to electrical power. Eel generators make use of the regular trail of traveling vortices behind a bluff body to strain the piezoelectric elements; the resulting undulating motion resembles that of a natural eel swimming. Internal batteries

  14. Workload Shaping to Mitigate Variability in Renewable Power Use by Data Centers

    E-print Network

    Gupta, Rajesh

    ) and proposes a novel approach for scheduling workload that incorporates use of renewable energy sources. We costs. These include integration of renewable energy [2], [3], improved cooling [4], [5] and improved storage costs for non-renewable energy savings. In this paper, we present analysis of the effectiveness

  15. Hawaii Renewable Hydrogen Program Policy Evaluation & Recommendations

    E-print Network

    Hawaii Renewable Hydrogen Program Policy Evaluation & Recommendations Final Report August 2012 #12;Hawaii Renewable Hydrogen Program: Policy Recommendations 2 Project Title: Hawaii Renewable Hydrogen of Ocean and Earth Science and Technology ­ Hawaii Natural Energy Institute Award Number: Contract No

  16. ICREPQ (Intern. Conf. On Renewable Energies and Power Quality) 2003, Vigo (Spain) 9-11 april 2003. ECONOMIC FORMALISM FOR OPTIMIZING THE DESIGN AND ENERGY

    E-print Network

    Paris-Sud XI, Université de

    ICREPQ (Intern. Conf. On Renewable Energies and Power Quality) 2003, Vigo (Spain) 9-11 april 2003 supplier (EDF) Inverter Solar production Wind production Fig. 1: Summary diagram of all possible energy Energies and Power Quality) 2003, VIGO : Spain (2003)" #12;ICREPQ (Intern. Conf. On Renewable Energies

  17. Study on 10 kVDC powered junction box for a cabled ocean observatory system

    NASA Astrophysics Data System (ADS)

    Chen, Yan-hu; Yang, Can-jun; Li, De-jun; Jin, Bo; Chen, Ying

    2013-04-01

    A cabled ocean observatory system that can provide abundant power and broad bandwidth communication for undersea instruments is developed. A 10 kV direct current (kVDC) with up to 10 kW power, along with 1 Gigabit/sec Ethernet communication, can be transmitted from the shore to the seafloor through an umbilical armored cable. A subsea junction box is fixed at a cable terminal, enabling the extension of up to nine connections. The box consists of three main pressure vessels that perform power conversion, power distribution, and real-time communication functions. A method of stacking modules is used to design the power conversion system in order to reduce the 10 kV voltage to levels that can power the attached instruments. A power distribution system and an Ethernet communication system are introduced to control the power supply and transmit data or commands between the terminals and the shore station, respectively. Specific validations of all sections were qualified in a laboratory environment prior to the sea trial. The ocean observatory system was then deployed at the coast of the East China Sea along with three in situ instruments for a 14-day test. The results show that this high voltage-powered observatory system is effective for subsea long-term and real-time observations.

  18. License renewal and power upgrade of the Cornell University TRIGA reactor

    SciTech Connect

    Aderhold, Howard C. [Nuclear Science and Engineering Program, Ward Laboratory of Nuclear Engineering, Cornell University, Ithaca, NY (United States)

    1984-07-01

    The Cornell Mark II TRIGA reactor has been a principal facility for instruction and research in nuclear science and engineering at Cornell, and it has been extensively used by other departments at Cornell and by nearby universities and industries. Initially the fuel was low hydride, 8.5w/o 19%-enriched, aluminum clad; in 1974 it was changed to high-hydride, stainless-steel-clad. The maximum power has been 100 kW, with pulses to $2, and operation has been on a one-shift demand basis. Annual energy generation of 50 MWH has been typical. Standard features include a 4-inch tangential port and our 6-inch radial ports, a thermal column with hohlraum and vertical access, a central thimble, a 'rabbit', and a set of dry irradiation tubes, replacing the 'Lazy Susan'. The license was renewed and amended in November 1983; the new limits are 500 kW and $3 pulses. Physical changes to the facility included addition of a water-to-water heat exchanger and of a diffuser at the water outlet {approx} 60 cm above the core. The flow rate is 300 liters per minute in the primary (reactor) side of the heat exchanger. The temperature of the chilled water entering the secondary of the exchanger is {approx} 12?C; its flow rate is adjusted by a servo-controlled by-pass valve to maintain the desired range of pool water temperature. Steps taken to go to higher power included rearrangement of fuel elements to increase excess reactivity, recalibration of control rods, and power vs ion chamber current calibrations at successively higher power by comparing the rate of rise of pool temperature with a known rate using electrical heating elements. Steady-state operation has been done up to 480 kW (nominal) but pulsing at the newly allowed higher levels has not been tested as yet.

  19. Reconstruction of 137Cs activity in the ocean following the Fukushima Daiichi Nuclear Power Plant Accident

    NASA Astrophysics Data System (ADS)

    Tsumune, Daisuke; Aoyama, Michio; Tsubono, Takaki; Tateda, Yutaka; Misumi, Kazuhiro; Hayami, Hiroshi; Toyoda, Yasuhiro; Maeda, Yoshiaki; Yoshida, Yoshikatsu; Uematsu, Mitsuo

    2014-05-01

    A series of accidents at the Fukushima Dai-ichi Nuclear Power Plant following the earthquake and tsunami of 11 March 2011 resulted in the release of radioactive materials to the ocean by two major pathways, direct release from the accident site and atmospheric deposition. We reconstructed spatiotemporal variability of 137Cs activity in the ocean by the comparison model simulations and observed data. We employed a regional scale and the North Pacific scale oceanic dispersion models, an atmospheric transport model, a sediment transport model, a dynamic biological compartment model for marine biota and river runoff model to investigate the oceanic contamination. Direct releases of 137Cs were estimated for more than 2 years after the accident by comparing simulated results and observed activities very close to the site. The estimated total amounts of directly released 137Cs was 3.6±0.7 PBq. Directly release rate of 137Cs decreased exponentially with time by the end of December 2012 and then, was almost constant. The daily release rate of 137Cs was estimated to be 3.0 x 1010 Bq day-1 by the end of September 2013. The activity of directly released 137Cs was detectable only in the coastal zone after December 2012. Simulated 137Cs activities attributable to direct release were in good agreement with observed activities, a result that implies the estimated direct release rate was reasonable, while simulated 137Cs activities attributable to atmospheric deposition were low compared to measured activities. The rate of atmospheric deposition onto the ocean was underestimated because of a lack of measurements of dose rate and air activity of 137Cs over the ocean when atmospheric deposition rates were being estimated. Observed 137Cs activities attributable to atmospheric deposition in the ocean helped to improve the accuracy of simulated atmospheric deposition rates. Although there is no observed data of 137Cs activity in the ocean from 11 to 21 March 2011, observed data of marine biota should reflect the history of 137Cs activity in this early period. The comparisons between simulated 137Cs activity of marine biota by a dynamic biological compartment and observed data also suggest that simulated 137Cs activity attributable to atmospheric deposition was underestimated in this early period. In addition, river runoff model simulations suggest that the river flux of 137Cs to the ocean was effective to the 137Cs activity in the ocean in this early period. The sediment transport model simulations suggests that the inventory of 137Cs in sediment was less than 10

  20. Economic analysis of biomass power generation schemes under renewable energy initiative with Renewable Portfolio Standards (RPS) in Korea.

    PubMed

    Moon, Ji-Hong; Lee, Jeung-Woo; Lee, Uen-Do

    2011-10-01

    An economic analysis of biomass power generation was conducted. Two key technologies--direct combustion with a steam turbine and gasification with a syngas engine--were mainly examined. In view of the present domestic biomass infrastructure of Korea, a small and distributed power generation system ranging from 0.5 to 5 MW(e) was considered. It was found that gasification with a syngas engine becomes more economically feasible as the plant size decreases. Changes in the economic feasibilities with and without RPS or heat sales were also investigated. A sensitivity analysis of each system was conducted for representative parameters. Regarding the cost of electricity generation, electrical efficiency and fuel cost significantly affect both direct combustion and gasification systems. Regarding the internal rate of return (IRR), the heat sales price becomes important for obtaining a higher IRR, followed by power generation capacity and electrical efficiency. PMID:21856151

  1. Renewable Electricity Futures Study. Volume 4: Bulk Electric Power Systems: Operations and Transmission Planning

    SciTech Connect

    Milligan, M.; Ela, E.; Hein, J.; Schneider, T.; Brinkman, G.; Denholm, P.

    2012-06-01

    The Renewable Electricity Futures (RE Futures) Study investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050. The analysis focused on the sufficiency of the geographically diverse U.S. renewable resources to meet electricity demand over future decades, the hourly operational characteristics of the U.S. grid with high levels of variable wind and solar generation, and the potential implications of deploying high levels of renewables in the future. RE Futures focused on technical aspects of high penetration of renewable electricity; it did not focus on how to achieve such a future through policy or other measures. Given the inherent uncertainties involved with analyzing alternative long-term energy futures as well as the multiple pathways that might be taken to achieve higher levels of renewable electricity supply, RE Futures explored a range of scenarios to investigate and compare the impacts of renewable electricity penetration levels (30%-90%), future technology performance improvements, potential constraints to renewable electricity development, and future electricity demand growth assumptions. RE Futures was led by the National Renewable Energy Laboratory (NREL) and the Massachusetts Institute of Technology (MIT).

  2. 526 IEEE JOURNAL OF OCEANIC ENGINEERING, VOL. 26, NO. 4, OCTOBER 2001 Power Systems for Autonomous Underwater Vehicles

    E-print Network

    Singh, Hanumant

    -transfer (charging) techniques for Autonomous Underwater Vehicles (AUVs) operating within an Autonomous Ocean526 IEEE JOURNAL OF OCEANIC ENGINEERING, VOL. 26, NO. 4, OCTOBER 2001 Power Systems for Autonomous Underwater Vehicles Albert M. Bradley, Michael D. Feezor, Member, IEEE, Hanumant Singh, and F. Yates Sorrell

  3. 2008 Renewable Energy Data Book

    SciTech Connect

    Not Available

    2009-07-01

    This Renewable Energy Data Book for 2008 provides facts and figures on energy in general, renewable electricity in the United States, global renewable energy development, wind power, solar energy, geothermal power, biopower, hydropower, advanced water power, hydrogen, renewable fuels, and clean energy investments.

  4. RenewableS 2011 GLOBAL STATUS REPORT

    E-print Network

    Kostic, Milivoje M.

    power accounted for nearly 36% of renewable generation, followed by biomass, hydropower, and solar thermal power (CSP), solar water heating systems, and biofuels ­ grew at average rates ranging from around capacity of many renewable energy technologies ­ including solar PV, wind power, concentrating solar

  5. Regulatory analysis of proposed amendments to regulations concerning the environmental review for renewal of nuclear power plant operating licenses

    SciTech Connect

    Not Available

    1991-08-01

    This regulatory analysis provides the supporting information for a proposed rule that will amend the Nuclear Regulatory Commission's requirements for environmental review of applications for renewal of nuclear power plant operating licenses. After considering various options, the staff identified and analyzed two major alternatives. Alternative A is to not amend the regulations and to perform environmental reviews under the existing regulations. Alternative B is to assess, on a generic basis, the environmental impacts of renewing the operating license of individual nuclear power plants, and define the issues that will need to be further analyzed on a case-by-case basis. The findings of this assessment are to be codified in 10 CFR Part 51. The staff has selected Alternative B as the preferred alternative. 4 refs., 5 tabs.

  6. Global numeric analysis of a moored ocean current turbine testing platform

    Microsoft Academic Search

    Allison R. Cribbs; James H. VanZwieten

    2010-01-01

    In response to Florida's growing energy needs and drive to develop renewable power, Florida Atlantic University's Center for Ocean Energy Technology (COET) plans to deploy a mooring near the core of the Gulf Stream off southeast Florida's coast. This mooring system testing platform will be used to evaluate the performance of prototype ocean current turbines including COET's 20 kW turbine

  7. Integration of Electric Energy Storage into Power Systems with Renewable Energy Resources 

    E-print Network

    Xu, Yixing 1985-

    2012-10-26

    This dissertation investigates the distribution and transmission systems reliability and economic impact of energy storage and renewable energy integration. The reliability and economy evaluation framework is presented. Novel operation strategies...

  8. Integration of renewable energy sources: reliability-constrained power system planning and operations using computational intelligence 

    E-print Network

    Wang, Lingfeng

    2009-05-15

    Renewable sources of energy such as wind turbine generators and solar panels have attracted much attention because they are environmentally friendly, do not consume fossil fuels, and can enhance a nation’s energy security. As a result, recently more...

  9. Regulatory analysis for amendments to regulations for the environmental review for renewal of nuclear power plant operating licenses. Final report

    SciTech Connect

    NONE

    1996-05-01

    This regulatory analysis provides the supporting information for a proposed rule that will amend the Nuclear Regulatory Commission`s environmental review requirements for applications for renewal of nuclear power plant operating licenses. The objective of the proposed rulemaking is to improve regulatory efficiency by providing for the generic evaluation of certain environmental impacts associated with nuclear plant license renewal. After considering various options, the staff identified and analyzed two major alternatives. With Alternative A, the existing regulations would not be amended. This option requires that environmental reviews be performed under the existing regulations. Alternative B is to assess, on a generic basis, the environmental impacts of renewing the operating license of individual nuclear power plants, and define the issues that will need to be further analyzed on a case-by-case basis. In addition, Alternative B removes from NRC`s review certain economics-related issues. The findings of this assessment are to be codified in 10 CFR 51. The staff has selected Alternative B as the preferred alternative.

  10. An ocean kinetic energy converter for low-power applications using piezoelectric disk elements

    NASA Astrophysics Data System (ADS)

    Viñolo, C.; Toma, D.; Mànuel, A.; del Rio, J.

    2013-09-01

    The main problem facing long-term electronic system deployments in the sea, is to find a feasible way to supply them with the power they require. Harvesting mechanical energy from the ocean wave oscillations and converting it into electrical energy, provides an alternative method for creating self-contained power sources. However, the very low and varying frequency of ocean waves, which generally varies from 0.1 Hz to 2 Hz, presents a hurdle which has to be overcome if this mechanical energy is to be harvested. In this paper, a new sea wave kinetic energy converter is described using low-cost disk piezoelectric elements, which has no dependence on their excitement frequency, to feed low-consumption maritime-deployed electronic devices. The operating principles of the piezoelectric device technique are presented, including analytical formulations describing the transfer of energy. Finally, a prototypical design, which generates electrical energy from the motion of a buoy, is introduced. The paper concludes with the the behavior study of the piezoelectric prototype device as a power generator.

  11. Landing Marine-derived Renewable Energy: Optimising Power Cable Routing in the Nearshore Environment

    Microsoft Academic Search

    Tom Keane; Brian Mullins; Peter Phipps

    2010-01-01

    Numerous studies have demonstrated that a vast unexploited source of energy can be derived from the marine environment. Recent evolution of the energy market and looming EU renewable energy uptake targets for 2020 have driven a huge explosion of interest in exploiting this resource, triggering both governments and industry to move forward in undertaking feasibility assessments and demonstration projects for

  12. Renewable Energy Price-Stability Benefits in Utility Green Power Programs

    SciTech Connect

    Bird, L. A.; Cory, K. S.; Swezey, B. G.

    2008-08-01

    This paper examines utility experiences when offering the fixed-price benefits of renewable energy in green pricing programs, including the methods utilized and the impact on program participation. It focuses primarily on utility green pricing programs in states that have not undergone electric industry restructuring.

  13. Wind power! Marketing renewable energy on tribal lands and the struggle for just sustainability

    Microsoft Academic Search

    Miranda J. Brady; Salma Monani

    2012-01-01

    Using a case study approach and employing the critical framework of just sustainability, this article examines the ambivalent intersections of marketing and social\\/environmental justice as articulated through the public rhetoric of corporate entities that promote renewable energy generated on American Indian tribal lands. Because of its critical interest in the empowerment of disenfranchised communities through a shift away from traditional

  14. Reburning renewable biomass for emissions control and ash deposition effects in power generation 

    E-print Network

    Oh, Hyuk Jin

    2009-05-15

    Cattle biomass (CB) has been proposed as a renewable, supplementary fuel for co-firing and reburning. Reburning coal with CB has the potential to reduce NOx and Hg emissions from coal fired systems. The present research focuses on three areas...

  15. Power to the People: Electric Utility Restructuring and the Commitment to Renewable Energy

    Microsoft Academic Search

    Michael K. Heiman; Barry D. Solomon

    2004-01-01

    With electric generation responsible for 41 percent of U.S anthropogenic carbon dioxide (CO2) emissions from energy use, development of clean energy sources is essential if the United States is to reduce release of greenhouse gases and slow global warming. Many proponents of sustainable energy anticipate that electric generation from renewable sources would thrive in a deregulated market, driven by consumer

  16. Taxonomy based trend discovery of renewable energy technologies in desalination and power generation

    Microsoft Academic Search

    Gihan Dawelbait; Toufic Mezher; Wei Lee Woon; Andreas Henschel

    2010-01-01

    Renewable energy (RE) technologies are increasingly viewed as critically important since the noticeable depletion of fossil fuel. Knowledge that facilitates forecasting the likely growth and consequences of emergent technologies is essential for well-informed technology management. Acquiring and analyzing such knowledge is hampered by the amount of data available in publications. In order to elucidate the advance of technologies, we want

  17. The integration of renewable energy sources into electric power distribution systems. Volume 2, Utility case assessments

    SciTech Connect

    Zaininger, H.W.; Ellis, P.R.; Schaefer, J.C. [Zaininger Engineering Co., San Jose, CA (United States)

    1994-06-01

    Electric utility distribution system impacts associated with the integration of renewable energy sources such as photovoltaics (PV) and wind turbines (WT) are considered in this project. The impacts are expected to vary from site to site according to the following characteristics: (1) The local solar insolation and/or wind characteristics; (2) renewable energy source penetration level; (3) whether battery or other energy storage systems are applied; and (4) local utility distribution design standards and planning practices. Small, distributed renewable energy sources are connected to the utility distribution system like other, similar kW- and MW-scale equipment and loads. Residential applications are expected to be connected to single-phase 120/240-V secondaries. Larger kw-scale applications may be connected to three-phase secondaries, and larger hundred-kW and MW-scale applications, such as MW-scale windfarms or PV plants, may be connected to electric utility primary systems via customer-owned primary and secondary collection systems. Small, distributed renewable energy sources installed on utility distribution systems will also produce nonsite-specific utility generation system benefits such as energy and capacity displacement benefits, in addition to the local site-specific distribution system benefits. Although generation system benefits are not site-specific, they are utility-specific, and they vary significantly among utilities in different regions. In addition, transmission system benefits, environmental benefits and other benefits may apply. These benefits also vary significantly among utilities and regions. Seven utility case studies considering PV, WT, and battery storage were conducted to identify a range of potential renewable energy source distribution system applications.

  18. Restructuring and renewable energy developments in California:using Elfin to simulate the future California power market

    SciTech Connect

    Kirshner, Dan; Kito, Suzie; Marnay, Chris; Pickle, Steve; Schumacher, Katja; Sezgen,Osman; Wiser, Ryan

    1998-06-01

    We provide some basic background information on support for renewable in California on the expected operation of the power pool and bilateral markets, and on the three key policy types modeled here. We discuss the Elfin production cost and expansion planning model as well as key assumptions that we made to model the future California pool. We present results from the successful Elfin models runs. We discuss the implications of the study, as well as key areas for future research. Additional information on results, Elfin's expansion planning logic, and resource options can be found in the appendices.

  19. Power-Aware Task Motion for Enhancing Dynamic Range

    E-print Network

    Chou, Pai H.

    . They are being built today to draw energy from solar power, wind power, or even ocean waves. They representPower-Aware Task Motion for Enhancing Dynamic Range of Embedded Systems with Renewable Energy and energy scavenging devices, in order to maximize their utility when battery and A/C power are unavail

  20. Impacts of Western Area Power Administration`s power marketing alternatives on utility demand-side management and conservation and renewable energy programs

    SciTech Connect

    Cavallo, J.D.; Germer, M.F.; Tompkins, M.M.

    1995-03-01

    The Western Area Power Administration (Western) requires all of its long-term firm power customers to implement programs that promote the conservation of electric energy or facilitate the use of renewable energy resources. Western has also proposed that all customers develop integrated resource plans that include cost-effective demand-side management programs. As part of the preparation of Western`s Electric Power Marketing Environmental Impact Statement, Argonne National Laboratory (ANL) developed estimates of the reductions in energy demand resulting from Western`s conservation and renewable energy activities in its Salt Lake City Area Office. ANL has also estimated the energy-demand reductions from cost-effective, demand-side management programs that could be included in the integrated resource plans of the customers served by Western`s Salt Lake City Area Office. The results of this study have been used to adjust the expected hourly demand for Western`s major systems in the Salt Lake City Area. The expected hourly demand served as the basis for capacity expansion plans develops with ANL`s Production and Capacity Expansion (PACE) model.

  1. 75 FR 76055 - Nebraska Public Power District Cooper Nuclear Station; Notice of Issuance of Renewed Facility...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-07

    ...Nebraska Public Power District Cooper Nuclear Station; Notice...Additional 20-Year Period and Record of Decision...that the U.S. Nuclear Regulatory Commission...Nebraska Public Power District (NPPD...Technical Information Service, U.S....

  2. Implementation and control of electrolysers to achieve high penetrations of renewable power

    Microsoft Academic Search

    E. Troncoso; M. Newborough

    2007-01-01

    The mass deployment of electrolysers, within a power system serving a region of high wind resource, as the enabling mechanism for achieving five key objectives is assessed (that is: a very high installed capacity of wind power plant (WPP); zero wind curtailment during times of low demand; a very high load factor for thermal power plant; an electricity supply of

  3. State Renewable Electricity Profiles

    EIA Publications

    2012-01-01

    Presents a summary of current and recent historical data for the renewable electric power industry. The data focuses on net summer capacity and net generation for each type of renewable generator, as well as fossil-fired and nuclear power plant types, for the period 2006 through 2010.

  4. Analysis of Concentrating Solar Power with Thermal Energy Storage in a California 33% Renewable Scenario

    SciTech Connect

    Denholm, P.; Wan, Y. H.; Hummon, M.; Mehos, M.

    2013-03-01

    This analysis evaluates CSP with TES in a scenario where California derives 33% of its electricity from renewable energy sources. It uses a commercial grid simulation tool to examine the avoided operational and capacity costs associated with CSP and compares this value to PV and a baseload generation with constant output. Overall, the analysis demonstrates several properties of dispatchable CSP, including the flexibility to generate during periods of high value and avoid generation during periods of lower value. Of note in this analysis is the fact that significant amount of operational value is derived from the provision of reserves in the case where CSP is allowed to provide these services. This analysis also indicates that the 'optimal' configuration of CSP could vary as a function of renewable penetration, and each configuration will need to be evaluated in terms of its ability to provide dispatchable energy, reserves, and firm capacity. The model can be used to investigate additional scenarios involving alternative technology options and generation mixes, applying these scenarios within California or in other regions of interest.

  5. 2009 Renewable Energy Data Book, August 2010

    SciTech Connect

    Not Available

    2010-08-01

    This Renewable Energy Data Book for 2009 provides facts and figures on energy in general, renewable electricity in the United States, global renewable energy development, wind power, solar energy, geothermal power, biopower, hydropower, advanced water power, hydrogen, renewable fuels, and clean energy investments.

  6. 2010 Renewable Energy Data Book (Book)

    SciTech Connect

    Gelman, R.

    2011-10-01

    This Renewable Energy Data Book for 2010 provides facts and figures on energy in general, renewable electricity in the United States, global renewable energy development, wind power, solar energy, geothermal power, biopower, hydropower, advanced water power, hydrogen, renewable fuels, and clean energy investments.

  7. 2010 Renewable Energy Data Book (Book)

    Microsoft Academic Search

    Gelman

    2011-01-01

    This Renewable Energy Data Book for 2010 provides facts and figures on energy in general, renewable electricity in the United States, global renewable energy development, wind power, solar energy, geothermal power, biopower, hydropower, advanced water power, hydrogen, renewable fuels, and clean energy investments.

  8. An utility interactive power electronics interface for alternate\\/renewable energy systems

    Microsoft Academic Search

    Wajiha Shireen; M. S. Arefeen

    1996-01-01

    The foreseeable shortages in conventional sources of electric power has increased the emphasis on the research and development of alternate sources of energy. In order to make a noteworthy impact, the alternate sources of energy need to be utility interactive by means of a power electronic interface (a DC to AC converter). The inherent assumption in the control of DC

  9. Biomass supported solar thermal hybrid power plant for continuous electricity generation from renewable sources

    Microsoft Academic Search

    Shaheen Hasan Chowdhury; Amanullah Maung Than Oo; Palash Kumar Banerjee

    2012-01-01

    At present electricity generation from solar sources is being reached a remarkable edge. A large scale electrical energy can be generated using concentrating solar thermal hybrid power plant with storage system. It is fact that solar thermal power plant (STPP) cannot operate stably and continuously due to variability of solar irradiation. This paper proposed a optimal operating mode of hybrid

  10. Financing Home Energy and Renewable Energy Improvements with FHA PowerSaver Loans (Fact Sheet)

    SciTech Connect

    Not Available

    2014-07-01

    This fact sheet is a revision to the PowerSaver Loan Benefits fact sheet from April 2014. It describes how the U.S. Department of Housing and Urban Development (HUD) PowerSaver Loan Program offers borrowers low-cost FHA-insured loans to make energy-saving improvements to their homes.

  11. A probabilistic study of electric power systems considering the uncertainties of renewable generation and loads

    Microsoft Academic Search

    Justin Goza; Kevin Wedeward; Michael Smith

    2011-01-01

    This paper presents an approach based upon probabilistic load flow to study the effect of wind gener- ation and variation in loads on an electric power grid. A probabilistic approach was adopted due to the uncertainty associated with wind generation and power consumption. A new method of selecting random variables from historical data is implemented by finding the times of

  12. Ocean Engineering at UNH THE OCEAN ENGINEERING program at UNH provides students with hands-on

    E-print Network

    Pringle, James "Jamie"

    Ocean Engineering at UNH THE OCEAN ENGINEERING program at UNH provides students with hands-on opportunities for research in ocean renewable energy, remotely operated vehicles, ocean mapping, ocean acoustics, and coastal processes. The Jere A. Chase Ocean Engineering Laboratory is equipped with state

  13. Marine Renewable Energy and Cetaceans

    Microsoft Academic Search

    Sarah J. Dolman; Mick Green; Mark P. Simmonds

    There is an ongoing development of offshore renewable energy projects worldwide. Marine wind power technology is the most advanced and tidal and wave power projects are creating increasing interest. Marine renewable energy projects to date have been focused in northern Europe, yet developments are also planned and underway in other parts of the world. Whilst these offshore renewable energy developments

  14. Potential impacts of electric power production utilizing natural gas, renewables and carbon capture and sequestration on US Freshwater resources.

    PubMed

    Tidwell, Vincent C; Malczynski, Leonard A; Kobos, Peter H; Klise, Geoffrey T; Shuster, Erik

    2013-08-01

    Carbon capture and sequestration (CCS) has important implications relative to future thermoelectric water use. A bounding analysis is performed using past greenhouse gas emission policy proposals and assumes either all effected capacity retires (lower water use bound) or is retrofitted (upper bound). The analysis is performed in the context of recent trends in electric power generation expansion, namely high penetration of natural gas and renewables along with constrained cooling system options. Results indicate thermoelectric freshwater withdrawals nationwide could increase by roughly 1% or decrease by up to 60% relative to 2009 levels, while consumption could increase as much as 21% or decrease as much as 28%. To identify where changes in freshwater use might be problematic at a regional level, electric power production has been mapped onto watersheds with limited water availability (where consumption exceeds 70% of gauged streamflow). Results suggest that between 0.44 and 0.96 Mm(3)/d of new thermoelectric freshwater consumption could occur in watersheds with limited water availability, while power plant retirements in these watersheds could yield 0.90 to 1.0 Mm(3)/d of water savings. PMID:23789965

  15. Greenhouse gas and air pollutant emission reduction potentials of renewable energy--case studies on photovoltaic and wind power introduction considering interactions among technologies in Taiwan.

    PubMed

    Kuo, Yu-Ming; Fukushima, Yasuhiro

    2009-03-01

    To achieve higher energy security and lower emission of greenhouse gases (GHGs) and pollutants, the development of renewable energy has attracted much attention in Taiwan. In addition to its contribution to the enhancement of reliable indigenous resources, the introduction of renewable energy such as photovoltaic (PV) and wind power systems reduces the emission of GHGs and air pollutants by substituting a part of the carbon- and pollutant-intensive power with power generated by methods that are cleaner and less carbon-intensive. To evaluate the reduction potentials, consequential changes in the operation of different types of existing power plants have to be taken into account. In this study, a linear mathematical programming model is constructed to simulate a power mix for a given power demand in a power market sharing a cost-minimization objective. By applying the model, the emission reduction potentials of capacity extension case studies, including the enhancement of PV and wind power introduction at different scales, were assessed. In particular, the consequences of power mix changes in carbon dioxide, nitrogen oxides, sulfur oxides, and particulates were discussed. Seasonally varying power demand levels, solar irradiation, and wind strength were taken into account. In this study, we have found that the synergetic reduction of carbon dioxide emission induced by PV and wind power introduction occurs under a certain level of additional installed capacity. Investigation of a greater variety of case studies on scenario development with emerging power sources becomes possible by applying the model developed in this study. PMID:19320274

  16. 78 FR 37281 - Revisions to Environmental Review for Renewal of Nuclear Power Plant Operating Licenses

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-20

    ...V. Related Issues of Importance A. Fukushima Events B. Removal of References...Consideration of the recent events at the Fukushima Dai-ichi Nuclear Power Plant, (2...term ``historic properties.'' A. Fukushima Events On March 11, 2011, a...

  17. Reliability Modeling and Simulation of Composite Power Systems with Renewable Energy Resources and Storage 

    E-print Network

    Kim, Hagkwen

    2013-05-24

    shade, shear effect and wind direction are also reflected. For solar modules with titled surface, more accurate hourly photovoltaic power in a specific location is calculated with the physical specifications. There exists a certain level of correlation...

  18. Environmental Technology Verification Report - Electric Power and Heat Production Using Renewable Biogas at Patterson Farms

    EPA Science Inventory

    The U.S. EPA operates the Environmental Technology Verification program to facilitate the deployment of innovative technologies through performance verification and information dissemination. A technology area of interest is distributed electrical power generation, particularly w...

  19. Maximizing nuclear power plant performance via mega-uprates and subsequent license renewal

    E-print Network

    DeWitte, Jacob D. (Jacob Dominic)

    2014-01-01

    The goal of this thesis is to develop a methodology to evaluate the engineering and economic implications of maximizing performance of the United States' commercial fleet of nuclear power plants. This methodology addresses ...

  20. Offshore Renewable Energy R&D (Fact Sheet)

    SciTech Connect

    Not Available

    2011-10-01

    This fact sheet describes the offshore renewable energy R&D efforts at NREL's NWTC. As the United States increases its efforts to tap the domestic energy sources needed to diversify its energy portfolio and secure its energy supply, more attention is being focused on the rich renewable resources located offshore. Offshore renewable energy sources include offshore wind, waves, tidal currents, ocean and river currents, and ocean thermal gradients. According to a report published by the National Renewable Energy Laboratory (NREL) in 2010,1 U.S. offshore wind resources have a gross potential generating capacity four times greater than the nation's present electric capacity, and the Electric Power Research Institute estimates that the nation's ocean energy resources could ultimately supply at least 10% of its electric supply. For more than 30 years, NREL has advanced the science of renewable energy while building the capabilities to guide rapid deployment of commercial applications. Since 1993, NREL's National Wind Technology Center (NWTC) has been the nation's premier wind energy research facility, specializing in the advancement of wind technologies that range in size from a kilowatt to several megawatts. For more than 8 years, the NWTC has been an international leader in the field of offshore floating wind system analysis. Today, researchers at the NWTC are taking their decades of experience and extensive capabilities and applying them to help industry develop cost-effective hydrokinetic systems that convert the kinetic energy in water to provide power for our nation's heavily populated coastal regions. The center's capabilities and experience cover a wide spectrum of wind and water energy engineering disciplines, including atmospheric and ocean fluid mechanics, aerodynamics; aeroacoustics, hydrodynamics, structural dynamics, control systems, electrical systems, and testing.

  1. Giant Clams and Rising CO2: Light May Ameliorate Effects of Ocean Acidification on a Solar-Powered Animal.

    PubMed

    Watson, Sue-Ann

    2015-01-01

    Global climate change and ocean acidification pose a serious threat to marine life. Marine invertebrates are particularly susceptible to ocean acidification, especially highly calcareous taxa such as molluscs, echinoderms and corals. The largest of all bivalve molluscs, giant clams, are already threatened by a variety of local pressures, including overharvesting, and are in decline worldwide. Several giant clam species are listed as 'Vulnerable' on the IUCN Red List of Threatened Species and now climate change and ocean acidification pose an additional threat to their conservation. Unlike most other molluscs, giant clams are 'solar-powered' animals containing photosynthetic algal symbionts suggesting that light could influence the effects of ocean acidification on these vulnerable animals. In this study, juvenile fluted giant clams Tridacna squamosa were exposed to three levels of carbon dioxide (CO2) (control ~400, mid ~650 and high ~950 ?atm) and light (photosynthetically active radiation 35, 65 and 304 ?mol photons m-2 s-1). Elevated CO2 projected for the end of this century (~650 and ~950 ?atm) reduced giant clam survival and growth at mid-light levels. However, effects of CO2 on survival were absent at high-light, with 100% survival across all CO2 levels. Effects of CO2 on growth of surviving clams were lessened, but not removed, at high-light levels. Shell growth and total animal mass gain were still reduced at high-CO2. This study demonstrates the potential for light to alleviate effects of ocean acidification on survival and growth in a threatened calcareous marine invertebrate. Managing water quality (e.g. turbidity and sedimentation) in coastal areas to maintain water clarity may help ameliorate some negative effects of ocean acidification on giant clams and potentially other solar-powered calcifiers, such as hard corals. PMID:26083404

  2. Giant Clams and Rising CO2: Light May Ameliorate Effects of Ocean Acidification on a Solar-Powered Animal

    PubMed Central

    Watson, Sue-Ann

    2015-01-01

    Global climate change and ocean acidification pose a serious threat to marine life. Marine invertebrates are particularly susceptible to ocean acidification, especially highly calcareous taxa such as molluscs, echinoderms and corals. The largest of all bivalve molluscs, giant clams, are already threatened by a variety of local pressures, including overharvesting, and are in decline worldwide. Several giant clam species are listed as ‘Vulnerable’ on the IUCN Red List of Threatened Species and now climate change and ocean acidification pose an additional threat to their conservation. Unlike most other molluscs, giant clams are ‘solar-powered’ animals containing photosynthetic algal symbionts suggesting that light could influence the effects of ocean acidification on these vulnerable animals. In this study, juvenile fluted giant clams Tridacna squamosa were exposed to three levels of carbon dioxide (CO2) (control ~400, mid ~650 and high ~950 ?atm) and light (photosynthetically active radiation 35, 65 and 304 ?mol photons m-2 s-1). Elevated CO2 projected for the end of this century (~650 and ~950 ?atm) reduced giant clam survival and growth at mid-light levels. However, effects of CO2 on survival were absent at high-light, with 100% survival across all CO2 levels. Effects of CO2 on growth of surviving clams were lessened, but not removed, at high-light levels. Shell growth and total animal mass gain were still reduced at high-CO2. This study demonstrates the potential for light to alleviate effects of ocean acidification on survival and growth in a threatened calcareous marine invertebrate. Managing water quality (e.g. turbidity and sedimentation) in coastal areas to maintain water clarity may help ameliorate some negative effects of ocean acidification on giant clams and potentially other solar-powered calcifiers, such as hard corals. PMID:26083404

  3. Renewable Energy Association

    NSDL National Science Digital Library

    As the trade association for the UK bioenergy industry, British Biogen's mission is to promote and coordinate the commercial development of biomass as a renewable fuel resource for energy production. British Biogen has merged with the Renewable Power Association. By clicking on the Renewable Energy tab, users will find information on the different subject areas. REA adds new information based upon what we discover and updates these subject fields.

  4. Supply Adequacy Issues in Renewable Energy and Hydro-Based Power Systems

    Microsoft Academic Search

    Egill Benedikt Hreinsson

    2006-01-01

    Supply adequacy represents the systems ability to meet demand on an extended time scale in view of the inherent fluctuation and uncertainty in demand and supply, the non- storability of power and the lead time inherent in capacity additions. With auction based short term spot markets, spot prices should theoretically provide the correct economic signals for ensuring supply adequacy and

  5. Barriers to the adoption of renewable and energy-efficient technologies in the Vietnamese power sector

    E-print Network

    Boyer, Edmond

    information as well as lack of a demonstrated track record; vi. Financial: lack of investment capital and unsatisfactory government policies. Barriers to geothermal power are related to information and awareness as the key to overcoming the abovementioned barriers. They recommend investing more in R&D activities

  6. Barriers to the adoption of renewable and energy-efficient technologies in the Vietnamese power sector

    E-print Network

    Boyer, Edmond

    track record; vi. Financial: lack of investment capital and financing instruments; vii. Cultural and unsatisfactory government policies. Barriers to geothermal power are related to information and awareness as the key to overcoming the abovementioned barriers. They recommend investing more in R&D activities

  7. Dynamic analyses of regenerative fuel cell power for potential use in renewable residential applications

    Microsoft Academic Search

    James D. Maclay; Jacob Brouwer; G. Scott Samuelsen

    2006-01-01

    A model of a solar-hydrogen powered residence, in both stand-alone and grid parallel configurations, was developed using Matlab\\/Simulink®. The model assesses the viability of employing a regenerative fuel cell (RFC) as an energy storage device to be used with photovoltaic (PV) electrical generation. Other modes of energy storage such as batteries and hybrid storage were also evaluated. Analyses of various

  8. Feasibility Study of Biopower in East Helena, Montana. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Moriarty, K.

    2013-02-01

    The U.S. Environmental Protection Agency (EPA) developed the RE-Powering America's Land initiative to reuse contaminated sites for renewable energy generation when aligned with the community's vision for the site. The former American Smelting and Refining Company (Asarco) smelter in East Helena, Montana, was selected for a feasibility study under the initiative. Biomass was chosen as the renewable energy resource based on the wood products industry in the area. Biopower was selected as the technology based on Montana's renewable portfolio standard (RPS) requiring utilities to purchase renewable power.

  9. Renewable Energy Technology

    ERIC Educational Resources Information Center

    Daugherty, Michael K.; Carter, Vinson R.

    2010-01-01

    In many ways the field of renewable energy technology is being introduced to a society that has little knowledge or background with anything beyond traditional exhaustible forms of energy and power. Dotson (2009) noted that the real challenge is to inform and educate the citizenry of the renewable energy potential through the development of…

  10. High-power high-brightness solar laser approach for renewable Mg recovery from MgO

    NASA Astrophysics Data System (ADS)

    Almeida, Joana; Liang, Dawei

    2014-08-01

    Hydrogen and heat energy from the reaction of magnesium with water can be used for engines and fuel cells. However, at least 4000 K is necessary for magnesium oxide reduction. Ultra high brightness solar-pumped lasers become essential to make this renewable process technology efficient and economically competitive. 2.3 mg/kJ solar laser - induced magnesium production efficiency has been achieved by T. Yabe et al., in 2012, by focusing a 53 W solar laser beam on a mixture of MgO with Si as reducing agent. This result is however far from the 12.1 mg/kJ attained with 2 kW/mm2 CO2 laser beam. To improve substantially the solar laser - induced Mg production efficiency, a simple high-power, high brightness Nd:YAG solar laser pumping approach is proposed. The solar radiation is both collected and concentrated by four Fresnel lenses, and redirected towards a Nd:YAG laser head by four plane folding mirrors. A fused-silica secondary concentrator is used to compress the highly concentrated solar radiation to a laser rod. Optimum pumping conditions and laser resonator parameters are found through ZEMAXand LASCADnumerical analysis. High-record solar laser beam brightness figure of merit - defined as the ratio between laser power and the product of Mx 2 and My 2 - of 10.5 W is numerically achieved, being 5.5 times higher than the previous record and about 1600 times more than that of the most powerful Nd:YAG solar laser. 8340 W/mm2 is numerically achieved at its focal region, which can quadruple the magnesium production efficiency with clean energy.

  11. Removal of ambiguity of two-dimensional power spectra obtained by processing ship radar images of ocean waves

    NASA Astrophysics Data System (ADS)

    Atanassov, V.; Rosenthal, W.; Ziemer, F.

    1985-01-01

    The usual spatial power spectra of ocean wave images taken from PPI of a ship radar show an ambiguity in the wave propagation direction. A simple numerical procedure is suggested and realized to remove this ambiguity. It makes use of the data from two consecutive turns of the radar antenna as well as of the wave dispersion law. The results obtained show a good agreement with the ground truth.

  12. California Energy Commission: Ocean Energy

    NSDL National Science Digital Library

    This California Energy Commission website discusses how electrical power can be generated from tidal power, wave power, ocean thermal energy conversion, ocean currents, ocean winds, salinity gradients, and other ocean phenomena. Users can learn how different areas of the ocean vary in their potential energy production. The site presents the history of ocean energy production and the issues associated with permitting an ocean wave-energy conversion facility. Users can find links to ocean energy education and to companies and research groups involved with ocean energy development.

  13. Development research for wind power weather insurance index through analysis of weather elements and new renewable energy

    NASA Astrophysics Data System (ADS)

    Park, Ki-Jun; jung, jihoon

    2014-05-01

    Recently, social interests and concerns regarding weather risk are gradually growing with increase in frequency of unusual phenomena. Actually, the threat to many vulnerable industries (sensitive to climate conditions) such as agriculture, architecture, logistics, transportation, clothing, home appliance, and food is increasing. According to climate change scenario reports published by National Institute of Meteorological Research (NIMR) in 2012, temperature and precipitation are expected to increase by 4.8% and 13.2% respectively with current status of CO2 emissions (RCP 8.5) at the end of the 21st century. Furthermore, most of areas in Korea except some mountainous areas are also expected to shift from temperate climate to subtropical climate. In the context of climate change, the intensity of severe weathers such as heavy rainfalls and droughts is enhanced, which, in turn, increases the necessity and importance of weather insurance. However, most insurance market is small and limited to policy insurance like crop disaster insurance, and natural disaster insurance in Korea. The reason for poor and small weather insurance market could result from the lack of recognition of weather risk management even though all economic components (firms, governments, and households) are significantly influenced by weather. However, fortunately, new renewable energy and leisure industry which are vulnerable to weather risk are in a long term uptrend and the interest of weather risk is also getting larger and larger in Korea. So, in the long run, growth potential of weather insurance market in Korea might be higher than ever. Therefore, in this study, the capacity of power generation per hour and hourly wind speed are analyzed to develop and test weather insurance index for wind power, and then the effectiveness of weather insurance index are investigated and the guidance will be derived to objectively calculate the weather insurance index.

  14. Programs in Renewable Energy

    SciTech Connect

    Not Available

    1990-01-01

    Our nation faces significant challenges as we enter the 1990s: securing a reliable supply of competitively priced energy, improving the quality of our environment, and increasing our share of foreign markets for goods and services. The US Department of Energy's (DOE) Programs in Renewable Energy are working toward meeting these challenges by developing the technologies that make use of our nation's largest energy resource: renewable energy. The sunlight, wind biomass, flowing water, ocean energy, and geothermal energy that make up the renewable energy resource can be found throughout our nation. These resources can provide all the forms of energy our nation needs: liquid fuels, electricity, and heating and cooling. Renewable energy meets about 10% of our need for these forms of energy today, yet the potential contribution is many times greater. DOE's Programs in Renewable Energy are working side-by-side with American industry to develop the technologies that convert renewable energy resources into practical, cost-competitive energy. After a decade of progress in research, several of these technologies are poised to make large contributions during the 1990s and beyond. This booklet provides an overview of the renewable energy programs and their plans for FY 1990. Sources of additional information are listed at the back of the booklet. 48 figs., 4 tabs.

  15. Innovative Power-Augmentation-Guide-Vane Design of Wind-Solar Hybrid Renewable Energy Harvester for Urban High Rise Application

    NASA Astrophysics Data System (ADS)

    Tong, Chong Wen; Zainon, M. Z.; Chew, Poh Sin; Kui, Soo Chun; Keong, Wee Seng; Chen, Pan Kok

    2010-06-01

    To generate greater quantities of energy from wind, the most efficient solution would be by increasing the wind speed. Also, due to the decreasing number of economic wind energy sites, there are plans to place wind turbines closer to populated areas. To site wind turbines out from rural areas, the current problems of wind turbines need to be resolved, especially visual impact, poor starting behaviour in low wind speeds, noise and danger caused by blade failure. In this paper, a patented wind-solar hybrid renewable energy harvester is introduced. It is a compact system that integrates and optimizes several green elements and can be built on the top (or between upper levels) of high rise buildings or structures. This system can be used in remote and urban areas, particularly at locations where the wind speed is lower and more turbulent. It overcomes the inferior aspect on the low wind speed by guiding and increasing the speed of the high altitude free-stream wind through fixed or yaw-able power-augmentation-guide-vane (PAGV) before entering the wind turbine (straight-bladed vertical axis wind turbine, VAWT in this project) at center portion. PAGV is a new and innovative design where its appearance or outer design can be blended into the building architecture without negative visual impact. From the studies, it is shown that the wind speed increment in the PAGV can be produced according to the Bernoulli's principle. Computational fluid dynamics (CFD) simulation is used to optimize the geometry of the PAGV and the simulation results demonstrated the technical possibility of this innovative concept. The PAGV replaces the free air-stream from wind by multiple channels of speed-increased and directional-controlled air-stream. With the PAGV, this lift-type VAWT can be self-started and its size can be reduced for a given power output. The design is also safer since the VAWT is enclosed by the PAGV. By integrating the PAGV with the VAWT (the diameter and height of PAGV are 2 times larger than the VAWT's), the predicted power generated (at free-stream wind speed = 3.5 m/s) is 1.25 times higher than the VAWT that has the same size as the PAGV. This new wind energy generation configuration should generate interest in the international market, even for regions with weaker winds. The correlation between CFD simulation and wind tunnel test will be carried out and reported elsewhere.

  16. Solar Energy Education. Renewable energy: a background text. [Includes glossary

    SciTech Connect

    Not Available

    1985-01-01

    Some of the most common forms of renewable energy are presented in this textbook for students. The topics include solar energy, wind power hydroelectric power, biomass ocean thermal energy, and tidal and geothermal energy. The main emphasis of the text is on the sun and the solar energy that it yields. Discussions on the sun's composition and the relationship between the earth, sun and atmosphere are provided. Insolation, active and passive solar systems, and solar collectors are the subtopics included under solar energy. (BCS)

  17. Over Three years of Monitoring 129I spread in Pacific Ocean After the 2011 Fukushima Daiichi Nuclear Power Plant Accident

    NASA Astrophysics Data System (ADS)

    Chang, C. C.; Burr, G.; Jull, A. J. T.; Priyadarshi, A.; Thiemens, M. H.; Biddulph, D.; Russell, J. L.

    2014-12-01

    129I is a long-lived radionuclide that has been used as a useful environmental tracer. At present, the global 129I in surface water is about 1-2 orders of magnitude higher than pre-1990 levels. The anthropogenic 129I signal produced from industrial nuclear fuel reprocessing plants is known to be the primary source of 129I in marine surface waters of the Atlantic, and elevated 129I values are found globally. The Great East Japan Earthquake and the induced tsunami in 2011 triggered the nuclear shutdowns, failures, and partial meltdowns of Fukushima Daiichi Nuclear Power Plant. The accident resulted in a series of radioactive material releases into the environment and spread out through atmospheric and ocean circulation. We will present 129I results of water samples collected weekly near Scripps Institution of Oceanography, San Diego, CA for the past 3 years. We also have several measurements collected a year apart from Kaohsiung, Taiwan, which represent west margin of Pacific Ocean, and from Alaska, Washington, and Oregon. By establishing 129I time series, we can observe the spread of 129I in the surface waters of the Pacific Ocean that resulted from the accidental releases.

  18. A Methodology to Consider Combined Electrical Infrastructure and Real-Time Power-Flow Impact Costs in Planning Large-Scale Renewable Energy Farms

    SciTech Connect

    Sukumar, Sreenivas R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shankar, Mallikarjun [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Olama, Mohammed M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Nutaro, James J. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Malinchik, Sergey [Lockheed Martin Corp., Oak Ridge, TN (United States); Ives, Barry [Lockheed Martin Corp., Oak Ridge, TN (United States)

    2010-01-01

    The U.S federal government's strategic vision encouraging renewable energy production has motivated several new energy generation projects. Among them are large-scale renewable energy farm building efforts, where one considers the renewable resource potential along with land, equipment and installation costs. The goal in the planning phase of these efforts is to maximize the return on investment as well as the utilization of resources. The challenge, however, that is specific to integrating new generation is the need to include the operational (both construction as well as run-time) cost of introducing power to the existing infrastructure. In this paper, we propose a methodology to compute and include energy transmission line proximity (a construction time cost) and thermal-overload, and voltage out-of-range (an infrastructure cost) factors. Thus we consider both distance to infrastructure and the power-flow impacts when we plan to tap into an existing infrastructure. We present results for a simulation study over regions in Texas, Kansas, Colorado, New Mexico and Oklahoma and discuss the observations.

  19. Learning about Renewable Energy.

    ERIC Educational Resources Information Center

    Conservation and Renewable Energy Inquiry and Referral Service (DOE), Silver Spring, MD.

    This booklet provides an introduction to renewable energy, discussing: (1) the production of electricity from sunlight; (2) wind power; (3) hydroelectric power; (4) geothermal energy; and (5) biomass. Also provided are nine questions to answer (based on the readings), four additional questions to answer (which require additional information), and…

  20. Cool energy. Renewal solutions to environmental problems

    SciTech Connect

    Brower, M.

    1992-01-01

    This book begins with a chapter describing some of the economic and environmental consequences of America's fossil-fuel-based economy. It makes the case that, despite some progress in reducing pollution from fossil fuels, no lasting cure for the deteriorating environment - in particular, the looming threat of global warming - is possible without developing alternative fuel sources. That renewable energy can provide the bulk of the new supplies needed is the theme of the second chapter, which discusses the relative advantages of these resources compared to fossil fuels and nuclear power and evaluates their long-term potential. The bulk of the book considers five broad categories of renewable energy sources: solar, wind, biomass (plant matter), rivers and oceans, and geothermal. For each of these sources, the book describes its current application, discusses its costs, analyzes new technologies under development, and assesses its positive and negative environmental impacts. This book shows the vital role renewable sources can and should play in America's energy future. It cites studies indicating that, with the right policies, renewable energy could provide as much as half of America's energy within 40 years, and an even larger fraction down the road. Such a rapid shift from existing energy sources would be dramatic but not unprecedented. In 1920, coal supplied 70% of US energy, but within 40 years its share had dropped to just 20% as oil and natural gas use increased. Sooner or later, oil and natural gas will also fade in importance. The real question is when. This book makes the case that the time to move decisively toward a renewable energy economy has arrived.

  1. Pu isotopes in the western North Pacific Ocean before the accident at Fukushima Dai-ichi Nuclear Power Station

    NASA Astrophysics Data System (ADS)

    Yamada, M.; Zheng, J.; Aono, T.

    2011-12-01

    Anthropogenic radionuclides such as Pu-239 (half-life: 24100 yr), Pu-240 (half-life: 6560 yr) and Pu-241 (half-life: 14.325 yr) mainly have been released into the environment as the result of atmospheric nuclear weapons testing. In the North Pacific Ocean, two distinct sources of Pu isotopes can be identified; i.e., the global stratospheric fallout and close-in tropospheric fallout from nuclear weapons testing at the Pacific Proving Grounds in the Marshall Islands. The atom ratio of Pu-240/Pu-239 is a powerful fingerprint to identify the sources of Pu in the ocean. The Pu-240/Pu-239 atom ratios in seawater and marine sediment samples collected in the western North Pacific before the accident at Fukushima Dai-ichi Nuclear Power Station will provide useful background data for understanding the process controlling Pu transport and for distinguishing future Pu sources. The atom ratios of Pu-240/Pu-239 in water columns from the Yamato and Tsushima Basins in the Japan Sea were significantly higher than the mean global fallout ratio of 0.18; however, there were no temporal variation of atom ratios during the period from 1984 to 1993 in the Japan Sea. The total Pu-239+240 inventories in the whole water columns were approximately doubled during the period from 1984 to 1993 in the two basins. The atom ratio of Pu-240/Pu-239 in surface water from Sagami Bay, western North Pacific Ocean, was 0.224 and showed no notable variation from the surface to the bottom with the mean atom ratio being 0.234. The atom ratios for the Pacific coast, near the Rokkasho nuclear fuel reprocessing plant, were approximately the same as the 0.224 ratio obtained from Sagami Bay, western North Pacific margin. The atom ratios in the surficial sediments from Sagami Bay ranged from 0.229 to 0.247. The mean atom ratio in the sediment columns in the East China Sea ranged from 0.248 for the Changjiang estuary to 0.268 for the shelf edge. The observed atom ratios were significantly higher than the mean global fallout ratio of 0.180, proving the existence of close-in fallout Pu originating from the Pacific Proving Grounds. The North Equatorial Current and Kuroshio Current were proposed as pathways for transporting Pacific Proving Grounds-origin Pu to the western North Pacific Ocean.

  2. 76 FR 68225 - License Renewal Application for Purdue University

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-03

    ...50-182, NRC-2011-0186] License Renewal Application for Purdue University AGENCY...Regulatory Commission. ACTION: License renewal application; request for comment and...is considering an application for the renewal and thermal power uprate of...

  3. 10 CFR Appendix B to Subpart A of... - Environmental Effect of Renewing the Operating License of a Nuclear Power Plant

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ...cooling tower makeup at nuclear power plants using Ranney...supplies large quantities of reactor cooling water. However...intrusion) 1 SMALL. Nuclear power plants do not contribute...Light-Water-Cooled Nuclear Power Reactor. If fuel...

  4. 10 CFR Appendix B to Subpart A of... - Environmental Effect of Renewing the Operating License of a Nuclear Power Plant

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ...cooling tower makeup at nuclear power plants using Ranney...supplies large quantities of reactor cooling water. However...intrusion) 1 SMALL. Nuclear power plants do not contribute...Light-Water-Cooled Nuclear Power Reactor. If fuel...

  5. Quantifying avoided emissions from renewable generation

    E-print Network

    Gomez, Gabriel R. (Gabriel Rodriguez)

    2009-01-01

    Quantifying the reduced emissions due to renewable power integration and providing increasingly accurate emissions analysis has become more important for policy makers in the age of renewable portfolio standards (RPS) and ...

  6. Renewal Processes

    NSDL National Science Digital Library

    Siegrist, Kyle

    Created by Kyle Siegrist of the University of Alabama-Huntsville, this is an online, interactive lesson on the renewal processes. The resource provides examples, exercises, and applets which include renewal equations and renewal limit theorems. This is the fifteenth of seventeen different statistics lessons presented by Siegrist. This site is broken up much like an online textbook. Each lesson is separable, but together, they form a cohesive look at different aspects of statistics.

  7. Future projection of radiocesium flux to the ocean from the largest river impacted by Fukushima Daiichi Nuclear Power Plant

    NASA Astrophysics Data System (ADS)

    Adhiraga Pratama, Mochamad; Yoneda, Minoru; Shimada, Yoko; Matsui, Yasuto; Yamashiki, Yosuke

    2015-02-01

    Following the initial fall out from Fukushima Dai-ichi Nuclear Power Plant (FDNPP), a significant amount of radiocesium has been discharged from Abukuma River into the Pacific Ocean. This study attempted to numerically simulate the flux of radiocesium into Abukuma River by developing the multiple compartment model which incorporate the transport process of the radionuclide from the ground surface of the catchment area into the river, a process called wash off. The results from the model show that the sub-basins with a high percentage of forest area release the radionuclides at lower rate compared to the other sub-basins. In addition the results show that the model could predict the seasonal pattern of the observed data. Despite the overestimation observed between the modeled data and the observed data, the values of R2 obtained from 137Cs and 134Cs of 0.98 and 0.97 respectively demonstrate the accuracy of the model. Prediction of the discharge from the basin area for 100 years after the accident shows that, the flux of radiocesium into the Pacific Ocean is still relatively high with an order of magnitude of 109 bq.month-1 while the total accumulation of the discharge is 111 TBq for 137Cs and 44 TBq for 134Cs.

  8. Future projection of radiocesium flux to the ocean from the largest river impacted by Fukushima Daiichi Nuclear Power Plant.

    PubMed

    Adhiraga Pratama, Mochamad; Yoneda, Minoru; Shimada, Yoko; Matsui, Yasuto; Yamashiki, Yosuke

    2015-01-01

    Following the initial fall out from Fukushima Dai-ichi Nuclear Power Plant (FDNPP), a significant amount of radiocesium has been discharged from Abukuma River into the Pacific Ocean. This study attempted to numerically simulate the flux of radiocesium into Abukuma River by developing the multiple compartment model which incorporate the transport process of the radionuclide from the ground surface of the catchment area into the river, a process called wash off. The results from the model show that the sub-basins with a high percentage of forest area release the radionuclides at lower rate compared to the other sub-basins. In addition the results show that the model could predict the seasonal pattern of the observed data. Despite the overestimation observed between the modeled data and the observed data, the values of R(2) obtained from (137)Cs and (134)Cs of 0.98 and 0.97 respectively demonstrate the accuracy of the model. Prediction of the discharge from the basin area for 100 years after the accident shows that, the flux of radiocesium into the Pacific Ocean is still relatively high with an order of magnitude of 10(9)?bq.month(-1) while the total accumulation of the discharge is 111?TBq for (137)Cs and 44?TBq for (134)Cs. PMID:25673214

  9. Future projection of radiocesium flux to the ocean from the largest river impacted by Fukushima Daiichi Nuclear Power Plant

    PubMed Central

    Adhiraga Pratama, Mochamad; Yoneda, Minoru; Shimada, Yoko; Matsui, Yasuto; Yamashiki, Yosuke

    2015-01-01

    Following the initial fall out from Fukushima Dai-ichi Nuclear Power Plant (FDNPP), a significant amount of radiocesium has been discharged from Abukuma River into the Pacific Ocean. This study attempted to numerically simulate the flux of radiocesium into Abukuma River by developing the multiple compartment model which incorporate the transport process of the radionuclide from the ground surface of the catchment area into the river, a process called wash off. The results from the model show that the sub-basins with a high percentage of forest area release the radionuclides at lower rate compared to the other sub-basins. In addition the results show that the model could predict the seasonal pattern of the observed data. Despite the overestimation observed between the modeled data and the observed data, the values of R2 obtained from 137Cs and 134Cs of 0.98 and 0.97 respectively demonstrate the accuracy of the model. Prediction of the discharge from the basin area for 100 years after the accident shows that, the flux of radiocesium into the Pacific Ocean is still relatively high with an order of magnitude of 109?bq.month?1 while the total accumulation of the discharge is 111?TBq for 137Cs and 44?TBq for 134Cs. PMID:25673214

  10. Renewable Energy Supply for Power Dominated, Energy Intense Production Processes - A Systematic Conversion Approach for the Anodizing Process

    NASA Astrophysics Data System (ADS)

    >D Stollenwerk, T Kuvarakul, I Kuperjans,

    2013-06-01

    European countries are highly dependent on energy imports. To lower this import dependency effectively, renewable energies will take a major role in future energy supply systems. To assist the national and inter-European efforts, extensive changes towards a renewable energy supply, especially on the company level, will be unavoidable. To conduct this conversion in the most effective way, the methodology developed in this paper can support the planning procedure. It is applied to the energy intense anodizing production process, where the electrical demand is the governing factor for the energy system layout. The differences between the classical system layout based on the current energy procurement and an approach with a detailed load-time-curve analysis, using process decomposition besides thermodynamic optimization, are discussed. The technical effects on the resulting energy systems are shown besides the resulting energy supply costs which will be determined by hourly discrete simulation.

  11. Power spectrum and fractal dimension of laser backscattering from the ocean.

    PubMed

    Churnside, James H; Wilson, James J

    2006-11-01

    We flew an airborne lidar perpendicular to the coastline along straight-line transects that varied in length between 230 and 280 km. The sample spacing was approximately 3 m, so we sampled almost five decades of spatial scales. Except for the return from right at the surface, the power spectra of backscattered power had a power-law dependence on spatial frequency, with a slope of approximately 1.49. This corresponds to a fractal dimension of 1.76. This implies that the distribution is not as patchy as that of a purely turbulent process. PMID:17047710

  12. OTEC ocean engineering technology development

    Microsoft Academic Search

    J. Vadus

    1982-01-01

    Ocean Thermal Energy Conversion (OTEC) is the principal ocean energy source under development by the U. S. Department of Energy (DOE) because of its potential, state of development, and availability and access of the resource to the U. S. The major features of OTEC are that the source is renewable with minimum impact on the environment, and the constant availability

  13. [Institutional Renewal].

    ERIC Educational Resources Information Center

    Brown, Peggy, Ed.

    1983-01-01

    The theme of this journal issue is "Institutional Renewal." Projects designed to address the issues of the 1980s at 18 colleges are described, and 15 definitions of institutional renewal are presented. Participating colleges were provided expert advice through the Association of American College's (AAC) Project Lodestar (renamed Consultation and…

  14. Renewable Energy

    NSDL National Science Digital Library

    2014-09-18

    In this lesson, students are introduced to the five types of renewable energy resources by engaging in various activities to help them understand the transformation of energy (solar, water and wind) into electricity. Students explore the different roles engineers who work in renewable energy fields have in creating a sustainable environment – an environment that contributes to greater health, happiness and safety.

  15. Wave Power Demonstration Project at Reedsport, Oregon

    SciTech Connect

    Mekhiche, Mike [Principal Investigator] [Principal Investigator; Downie, Bruce [Project Manager] [Project Manager

    2013-10-21

    Ocean wave power can be a significant source of large?scale, renewable energy for the US electrical grid. The Electrical Power Research Institute (EPRI) conservatively estimated that 20% of all US electricity could be generated by wave energy. Ocean Power Technologies, Inc. (OPT), with funding from private sources and the US Navy, developed the PowerBuoy? to generate renewable energy from the readily available power in ocean waves. OPT's PowerBuoy converts the energy in ocean waves to electricity using the rise and fall of waves to move the buoy up and down (mechanical stroking) which drives an electric generator. This electricity is then conditioned and transmitted ashore as high?voltage power via underwater cable. OPT's wave power generation system includes sophisticated techniques to automatically tune the system for efficient conversion of random wave energy into low cost green electricity, for disconnecting the system in large waves for hardware safety and protection, and for automatically restoring operation when wave conditions normalize. As the first utility scale wave power project in the US, the Wave Power Demonstration Project at Reedsport, OR, will consist of 10 PowerBuoys located 2.5 miles off the coast. This U.S. Department of Energy Grant funding along with funding from PNGC Power, an Oregon?based electric power cooperative, was utilized for the design completion, fabrication, assembly and factory testing of the first PowerBuoy for the Reedsport project. At this time, the design and fabrication of this first PowerBuoy and factory testing of the power take?off subsystem are complete; additionally the power take?off subsystem has been successfully integrated into the spar.

  16. Highly robust thin-film composite pressure retarded osmosis (PRO) hollow fiber membranes with high power densities for renewable salinity-gradient energy generation.

    PubMed

    Han, Gang; Wang, Peng; Chung, Tai-Shung

    2013-07-16

    The practical application of pressure retarded osmosis (PRO) technology for renewable blue energy (i.e., osmotic power generation) from salinity gradient is being hindered by the absence of effective membranes. Compared to flat-sheet membranes, membranes with a hollow fiber configuration are of great interest due to their high packing density and spacer-free module fabrication. However, the development of PRO hollow fiber membranes is still in its infancy. This study aims to open up new perspectives and design strategies to molecularly construct highly robust thin film composite (TFC) PRO hollow fiber membranes with high power densities. The newly developed TFC PRO membranes consist of a selective polyamide skin formed on the lumen side of well-constructed Matrimid hollow fiber supports via interfacial polymerization. For the first time, laboratory PRO power generation tests demonstrate that the newly developed PRO hollow fiber membranes can withstand trans-membrane pressures up to 16 bar and exhibit a peak power density as high as 14 W/m(2) using seawater brine (1.0 M NaCl) as the draw solution and deionized water as the feed. We believe that the developed TFC PRO hollow fiber membranes have great potential for osmotic power harvesting. PMID:23772898

  17. Update '05: ocean wave and tidal power generation projects in San Francisco

    Microsoft Academic Search

    P. O'Donnell

    2005-01-01

    In summary, San Francisco's interest in the HydroVenturi approach is due to the value proposition of no moving parts underwater, compared to the underwater turbines of a LaRance river-type saltwater entranement, of a Blue Energy or Verdant Power vertical or horizontal axis-type propeller installation. A technology with no moving parts underwater makes tidal power attractive to San Francisco's well-established environmental

  18. Renewable Energy and Emissions Reductions

    Microsoft Academic Search

    Patrick J. Kelly

    2005-01-01

    The influence of environmental legislation in many states has become common partners in creating a unique environment for renewable energy to step up to the plate. This environment offers opportunities that lead down many environmental paths and opens up economic conditions for marketplace advancement of renewable energy sources. Since 2000, more than 1100 MW of wind farm (WF) electrical power

  19. Architectures and circuits for low-voltage energy conversion and applications in renewable energy and power management

    E-print Network

    Pilawa-Podgurski, Robert C. N

    2012-01-01

    In this thesis we seek to develop smaller, less expensive, and more efficient power electronics. We also investigate emerging applications where the proper implementation of these new types of power converters can have a ...

  20. Foundation for the adequacy of the licensing bases. A supplement to the statement of considerations for the rule on nuclear power plant license renewal (10 CFR Part 54): Final report

    SciTech Connect

    Not Available

    1991-12-01

    The objective of this report is to describe the regulatory processes that assures that any plant-specific licensing bases will provide reasonable assurance that the operation of nuclear power plants will not be inimical to the public health and safety to the end of the renewal period. It is on the adequacy of this process that the Commission has determined that a formal renewal licensing review against the full range of current safety requirements would not add significantly to safety and is not needed to assure that continued operation throughout the renewal term is not inimical to the public health and safety or common defense and security. This document illustrates in general terms how the regulatory process has evolved in major safety issue areas. It also provides examples illustrating why it is unnecessary to re-review an operating plant`s basis, except for age-related degradation unique to license renewal, at the time of license renewal. The report is a supplement to the Statement of Considerations for the Nuclear Regulatory Commission`s rule (10 CFR Part 54) that established the criteria and standards governing nuclear power plant license renewal.

  1. Conceptual design of ocean thermal energy conversion (OTEC) power plants in the Philippines

    SciTech Connect

    Haruo Uehara; Dilao, C.O.; Tsutomu Nakaoka (Saga Univ. (Japan))

    1988-01-01

    Extensive temperature readings were obtained to determine suitable OTEC power plant sites in the Philippines. An analysis of temperature profiles reveals that surface seawater is in the range of 25 to 29{degree}C throughout the year while seawater at 500 to 700 m depth remains at a low temperature of 8 to 4{degree}C, respectively. In this article, 14 suitable sites within the Philippine seas are suggested. Conceptual designs for a 5-MW onland-type and a 25-MW floating-type OTEC power plant are proposed. Optimum conditions are determined and plant specifications are computed. Cost estimates show that a floating-type 25-MW OTEC power plant can generate electricity at a busbar power cost of 5.33 to 7.57 cents/kW {times} h while an onshore type 5-MW plant can generate electricity at a busbar cost of 14.71 to 18.09 cents/kW {times} h.

  2. Changing controls on oceanic radiocarbon: New insights on shallow-to-deep ocean exchange and anthropogenic

    E-print Network

    Keeling, Ralph

    Changing controls on oceanic radiocarbon: New insights on shallow-to-deep ocean exchange a powerful tracer to investigate ocean physical and chemical processes. While the oceanic uptake of bomb demonstrate that changes in oceanic 14 C are now primarily controlled by shallow-to-deep ocean exchange, i

  3. Plasma gasification of organic containing substances as a promising way of development of alternative renewable power engineering

    NASA Astrophysics Data System (ADS)

    Rutberg, Ph G.; Bratsev, A. N.; Kuznetsov, V. A.; Kumkova, I. I.; Popov, V. E.; Surov, A. V.

    2012-12-01

    The paper deals with perspectives of large-scale implementation of the plasma gasification process of solid organic-containing substances as a source of renewable energy. First of all, such substances as wood waste, agriculture waste, solid household waste are considered. Thanks to the process of the plasma high-temperature gasification the energy of their combustion can be completely converted into the energy of the synthesis gas combustion, which use as a fuel for the combined cycle allows electricity generation with efficiency of ~60 %. Thus, if the psychogenesis production wastes are considered, this technology enables avoiding additional emission of carbon dioxide into biosphere as for production of biomass from biosphere it is extracted the same amount of carbon dioxide as is emitted at its combustion. The report represents the realized and developing designs of plasma gasification, their advantages and deficiencies.

  4. Challenges in Integrating Renewable Technologies

    E-print Network

    power industry and educating the next generation of power engineers. More information about PSERC can into an Electric Power System The U.S. is not well positioned to handle high penetrations of renewable generation PV, solar thermal, and wave. Breakthroughs are also needed in large-scale energy storage technologies

  5. Renewable Energy Annual 1999: Issues and Trends

    NSDL National Science Digital Library

    Renewable energy provided only three percent of US utility power purchases overall in 1995, and the average purchase price of electricity from non-utilities using renewable energy was 31 percent higher than the average retail price, according the US EIA's latest Renewable Energy Annual 1999: Issues and Trends. The EIA presents additional data on renewable electricity purchases, transmission pricing issues for electricity, wood energy, and wind energy, among other topics, in this 90-page release.

  6. 76 FR 4244 - Regulation and Enforcement; Renewable Energy Alternate Uses of Existing Facilities on the Outer...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-25

    ...OF THE INTERIOR Bureau of Ocean Energy Management 30 CFR Part 285 [Docket...1010-AD71 Regulation and Enforcement; Renewable Energy Alternate Uses of Existing Facilities...final rule to amend BOEMRE's renewable energy regulatory provisions that...

  7. A methodology to consider combined electrical infrastructure and real-time power-flow impact costs in planning large-scale renewable energy farms

    Microsoft Academic Search

    Sreenivas R. Sukumar; Mallikarjun Shankar; Mohammed M Olama; James J Nutaro; Sergey Malinchik; Barry Ives

    2010-01-01

    The U.S federal government's strategic vision encouraging renewable energy production has motivated several new energy generation projects. Among them are large-scale renewable energy farm building efforts, where one considers the renewable resource potential along with land, equipment, and installation costs. The goal in the planning phase of these efforts is to maximize the return on investment and resource utilization. The

  8. Gains from an integrated market for tradable renewable energy credits

    Microsoft Academic Search

    Pallab Mozumder; Achla Marathe

    2004-01-01

    Decoupling the environmental attributes of renewable energy (RE) generation from the physical unit of energy is an innovative mechanism for marketing green or renewable power. The introduction of ‘Tradable Renewable Energy Credits’ (TRECs) allows the green power attributes of energy to be sold or traded separately from the physical unit of energy. Since the green power certificate system removes potential

  9. Renewal Credit Matrix CERTIFICATE RENEWAL PLAN

    E-print Network

    Kunkle, Tom

    Renewal Credit Matrix CERTIFICATE RENEWAL PLAN PROFESSIONAL DEVELOPMENT OPTIONS FOR SOUTH CAROLINA are restricted to Options 1 and 2 in the matrix. CERTIFICATE RENEWAL OPTION ELIGIBILITY CRITERIA RENEWAL CREDITS to 120 renewal credits may be earned via this option during the five-year validity period

  10. Abstract--Since the renewable energy is popularly applied in power industry, especially the smart grid is fast developing all

    E-print Network

    Chen, Zhe

    the smart grid is fast developing all over the world during these years, the reliable connection between, but also a smart grid. As the major target of power grid development mandated by the European Council for 2020 and 2050, Smart Grid, it is defined as an electricity network that can intelligently integrate

  11. 76 FR 23848 - Carolina Power And Light Company; Notice of Withdrawal of Application for Amendment to Renewed...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-04-28

    ...allowed the use of the thermal-hydraulic computer analysis code S- RELAP5 for the...Power Plant, Unit 1 safety analyses. Topical Report, EMF-2103...application of the S- RELAP5 thermal-hydraulic analysis computer code to FSAR...

  12. Renewing Schools.

    ERIC Educational Resources Information Center

    McChesney, Jim

    1997-01-01

    This publication reviews works on educational reform that represent attempts to do more than merely respond in knee-jerk fashion to political pressure for reform. Bruce Joyce and Emily Calhoun, in "Learning Experiences in School Renewal: An Exploration of Five Successful Programs" (Eugene, Oregon: ERIC Clearinghouse on Educational Management,…

  13. Renewable Energies

    Microsoft Academic Search

    Ulrich Schindewolf; Karl Wilhelm Boeddeker

    2010-01-01

    At prevailing economic practice the alarming “two degrees-limit” of global warming will be reached long before the known fossil fuel reserves are gone. A future alternative energy economy relying on renewable energies will be more diverse yet more expensive than traditional combustion the new figure of merit is the cost of CO2 avoidance. This communication surveys the relevant alternatives –

  14. EVALUATION OF THE EMERGENCY EVACUATION PLAN FOR THE OYSTER CREEK NUCLEAR POWER PLANT

    Microsoft Academic Search

    Lindsey Conlow

    Oyster Creek Nuclear Power Plant in Lacey Township, Ocean County, New Jersey is the oldest commercial nuclear generating facility operating in the nation, and is also situated in one of the fastest growing counties in the nation's most densely populated state. In July of 2005, the owners of Oyster Creek submitted an application for license renewal, which will allow it

  15. Electricity from Renewables: Status, Prospects, and Impediments

    E-print Network

    Kammen, Daniel M.

    will examine the technical potential for electric power generation with alternative sources such as wind, solar photovoltaic, geothermal, solar thermal, hydroelectric, and other renewable so, Carnegie Mellon University ·James J. Markowsky***, American Electric Power (Ret.) ·Richard A. Meserve

  16. Renewable energy for sustainable agriculture

    Microsoft Academic Search

    A. Chel; G. Kaushik

    2011-01-01

    Agriculture is the sole provider of human food. Most farm machines are driven by fossil fuels, which contribute to greenhouse\\u000a gas emissions and, in turn, accelerate climate change. Such environmental damage can be mitigated by the promotion of renewable\\u000a resources such as solar, wind, biomass, tidal, geo-thermal, small-scale hydro, biofuels and wave-generated power. These renewable\\u000a resources have a huge potential

  17. Dynamic response of oceanic hydrate deposits to ocean temperature change

    Microsoft Academic Search

    Matthew T. Reagan; George J. Moridis

    2008-01-01

    Vast quantities of methane are trapped in oceanic hydrate deposits. Because methane is a powerful greenhouse gas (about 26 times more effective than CO2), there is considerable concern that a rise in the temperature of the oceans will induce dissociation of oceanic hydrate accumulations, potentially releasing large amounts of carbon into the atmosphere. Such a release could have dramatic climatic

  18. Renewable Electricity Futures Study

    E-print Network

    Renewable Electricity Futures Study Exploration of High-Penetration Renewable Electricity Futures PDF Volume 4 PDF #12;Renewable Electricity Futures Study Edited By Hand, M.M. National Renewable Citations Renewable Electricity Futures Study (Entire Report) National Renewable Energy Laboratory. (2012

  19. Advanced Mechanisms for the Promotion of Renewable Energy: Models for the Future Evolution of the German Renewable Energy Act

    Microsoft Academic Search

    Ole Langniß; Jochen Diekmann; Ulrike Lehr

    2008-01-01

    The German Renewable Energy Act (EEG) has been very successful in promoting the deployment of wind power plants and other renewable energy power generating technologies in Germany. The increasing share of EEG-power in the generation portfolio, increasing amounts of fluctuating power generation, and the growing European integration of power markets governed by competition calls for a re-design of the EEG.

  20. Integrating renewable energy sources into European grids

    Microsoft Academic Search

    T. J. Hammons

    2008-01-01

    This paper examines the integration of new sources of renewable energy into the power systems in Europe—challenges and possible solutions, application of wind power prediction tools for power system operation, new tasks that create new solutions for communication in distribution systems, wind power in Greece, integration of dispersed generation in Denmark, wind power in The Netherlands, EdF and distributed energy

  1. Heterogeneous catalysis and the challenges of powering the planet, securing chemicals for civilised life, and clean efficient utilization of renewable feedstocks.

    PubMed

    Thomas, John Meurig

    2014-07-01

    This article reviews, first, the prospects, practices and principles of generating solar fuels. It does so with an analysis of recent progress in the light-driven emission of H2 (and other fuels) as well as O2 from water. To place this challenge in perspective, some current practices entailing the use of well-proven solid catalysts developed for fossil-based feedstocks, are described. The massive differences between proven methods of generating fuel and chemicals from non-renewable and from solar radiation are emphasized with the aid of numerous quantitative examples. Whilst it is acknowledged that a key action in reducing the liberation of greenhouse gases (GHG) is to tackle the challenge of decreasing their evolution in power generation and in the production of steel, aluminium and other bulk commodities (metals, alloys, concrete and ceramics), nevertheless much can be done to diminish the emission of CO2 (and to use it as feedstock) through the agency of new, designed solid catalysts and microalgae. Solar-thermal converters are also attractive alternatives, even though they are more likely to be used centrally rather than in small modular units like 'artificial leaves,' some of which are promising for the purposes of generating energy (and perhaps fuel) in a delocalized, modular manner. PMID:24988917

  2. PSO-Based Multi-Criteria Optimum Design of A Grid-Connected Hybrid Power System With Multiple Renewable Sources of Energy

    Microsoft Academic Search

    Lingfeng Wang; Chanan Singh

    2007-01-01

    With the stricter environmental regulation and diminishing fossil-fuel reserve, various renewable sources of energy are being exploited. These alternative sources of energy are usually environmentally friendly and emit no pollutants. However, the capital investments for those renewable sources of energy are normally high and there are also maintenance cost differences to be considered. Furthermore, due to the variability of these

  3. A Review of Barriers to and Opportunities for the Integration of Renewable Energy in the Southeast

    SciTech Connect

    McConnell, Ben W [ORNL; Hadley, Stanton W [ORNL; Xu, Yan [ORNL

    2011-08-01

    The objectives of this study were to prepare a summary report that examines the opportunities for and obstacles to the integration of renewable energy resources in the Southeast between now and the year 2030. The report, which is based on a review of existing literature regarding renewable resources in the Southeast, includes the following renewable energy resources: wind, solar, hydro, geothermal, biomass, and tidal. The evaluation was conducted by the Oak Ridge National Laboratory for the Energy Foundation and is a subjective review with limited detailed analysis. However, the report offers a best estimate of the magnitude, time frame, and cost of deployment of renewable resources in the Southeast based upon the literature reviewed and reasonable engineering and economic estimates. For the purposes of this report, the Southeast is defined as the states of Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia, and West Virginia. In addition, some aspects of the report (wind and geothermal) also consider the extended Southeast, which includes Maryland, Missouri, Oklahoma, and Texas. A description of the existing base of renewable electricity installations in the region is given for each technology considered. Where available, the possible barriers and other considerations regarding renewable energy resources are listed in terms of availability, investment and maintenance costs, reliability, installation requirements, policies, and energy market. As stated above, the report is a comprehensive review of renewable energy resources in the southeastern region of United States based on a literature study that included information obtained from the Southern Bio-Power wiki, sources from the Energy Foundation, sources available to ORNL, and sources found during the review. The report consists of an executive summary, this introductory chapter describing report objectives, a chapter on analysis methods and the status of renewable resources, chapters devoted to each identified renewable resource, and a brief summary chapter. Chapter 2 on analysis methods and status summarizes the benefits of integrating renewable energy resources in the Southeast. The utilization of the existing fuels, both the fossil fuels and the renewable energy resources, is evaluated. The financial rewards of renewable resources are listed, which includes the amount of fuel imported from outside the Southeast to find the net benefit of local renewable generation, and both the typical and new green job opportunities that arise from renewable generation in the Southeast. With the load growth in the Southeast, the growth of transmission and fossil fuel generation may not meet the growing demands for energy. The load growth is estimated, and the benefits of renewable resources for solving local growing energy demands are evaluated. Chapters 3-7 discuss the key renewable energy resources in the Southeast. Six resources available in this region that are discussed are (1) wind, including both onshore and offshore; (2) solar, including passive, photovoltaic, and concentrating; (3) biomass energy, including switchgrass, biomass co-firing, wood, woody biomass, wood industry by-products (harvesting residues, mill waste, etc.), agricultural byproducts, landfill gas to energy and anaerobic digester gas; (4) hydro; and (5) geothermal. Because of limited development, ocean wave and tidal were not considered to be available in significant quantity before 2030 and are not presented in the final analysis. Estimates on the location of potential megawatt generation from these renewable resources in the Southeast are made. Each chapter will describe the existing base of the renewable electricity installations in the region now and, when available, the base of the existing manufacturing capacity in the region for renewable energy resources hardware and software. The possible barriers and considerations for renewable energy resources are presented.

  4. Surprisingly low near-inertial energy flux leaving the ocean's mixed layer

    NASA Astrophysics Data System (ADS)

    Rimac, A.; von Storch, J. S.; Eden, C.

    2014-12-01

    We present a renewed estimate of the fraction of the total Near-Inertial (NI) energy flux leaving the ocean's Mixed Layer (ML) based on simulations performed by a global high-resolution (1/10°) ocean general circulation model. The quantification of this fraction is important for understanding the global general circulation and the energetics of the ocean. At the same time NI waves that are excited at the ocean surface by winds are a major power source for deep ocean mixing. NI waves that escape the turbulent ML can propagate freely into the stratified deep ocean. When they break in the oceanic interior, they can contribute to deep mixing. The previous studies on the subject indicate that a large portion of wind-power input to NI motions is dissipated in a surface layer of fixed depth and in specific regions in the ocean. In comparison, we study in detail the spatial and temporal variability of the ocean's ML and gives an estimate on a global scale, which allows for the first time for a global quantification of the transfer of NI energy into the deep layers of the ocean. We address the following questions: What is the magnitude of the wind-power input to NI motions simulated with our high-resolution ocean model? How large is the fraction of the total wind-induced NI energy flux that leaves the ML? What are the main factors that control this fraction? The wind-power input to surface NI motions amounts to 0.35 TW, of which a fraction of about 11% i.e., 0.04 TW leaves the ML and propagates into the stratified interior of the ocean. Locally, this fraction tends to decrease with increasing depth of the ML and with increasing strength of wind stress variability, indicating the strong control of the turbulent dissipation inside the ML on the fraction. The low power input by NI waves points towards the importance of other energy sources (like the dissipation of mesoscale eddy energy) for interior mixing to sustain the global general circulation in the ocean.

  5. New Renewable 1 Emerging Renewables

    E-print Network

    to General Fund per Budget Act of 2009 9 (35,000,000)$ Loan to Dept. of Fish and Game per SB X8 34 10 (10,000,000)$ Appropriations Appropriation for PACE Reserve program per SB 77 (2010) 11 (50,000,000)$ RENEWABLE ENERGY PROGRAM available due to the Energy Commission's cancellation of two project awards, REN-98-017 & 018. The New

  6. Renewable energy: Renewing the environment

    SciTech Connect

    Noun, R.J. [National Renewable Energy Lab., Golden, CO (United States)

    1996-12-31

    During the past 20 years, the United States has enacted some of the world`s most comprehensive legislation to protect and preserve its environmental heritage. These regulations have spawned a $115-billion-per-year industry for {open_quotes}green{close_quotes} products and services, with more than 35,000 companies providing jobs for American workers. On the other hand, environmental regulations have placed heavy cost burdens on many U.S. businesses as they struggle to remain competitive in both domestic and foreign markets. How, then, can one reconcile the growing need for environmental protection with the desire for a stronger, healthier economy? Even as Congress debates the value of existing environmental legislation, new threats are appearing on the horizon. For example, extensive storm damage from Hurricane Andrew and other natural disasters has prompted members of the $650-billion insurance industry to begin studying the effects that global warming may have on future property damage claims. More and more people are realizing that the most efficient and economical way to control pollution is to avoid creating it in the first place. And that`s where renewable energy comes in. Technologies based on nonpolluting renewable energy sources such as sunlight and wind can help preserve our environmental heritage without a tangled web of regulations to burden industry. Renewable energy technologies can also help the United States become a world leader in a potential $400-billion-a-year global market for environmentally friendly products.

  7. RENEWABLES 2005 GLOBAL STATUS REPORT Notes and References Companion Document

    E-print Network

    Kammen, Daniel M.

    ....................................................................................................................................16 N11. Renewable Energy Cost Comparisons.................................................................................................17 Table N11a. Power Generation Costs, 2002 and Projections for 2010 Table N11b. Costs of Renewable ............................................................................................18 N13. Private Financing and Venture Capital

  8. Funding for Renewable Energy

    NSDL National Science Digital Library

    Schultz, Jennifer J.

    On May 25, 1999, the House and Senate appropriation committees cut funding for renewable energy and energy efficiency programs, while at the same time increasing funding for nuclear and fossil fuel programs. This move runs counter to the opinions of most Americans, according to a recent survey commissioned by the Sustainable Energy Coalition. According to the survey, Americans believe renewable energy and energy efficiency funding should be prioritized, while nuclear power and fossil fuel spending should be reduced. Following the budget changes, President Clinton issued an executive order for federal agencies to cut energy consumption by 35 percent of 1985 levels by 2010, as the federal government is the largest consumer of energy. Clinton also urged Congress to reevaluate and approve the 2000 budget funding requests for research to help American businesses use energy-saving technology. This week's In The News examines the recent federal decisions regarding energy use and technology; the eight resources listed provide background information on this important issue.

  9. Developing Government Renewable Energy Projects

    SciTech Connect

    Kurt S. Myers; Thomas L. Baldwin; Jason W. Bush; Jake P. Gentle

    2012-07-01

    The US Army Corps of Engineers has retained Idaho National Laboratory (INL) to conduct a study of past INL experiences and complete a report that identifies the processes that are needed for the development of renewable energy projects on government properties. The INL has always maintained expertise in power systems and applied engineering and INL’s renewable energy experiences date back to the 1980’s when our engineers began performing US Air Force wind energy feasibility studies and development projects. Over the last 20+ years of working with Department of Defense and other government agencies to study, design, and build government renewable projects, INL has experienced the do’s and don’ts for being successful with a project. These compiled guidelines for government renewable energy projects could include wind, hydro, geothermal, solar, biomass, or a variety of hybrid systems; however, for the purpose of narrowing the focus of this report, wind projects are the main topic discussed throughout this report. It is our thought that a lot of what is discussed could be applied, possibly with some modifications, to other areas of renewable energy. It is also important to note that individual projects (regardless the type) vary to some degree depending on location, size, and need but in general these concepts and directions can be carried over to the majority of government renewable energy projects. This report focuses on the initial development that needs to occur for any project to be a successful government renewable energy project.

  10. Ocean Wave Energy Conversion - A Survey

    Microsoft Academic Search

    A. Muetze; J. G. Vining

    2006-01-01

    Ocean energy conversion has been of interest for many years. Recent developments such as concern over global warming have renewed interest in the topic. This paper gives a systematic and comprehensive overview of wave energy converters (WEC) as opposed to ocean current energy converters. The point absorber and oscillating water column WEC devices are addressed with regards to commercial prospects,

  11. Ocean Mammals

    NSDL National Science Digital Library

    Miss Teschner

    2011-04-06

    What are the different types of mammals that live in the ocean? First, you will need to use the Ocean Mammals Table 1. This website is here for you to learn about ocean mammals. Mammals 2. This website will help you learn about the different mammals that live in the ocean. Ocean Mammals 3. Here is some information about how oil spills effect animal skin in the ocean. Oil Spills 4. This link ...

  12. The Role of the Green Party in Germany's Renewable Energy Policy

    E-print Network

    New Hampshire, University of

    The Role of the Green Party in Germany's Renewable Energy Policy A Healthy Serving of Greens power, increasing reliance on renewable energy Renewable Energy Sources Act of 2000 and 2004 -provided, increasing renewable profitability #12;Green Party Development vs. Renewable Energy Policy Advancement Green

  13. Solution nebulization into a low-power argon microwave-induced plasma for atomic emission spectrometry: study of synthetic ocean water

    SciTech Connect

    Ng, K.C.; Shen, W.

    1986-08-01

    A MAK nebulizer is used to introduce liquid aerosols containing Cr, Mn, In, V, Pb, Sr, or Zr into a low-power (105-115 W), low argon flow (537 mL/min) microwave-induced plasma for atomic emission spectrometry. Detection limits (3sigma) in 3% nitric acid water samples are at the parts-per-billion level (62, 18, 18, 91, 139, 13, and 3945, respectively). These values compared favorably to those reported for a 150-W Ar-MIP and the conventional inductively coupled plasma for most of the elements. In a 10% synthetic ocean water matrix, signal enhancement is obtained for Cr, Mn, In, Pb, and Sr, and signal depression is found for V and Zr. Detection limits (parts per billion) in the 10% ocean water are 9, 3, 6, 1780, 54, 2, and not measurable, for Cr, Mn, In, V, Pb, Sr, and Zr, respectively. The signal precision is typically 2% RSD for 1 ppm solutions. Linear responses (>3 orders of magnitude) are associated with all of the tested analyte concentrations of water or synthetic ocean matrices.

  14. NOAA OTEC CWP (National Oceanic and Atmospherc Adminstration Ocean Thermal Energy Conversion Cold Water Pipe) At-Sea Test. Volume 2. Plots of the power spectra for selected channels (Part 1)

    SciTech Connect

    Not Available

    1983-11-15

    The report is a preliminary analysis of the data collected during the Ocean Thermal Energy Conversion (OTEC) Cold Water Pipe At-Sea Test. The report includes the following items: (1) Sensor factors and offsets and the data processing algorithms used to convert the recorded sensor measurements from electrical units to engineering units. The mean, standard deviation, and root-mean-square (RMS) are tabulated for each channel converted. (2) Plots of the power spectra estimates obtained from a Fast Fourier Transform (FFT) analysis of selected channels. (3) Plots of selected sensor measurements as a function of time; and (4) Plots of bending strain along the pipe using statistics and values presented in the other volumes. The plots displaying bending strain along the abscissa axis and pipe depth along the ordinate axis. The mean, RMS, maximum, and minimum values at each depth are shown in each plot.

  15. NOAA OTEC CWP (National Oceanic and Atmospheric Adminstration Ocean Thermal Energy Conversion Cold Water Pipe) At-Sea Test. Volume 2. Plots of the power spectra for selected channels (Part 4)

    SciTech Connect

    Not Available

    1983-11-15

    The report is a preliminary analysis of the data collected during the Ocean Thermal Energy Conversion (OTEC) Cold Water Pipe At-Sea Test. The report includes the following items: (1) Sensor factors and offsets and the data processing algorithms used to convert the recorded sensor measurements from electrical units to engineering units. The mean, standard deviation, and root-mean-square (RMS) are tabulated for each channel converted. (2) Plots of the power spectra estimates obtained from a Fast Fourier Transform (FFT) analysis of selected channels. (3) Plots of selected sensor measurements as a function of time; and (4) Plots of bending strain along the pipe using statistics and values presented in the other volumes. The plots displaying bending strain along the abscissa axis and pipe depth along the ordinate axis. The mean, RMS, maximum, and minimum values at each depth are shown in each plot.

  16. Markets and Support Schemes for Renewable

    E-print Network

    in the price of energy today #12;Monetised externalities for wind power and conventional power plants 0 2 4 6 8 technologies - EU targets for renewable deployment - Especially wind power experiences a rapid development #12 10 Coal Natural gas Wind power c/kWh Max Min #12;Production costs plus externalities 0 2 4 6 8 10 12

  17. Ocean Fertilization and Other Climate Change Mitigation Strategies: An Overview

    SciTech Connect

    Huesemann, Michael H.

    2008-07-29

    In order to evaluate ocean fertilization in the larger context of other proposed strategies for reducing the threat of the global warming, a wide range of different climate change mitigation approaches are compared in terms of their long-term potential, stage of development, relative costs and potential risks, as well as public acceptance. This broad comparative analysis is carried out for the following climate change mitigation strategies: supply-side and end-use efficiency improvements, terrestrial and geological carbon sequestration, CO2 ocean disposal and iron fertilization, nuclear power, and renewable energy generation from biomass, passive solar, solar thermal, photovoltaics, hydroelectric and wind. In addition, because of the inherent problems of conducting an objective comparative cost-benefit analysis, two non-technological solutions to global warming are also discussed: curbing population growth and transitioning to a steady-state economy.

  18. A review on the energy production, consumption, and prospect of renewable energy in China

    Microsoft Academic Search

    J. Chang; Dennis Y. C. Leung; C. Z. Wu; Z. H. Yuan

    2003-01-01

    China is the second largest energy consumer in the world. This paper reviews the production and consumption of traditional and renewable energy in China over the past three decades. It also presents an overview on the research and development of renewable energy, such as solar, biomass, geothermal, ocean and wind energy in China. Study indicated that the usage of renewable

  19. Ocean Talk

    NSDL National Science Digital Library

    Ocean Talk provides a glimpse of oceanography and an awareness of the importance of the sea to our environment and our own well-being. There are scientific explanations of ocean bottom features, the properties of seawater, underwater sound, sea ice, ocean currents, tides, waves, and tsunamis. A history of marine exploration and descriptions of the Earth's oceans are also provided.

  20. Numerical study of ocean wave effect on offshore wind farm

    NASA Astrophysics Data System (ADS)

    Shen, Lian; Yang, Di; Meneveau, Charles

    2013-11-01

    Wind power at sea has become increasingly important in renewable energy study. For energy harvesting, winds over oceans have many advantages over winds on land, for example, larger and open surface area, faster wind speed, and more wind resource close to high population regions. On the other hand, the presence of ocean waves introduces complexities to wind turbines. There is a critical need to study the dynamical interactions among marine atmospheric boundary layer, ocean wave field, and floating turbines. In this research, we study offshore wind farm by performing large-eddy simulations for winds coupled with potential-flow-theory based simulations for broadband irregular waves, with the wind turbines represented by an actuator disk model. Our results show that windseas at different development stages result in different sea-surface roughness and have an appreciable effect on wind profile and the energy extraction rate of the turbines. If swells are present, swell-to-wind momentum and energy transfer further changes the wind field to introduce oscillations in as well as modify the mean of the wind power. Wind power at sea has become increasingly important in renewable energy study. For energy harvesting, winds over oceans have many advantages over winds on land, for example, larger and open surface area, faster wind speed, and more wind resource close to high population regions. On the other hand, the presence of ocean waves introduces complexities to wind turbines. There is a critical need to study the dynamical interactions among marine atmospheric boundary layer, ocean wave field, and floating turbines. In this research, we study offshore wind farm by performing large-eddy simulations for winds coupled with potential-flow-theory based simulations for broadband irregular waves, with the wind turbines represented by an actuator disk model. Our results show that windseas at different development stages result in different sea-surface roughness and have an appreciable effect on wind profile and the energy extraction rate of the turbines. If swells are present, swell-to-wind momentum and energy transfer further changes the wind field to introduce oscillations in as well as modify the mean of the wind power. DY and LS acknowledge the support of NSF-CBET-1341062. CM acknowledges the support of NSF-AGS-1045189 and NSF-OISE-1243482.

  1. Utility restructuring: Boon or bane for renewables?

    SciTech Connect

    Hochanadel, J.R.; Aitken, D.W.

    1996-11-01

    This article describes the challenges and opportunities for the renewables industry as electric utility restructuring begins. Topics include the following: the changes in the electric power industry and what lead to restructuring; the uncertain future and the issues involved (demand side management, energy efficiency programs, low income assistance, research in the public interest, commercialization of renewables); position of the ASES on utility restructuring.

  2. STAFF REPORT RENEWABLE POWER IN

    E-print Network

    Grau Mike Gravely Lynette Green Karen Griffin Eli Harland Mark Hesters Candace Hill Mike Kane Linda Amanda Stennick Brian Stevens Shaelyn Strattan Sarah Taheri Angela Tanghetti Marylou Taylor Chris Tooker

  3. COMMISSION GUIDEBOOK RENEWABLES PORTFOLIO

    E-print Network

    , certificates, certification, conduit hydroelectric, digester gas, electrolysis, eligibility, fuel cell, renewable energy credits, Renewables Portfolio Standard, repowered, retail sales, small hydroelectric, Self

  4. Renewable Energy: A Viable Choice

    Microsoft Academic Search

    Antonia V. Herzog; Timothy E. Lipman; Jennifer L. Edwards; Daniel M. Kammen

    2001-01-01

    Renewable energy systems—notably solar, wind, and biomass—are poised to play a major role in the energy economy and in improving the environmental quality of the United States. California's energy crisis focused attention on and raised fundamental questions about regional and national energy strategies. Prior to the crisis in California, there had been too little attention given to appropriate power plant

  5. Renewable energy sources for desalination

    Microsoft Academic Search

    Eftihia Tzen; Richard Morris

    2003-01-01

    Renewable energy sources (RES) coupled to desalination offers a promising prospect for covering the fundamental needs of power and water in remote regions, where connection to the public electrical grid is either not cost effective or not feasible, and where the water scarcity is severe. Stand-alone systems for electricity supply in isolated locations are now proven technologies. Correct matching of

  6. Ocean engineering for ocean thermal energy conversion

    SciTech Connect

    Not Available

    1982-01-01

    The panel on OTEC Ocean Engineering of the National Research Council was formed to assess the state of ocean engineering knowledge, technology, and practice necessary to design, construct, and operate OTEC plants. The panel concentrated its study on platforms, moorings, and foundations; the cold water pipe; and submarine cables for electric power transmission. The panel did not address the design and engineering of power plants; institutional and management issues or the commercial feasibility of OTEC; or its environmental impacts. The panel focused instead on determining the state of development of several of the ocean engineering technologies needed to design and construct a 40-MWe OTEC plant; it also examined the technical feasibility and advantages of larger and smaller plants.

  7. Customer choice and renewable energy

    SciTech Connect

    Schaefer, D.

    1996-12-31

    Opinions on political and social factors affecting the U.S. market for wind power are presented in this paper. The position of and activities taken by U.S. Congressman Dan Schaefer as Chairman of the House Energy and Power Subcommittee are outlined. Background information used as input to subcommittee hearings is summarized. The formation and activities of the House Renewable Energy Caucus are very briefly described.

  8. Blue ocean strategy.

    PubMed

    Kim, W Chan; Mauborgne, Renée

    2004-10-01

    Despite a long-term decline in the circus industry, Cirque du Soleil profitably increased revenue 22-fold over the last ten years by reinventing the circus. Rather than competing within the confines of the existing industry or trying to steal customers from rivals, Cirque developed uncontested market space that made the competition irrelevant. Cirque created what the authors call a blue ocean, a previously unknown market space. In blue oceans, demand is created rather than fought over. There is ample opportunity for growth that is both profitable and rapid. In red oceans--that is, in all the industries already existing--companies compete by grabbing for a greater share of limited demand. As the market space gets more crowded, prospects for profits and growth decline. Products turn into commodities, and increasing competition turns the water bloody. There are two ways to create blue oceans. One is to launch completely new industries, as eBay did with online auctions. But it's much more common for a blue ocean to be created from within a red ocean when a company expands the boundaries of an existing industry. In studying more than 150 blue ocean creations in over 30 industries, the authors observed that the traditional units of strategic analysis--company and industry--are of limited use in explaining how and why blue oceans are created. The most appropriate unit of analysis is the strategic move, the set of managerial actions and decisions involved in making a major market-creating business offering. Creating blue oceans builds brands. So powerful is blue ocean strategy, in fact, that a blue ocean strategic move can create brand equity that lasts for decades. PMID:15559577

  9. Using Renewable Energy to Pump Water 

    E-print Network

    Mecke, Michael; Enciso, Juan

    2007-06-08

    Solar and wind power can be economical and environmentally friendly ways to pump water for homes, irrigation and/or livestock water wells. This publication explains how these pumps work, the advantages and disadvantages of using renewable energy...

  10. Renewable Energy RFPs: Solicitation Response and Wind ContractPrices

    SciTech Connect

    Wiser, Ryan; Bolinger, Mark

    2005-04-18

    As input into renewable energy policy discussions in Illinois, we have been asked to provide information on the results of recent, competitive solicitations for renewable energy, with a focus on wind power. In particular, this memorandum includes two pieces of information: (1) Publicly available data on the strength of response to recent renewable energy solicitations; and (2) Wind power purchase costs as revealed through actual power purchase agreements with electric utilities.

  11. Optimal Routing and Scheduling in Multihop Wireless Renewable Energy Networks

    E-print Network

    Sarkar, Saswati

    Optimal Routing and Scheduling in Multihop Wireless Renewable Energy Networks MHR. Khouzani-constrained wireless ad-hoc networks where nodes are powered by renewable energy sources. We take into account the fact that renewable energy harvesting processes are unpredictable and stochastic in nature ­ typically depending

  12. The role of Remedial Action Schemes in renewable generation integrations

    Microsoft Academic Search

    Jun Wen; P. Arons; W.-H. E. Liu

    2010-01-01

    Enabling renewable generation integration to the power grids has become an essential element of the smart grid roadmap. As electric utilities prepare to meet the Renewable Portfolio Standard goals, advanced sensing and communication technologies can be used to facilitate renewable integration. The Remedial Action Scheme (RAS) is becoming an attractive mitigation approach to maintain transmission system reliability and security, while

  13. Implicit Renewal Theorem for Trees with General Weights

    E-print Network

    Jelenkovic, Predrag

    Implicit Renewal Theorem for Trees with General Weights Predrag R. Jelenkovi´c and Mariana Olvera an Implicit Renewal Theorem that enables the characterization of the power tail behavior of the solutions R and phrases: Implicit renewal theory; weighted branching processes; multiplicative cas- cades; smoothing

  14. Indian Renewable Energy Status Report: Background Report for DIREC 2010

    Microsoft Academic Search

    D. S. Arora; S. Busche; S. Cowlin; T. Engelmeier; J. Jaritz; A. Milbrandt; S. Wang

    2010-01-01

    India has great potential to accelerate use of endowed renewable resources in powering its growing economy with a secure and affordable energy supply. The Government of India recognizes that development of local, renewable resources will be critical to ensure that India is able to meet both economic and environmental objectives and has supported the development of renewable energy through several

  15. Advanced mechanisms for the promotion of renewable energy—Models for the future evolution of the German Renewable Energy Act

    Microsoft Academic Search

    Ole Langniß; Jochen Diekmann; Ulrike Lehr

    2009-01-01

    The German Renewable Energy Act (EEG) has been very successful in promoting the deployment of renewable electricity technologies in Germany. The increasing share of EEG power in the generation portfolio, increasing amounts of fluctuating power generation, and the growing European integration of power markets governed by competition calls for a re-design of the EEG. In particular, a more efficient system

  16. Updated 11062013 RENEWAL PROCEDURES

    E-print Network

    Updated 11062013 RENEWAL PROCEDURES (The Renew Certification button will not appear until 90 days Edit Options, CLICK "Renew Certifications" (or "Certify With Current Profile" if your certification has expired). Now you are in the renewal application. Go from page to page and update the information

  17. Initial flux of sediment-associated radiocesium to the ocean from the largest river impacted by Fukushima Daiichi Nuclear Power Plant

    NASA Astrophysics Data System (ADS)

    Yamashiki, Yosuke; Onda, Yuichi; Smith, Hugh G.; Blake, William H.; Wakahara, Taeko; Igarashi, Yasuhito; Matsuura, Yuki; Yoshimura, Kazuya

    2014-01-01

    This study aimed to quantify the flux of radiocesium in the Abukuma Basin (5,172 km2), the largest river system affected by fallout from the Fukushima Daiichi Nuclear Power Plant (FDNPP) event. In the period from 10 August 2011 to 11 May 2012 an estimated 84 to 92% of the total radiocesium transported in the basin's fluvial system was carried in particulate form. During this monitoring period Typhoon Roke (September 2011) was observed to induce a significant and temporally punctuated redistribution of radiocesium. The storm-mobilised radiocesium was an estimated 6.18 Terabecquerels corresponding to 61.4% of the total load delivered to the coastal zone during the observation period. The total flux of radiocesium into the Pacific Ocean estimated at the outlet station (basin area 5,172 km2) was 5.34 TBq for 137Cs, and 4.74 TBq for 134Cs, corresponding to 1.13% of the total estimated radiocesium fallout over the basin catchment (890 TBq). This was equivalent to the estimated amount of direct leakage from FDNPP to the ocean during June 2011 to September 2012 of 17 TBq and the Level 3 Scale Leakage on 21August 2013 (24 TBq).

  18. “Energy, People, Environment”. Development of an integrated renewable energy and energy storage system, an uninterruptible power supply for people and for better environment

    Microsoft Academic Search

    A. Zahedi

    1994-01-01

    Energy continues to be an essential key to worldwide development approaching higher standard of life. The main source of energy in the past and present in industrial nations has been fossil energy and in the next century these countries will need to depend more on coal, nuclear and renewable energy. Generation of energy from fossil fuels is always associated with

  19. Ocean Portal

    NSDL National Science Digital Library

    IOC/IODE Marine Data Training Team

    Ocean Portal is a high-level directory of Ocean Data and Information related web sites. The object of the site is to help scientists and other ocean experts in locating data and information. Sites are listed in a directory with headings that include information, data, scientific topics, agencies and societies, among others.

  20. Evaluation of tools for renewable energy policy analysis: The renewable energy penetration model

    Microsoft Academic Search

    Engle

    1994-01-01

    The Energy Policy Act of 1992 establishes a program to support development of renewable energy technologies including a production incentive to public power utilities. Because there is a wide range of possible policy actions that could be taken to increase electric market share for renewables, modeling tools are needed to help make informed decisions regarding future policy. Previous energy modeling

  1. Ocean Terracing

    E-print Network

    Richard Cathcart; Alexander Bolonkin

    2007-01-09

    Artworks can improve humanity ability to apply macro-engineering principles which skirt or correct oceanographic problems impairing the economic usefulness of coastal land, the overhead airshed, and seawater temperature and salinity stability. A new form of Art, Ocean Art, is here proposed which centers on deliberate terracing of appropriate regions of our world ocean; a proposed example of macro-engineered useful Ocean Art is the technically possible 21-st Century terracing of the Mediterranean Sea. Ocean Art is applicable worldwide to places that might be practically improved by its judicious employment. Such Ocean Art may constitute an entirely unique category of solutions to coastal disaster prevention planning.

  2. Renewable energy in Indian country

    SciTech Connect

    NONE

    1995-12-31

    On June 25--27, 1995, at Mesa Verde National Park in southwestern Colorado, the Center for Resource Management (CRM), organized and sponsored a conference in conjunction with the Navajo Nation, EPA, and Bechtel Group, Inc., to deal with issues associated with developing renewable energy resources on Indian lands. Due to the remoteness of many reservation homes and the cost of traditional power line extensions, a large percentage of the Indian population is today without electricity or other energy services. In addition, while they continue to develop energy resources for export, seeing only minimal gain in their own economies, Indian people are also subject to the health and environmental consequences associated with proximity to traditional energy resource development. Renewable energy technologies, on the other hand, are often ideally suited to decentralized, low-density demand. These technologies--especially solar and wind power--have no adverse health impacts associated with generation, are relatively low cost, and can be used in applications as small as a single home, meeting power needs right at a site. Their minimal impact on the environment make them particularly compatible with American Indian philosophies and lifestyles. Unfortunately, the match between renewable energy and Indian tribes has been hampered by the lack of a comprehensive, coordinated effort to identify renewable energy resources located on Indian lands, to develop practical links between Indian people`s needs and energy producers, and to provide the necessary training for tribal leaders and members to plan, implement, and maintain renewable energy systems. Summaries of the presentations are presented.

  3. The comparative analysis of systems of long-term electric power storage intended for sources of back-up and emergency power supply, as well as for power plants using renewable energy sources

    NASA Astrophysics Data System (ADS)

    Popel', O. S.; Tarasenko, A. B.

    2012-11-01

    This paper describes variants of using electric power accumulators of various types-lithium-ion and lead-acid storage batteries, flow-through redox storage batteries, and the hydrogen cycle-for the niche of back-up and emergency power supply sources designed for long periods of operation (8-72 h). The schematic diagrams are proposed, and, on the basis of data submitted by equipment manufacturers and designers, the comparative technical and economic analysis of these systems has been performed.

  4. Renew-a-Bead

    NSDL National Science Digital Library

    2014-09-18

    A quantitative illustration of how non-renewable resources are depleted while renewable resources continue to provide energy. Students remove beads (units of energy) from a bag (representing a country). A certain number of beads are removed from the bag each "year." At some point, no non-renewable beads remain. Student groups have different ratios of renewable and non-renewable energy beads. A comparison of the remaining beads and time when they ran out of energy shows the value of utilizing a greater proportion of renewable resources as a sustainable energy resources.

  5. Renewable energy annual 1996

    SciTech Connect

    NONE

    1997-03-01

    This report presents summary data on renewable energy consumption, the status of each of the primary renewable technologies, a profile of each of the associated industries, an analysis of topical issues related to renewable energy, and information on renewable energy projects worldwide. It is the second in a series of annual reports on renewable energy. The renewable energy resources included in the report are biomass (wood and ethanol); municipal solid waste, including waste-to-energy and landfill gas; geothermal; wind; and solar energy, including solar thermal and photovoltaic. The report also includes various appendices and a glossary.

  6. Alaska's renewable energy potential.

    SciTech Connect

    Not Available

    2009-02-01

    This paper delivers a brief survey of renewable energy technologies applicable to Alaska's climate, latitude, geography, and geology. We first identify Alaska's natural renewable energy resources and which renewable energy technologies would be most productive. e survey the current state of renewable energy technologies and research efforts within the U.S. and, where appropriate, internationally. We also present information on the current state of Alaska's renewable energy assets, incentives, and commercial enterprises. Finally, we escribe places where research efforts at Sandia National Laboratories could assist the state of Alaska with its renewable energy technology investment efforts.

  7. Renewable Energy: Energy Security and Sustainability

    NASA Astrophysics Data System (ADS)

    Turner, John

    2002-03-01

    Renewable energy offers the possibility of providing a complete, sustainable energy infrastructure without anthropogenic emission of CO2. Large-scale implementation of renewable technologies would eliminate the need to develop and implement sequestration systems, by reducing the use of, and ultimately eliminating fossil based energy production. Renewable energy also offers energy security because indigenous resources are sufficient. The major renewable energy systems include phovoltaics (solar cells), solar thermal (electric and thermal), wind, biomass (plants and trees), hydroelectric, ocean, and geothermal. Given the intermittent nature of solar energy, only those energy systems that are coupled to an energy storage technology will be viable. Among the energy storage technologies are hydrogen, batteries, flywheels, superconductivity, ultracapacitors, pumped hydro, molten salts (for thermal storage), and compressed gas. One of the most versatile energy storage systems and the best energy carrier for transportation is hydrogen. This talk will review some of the basic renewable energy systems, present possible pathways for the implementation of hydrogen into the energy infrastructure and offer research areas that need to be addressed to increase the viability of these renewable energy technologies.

  8. Renewable Electricity Futures for the United States

    SciTech Connect

    Mai, Trieu; Hand, Maureen; Baldwin, Sam F.; Wiser , Ryan; Brinkman, G.; Denholm, Paul; Arent, Doug; Porro, Gian; Sandor, Debra; Hostick, Donna J.; Milligan, Michael; DeMeo, Ed; Bazilian, Morgan

    2014-04-14

    This paper highlights the key results from the Renewable Electricity (RE) Futures Study. It is a detailed consideration of renewable electricity in the United States. The paper focuses on technical issues related to the operability of the U. S. electricity grid and provides initial answers to important questions about the integration of high penetrations of renewable electricity technologies from a national perspective. The results indicate that the future U. S. electricity system that is largely powered by renewable sources is possible and the further work is warranted to investigate this clean generation pathway. The central conclusion of the analysis is that renewable electricity generation from technologies that are commercially available today, in combination with a more flexible electric system, is more than adequate to supply 80% of the total U. S. electricity generation in 2050 while meeting electricity demand on an hourly basis in every region of the United States.

  9. Nuclear plant license renewal; Structural issues

    SciTech Connect

    Gazda, P.A.; Bhatt, P.C. (Sargent and Lundy, Chicago, IL (United States))

    1991-01-01

    During the next 10 years, nuclear plant license renewal is expected to become a significant issue. Recent Electric Power Research Institute (EPRI) studies have shown license renewal to be technically and economically feasible. Filing an application for license renewal with the Nuclear Regulatory Commission (NRC) entails verifying that the systems, structures, and components essential for safety will continue to perform their safety functions throughout the license renewal period. This paper discusses the current proposed requirements for this verification and the current industry knowledge regarding age-related degradation of structures. Elements of a license renewal program incorporating NRC requirements and industry knowledge including a schedule are presented. Degradation mechanisms for structural components, their significance to nuclear plant structures, and industry-suggested age-related degradation management options are also reviewed.

  10. Renewable Energy Certificate Program

    SciTech Connect

    Gwendolyn S. Andersen

    2012-07-17

    This project was primarily to develop and implement a curriculum which will train undergraduate and graduate students at the University seeking a degree as well as training for enrollees in a special certification program to prepare individuals to be employed in a broad range of occupations in the field of renewable energy and energy conservation. Curriculum development was by teams of Saint Francis University Faculty in the Business Administration and Science Departments and industry experts. Students seeking undergraduate and graduate degrees are able to enroll in courses offered within these departments which will combine theory and hands-on training in the various elements of wind power development. For example, the business department curriculum areas include economic modeling, finance, contracting, etc. The science areas include meteorology, energy conversion and projection, species identification, habitat protection, field data collection and analysis, etc.

  11. Financing renewable energy: Obstacles and solutions

    SciTech Connect

    Brown, M.H.

    1994-06-01

    The majority of renewable energy technology projects now being developed use long term project financing to raise capital. The financial community scrutinizes renewables more closely than some conventionally fueled electric generation facilities because it perceives renewables as risky and expensive. Renewables pay for this perceived risk through higher interest charges and other more restrictive loan covenants. Risks that are not eliminated in the power sales agreement or through some other means generally result in higher project costs during financing. In part, this situation is a product of the private placement market and project finance process in which renewable energy facilities must function. The project finance process attracts banks and institutional lenders as well as equity investors (often pension funds) who do not want to place their capital at great risk. Energy project finance exists on the basis of a secure revenue stream and a thorough understanding of electric generation technology. Renewables, like all energy projects, operating in uncertain regulatory environments are often difficult to finance. In the uncertain regulatory environment in which renewables now operate, investors and lenders are nervous about challenges to existing contracts between independent power producers and utilities. Challenges to existing contracts could foretell challenges to contracts in the future. Investors and lenders now look to state regulatory environments as an indicator of project risk. Renewable energy technology evolves quickly. Yet, often the information about technological evolution is not available to those who invest in the energy projects. Or, those who have invested in new renewable energy technology in the past have lost money and are nervous about doing so in the future - even though technology may have improved. Inadequate or unfavorable information is a barrier to the development of renewables.

  12. Renewable Electricity Futures (Presentation)

    SciTech Connect

    Hand, M. M.

    2012-09-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  13. Renewable Electricity Futures (Presentation)

    SciTech Connect

    Mai, T.

    2012-11-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  14. Renewable Electricity Futures (Presentation)

    SciTech Connect

    Mai, T.

    2013-04-01

    This presentation summarizes findings of NREL's Renewable Electricity Futures study, published in June 2012. RE Futures investigated the challenges and impacts of achieving very high renewable electricity generation levels in the contiguous United States by 2050.

  15. Ocean engineering and the environment (Conference record)

    SciTech Connect

    Not Available

    1985-01-01

    This book present the papers given at a conference on offshore operations. Topics considered include ocean engineering and the environment, marine information systems, oil spill cleanup, economic potential, the design and analysis of offshore structures, water current measurements, ocean thermal energy conversion, ocean thermal power plants, corrosion, materials testing, biofouling, and aquaculture.

  16. Eastern Renewable Generation Integration Study Solar Dataset (Presentation)

    SciTech Connect

    Hummon, M.

    2014-04-01

    The National Renewable Energy Laboratory produced solar power production data for the Eastern Renewable Generation Integration Study (ERGIS) including "real time" 5-minute interval data, "four hour ahead forecast" 60-minute interval data, and "day-ahead forecast" 60-minute interval data for the year 2006. This presentation provides a brief overview of the three solar power datasets.

  17. Ocean thermal energy-The hydrogen fuel cell connection

    Microsoft Academic Search

    Roney

    1980-01-01

    Ocean thermal energy is one of the greatest resources of convertible energy in the world. The location of this tropical ocean resouce, which can be harvested by Ocean Thermal Energy Conversion (OTEC) plants to produce electric power, does not match geographically with the major electric power consumption centers. Using the electric power to produce hydrogen or a hydrogen carrier (such

  18. Ocean Planet

    NSDL National Science Digital Library

    _Ocean Planet_ is a Smithsonian Institution Traveling Exhibition that now has a companion on-line exhibition. It covers varied topics associated with the ocean, such as the science of the ocean, the animals, people, and communities who use the ocean, and pollution problems currently endangering ocean resources. The exhibit features all of the text and a good portion of the images from the traveling exhibit. The curator of this exhibit has put together six special interest tours including Biodiversity, Women and the Sea, and Pollution. Users can also build their own special tour from a list of key words. The current list contains only four words, but is expected to grow in the future. Visitors can also consult a comprehensive list of educational materials and ocean resources.

  19. Global Renewable Energy Projections

    Microsoft Academic Search

    A. Demirbas

    2009-01-01

    Projections are important tools for long-term planning and policy settings. Renewable energy sources that use indigenous resources have the potential to provide energy services with zero or almost zero emissions of both air pollutants and greenhouse gases. Currently, renewable energy sources supply 14% of the total world energy demand. Renewable energy is a promising alternative solution because it is clean

  20. Renewable Electricity Futures Study

    E-print Network

    Meo, E. Renewable Energy Consulting Services, Inc. Reilly, J.M. Massachusetts Institute of Technology Mai, T. National Renewable Energy Laboratory Arent, D. Joint Institute for Strategic Energy Analysis Sandor,1 Ryan Wiser,2 Thomas Schneider1 1 National Renewable Energy Laboratory 2 Lawrence Berkeley

  1. The Ocean: Our Future

    NASA Astrophysics Data System (ADS)

    Independent World Commission On The Oceans; Soares, Mario

    1998-09-01

    The Ocean, Our Future is the official report of the Independent World Commission on the Oceans, chaired by Mário Soares, former President of Portugal. Its aim is to summarize the very real problems affecting the ocean and its future management, and to provide imaginative solutions to these various and interlocking problems. The oceans have traditionally been taken for granted as a source of wealth, opportunity and abundance. Our growing understanding of the oceans has fundamentally changed this perception. We now know that in some areas, abundance is giving way to real scarcity, resulting in severe conflicts. Territorial disputes that threaten peace and security, disruptions to global climate, overfishing, habitat destruction, species extinction, indiscriminate trawling, pollution, the dumping of hazardous and toxic wastes, piracy, terrorism, illegal trafficking and the destruction of coastal communities are among the problems that today form an integral part of the unfolding drama of the oceans. Based on the deliberations, experience and input of more than 100 specialists from around the world, this timely volume provides a powerful overview of the state of our water world.

  2. Hybrid renewable energy system development in Thailand

    Microsoft Academic Search

    P. Kruangpradit; W. Tayati

    1996-01-01

    This paper describes PEA's programme on design, implementation and evaluation of pilot hybrid renewable energy systems for electrification of remote villages in Thailand. It is proposed that three hybrid energy systems namely, PV\\/Microhydro\\/Diesel\\/Battery, PV\\/Diesel\\/Battery and PV batteryless grid connected power stations be installed to demonstrate and evaluate advanced renewable technologies. Methodologies used in systems design, descriptions and operations of the

  3. Renewable energy resources in energy management systems

    Microsoft Academic Search

    E. Goutard

    2010-01-01

    In response to the ever increasing amount of Renewable Energy Resources production integrated in Power Systems, Energy Management Systems (EMS) used for decades in control centers to manage power flows need to adapt. This paper aims at providing detailed understanding of impacts on “standard” EMS functions of these new sources of productions. This paper will first highlight the characteristics of

  4. Renewable energy annual 1995

    SciTech Connect

    NONE

    1995-12-01

    The Renewable Energy Annual 1995 is the first in an expected series of annual reports the Energy Information Administration (EIA) intends to publish to provide a comprehensive assessment of renewable energy. This report presents the following information on the history, status, and prospects of renewable energy data: estimates of renewable resources; characterizations of renewable energy technologies; descriptions of industry infrastructures for individual technologies; evaluations of current market status; and assessments of near-term prospects for market growth. An international section is included, as well as two feature articles that discuss issues of importance for renewable energy as a whole. The report also contains a number of technical appendices and a glossary. The renewable energy sources included are biomass (wood), municipal solid waste, biomass-derived liquid fuels, geothermal, wind, and solar and photovoltaic.

  5. Ocean Optics

    NSDL National Science Digital Library

    NASA

    This NASA website is part of Visible Earth, and contains a searchable directory of images of the Earth. This section contains images pertaining to ocean optics, such as ocean color, turbidity and reflectance. Each image is available in a variety of resolutions and sizes, with a brief description, credit, date, and the photographing satellite.

  6. Ocean Temperatures

    NSDL National Science Digital Library

    NBC Learn

    2010-10-07

    Bermuda may be known as a luxurious vacation destination, but it also houses one of the world's leading institutes for ocean studies, called BIOS. Dr. Tony Knap explains how climate change is causing ocean temperatures to rise, and what impacts it may bring around the world. "Changing Planet" is produced in partnership with the National Science Foundation.

  7. Ocean Water: Density

    NSDL National Science Digital Library

    Judy Robinson

    In regions throughout the world oceans, water moves vertically to or down away from the surface and is set in motion by atmospheric winds, salinity and temperature differences. Cold water is much denser than warm and seawater has a higher density that fresh water and will sink below the less dense layer of water. Furthermore, vertical mixing powered by atmospheric winds can affect stratification and the rate of growth of the surface boundary layer. This lab activity is a simulation of the processes that create density stratification in ocean environments. It exposes students to concepts of temperature, salinity and wind and the role each plays in the development of water stratification.

  8. Ocean Temperatures

    NSDL National Science Digital Library

    In this lesson students discover that measurements from space can tell us the temperature of the ocean, both on an annual average and as measured on any given date. For the annual average the highest ocean temperatures are near the equator, and drop as one moves either northward or southward from the equator. Students will graph each temperature value as a function of latitude and write a linear equation that best fits the points on their graph. They can choose as data points any point at that approximate latitude because the temperature is not uniform for a certain latitude - some areas are hotter and some are cooler. They can also look at today's ocean temperatures via the link provided to see how the seasons affect whether the northern or southern oceans are warmer. Students will take ocean temperature data from a map and plot temperature versus angle from the equator.

  9. Role of Satellites for Renewable Energy Generation Technologies in Urban Regional and Urban Settings

    Microsoft Academic Search

    Adeel Ghayur

    2006-01-01

    This paper discusses the renewable energy sector and the role satellites can play in its development and deployment. Satellite based sensors can provide useful information regarding the renewable energy sources such as solar, wind, biodiesel and hydropower. This paper also discusses the concept of distributed power generation and how the renewable energy power can be used to implement the concept.

  10. Financing investments in renewable energy: The role of policy design and restructuring

    Microsoft Academic Search

    Ryan Wiser; Steven Pickle

    1997-01-01

    The costs of electric power projects utilizing renewable energy technologies are highly sensitive to financing terms. Consequently, as the electricity industry is restructured and new renewables policies are created, it is important for policymakers to consider the impacts of renewables policy design on project financing. This report describes the power plant financing process and provides insights to policymakers on the

  11. Ocean energy technologies: The state of the art: Final report

    Microsoft Academic Search

    A. D. Carmichael; E. E. Adams; M. A. Glucksman

    1986-01-01

    A state-of-the-art study of ocean energy technologies has been conducted to evaluate their potential use for the generation of electrical power. The more developed technologies are tidal energy, ocean thermal energy conversion (OTEC), and wave energy. In addition there has been a demonstration of a small ocean current turbine, and proposals have been made for salinity gradient devices and ocean

  12. The Green Power Network: Green Power government information clearinghouse

    NSDL National Science Digital Library

    This site contains Green Power information from the Energy Efficiency and Renewable Energy Clearinghouse of the U.S. Department of Energy. The Green Power Network exists to provide "news and information on green power providers." The site's information is searchable by state and shows different markets for green power (utility green pricing, green power marketing, and renewable energy certificates).

  13. Comprehensive Ocean Drilling

    E-print Network

    Comprehensive Ocean Drilling Bibliography containing citations related to the Deep Sea Drilling Project, Ocean Drilling Program, Integrated Ocean Drilling Program, and International Ocean Discovery Program Last updated: May 2014 #12;Comprehensive Bibliography Comprehensive Ocean Drilling Bibliography

  14. Public comments on the proposed 10 CFR Part 51 rule for renewal of nuclear power plant operating licenses and supporting documents: Review of concerns and NRC staff response. Volume 1

    SciTech Connect

    NONE

    1996-05-01

    This report documents the Nuclear Regulatory Commission (NRC) staff review of public comments provided in response to the NRC`s proposed amendments to 10 Code of Federal Regulations (CFR) Part 51, which establish new requirements for the environmental review of applications for the renewal of operating licenses of nuclear power plants. The public comments include those submitted in writing, as well as those provided at public meetings that were held with other Federal agencies, State agencies, nuclear industry representatives, public interest groups, and the general public. This report also contains the NRC staff response to the various concerns raised, and highlights the changes made to the final rule and the supporting documents in response to these concerns.

  15. 30 CFR 585.426 - When must I submit my request for renewal?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    30 ? Mineral Resources ? 2 ? 2012-07-01 ? 2012-07-01 ? false ? When must I submit my request for renewal? ? 585.426 ? Section 585.426 ? Mineral Resources ? BUREAU OF OCEAN ENERGY MANAGEMENT, DEPARTMENT OF THE INTERIOR ? OFFSHORE ? RENEWABLE ENERGY AND ALTERNATE USES OF EXISTING FACILITIES ON...

  16. State Renewable Energy News -- Vol. 7, No. 1, Winter 1998 (Newsletter)

    SciTech Connect

    Not Available

    1998-01-01

    This newsletter is prepared for the NARUC Subcommittee on Renewable Energy to promote information sharing on state-level renewable electric activities. It is sponsored by the Office of Power Technologies of the U.S. Department of Energy.

  17. Renewable energy - Target for 2050

    NASA Astrophysics Data System (ADS)

    Rowe, W. D.

    1982-02-01

    The possibilities of various renewable energy technologies to supply a projected world demand for 40,000 GW years of energy each year by the year 2050 are examined. Noting that industrial processes consume 50% of all energy needs, fossil fuel reserves are shown to be sufficient for a maximum of 370 yr in the U.S., when all supplies become depleted. Breeder reactors have a doubling time which is 30 yr too long for meeting more than 0.5% of world energy demand in 2050, while fusion, even considering ocean-derived deuterium as a fuel source, will not be supplying energy for another 35-70 yr. Among the solar technologies, the installation of ten million 100 m tall 4 MW wind generators is feasible to meet all the projected energy needs, and solar cells with 10% conversion efficiency could do the same with 14 times less land. Further discussion is given to geothermal, fuel cell, and OTEC technologies, as well as the forty trillion dollars necessary to erect the fully renewable systems.

  18. Renewable resources in the US electricity supply

    NASA Astrophysics Data System (ADS)

    1993-03-01

    Renewable resources (solar, wind, geothermal, hydroelectric, biomass, and waste) currently provide nearly 12 percent of the Nation's electricity supply. Almost 10 of this 12 percent is provided by hydroelectric resources alone. Biomass and municipal solid waste (MSW) together contribute more than 1 percent. All other renewable resources, including geothermal, wind, and solar, together provide less than 1 percent of the total. Many renewable resources are relative newcomers to the electric power market. In particular, electricity generation using geothermal, wind, solar, and MSW resources have had their greatest expansion in the 1980's. This was a result of significant technological improvements, the implementation of favorable Federal and State policies, and the reaction to the increasing costs of using fossil and nuclear fuels. The use of renewable resources for electricity generation has also been encouraged as less environmentally damaging than fossil fuels. Because renewable energy is available domestically, renewable resources are viewed as more secure than imported fossil fuels. Descriptions of the history, current use, and forecasted future applications of renewable resources for electricity generation and of the factors that influence those applications are presented.

  19. Renewable Energy Living Lab: Smart Solar

    NSDL National Science Digital Library

    Civil and Environmental Engineering Department,

    Students use real-world data to evaluate whether solar power is a viable energy alternative for several cities in different parts of the U.S. Working in small groups, they examine maps and make calculations using NREL/US DOE data from the online Renewable Energy Living Lab. In this exercise, students analyze cost and availability for solar power, and come to conclusions about whether solar power is a good solution for four different locations.

  20. Acid Ocean

    NSDL National Science Digital Library

    The I2I-Acid Ocean virtual lab is an e-learning activity where students become virtual scientists studying the impact of ocean acidification on sea urchin larval growth. Students recreate a real, up-to-date climate change experiment. They also learn important general scientific principles, such as the importance of sample size and numbers of replicates, and discuss what this research into a specific impact of climate change may mean for the future of our oceans. There is a French translation available.

  1. Chapter 7. Renewal Phenomena Renewal is life reborn.

    E-print Network

    Chen, Kani

    51 Chapter 7. Renewal Phenomena Renewal is life reborn. 7.1. Definitions and basic concepts. 7. Then, N(t) : t 0, is a renewal process. A mathematical definition: N(t) = max{n : n i=0 Xi t, } where, ...} or continuous: [0, ). Obviously, the path of a renewal process is non-decreasing. The renewal literally means

  2. Differentiation Self-renewal

    E-print Network

    Glyde, Henry R.

    Off state Ras Ras­GAP PI3K ERK1 ERK2 Differentiation SC1 SC1 Self-renewal Ras On state GDP GTP N NN the kinase enzyme Figure 1 | Chemically induced stem-cell self-renewal. Chen et al.2 have discovered, which promotes stem-cell self-renewal. Activated Ras also switches on the enzymes ERK1 and ERK2, which

  3. Super capacitor applications for renewable energy generation and control in smart grids

    Microsoft Academic Search

    Yonghua Cheng; DC DC; DC AC

    2011-01-01

    In the renewable energy generation, maximum power point tracking (MPPT) is always expected. However, the scale of integration of renewable energy sources into the existing electric power networks is not infinitive mainly due to the fluctuation of power flow from these sources. In order to ensure power quality in particular AC voltage quality in case of line impedance being significantly

  4. National Renewable Energy Laboratory

    NSDL National Science Digital Library

    2002-04-01

    The National Renewable Energy Lab is the U.S. Department of Energy's premier laboratory for renewable energy research and development and a leading laboratory for energy efficiency research and development. The web site provides access to a large array of information that targets many different audiences. There are educational links and classroom activities and projects suited for audiences from primary education through college-level. Other features include information about different forms of energy, databases on renewable energy production, an extensive photo gallery, and information on current research and applications in energy efficiency and renewable energy.

  5. Renewable Energy Trust

    NSDL National Science Digital Library

    The Renewable Energy Trust, which was created by the Massachusetts Legislature in 1998, is administered by the Massachusetts Technology Collaborative, a statewide quasi-public economic development agency. The Collaborative "seeks to maximize environmental and economic benefits for the Commonwealthâ??s citizens by pioneering and promoting clean energy technologies and fostering the emergence of sustainable markets for electricity generated from renewable sources." The website provides information on the Trust's various programs and activities. The Energy Information section of the website provides more information about renewable energy and suggestions for what energy users can do as well as resources for teaching students about renewable energy and global warming.

  6. COMMISSION GUIDEBOOK RENEWABLES PORTFOLIO

    E-print Network

    , conduit hydroelectric, digester gas, electrolysis, eligibility, fuel cell, gasification, geothermal, Renewables Portfolio Standard, repowered, retail sales, small hydroelectric, SelfGeneration Incentive

  7. 50 CFR 660.515 - Renewal of limited entry permits.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    50 ? Wildlife and Fisheries ? 13 ? 2012-10-01 ? 2012-10-01 ? false ? Renewal of limited entry permits. ? 660.515 ? Section 660.515 ? Wildlife and Fisheries ? FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE (CONTINUED) ? FISHERIES OFF...

  8. Toward a Regional Geography of Renewable Electrical Energy Resources.

    ERIC Educational Resources Information Center

    Pryde, Philip R.

    It is postulated that many types of renewable energy resources, like fossil fuels, are amenable to regional availability analysis. Among these are hydropower, geothermal, ocean temperature gradient, wind, and direct solar energy. A review of the spatial attributes of each of these types reveals areas of the United States that contain comparative…

  9. Future Ocean

    NSDL National Science Digital Library

    The Great Rift Valley is a huge gash cut into East Africa, extending 3000 kilometers from Malawi in southern Africa to the Red Sea in the north. Beneath the Great Rift Valley, the next new ocean on Earth may be forming. This radio broadcast ptovides interviews with geologists who are studying this part of Africa to learn how new seas appear. The tectonic plates that form the continents drift continuously about the globe as new oceans open up and old ones get closed down. But, occasionally, continents themselves split apart and new ocean floor forms from volcanoes that erupt in the the ensuing rift. It is this event that geologists believe they are witnessing in East Africa. The broadcast discusses Project EAGLE (Ethiopia Afar Geoscientific Lithospheric Experiment), an investigation into how a continental rift turns into a new ocean. The broadcast is 30 minutes in length.

  10. Comparing Oceans

    NSDL National Science Digital Library

    A variety of classroom activities and lessons that compare the world's oceans. Activities included: The Gulf of Maine, Satellite Comparisons, Design a Fish, What Migrations, Incredible Feasting of Whales, Paddle to the Sea, and Ocean Soundings. Discover why weather at identical latitudes is not always the same, learn the different ways whales eat, and find out the temperature difference between the Gulf Stream and surrounding water. Links to other Aquarium modules.

  11. Wave Energy Conversion Overview and it's Renewable Energy Potential for the Oil and Gas Industry 

    E-print Network

    Pastor, J.; Liu, Y.; Dou, Y.

    2014-01-01

    Ocean energy conversion has been of interest for many years. Recent developments such as concern over global warming have renewed interest in the topic. Part II provides an overview of the energy density found in ocean waves and how it is calculated...

  12. Renewable Electricity Futures: Exploration of a U.S. Grid with 80% Renewable Electricity

    NASA Astrophysics Data System (ADS)

    Mai, Trieu

    2013-04-01

    Renewable Electricity Futures is an initial investigation of the extent to which renewable energy supply can meet the electricity demands of the contiguous United States over the next several decades. This study explores the implications and challenges of very high renewable electricity generation levels: from 30% up to 90% (focusing on 80%) of all U.S. electricity generation from renewable technologies in 2050. At such high levels of renewable electricity penetration, the unique characteristics of some renewable resources, specifically geographical distribution and variability and un-certainty in output, pose challenges to the operability of the nation's electric system. The study focuses on key technical implications of this environment from a national perspective, exploring whether the U.S. power system can supply electricity to meet customer demand on an hourly basis with high levels of renewable electricity, including variable wind and solar generation. The study also identifies some of the potential economic, environmental, and social implications of deploying and integrating high levels of renewable electricity in the U.S. The full report and associated supporting information is available at: http://www.nrel.gov/analysis/refutures/.

  13. The Green Power Network: Buying Green Power

    NSDL National Science Digital Library

    The Green Power Network (GPN), operated and maintained by the National Renewable Energy Laboratory for the U.S. Department of Energy, provides news and information on green power markets and related activities. Here, they supply a great tool for discovering green power availability throughout the United States. Clicking on any state will provide visitors with any green power including utility green pricing programs, retail green power products offered in competitive utility markets, and renewable energy certificate products (REC) sold separate from electricity. This will be a useful tool for instructors or students interested in renewable energy technologies.

  14. Assessment of Energy Production Potential from Ocean Currents along the United States Coastline

    SciTech Connect

    Haas, Kevin

    2013-09-15

    Increasing energy consumption and depleting reserves of fossil fuels have resulted in growing interest in alternative renewable energy from the ocean. Ocean currents are an alternative source of clean energy due to their inherent reliability, persistence and sustainability. General ocean circulations exist in the form of large rotating ocean gyres, and feature extremely rapid current flow in the western boundaries due to the Coriolis Effect. The Gulf Stream system is formed by the western boundary current of the North Atlantic Ocean that flows along the east coastline of the United States, and therefore is of particular interest as a potential energy resource for the United States. This project created a national database of ocean current energy resources to help advance awareness and market penetration in ocean current energy resource assessment. The database, consisting of joint velocity magnitude and direction probability histograms, was created from data created by seven years of numerical model simulations. The accuracy of the database was evaluated by ORNL?s independent validation effort documented in a separate report. Estimates of the total theoretical power resource contained in the ocean currents were calculated utilizing two separate approaches. Firstly, the theoretical energy balance in the Gulf Stream system was examined using the two-dimensional ocean circulation equations based on the assumptions of the Stommel model for subtropical gyres with the quasi-geostrophic balance between pressure gradient, Coriolis force, wind stress and friction driving the circulation. Parameters including water depth, natural dissipation rate and wind stress are calibrated in the model so that the model can reproduce reasonable flow properties including volume flux and energy flux. To represent flow dissipation due to turbines additional turbine drag coefficient is formulated and included in the model. Secondly, to determine the reasonableness of the total power estimates from the Stommel model and to help determine the size and capacity of arrays necessary to extract the maximum theoretical power, further estimates of the available power based on the distribution of the kinetic power density in the undisturbed flow was completed. This used estimates of the device spacing and scaling to sum up the total power that the devices would produce. The analysis has shown that considering extraction over a region comprised of the Florida Current portion of the Gulf Stream system, the average power dissipated ranges between 4-6 GW with a mean around 5.1 GW. This corresponds to an average of approximately 45 TWh/yr. However, if the extraction area comprises the entire portion of the Gulf Stream within 200 miles of the US coastline from Florida to North Carolina, the average power dissipated becomes 18.6 GW or 163 TWh/yr. A web based GIS interface, http://www.oceancurrentpower.gatech.edu/, was developed for dissemination of the data. The website includes GIS layers of monthly and yearly mean ocean current velocity and power density for ocean currents along the entire coastline of the United States, as well as joint and marginal probability histograms for current velocities at a horizontal resolution of 4-7 km with 10-25 bins over depth. Various tools are provided for viewing, identifying, filtering and downloading the data.

  15. Renewing Liberal Arts Colleges

    ERIC Educational Resources Information Center

    Smith, Harry E.

    1977-01-01

    A guide to the vital signs of institutional renewal and the factors that influence its success and failure are presented. The essay summarizes findings of a team of educators who visited eight liberal arts colleges receiving institutional renewal grants from FIPSE between 1973 and 1975. (Author/LBH)

  16. Renewable energy transportation technologies

    Microsoft Academic Search

    Stanley R. Bull

    1996-01-01

    The need for alternative and renewable transportation fuels continues to be high on the nation's agenda. Substituting these fuels for petroleum can reduce dependence on foreign oil imports, improve air quality, and mitigate greenhouse gases. Renewable fuels offer the same advantages as nonrenewable alternative fuels, and, in addition, provide an inexhaustible supply. The largest potential for significant quantities of liquid

  17. Renewable Energy Annual

    EIA Publications

    2012-01-01

    Presents five chapters covering various aspects of the renewable energy marketplace, along with detailed data tables and graphics. Particular focus is given to renewable energy trends in consumption and electricity; manufacturing activities of solar thermal collectors, solar photovoltaic cells/modules, and geothermal heat pumps; and green pricing and net metering programs. The Department of Energy provides detailed offshore

  18. Renewing the Core Curriculum

    ERIC Educational Resources Information Center

    Lawson, Hal A.

    2007-01-01

    The core curriculum accompanied the development of the academic discipline with multiple names such as Kinesiology, Exercise and Sport Science, and Health and Human Performance. It provides commonalties for undergraduate majors. It is timely to renew this curriculum. Renewal involves strategic reappraisals. It may stimulate change or reaffirm the…

  19. Energy Efficiency & Renewable Energy

    E-print Network

    's electricity consumption. · Texas Achieved Higher Annual Capacity Additions than Other States, While FourEnergy Efficiency & Renewable Energy AUGUST 2010 2009 WIND TECHNOLOGIES MARKET REPORT EXECUTIVE (Berkeley Lab) Kevin Porter and Sari Fink (Exeter Associates) Suzanne Tegen (National Renewable Energy

  20. Renewable Energy News

    NSDL National Science Digital Library

    Renewable Energy News is a comprehensive source which provides world-wide updates on all aspects of renewable energies. The site provides links to organizations and web directories of related products and information. The site is organized in a user-friendly way with issues organized by topic or region. Science, technology, economy energy, and nuclear review are highlighted areas of news.

  1. Energy Conservation Renewable Energy

    E-print Network

    Delgado, Mauricio

    Energy Conservation Renewable Energy The Future at Rutgers University Facilities & Capital Planning Operations & Services Utilities Operations 6 Berrue Circle Piscataway, NJ 08854 #12;Energy Conservation Wh C ti ? R bl EWhy Conservation? Renewable Energy · Climate control reduces green house gases · Reduces

  2. Evaluating Policies to Increase Electricity Generation from Renewable Energy

    Microsoft Academic Search

    Richard Schmalensee

    2012-01-01

    Building on a review of experience in the United States and the European Union, this article advances four main propositions concerning policies aimed at increasing electricity generation from renewable energy. First, who bears the short-run costs of programs to subsidize the generation of electricity from renewable sources varies with the organization of the electric power industry, and this variation may

  3. 10 CFR 52.107 - Application for renewal.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    10 ? Energy ? 2 ? 2012-01-01 ? 2012-01-01 ? false ? Application for renewal. ? 52.107 ? Section 52.107 ? Energy ? NUCLEAR REGULATORY COMMISSION (CONTINUED) ? LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS ? Combined Licenses ? § 52.107 ? Application for renewal. ? The filing of...

  4. 10 CFR 52.61 - Duration of renewal.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    10 ? Energy ? 2 ? 2012-01-01 ? 2012-01-01 ? false ? Duration of renewal. ? 52.61 ? Section 52.61 ? Energy ? NUCLEAR REGULATORY COMMISSION (CONTINUED) ? LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS ? Standard Design Certifications ? § 52.61 ? Duration of renewal. ? Each...

  5. 10 CFR 52.61 - Duration of renewal.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    10 ? Energy ? 2 ? 2013-01-01 ? 2013-01-01 ? false ? Duration of renewal. ? 52.61 ? Section 52.61 ? Energy ? NUCLEAR REGULATORY COMMISSION (CONTINUED) ? LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS ? Standard Design Certifications ? § 52.61 ? Duration of renewal. ? Each...

  6. 10 CFR 52.107 - Application for renewal.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    10 ? Energy ? 2 ? 2010-01-01 ? 2010-01-01 ? false ? Application for renewal. ? 52.107 ? Section 52.107 ? Energy ? NUCLEAR REGULATORY COMMISSION (CONTINUED) ? LICENSES, CERTIFICATIONS, AND APPROVALS FOR NUCLEAR POWER PLANTS ? Combined Licenses ? § 52.107 ? Application for renewal. ? The filing of...

  7. Adapting California's energy markets to growth in renewable resources

    Microsoft Academic Search

    James E. Price; Anjali Sheffrin

    2010-01-01

    Electric power generation is the second-largest category of greenhouse gas emissions in California, next to transportation. California's administration, legislature, and energy regulators have adopted aggressive targets for renewable energy due to heavy reliance on natural gas as a fuel for electric generation, which will result in profound changes in markets and system operations. The growth of renewable in-state generation involves

  8. Goodlad Institute for Educational Renewal

    E-print Network

    Yetisgen-Yildiz, Meliha

    Goodlad Institute for Educational Renewal Annual Report October 2010 #12; Page | 1 PREFACE The Goodlad Institute for Educational Renewal honors the remarkable. Goodlad initiated a national effort to support educational quality and renewal. Looking beyond high

  9. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Tower Road Site in Aurora, Colorado. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Van Geet, O.; Mosey, G.

    2013-03-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Tower Road site in Aurora, Colorado, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site. This study did not assess environmental conditions at the site.

  10. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Kerr McGee Site in Columbus, Mississippi. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Simon, J.; Mosey, G.

    2013-01-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Kerr McGee site in Columbus, Mississippi, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  11. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Sky Park Landfill Site in Eau Claire, Wisconsin. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Simon, J.; Mosey, G.

    2013-01-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Sky Park Landfill site in Eau Claire, Wisconsin, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  12. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Peru Mill Industrial Park in the City of Deming, New Mexico. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Kiatreungwattana, K.; Geiger, J.; Healey, V.; Mosey, G.

    2013-04-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Peru Mill Industrial Park site in the City of Deming, New Mexico, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  13. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Tronox Facility in Savannah, Georgia. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Kiatreungwattana, K.; Geiger, J.; Healey, V.; Mosey, G.

    2013-03-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Tronox Facility site in Savannah, Georgia, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  14. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Crazy Horse Landfill Site in Salinas, California. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Stoltenberg, B.; Konz, C.; Mosey, G.

    2013-03-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Crazy Horse Landfill site in Salinas, California, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) was contacted to provide technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, operation and maintenance requirements, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  15. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Chino Mine in Silver City, New Mexico. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Kiatreungwattana, K.; Geiger, J.; Healey, V.; Mosey, G.

    2013-04-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Chino Mine site in Silver City, New Mexico, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  16. Feasibility Study of Economics and Performance of Solar Photovoltaics at the TechCity East Campus Resource Conservation and Recovery Act Site in Kingston, New York. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Salasovich, J.; Geiger, J. W.; Mosey, G.; Healey, V.

    2014-01-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the TechCity East Campus site in Kingston, New York, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this study is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  17. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Former Chicago, Milwaukee, and St. Paul Rail Yard Company Site in Perry, Iowa. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Salasovich, J.; Geiger, J.; Healey, V.; Mosey, G.

    2013-03-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Former Chicago, Milwaukee & St. Paul Rail Yard Company site in Perry, Iowa, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site. This study did not assess environmental conditions at the site.

  18. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Ft. Hood Military Base Outside Killeen, Texas. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Geiger, J.; Lisell, L.; Mosey, G.

    2013-10-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative through the Region 6 contract, selected Ft. Hood Army Base in Killeen, Texas, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this study is to assess the site for possible photovoltaic (PV) system installations and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  19. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Kolthoff Landfill in Cleveland, Ohio. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Salasovich, J.; Geiger, J.; Mosey, G.; Healey, V.

    2013-06-01

    The U.S. Environmental Protection Agency (EPA), Region 5, in accordance with the RE-Powering America's Land initiative, selected the Kolthoff Landfill site in Cleveland, Ohio, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  20. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Former Fort Ord Army Base Site in Marina, California. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Stoltenberg, B.; Konz, C.; Mosey, G.

    2013-05-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Former Fort Ord Army Base (FOAB) site in Marina, California, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site.

  1. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Price Landfill Site in Pleasantville, New Jersey. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Salasovich, J.; Geiger, J.; Mosey, G.; Healey, V.

    2013-05-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Price Landfill site in Pleasantville, New Jersey, for a feasibility study of renewable energy production. The National Renewable Energy Laboratory (NREL) provided technical assistance for this project. The purpose of this report is to assess the site for a possible photovoltaic (PV) system installation and estimate the cost, performance, and site impacts of different PV options. In addition, the report recommends financing options that could assist in the implementation of a PV system at the site. This study did not assess environmental conditions at the site.

  2. Staff Draft GUIDEBOOK RENEWABLES PORTFOLIO

    E-print Network

    , certification, conduit hydroelectric, digester gas, electrolysis, eligibility, fuel cell, gasification, renewable energy credits, Renewables Portfolio Standard, repowered, retail sales, small hydroelectric, Self

  3. A conference on polymer composites: Infrastructure renewal and economic development

    SciTech Connect

    Creese, R.C.; GangaRao, H. (eds.)

    1999-01-01

    Infrastructure Renewal and Economic Development identifies new applications of composites in areas that include: mining operations; civil infrastructure and its renewal (highways, bridges, sewers and water pipes); offshore exploration and off-shore dwellings; and power transmission. The papers in this new volume assess these areas' critical needs, delineate how composites meet these needs, estimate economic development that could result, explore the technical and regulatory barriers to progress, and identify agencies capable of enabling composite use expansion in infrastructure renewal. They also identify the materials and processes most relevant to infrastructure renewal, and discuss product and process improvements as well as specifications and standardization.

  4. A New AC Current Switch Called MERS with Low On-State Voltage IGBTs (1.54 V) for Renewable Energy and Power Saving Applications

    Microsoft Academic Search

    Ryuichi Shimada; Jan A. Wiik; Takanori Isobe; Taku Takaku; Noriyuki Iwamuro; Yoshiyuki Uchida; Marta Molinas; Tore M. Undeland

    2008-01-01

    Emergence of new power electronics configurations have historically been one of the important drivers for improvement of the IGBT technology. Development of new IGBTs is said to be a trade-off between saturation voltage, short-circuit capability and switching losses. With the common applications requiring high switching frequency and short-circuit capability, the saturation voltage performance has not been fully optimized. This paper

  5. Alternative and Renewable Energy Sources Course Model

    NSDL National Science Digital Library

    The Advanced Technology Environmental and Energy Center (ATEEC) has provided this course development model on renewable energy sources including solar energy, wind power, hydropower, fuel cells, biomass, and alternative transportation. Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item.

  6. Renewable Hydrogen From Wind in California

    Microsoft Academic Search

    Obadiah Bartholomy

    2005-01-01

    Proceedings of the National Hydrogen Association Annual Hydrogen Conference (NHA 2005), Washington, DC, March 29 - April 1, 2005 Hydrogen produced from renewable electricity sources is frequently touted as the long-term goal for the hydrogen economy. The purpose of this paper is to examine the technical and economic realities of using wind power to produce hydrogen on a large scale

  7. Module 5: Introduction to Renewable Energy

    NSDL National Science Digital Library

    Eastern Iowa Community College provides this learning module to teach students about renewable energy on farms, energy storage and distribution, PURPA legislation, and a number of other topics related to agricultural energy. Users can download a zip file in which they will find a syllabus, student handouts, a quiz, and 55 slide PowerPoint presentation.

  8. Renewable Energy Potentials in Saudi Arabia

    Microsoft Academic Search

    S. A. M. Said; I. M. El-Amin; A. M. Al-Shehri

    This paper addresses the current status and the future potentials of renewable energy applications in the Kingdom of Saudi Arabia. The power in the earth's wind and in the solar radiation, which reaches the earth, is sufficient to make significant as well as strategic contributions to the Kingdom energy supply. Applications of solar energy in Saudi Arabia have been growing

  9. Synchrophasor Research Enables Renewables and Improves

    E-print Network

    Synchrophasor Research Enables Renewables and Improves Grid Reliability Energy Systems Research pose a challenge to power grid reliability. Until PIER research put synchrophasor applications Office PIER Smart Grid Research http://www.energy.ca.gov/research/integratio n/transmission.html October

  10. Power from the Ocean Winds

    Microsoft Academic Search

    David Rittenhouse Inglis

    1978-01-01

    No one has been willing to try to moor tens of thousands of floating, megawatt-scale windmills above the moderate depths of the continental shelf off the US Atlantic seaboard. The wind averages from 400 to 700 watts per square meter where on land in New England the wind averages only about 150 watts per square meter. William E. Heronemus proposed

  11. Ocean Acidification

    NSDL National Science Digital Library

    Vicki Osis

    The purpose of the lessons is to teach about ocean acidification, its causes and impacts on marine life especially zooplankton, an essential part of marine food webs. Included in the materials is background information on ocean acidification. There are four different activities included in this document. To do all four you should plan on at least two 45 minute periods. The activities define and explain the process of acidification as well as its impacts on shelled organism. The materials can be adapted and used for grades 5-6 and adding more indepth information makes it suitable for middle and high school students.

  12. Understanding Oceans

    NSDL National Science Digital Library

    Mary Cahill

    This lesson plan is part of the DiscoverySchool.com lesson plan library for grades 6-8. It focuses on oceans currents and their effects. Students do a lab activity to show that temperature is what causes ocean currents. Included are objectives, materials, procedures, discussion questions, evaluation ideas, suggested readings, and vocabulary. There are videos available to order which complement this lesson, an audio-enhanced vocabulary list, and links to teaching tools for making custom quizzes, worksheets, puzzles and lesson plans.

  13. Ocean Science

    NSDL National Science Digital Library

    The European Geosciences Union has been working on a number of open access journals over the past few years, and Ocean Science is just such an endeavor. The intent of the journal is to publish research articles, review papers, and short communications of all stripes. Visitors can sign up for RSS feeds, look over the "General Information" area, and also learn about their submission guidelines. In the "Online Library OS" area, visitors can view recently revised papers, complete issues, special issues, and also search past works by title or author. Also, visitors are welcome to comment on published works and they can also sign up to receive an email subscription to Ocean Science.

  14. Renewable energy technologies adoption in Kazakhstan: potentials, barriers and solutions

    NASA Astrophysics Data System (ADS)

    Karatayev, Marat; Marazza, Diego; Contin, Andrea

    2015-04-01

    The growth in environmental pollution alongside an increasing demand for electricity in Kazakhstan calls for a higher level of renewable energy penetration into national power systems. Kazakhstan has great potential for renewable energies from wind, solar, hydro and biomass resources that can be exploited for electricity production. In 2013, the Kazakhstani Ministry of Energy initiated a new power development plan, which aims to bring the share of renewable energy to 3% by 2020 rising to 30% by 2030 and 50% by 2050. The current contribution of renewable energy resources in the national electricity mix, however, is less than 1%. As a developing country, Kazakhstan has faced a number of barriers to increase renewable energy use, which have to be analysed and translated into a comprehensive renewable energy policy framework. This study presents an overview of the current conditions of renewable energy development in Kazakhstan. Secondly, it identifies and describes the main barriers that prevent diffusion of renewable energy technologies in Kazakhstan. Finally, the paper provides solutions to overcome specific barriers in order to successfully develop a renewable energy technology sector in Kazakhstan.

  15. Pre-Feasibility Analysis of Pellet Manufacturing on the Former Loring Air Force Base Site. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Hunsberger, R.; Mosey, G.

    2014-04-01

    The U.S. Environmental Protection Agency (EPA) Office of Solid Waste and Emergency Response, in accordance with the RE-Powering America's Lands initiative, engaged the U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) to conduct feasibility studies to assess the viability of developing renewable energy generating facilities on contaminated sites. This site, in Limestone, Maine -- formerly the location of the Loring Air Force Base but now owned by the Aroostook Band of Micmac -- was selected for the potential to produce heating pellets from woody feedstock. Biomass was chosen as the renewable energy resource to evaluate based on abundant woody-biomass resources available in the area. NREL also evaluates potential savings from converting existing Micmac property from oil-fired heating to pellet heating.

  16. Renewal creep theory

    SciTech Connect

    Bagley, R.L. [Wright Lab., Wright Patterson AFB, OH (United States); Jones, D.I.G. [Technology/Scientific Services Inc., Dayton, OH (United States); Freed, A.D. [NASA-Lewis Research Center, Cleveland, OH (United States). Materials Division

    1995-04-01

    The mathematics of probability are used to construct a framework that describes some key features of primary and secondary creep. The underlying assumption is that dislocation slip and annihilation are probabilistic events. The resulting mathematical framework takes the form of renewal theory from probability theory. Renewal creep theory provides a mathematical framework for primary creep that accommodates previously developed empirical descriptions. Renewal creep theory also predicts the existence of secondary creep as an asymptotically constant strain-rate phenomenon. Creep modeling techniques are demonstrated for three titanium.

  17. 77 FR 50489 - Office of Energy Efficiency and Renewable Energy

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-08-21

    ...power systems as their electricity generation varies with fluctuations in their renewable ``fuel'' (i.e. wind speed and sunlight availability). Development of these resources is essential for meeting the President's goal of producing 80% of...

  18. Renewable Energy Positioning System: Energy Positioning: Control and Economics

    SciTech Connect

    None

    2012-03-01

    GENI Project: The University of Washington and the University of Michigan are developing an integrated system to match well-positioned energy storage facilities with precise control technologies so the electric grid can more easily include energy from renewable power sources like wind and solar. Because renewable energy sources provide intermittent power, it is difficult for the grid to efficiently allocate those resources without developing solutions to store their energy for later use. The two universities are working with utilities, regulators, and the private sector to position renewable energy storage facilities in locations that optimize their ability to provide and transmit electricity where and when it is needed most. Expanding the network of transmission lines is prohibitively expensive, so combining well-placed storage facilities with robust control systems to efficiently route their power will save consumers money and enable the widespread use of safe, renewable sources of power.

  19. Hawaii Renewable Hydrogen Program State & Regional Initiatives Webinar

    E-print Network

    Hawaii Renewable Hydrogen Program State & Regional Initiatives Webinar 14 October 2009 Mitch Ewan Hydrogen Systems Program Manager Hawaii Natural Energy Institute Chenoa Farnsworth Partner Kolohala Holdings, LLP #12;Overview · Hawaii's Energy Situation · Mitch Ewan · Hawaii Power Park Project · Mitch

  20. Renewable Substitutability Index: Maximizing Renewable Resource Use in Buildings

    EPA Science Inventory

    In order to achieve a material and energy balance in buildings that is sustainable in the long run, there is an urgent need to assess the renewable and non-renewable resources used in the manufacturing process and to progressively replace non-renewable resources with renewables. ...

  1. The Effects of Renewable Portfolio Standards on Renewable Energy Sources

    Microsoft Academic Search

    Adrienne Ohler

    2007-01-01

    Renewable Portfolio Standard (RPS) programs have experienced increased popularity at the state level with twenty-three states adopting policies. Policy makers implement these programs in the hopes of stimulating renewable energy generation and lessening the states reliance on nonrenewable sources, by requiring utility companies to provide a specified amount of electricity from renewable sources. I examine the use of renewable energy

  2. For detailed scholarship renewal information, visit renewal.truman.edu

    E-print Network

    Gering, Jon C.

    For detailed scholarship renewal information, visit renewal.truman.edu Don't Follow. Pursue. Scholarship Renewal Congratulations on being awarded an academic scholarship from Truman State University scholarship renewal requirements: 1. Students earning a cumulative GPA of 3.25 or above while completing

  3. Overview of energy storage systems for storing electricity from renewable energy sources in Saudi Arabia

    Microsoft Academic Search

    Faizur Rahman; Shafiqur Rehman; Mohammed Arif Abdul-Majeed

    Renewable power (photovoltaic, solar thermal or wind) is inherently intermittent and fluctuating. If renewable power has to become a major source of base-load dispatchable power, electricity storage systems of multi-MW capacity and multi-hours duration are indispensable. An overview of the advanced energy storage systems to store electrical energy generated by renewable energy sources is presented along with climatic conditions and

  4. The Ocean.

    ERIC Educational Resources Information Center

    Broecker, Wallace S.

    1983-01-01

    The chemistry of the ocean, whose constituents interact with those of air and land to support life and influence climate, is known to have undergone changes since the last glacial epoch. Changes in dissolved oxygen, calcium ions, phosphate, carbon dioxide, carbonate ions, and bicarbonate ions are discussed. (JN)

  5. Ocean World

    NSDL National Science Digital Library

    The majority of Ocean World is devoted to a series of ten reference sections: coral reefs, currents, El Nino, Fisheries, Ice Ages, icebergs, JASON-1 (a satellite), the role of the ocean in weather, satellites and ocean exploration, and waves. Each section culminates with an interactive quiz, links to sources of related real-time data, and a list of additional related links. Also available is a set of supplementary services, including a glossary, a question and answer section called Ask Dr.Bob, an index page for all of the available real-time dataset sources, primer pages on the use of internet technology, and links to three distance learning courses in oceanography offered by Texas A&M university. An additional series of link lists are broken up into Four Star Sites, General Links, and (the site author's) Bookmarks. Finally, under a teacher's introductory section to the site, instructors can access a guide to using Ocean World in the classroom, find advice on teaching oceanography in general, locate technology lab stations, and follow links to additional teaching resources.

  6. Empty Oceans

    NSDL National Science Digital Library

    How does the human population affect the population of marine species? What can citizens do to sustain seafood populations? In this lesson, students will learn how pieces of the ocean food web, fish, are being removed faster than they can be replenished. Students will also learn how they can become informed consumers to promote sustainable seafood.

  7. Ocean Events

    NSDL National Science Digital Library

    Operational Signifcant Event Imagery

    This website from the Operational Significant Event Imagery (OSEI) team produces high-resolution detailed imagery of significant ocean events. OSEI products typically include sea surface temperature plots and single-channel imagery of oil spills. The images are available in several different file sizes; standard (full resolution) and preview (thumbnail).

  8. Plug-in electric vehicles integration with renewable energy building facility - building\\/vehicle interface

    Microsoft Academic Search

    J. F. Martins; V. Fernao Pires; Luis Gomes; O. Páscoa Dias

    2009-01-01

    Commercial office buildings with renewable energies are becoming more important in the actual context. That integration cannot be seen isolated from the strategic transport planning. Under this context this paper presents an office facility, equipped with renewable energy sources, where the users can recharge their plug-in electric vehicles, using the available renewable power. The system controller is composed by a

  9. Research of the Problems of Renewable Energy Orderly Combined to the Grid in Smart Grid

    Microsoft Academic Search

    Zeng Ming; Huang Lixin; Yan Fan; Jiang Danwei

    2010-01-01

    In this paper, we construct a framework of the management and operation mechanism of renewable energy orderly combined to the grid, considering renewable energy's future development trend and smart grid's future development needs in China. On this basis, propose the key technical problems of renewable energy orderly combined to the grid, including power prediction, system safety analysis, large-scale energy storage

  10. 10 CFR 54.30 - Matters not subject to a renewal review.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ...2010-01-01 false Matters not subject to a renewal review. 54.30 Section 54.30...COMMISSION (CONTINUED) REQUIREMENTS FOR RENEWAL OF OPERATING LICENSES FOR NUCLEAR POWER... § 54.30 Matters not subject to a renewal review. (a) If the...

  11. Operator renewal theory and mixing rates for dynamical systems with in nite measure

    E-print Network

    Operator renewal theory and mixing rates for dynamical systems with in#12;nite measure Ian of operator renewal sequences in the context of in#12;nite ergodic theory. For large classes of dynamical for mixing rates. Sarig [37] introduced a powerful new technique, operator renewal theory, to obtain precise

  12. Leveling Intermittent Renewable Energy Production Through Biomass Gasification-Based Hybrid Systems

    Microsoft Academic Search

    J. Dean; R. Braun; M. Penev; C. Kinchin

    2010-01-01

    The increased use of intermittent renewable power in the United States is forcing utilities to manage increasingly complex supply and demand interactions. This paper evaluates biomass pathways for hydrogen production and how they can be integrated with renewable resources to improve the efficiency, reliability, dispatchability, and cost of other renewable technologies. Two hybrid concepts were analyzed that involve co-production of

  13. NREL's Renewable Energy Development Expertise Reduces Project Risks (Fact Sheet)

    SciTech Connect

    Not Available

    2012-12-01

    This National Renewable Energy Laboratory (NREL) success story fact sheet highlights a June 2012 solar power purchase agreement between the Virgin Islands Water and Power Authority and three corporations. The fact sheet describes how technical assistance from DOE's National Renewable Energy Laboratory enabled the U.S. Virgin Islands to realistically assess its clean energy resources and identify the most viable and cost-effective solutions to its energy challenges--resulting in a $65 million investment in solar energy in the territory.

  14. Renewable Energy Technology Certificate

    NSDL National Science Digital Library

    The Advanced Technology Environmental and Energy Center (ATEEC) has provided this framework for a renewable energy certificate. Users must download this resource for viewing, which requires a free log-in. There is no cost to download the item.

  15. COMMISSION REPORT DEVELOPING RENEWABLE

    E-print Network

    's Office, and several other agencies. The Commission would also like to thank the renewable Ken Alex Staff from other agencies: · Business, Transportation, and Housing ­ Gregg · California Department of Forestry and Fire Protection ­ Cathy Bleier · California Independent

  16. Laser Skin Renewal

    MedlinePLUS

    ... away. Fractional ablative laser resurfacing – Pinpoint laser beams peel away many small areas of skin. Fractional non- ... renewal exist. Topical cosmeceuticals, microdermabrasion, and lunchtime chemical peels provide very mild improvement. Botulinum toxin (Botox®) can ...

  17. Renewable transportation technologies

    SciTech Connect

    Bull, S.R. [National Renewable Energy Lab., Golden, CO (United States)

    1995-12-31

    The need for alternative and renewable transportation fuels continues to be high on the nation`s agenda. Substituting these fuels for petroleum can reduce dependence on foreign oil imports, improve air quality, and mitigate greenhouse gases. Renewable fuels offer the same advantages as nonrenewable alternative fuels, and, in addition, provide an inexhaustible supply. The largest potential for significant quantities of liquid renewable fuels is from the production of biofuels from cellulosic biomass such as wastes and energy crops. Advanced vehicles will provide dramatic fuel efficiency improvements and will likely have electric drive systems. An evolution of vehicles is expected to occur, beginning with an electric vehicle that fills niche markets in the near term, to hybrid vehicles by the year 2000, to fuel cell vehicles after the year 2005. With the combination of renewable fuels and high efficiency, advanced vehicles can move the nation toward a sustainable transportation system.

  18. Strategies for Facilities Renewal

    E-print Network

    Good, R. L.

    STRATEGIES FOR FACILITIES RENEWAL RICHARD L. GOOD Principal Engineer, Environmental Protection and Energy Union Carbide Chemicals & Plastics Company, Inc. Seadrift, Texas ABSTRACT As the current round of expansions within the petro chemical...

  19. Renewable Portfolio Standard

    E-print Network

    Hydroelectric Project as its original baseline eligible renewable energy resource project, and MID also hydroelectric unit, the Stone Drop Electric Generation Station (the Stone Drop Station). The Stone Drop

  20. Water Power for a Clean Energy Future (Fact Sheet)

    SciTech Connect

    Not Available

    2012-03-01

    This fact sheet provides an overview of the U.S. Department of Energy's Wind and Water Power Program's water power research activities. Water power is the nation's largest source of clean, domestic, renewable energy. Harnessing energy from rivers, manmade waterways, and oceans to generate electricity for the nation's homes and businesses can help secure America's energy future. Water power technologies fall into two broad categories: conventional hydropower and marine and hydrokinetic technologies. Conventional hydropower facilities include run-of-the-river, storage, and pumped storage. Most conventional hydropower plants use a diversion structure, such as a dam, to capture water's potential energy via a turbine for electricity generation. Marine and hydrokinetic technologies obtain energy from waves, tides, ocean currents, free-flowing rivers, streams and ocean thermal gradients to generate electricity. The United States has abundant water power resources, enough to meet a large portion of the nation's electricity demand. Conventional hydropower generated 257 million megawatt-hours (MWh) of electricity in 2010 and provides 6-7% of all electricity in the United States. According to preliminary estimates from the Electric Power Resource Institute (EPRI), the United States has additional water power resource potential of more than 85,000 megawatts (MW). This resource potential includes making efficiency upgrades to existing hydroelectric facilities, developing new low-impact facilities, and using abundant marine and hydrokinetic energy resources. EPRI research suggests that ocean wave and in-stream tidal energy production potential is equal to about 10% of present U.S. electricity consumption (about 400 terrawatt-hours per year). The greatest of these resources is wave energy, with the most potential in Hawaii, Alaska, and the Pacific Northwest. The Department of Energy's (DOE's) Water Power Program works with industry, universities, other federal agencies, and DOE's national laboratories to promote the development and deployment of technologies capable of generating environmentally sustainable and cost-effective electricity from the nation's water resources.

  1. Renewable Energy Living Lab: The Bright Idea

    NSDL National Science Digital Library

    Civil and Environmental Engineering Department,

    Students use real-world data to evaluate the feasibility of solar energy and other renewable energy sources in different U.S. locations. Working in small groups, students act as engineers evaluating the suitability of installing solar panels at four company locations. They access data from the online Renewable Energy Living Lab from which they make calculations and analyze how successful solar energy generation would be, as well as the potential for other power sources at those locations. Then they summarize their results, analysis and recommendations in the form of feasibility plans prepared for a CEO.

  2. Renewable Energy Carriers Research Profile

    E-print Network

    Renewable Energy Carriers Research Profile The research program of the Professorship of Renewable applied to renewable energy technologies. The fundamental research focus comprises high-temperature heat (radiative fluxes >10 000 kW/m2 ; temperatures >1000°C; heating rates >1000°C/s) + Renewable Energy

  3. Faculty Renewal and Institutional Revitalization.

    ERIC Educational Resources Information Center

    Farquhar, Robin H.

    2001-01-01

    Examined faculty renewal at Canadian universities. Found certain broad trends: (1) the scope of faculty renewal activities is impressive; (2) certain themes dominate, such as multidisciplinarity and use of information technology; (3) faculty renewal has been effective; (4) institutional capability to undertake faculty renewal is dependent on…

  4. January, 2013 CHEM NEWSLETTER RENEWAL

    E-print Network

    Balasundaram, Balabhaskar "Baski"

    1 January, 2013 CHEM NEWSLETTER RENEWAL It is time to renew your subscription to the Pesticide your renewal to us. If you do not respond we will have to drop you from the mailing list. OSU Extension personnel do not have to renew. OSU PSEP TEST HELP SESSIONS The OSU Pesticide Safety Education Program

  5. January, 2011 CHEM NEWSLETTER RENEWAL

    E-print Network

    Balasundaram, Balabhaskar "Baski"

    1 January, 2011 CHEM NEWSLETTER RENEWAL In case you have not already done so it is time to renew of this edition. Either e-mail or mail your renewal to us. If you do not respond we will have to drop you from the mailing list. OSU Extension personnel do not have to renew. OSU PSEP TEST HELP SESSION The OSU Pesticide

  6. Promoting STEM to Young Students by Renewable Energy Applications

    ERIC Educational Resources Information Center

    Pecen, Recayi; Humston, Jill L.; Yildiz, Faruk

    2012-01-01

    The Math-Science-Engineering Technology in Iowa on Applied Renewable Energy Areas (MSETI-AREA) projects are aimed at providing area school teachers with an applied mathematics and science curriculum package based on photovoltaic (PV) power, wind power, human power and hydrogen fuel-cell fundamentals. The MSETI-AREA project has established a…

  7. Renewable energy sources and energy efficiency for building's greening: From traditional village houses via high-rise residential building's BPS and RES powered co- and tri-generation towards net ZEBuildings and Cities

    Microsoft Academic Search

    Marija S. Todorovic; Olivera Ecim Djuric; Ivana Matinovic; Dusan Licina

    2011-01-01

    As an introduction to the current approaches to building's greening and sustainability this paper outlines the intrinsic harmony of the traditional village houses encompassing efficiency and balanced use of renewable materials and energy sources. Further paper reviews technical advances in integrating energy efficiency, solar and other renewable energy sources in new and existing buildings, to approach sustainable net Zero Energy

  8. Wavelet Spectrum Analysis and Ocean Wind Waves

    E-print Network

    Wavelet Spectrum Analysis and Ocean Wind Waves Paul C. Liu Abstract. Wavelet spectrum analysis] adopted the works of John W. Tukey [22] and introduced the power spectrum analysis to ocean wave studies, Fourier spectrum analysis has been successfully and persistently used in data analysis of wind

  9. National Renewable Energy Laboratory: Education Programs

    NSDL National Science Digital Library

    2012-07-20

    The National Renewable Energy Laboratory (NREL) believes that "educating students, teachers, and consumers is the other key to finding new renewable ways to power our homes, businesses, and cars." This site is full of important educational resources such as classroom activities, online quizzes, and fact sheets that deal with renewable energy technology and applied sciences. In the Educational Resources area, visitors can make their way through several dozen lesson plans, including "History of Solar Cells," "Teacher's Guide to Wind Energy," and "School Energy Audit." Moving on, the DOE Undergraduate Internships & Graduate Fellowships area gives interested parties access to application forms for the Science Undergraduate Laboratory Internship Program and the Graduate Fellowship Program. The site is rounded out by information on the annual Junior Solar Sprint & Hydrogen Fuel Cell Car Competition.

  10. Integrating Renewable Electricity on the Grid

    NASA Astrophysics Data System (ADS)

    Crabtree, George; Misewich, Jim; Ambrosio, Ron; Clay, Kathryn; DeMartini, Paul; James, Revis; Lauby, Mark; Mohta, Vivek; Moura, John; Sauer, Peter; Slakey, Francis; Lieberman, Jodi; Tai, Humayun

    2011-11-01

    The demand for carbon-free electricity is driving a growing movement of adding renewable energy to the grid. Renewable Portfolio Standards mandated by states and under consideration by the federal government envision a penetration of 20-30% renewable energy in the grid by 2020 or 2030. The renewable energy potential of wind and solar far exceeds these targets, suggesting that renewable energy ultimately could grow well beyond these initial goals. The grid faces two new and fundamental technological challenges in accommodating renewables: location and variability. Renewable resources are concentrated at mid-continent far from population centers, requiring additional long distance, high-capacity transmission to match supply with demand. The variability of renewables due to the characteristics of weather is high, up to 70% for daytime solar due to passing clouds and 100% for wind on calm days, much larger than the relatively predictable uncertainty in load that the grid now accommodates by dispatching conventional resources in response to demand. Solutions to the challenges of remote location and variability of generation are needed. The options for DC transmission lines, favored over AC lines for transmission of more than a few hundred miles, need to be examined. Conventional high voltage DC transmission lines are a mature technology that can solve regional transmission needs covering one- or two-state areas. Conventional high voltage DC has drawbacks, however, of high loss, technically challenging and expensive conversion between AC and DC, and the requirement of a single point of origin and termination. Superconducting DC transmission lines lose little or no energy, produce no heat, and carry higher power density than conventional lines. They operate at moderate voltage, allowing many "on-ramps" and "off-ramps" in a single network and reduce the technical and cost challenges of AC to DC conversion. A network of superconducting DC cables overlaying the existing patchwork of conventional transmission lines would create an interstate highway system for electricity that moves large amounts of renewable electric power efficiently over long distances from source to load. Research and development is needed to identify the technical challenges associated with DC superconducting transmission and how it can be most effectively deployed. The challenge of variability can be met (i) by switching conventional generation capacity in or out in response to sophisticated forecasts of weather and power generation, (ii) by large scale energy storage in heat, pumped hydroelectric, compressed air or stationary batteries designed for the grid, or (iii) by national balancing of regional generation deficits and excesses using long distance transmission. Each of these solutions to variability has merit and each requires significant research and development to understand its capacity, performance, cost and effectiveness. The challenge of variability is likely to be met by a combination of these three solutions; the interactions among them and the appropriate mix needs to be explored. The long distances from renewable sources to demand centers span many of the grid's physical, ownership and regulatory boundaries. This introduces a new feature to grid structure and operation: national and regional coordination. The grid is historically a patchwork of local generation resources and load centers that has been built, operated and regulated to meet local needs. Although it is capable of sharing power across moderate distances, the arrangements for doing so are cumbersome and inefficient. The advent of renewable electricity with its enormous potential and inherent regional and national character presents an opportunity to examine the local structure of the grid and establish coordinating principles that will not only enable effective renewable integration but also simplify and codify the grid's increasingly regional and national character.

  11. Ocean Voyagers

    NSDL National Science Digital Library

    Ocean Voyagers is an educational outreach initiative consisting of an interdisciplinary curriculum program. It is designed to allow middle school teachers and students to gain real-world knowledge about oceanographic science, social science, maritime cultures, communication, literature, and the language arts. This site includes: integrated lesson plans on oceanographic science, maritime life and lore, technology and communications, and profiles of the Navy oceanographic survey fleet.

  12. Interactive Oceans

    NSDL National Science Digital Library

    This site is a collaboration of US and Canadian research institutions; it proposes an ocean observatory in the NE Pacific. A network of fiber optic cables on the Juan de Fuca plate will support sensors to monitor geological, chemical and biological events and provide shore-based researchers with real-time data. The site is intended to serve learners from K to college with web access to data, curricula and activities, as well as maps, images, videos of deep-sea environments.

  13. Oceanic Lidar

    NASA Technical Reports Server (NTRS)

    Carder, K. L. (editor)

    1981-01-01

    Instrument concepts which measure ocean temperature, chlorophyll, sediment and Gelbstoffe concentrations in three dimensions on a quantitative, quasi-synoptic basis were considered. Coastal zone color scanner chlorophyll imagery, laser stimulated Raman temperaure and fluorescence spectroscopy, existing airborne Lidar and laser fluorosensing instruments, and their accuracies in quantifying concentrations of chlorophyll, suspended sediments and Gelbstoffe are presented. Lidar applications to phytoplankton dynamics and photochemistry, Lidar radiative transfer and signal interpretation, and Lidar technology are discussed.

  14. Introduction to Ocean Models

    NSDL National Science Digital Library

    2014-09-14

    Oceans cover over 70% of the surface of the earth, yet many details of their workings are not fully understood. To better understand and forecast the state of the ocean, we rely on numerical ocean models. Ocean models combine observations and physics to predict the ocean temperature, salinity, and currents at any time and any place across the ocean basins. This module will discuss what goes into numerical ocean models, including model physics, coordinate systems, parameterization, initialization, and boundary conditions.

  15. Sleep Control for Base Stations Powered by Heterogeneous Energy Sources

    E-print Network

    to the power grid, some BSs are purely powered by the renewable energy. BS sleep is introduced not only to save grid power, but also to store renewable energy for future use when the temporal traffic variation does of those BS powered by the renewable energy, and this will lead to network coverage hole and thus severely

  16. Oceanic Hotspots

    NASA Astrophysics Data System (ADS)

    Batiza, Rodey

    2004-10-01

    The Wilson-Morgan hypothesis that fixed mantle plumes rising from deep in Earth's mantle give rise to linear island and seamount chains like Hawaii has been a leading idea in planetary geodynamics for many decades. However, the notion that these ascending columns of buoyant mantle material are fixed relative to each other or to a fixed reference frame has been questioned because the mean regional flow of the mantle (the so-called mantle wind) would be expected to entrain them and waft them about. Lately, even more fundamental questions have been raised regarding the existence of deep mantle conduits. In fact, the subject of plumes has become quite controversial, with important implications for ideas of mantle convection, Earth's differentiation, and planetary magma budgets and cooling. The appearance of Oceanic Hotspots: Intraplate Submarine Magmatism and Tectonics is thus timely. The 14 chapters contained in this nicely produced volume reflect in part the successful Franco-German collaboration spanning more than 17 years (1986 to present) and 15 expeditions to largely uncharted and unexplored regions of the South Pacific Ocean. The editors intended to produce a comprehensive multidisciplinary overview of oceanic plumes in this region, and in this they have succeeded, with both review and research chapters. Most papers document new discoveries and contain new data and/or new and original thinking, whereas others provide a broad overview and synthesis of existing data.

  17. Feasibility Study of Economics and Performance of Solar Photovoltaics at the Vincent Mullins Landfill in Tucson, Arizona. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Steen, M.; Lisell, L.; Mosey, G.

    2013-01-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Vincent Mullins Landfill in Tucson, Arizona, for a feasibility study of renewable energy production. Under the RE-Powering America's Land initiative, the EPA provided funding to the National Renewable Energy Laboratory (NREL) to support the study. NREL provided technical assistance for this project but did not assess environmental conditions at the site beyond those related to the performance of a photovoltaic (PV) system. The purpose of this report is to assess the site for a possible PV installation and estimate the cost and performance of different PV configurations, as well as to recommend financing options that could assist in the implementation of a PV system. In addition to the Vincent Mullins site, four similar landfills in Tucson are included as part of this study.

  18. TidGen Power System Commercialization Project

    SciTech Connect

    Sauer, Christopher R. [President & CEO] [President & CEO; McEntee, Jarlath [VP Engineering & CTO] [VP Engineering & CTO

    2013-12-30

    ORPC Maine, LLC, a wholly-owned subsidiary of Ocean Renewable Power Company, LLC (collectively ORPC), submits this Final Technical Report for the TidGen® Power System Commercialization Project (Project), partially funded by the U.S. Department of Energy (DE-EE0003647). The Project was built and operated in compliance with the Federal Energy Regulatory Commission (FERC) pilot project license (P-12711) and other permits and approvals needed for the Project. This report documents the methodologies, activities and results of the various phases of the Project, including design, engineering, procurement, assembly, installation, operation, licensing, environmental monitoring, retrieval, maintenance and repair. The Project represents a significant achievement for the renewable energy portfolio of the U.S. in general, and for the U.S. marine hydrokinetic (MHK) industry in particular. The stated Project goal was to advance, demonstrate and accelerate deployment and commercialization of ORPC’s tidal-current based hydrokinetic power generation system, including the energy extraction and conversion technology, associated power electronics, and interconnection equipment capable of reliably delivering electricity to the domestic power grid. ORPC achieved this goal by designing, building and operating the TidGen® Power System in 2012 and becoming the first federally licensed hydrokinetic tidal energy project to deliver electricity to a power grid under a power purchase agreement in North America. Located in Cobscook Bay between Eastport and Lubec, Maine, the TidGen® Power System was connected to the Bangor Hydro Electric utility grid at an on-shore station in North Lubec on September 13, 2012. ORPC obtained a FERC pilot project license for the Project on February 12, 2012 and the first Maine Department of Environmental Protection General Permit issued for a tidal energy project on January 31, 2012. In addition, ORPC entered into a 20-year agreement with Bangor Hydro Electric Company on January 1, 2013 for up to 5 megawatts at a price of $215/MWh, escalating at 2.0% per year.

  19. Feasibility Study of Economics and Performance of a Hydroelectric Installation at the Jeddo Mine Drainage Tunnel. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Roberts, J. O.; Mosey, G.

    2013-02-01

    The U.S. Environmental Protection Agency (EPA), in accordance with the RE-Powering America's Land initiative, selected the Jeddo Tunnel discharge site for a feasibility study of renewable energy potential. The purpose of this report is to assess technical and economic viability of the site for hydroelectric and geothermal energy production. In addition, the report outlines financing options that could assist in the implementation of a system.

  20. Oceans and climate change: The future of spaceborne altimetry

    Microsoft Academic Search

    C. Koblinsky; P. Caspar; G. Lagerloef

    1992-01-01

    Oceans and polar ice sheets are dominant elements of the climate system and require global observations to understand their role in climate changes. As repeatedly demonstrated over the past 2 decades, satellite altimetry is a unique powerful technique for providing global information on ocean circulation and ice sheet volume. ``Oceans and Climate Change: The Future of Spaceborne Altimetry,'' written by

  1. Renewable energy and utility regulation

    SciTech Connect

    Not Available

    1991-04-10

    This report summarizes the results of a joint project on renewable energy of the National Association of Regulatory Utility Commissioners (NARUC) and the US DOE. NARUC'S Task Force on Renewable Energy conducted a review of the current state of renewable energy technologies to evaluate their potential and extract key policy lessons from experience already gained in deployment of these technologies in numerous states. The main focus of this effort has been to clarify how utility regulators affect the development of renewable energy resources. The goal of the project was twofold: (1) identify the factors that have led to success or failure or renewable energy technologies in various energy markets, and (2) to develop an agenda on renewable energy and utility regulation for NARUC and the DOE. This report consists of three sections: renewable energy contributions, costs and potential; factors affecting development of renewable energy resources; and a renewable energy agenda for NARUC.

  2. Renewable energy and utility regulation

    SciTech Connect

    Not Available

    1991-04-10

    This report summarizes the results of a joint project on renewable energy of the National Association of Regulatory Utility Commissioners (NARUC) and the US DOE. NARUC`S Task Force on Renewable Energy conducted a review of the current state of renewable energy technologies to evaluate their potential and extract key policy lessons from experience already gained in deployment of these technologies in numerous states. The main focus of this effort has been to clarify how utility regulators affect the development of renewable energy resources. The goal of the project was twofold: (1) identify the factors that have led to success or failure or renewable energy technologies in various energy markets, and (2) to develop an agenda on renewable energy and utility regulation for NARUC and the DOE. This report consists of three sections: renewable energy contributions, costs and potential; factors affecting development of renewable energy resources; and a renewable energy agenda for NARUC.

  3. Bistatic model of ocean scattering

    Microsoft Academic Search

    Giovanni Picardi; Roberto Seu; Stefano G. Sorge; Manuel Martin Neira

    1998-01-01

    An analytical closed-form model is derived for the average power echo received by a bistatic altimeter from an oceanic surface at a frequency high enough for the Kirchhoff scattering mechanism to be dominant over the Bragg resonance one. The asymmetric behavior of the sea waves is taken into account, modeling the surface height as a non-Gaussian distributed random process and

  4. Renewable Energy Policy Project

    NSDL National Science Digital Library

    Established in 1995 with funding from the Energy Foundation and the Department of Energy, the Renewable Energy Policy Project (REPP) has spent the past decade educating the general public about renewable energies. This is accomplished by providing competent and rigorous policy analysis about the myriad of issues surrounding the viability and sustainability of such energy sources. Visitors to the siteâ??s homepage will find clickable icons (such as those depicting wind, solar, and hydrogen), and they can discover the variety of resources associated with each type of renewable energy source. These resources generally include a brief description of the REPPâ??s work in each field, along with links to some of their more recent working papers and policy briefs. For persons who hope to join the discussion about some of these timely topics, the site also maintains a number of relevant listservs, such as those dealing with bioconversion and strawbale conversion.

  5. Fuzzy ARTMAP based forecast of renewable generation for a high frequency AC microgrid

    Microsoft Academic Search

    Sudipta Chakraborty; Marcelo G. Simões

    2005-01-01

    A single phase high frequency AC (HFAC) microgrid is a novel solution towards integration of renewable energy sources in a distributed generation system. Power flow and power quality issues in the HFAC microgrid are controlled by the active filtering solutions called universal active power line conditioner (UPLC) and unified power quality conditioner (UPQC) respectively. After power quality and power flow

  6. The Europa Ocean Discovery mission

    SciTech Connect

    Edwards, B.C. [Los Alamos National Lab., NM (United States); Chyba, C.F. [Univ. of Arizona, Tucson, AZ (United States); Abshire, J.B. [National Aeronautics and Space Administration, Greenbelt, MD (United States). Goddard Space Flight Center] [and others

    1997-06-01

    Since it was first proposed that tidal heating of Europa by Jupiter might lead to liquid water oceans below Europa`s ice cover, there has been speculation over the possible exobiological implications of such an ocean. Liquid water is the essential ingredient for life as it is known, and the existence of a second water ocean in the Solar System would be of paramount importance for seeking the origin and existence of life beyond Earth. The authors present here a Discovery-class mission concept (Europa Ocean Discovery) to determine the existence of a liquid water ocean on Europa and to characterize Europa`s surface structure. The technical goal of the Europa Ocean Discovery mission is to study Europa with an orbiting spacecraft. This goal is challenging but entirely feasible within the Discovery envelope. There are four key challenges: entering Europan orbit, generating power, surviving long enough in the radiation environment to return valuable science, and complete the mission within the Discovery program`s launch vehicle and budget constraints. The authors will present here a viable mission that meets these challenges.

  7. Renewable Energy Business Partnerships in China: Renewable Energy in China

    SciTech Connect

    Not Available

    2004-04-01

    China has rich potential for renewable energy development including wind energy, solar, biomass, hydropower, and geothermal. Fact sheet describes Chinas policy for attracting foreign investment, Chinas tax policy, import duties, currency exchange, and renewable joint ventures in China.

  8. Energy 5: Renewable and Non-Renewable Resources

    NSDL National Science Digital Library

    2012-12-19

    This video distinguishes between renewable and non-renewable energy resources. It examines the question, "How long to do we have before we exhaust non-renewable resources?" It also looks at alternatives to non-renewable energy resources. This video is part of the Sustainability Learning Suites, made possible in part by a grant from the National Science Foundation. See 'Learn more about this resource' for Learning Objectives and Activities.

  9. Nuclear plant license renewal in the U. S

    SciTech Connect

    Murley, T.; Crutchfield, D.; Travers, W.; Craig, J. (Nuclear Regulatory Commission, Washington, DC (United States))

    1992-01-01

    Establishing criteria for the renewal of licenses for operating nuclear power plants is of vital importance to the United States. Recently the US Nuclear Regulatory Commission finalized regulations concerning the licensing requirements to be met for a renewed license by publishing 10 CFR Part 54. A proposed revision to the NRC's environmental protection regulations (10 CFR Part 51) to specifically address potential environmental impacts associated with license renewal was also issued for public comment in 1991 and is expected to be issued in final form in 1992. This paper addresses the philosophy and specific technical aspects of the US regulations directly affecting license renewal. In addition, the paper discusses NRC regulatory process and supporting regulatory guidance, industry reports affecting a majority of the plants potentially seeking license renewal, and the efforts of the lead plants.

  10. Ocean Surface Currents Glossary

    NSDL National Science Digital Library

    This glossary provides short definitions of the oceanographic jargon used to describe ocean surface currents. It is designed to accompany the website "Ocean Surface Currents", a reference that provides information on surface currents in the world's oceans.

  11. Petroleum industry and renewables

    Microsoft Academic Search

    Patrick Corbett; Sandy Kerr; Bryce Richards; Jon Side; David Davies

    In this paper, we review activity by the large petroleum majors in the renewables sector. Oil companies have traditional- ly invested in other energy sectors (e.g., coal, nuclear) but in recent years the trend has been to concentrate on the petrole- um sector. The low price of oil throughout the last decade of the 20 th century limited the scope

  12. Renewable liquid reflection grating

    DOEpatents

    Ryutov, Dmitri D.; Toor, Arthur

    2003-10-07

    A renewable liquid reflection grating. Electrodes are operatively connected to a conducting liquid in an arrangement that produces a reflection grating and driven by a current with a resonance frequency. In another embodiment, the electrodes create the grating by a resonant electrostatic force acting on a dielectric liquid.

  13. Biodiesel and renewable diesel

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Biodiesel is an alternative diesel fuel produced from vegetable oil, animal fats or waste oils. The process used in its production is known as transesterification. If vegetable oils or animal fats are subjected to a process similar for making diesel fuel derived from petroleum, a fuel called renew...

  14. Canadian Renewable Fuels Association

    NSDL National Science Digital Library

    The CRFA promotes the use of renewable bio-fuels (ethanol, biodiesel). Membership includes representatives from fuel marketing, fuel production agriculture, forestry, engineering and environmental organizations, and researchers and individuals. Visitors can find policy papers, industry statistics, plant locations, and FAQs and fact sheets about biodiesel and ethanol.

  15. Renewable Fuels Association

    NSDL National Science Digital Library

    The national trade association for the U.S. fuel ethanol industry, the Renewable Fuels Association (RFA) serves as a vital link between the ethanol industry and the federal government, to promote increased production and use of ethanol through supportive policies, regulations, and research & development initiatives.

  16. Financing investments in renewable energy: The role of policy design and restructuring

    SciTech Connect

    Wiser, R.; Pickle, S. [Lawrence Berkeley National Lab., CA (United States). Environmental Energy Technologies Div.

    1997-03-01

    The costs of electric power projects utilizing renewable energy technologies are highly sensitive to financing terms. Consequently, as the electricity industry is restructured and new renewables policies are created, it is important for policymakers to consider the impacts of renewables policy design on project financing. This report describes the power plant financing process and provides insights to policymakers on the important nexus between renewables policy design and finance. A cash-flow model is used to estimate the impact of various financing variables on renewable energy costs. Past and current renewable energy policies are then evaluated to demonstrate the influence of policy design on the financing process and on financing costs. The possible impacts of electricity restructuring on power plant financing are discussed and key design issues are identified for three specific renewable energy programs being considered in the restructuring process: (1) surcharge-funded policies; (2) renewables portfolio standards; and (3) green marketing programs. Finally, several policies that are intended to directly reduce financing costs and barriers are analyzed. The authors find that one of the key reasons that renewables policies are not more effective is that project development and financing processes are frequently ignored or misunderstood when designing and implementing renewable energy incentives. A policy that is carefully designed can reduce renewable energy costs dramatically by providing revenue certainty that will, in turn, reduce financing risk premiums.

  17. Renewable liquid reflecting zone plate

    SciTech Connect

    Toor, Arthur; Ryutov, Dmitri D.

    2003-12-09

    A renewable liquid reflecting zone plate. Electrodes are operatively connected to a dielectric liquid in a circular or other arrangement to produce a reflecting zone plate. A system for renewing the liquid uses a penetrable substrate.

  18. STAFF DRAFT GUIDEBOOK RENEWABLES PORTFOLIO

    E-print Network

    , certificates, certification, common carrier pipeline, conduit hydroelectric, digester gas, electrolysis, eligibility, energy storage, fuel cell, gasification, geothermal, hydroelectric, hydrogen, incremental, renewable energy credits, Renewables Portfolio Standard, repowered, retail sales, small hydroelectric, Self

  19. Fuel-efficiency of hydrogen and heat storage technologies for integration of fluctuating renewable energy sources

    Microsoft Academic Search

    Brian Vad Mathiesen; Henrik Lund

    2005-01-01

    This paper presents the methodology and results of analysing the use of different energy storage technologies in the task of integration of fluctuating renewable energy sources (RES) into the electricity supply. The analysis is done on the complete electricity system including renewable energy sources as well as power plants and CHP (combined heat and power production). Emphasis is put on

  20. On the role of fuel cells and hydrogen in a more sustainable and renewable energy future

    Microsoft Academic Search

    Jacob Brouwer

    2010-01-01

    Fuel cell energy conversion devices and use of hydrogen as an energy carrier have benefited from major technological advancements in recent years. Fuel cells can provide continuous power with extremely low (or zero) criteria pollutant and greenhouse gas emissions from a variety of renewable and fossil fuels that well compliments the relative intermittency of many forms of renewable power. The

  1. Exploring and Contextualizing Public Opposition to Renewable Electricity in the United States

    Microsoft Academic Search

    Benjamin K. Sovacool

    2009-01-01

    This article explores public opposition to renewable power technologies in the United States. It begins by discussing the genesis of environmental ethics, or how some Americans have come to place importance on the protection of the environment and preservation of species, ecosystems, and the biosphere. As result, renewable power systems have become challenged on ethical and environmental grounds and are

  2. 77 FR 31895 - Energy Northwest, Columbia Generating Station; Record of Decision and Issuance of Renewed...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-05-30

    ...reactor core power levels not in excess of 3,486 megawatts thermal in accordance with the provisions of the Columbia renewed operating...reactor core power levels not in excess of 3,486 megawatts thermal in accordance with the provisions of the Columbia renewed...

  3. NRC Issues final rule on license renewal

    SciTech Connect

    Greenberger, L.S.

    1992-01-01

    In a unanimous vote, the Nuclear Regulatory Commission (NRC) has approved a final rule on nuclear power plant license renewal. The rule outlines the procedure by which plant operators will show that they have addressed age-related stresses on certain systems, structures, and components. Right now, 112 nuclear units - supplying 20 percent of the nation's electricity - have been licensed to operate. The original 40-year operating licenses for almost half (41) of those will expire between the years 2000 and 2014.

  4. Sustainable data centers powered by renewable energy

    Microsoft Academic Search

    Levente J. Klein; Sergio Bermudez; Hans-Dieter Wehle; Stephan Barabasi; Hendrik F. Hamann

    2012-01-01

    The energy consumption of data centers (DCs) has dramatically increased in recent years, primarily due to the massive computing demands driven by communications, banking, online retail, and entertainment services. In today's data centers, the cooling and infrastructure operations require almost the same energy as the IT operations. The large energy consumption in data centers prompted government agencies, industries, professional organizations,

  5. GROUND WATER REMEDIATION POWERED WITH RENEWABLE ENERGY

    EPA Science Inventory

    Technical challenge: Resource conservation has become a critical concept in the remediation of contaminated ground water supplies. Ground water remedies which include surface discharge of treated ground water are often viewed as wasteful and non-sustainable....

  6. LEAD COMMISSIONER REPORT RENEWABLE POWER IN

    E-print Network

    Lorraine Gonzalez Judy Grau Mike Gravely Lynette Green Karen Griffin Eli Harland Mark Hesters Candace Hill Sichon Linda Spiegel Margaret Sheridan Amanda Stennick Brian Stevens Shaelyn Strattan Sarah Taheri Angela

  7. Contribution of oceanic gas hydrate dissociation to the formation of Arctic Ocean methane plumes

    Microsoft Academic Search

    Matthew T. Reagan; George J. Moridis; Scott M. Elliott; Mathew Maltrud

    2011-01-01

    Vast quantities of methane are trapped in oceanic hydrate deposits, and there is concern that a rise in the ocean temperature will induce dissociation of these hydrate accumulations, potentially releasing large amounts of carbon into the atmosphere. Because methane is a powerful greenhouse gas, such a release could have dramatic climatic consequences. The recent discovery of active methane gas venting

  8. Renewable energy: Ethanol from biomass

    Microsoft Academic Search

    J. T. Mullins; C. C. Nesmith

    1985-01-01

    Information is provided on the current status of both promising and proven sources of renewable energy in the State of Florida. Available conversion technologies, federal and state governmental promotion efforts, and private sector utilization of renewable energy are reviewed. Issues and factors that may advance or inhibit the greater use of renewable energy sources are identified and discussed. The public

  9. Who Owns Renewable Energy Certificates?

    Microsoft Academic Search

    Edward Holt; Ryan Wiser; Mark Bolinger

    2006-01-01

    Renewable energy certificates (RECs) are tradable instruments that convey the attributes of a renewable energy generator and the right to make certain claims about energy purchases. RECs first appeared in US markets in the late 1990s and are particularly important in states that accept or require them as evidence of compliance with renewables portfolio standards (RPS). The emergence of RECs

  10. THEHARVARDCAMPAIGNFORARTS&SCIENCES HOUSE RENEWAL &

    E-print Network

    THEHARVARDCAMPAIGNFORARTS&SCIENCES HOUSE RENEWAL & THE STUDENT EXPERIENCE #12;#12;#12;#12;CAMPAIGN of Pablo Picasso's Head of Seated Woman, 1962. OUR PRIORITIES FINANCIAL AID HOUSE RENEWAL & THE STUDENT students in the intellectual life of Harvard and exposing them to new perspectives. HOUSE RENEWAL

  11. THEHARVARDCAMPAIGNFORARTS&SCIENCES house renewal &

    E-print Network

    THEHARVARDCAMPAIGNFORARTS&SCIENCES house renewal & the student experience #12;#12;campaign's Head of Seated Woman, 1962. our priorities Financial aid House renewal & tHe student experience FacultyH learning, cOnnect friends, and sHape lives House renewal & tHe student experience campaign

  12. Breaking News Egyptian Passport Renewal

    E-print Network

    Scharer, John E.

    Breaking News Egyptian Passport Renewal In light of the recent upheavals in the Egyptian government, the Egyptian Embassy recommends that any Egyptian applying to renew a passport should follow this process: Contact the embassy in Washington, D.C. Inform the representative of the intent to renew a passport

  13. Gerold Alsmeyer Renewal, Recurrence and

    E-print Network

    Alsmeyer, Gerold

    Gerold Alsmeyer Renewal, Recurrence and Regeneration February 16, 2010 Springer #12;#12;For . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1 The renewal problem: a simple example to begin with . . . . . . . . . . . . 2 1.2 The Poisson easier: the standard model of a random walk . . . 31 2.1.3 Classification of renewal processes

  14. DRAFT COMMITTEE REPORT RENEWABLE ENERGY PROGRAM

    E-print Network

    DRAFT COMMITTEE REPORT RENEWABLE ENERGY PROGRAM 2011 ANNUAL REPORT Gonçalves Office Manager Renewable Energy Office Panama Bartholomy Deputy Director Energy Efficiency by the California Energy Commission's Renewables Committee as part of Renewable Energy Program ­ Docket # 02-REN

  15. DRAFT COMMITTEE REPORT RENEWABLE ENERGY PROGRAM

    E-print Network

    DRAFT COMMITTEE REPORT RENEWABLE ENERGY PROGRAM 2010 ANNUAL REPORT Authors Madeleine Meade Project Manager Tony Gonçalves Office Manager Renewable Energy Office Valerie Hall This report was prepared by the California Energy Commission Renewables Committee as part of Renewable Energy

  16. RENEWABLES PORTFOLIO STANDARD 2005 PROCUREMENT VERIFICATION

    E-print Network

    CALIFORNIA ENERGY COMMISSION RENEWABLES PORTFOLIO STANDARD 2005 PROCUREMENT VERIFICATION, RENEWABLES, AND DEMAND ANALYSIS DIVISION #12;ABSTRACT This Renewables Portfolio Standard Verification Report procured by select retail sellers of electricity under California's Renewables Portfolio Standard (RPS

  17. RENEWABLES PORTFOLIO STANDARD 2006 PROCUREMENT VERIFICATION

    E-print Network

    0 CALIFORNIA ENERGY COMMISSION RENEWABLES PORTFOLIO STANDARD 2006 PROCUREMENT VERIFICATION AND RENEWABLES DIVISION #12;#12;i Acknowledgements The Renewables Portfolio Standard 2006 Procurement Renewables Portfolio Standard 2006 Procurement Verification Report. California Energy Commission. CEC

  18. RENEWABLES PORTFOLIO STANDARD 2006 PROCUREMENT VERIFICATION

    E-print Network

    CALIFORNIA ENERGY COMMISSION RENEWABLES PORTFOLIO STANDARD 2006 PROCUREMENT VERIFICATION AND RENEWABLES DIVISION #12;#12;Acknowledgements The Renewables Portfolio Standard 2006 Procurement Renewables Portfolio Standard 2006 Procurement Verification Report. California Energy Commission. CEC

  19. The renewables portfolio standard in Texas: An early assessment

    SciTech Connect

    Wiser, Ryan H.; Langniss, Ole

    2001-11-01

    Texas has rapidly emerged as one of the leading wind power markets in the United States. This development can be largely traced to a well-designed and carefully implemented renewables portfolio standard (RPS). The RPS is a new policy mechanism that has received increasing attention as an attractive approach to support renewable power generation. Though replacing existing renewable energy policies with an as-of-yet largely untested approach in the RPS is risky, early experience from Texas suggests that an RPS can effectively spur renewables development and encourage competition among renewable energy producers. Initial RPS targets in Texas will be far exceeded by the end of 2001, with as much as 930 MW of wind slated for installation this year. RPS compliance costs appear negligible, with new wind projects reportedly contracted for under 3(US)/242/kWh, in part as a result of a 1.7(US)/242/kWh production tax credit, an outstanding wind resource, and an RPS that is sizable enough to drive project economies of scale. Obliged retail suppliers have been willing to enter into long-term contracts with renewable generators, reducing important risks for both the developer and the retail supplier. Finally, the country's first comprehensive renewable energy certificate program has been put into place to monitor and track RPS compliance.

  20. The Caribbean Basin: A prime market for renewables

    SciTech Connect

    Sklar, S.

    1989-04-01

    Countries in the Caribbean basin have high energy prices and need additional electrical generating capacity. Renewable energy and independent power sources could help meet that need. The Caribbean Basin and the Pacific Rim appear to offer the best total market opportunities considering government energy policies, prices of energy, and consumer attitudes on renewable energy applications. The Caribbean Basin was selected for an industry project opportunity review. This area was selected due to its proximity, renewable resource base, need for energy and growth, and potential for private and multidevelopment bank funding of projects. 3 figs.

  1. 75 FR 52375 - Dominion Energy Kewaunee, Inc. Kewaunee Power Station; Notice of Availability of the Final...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-25

    ...Environmental Impact Statement for License Renewal of Nuclear Plants Regarding the License Renewal of Kewaunee Power Station Notice is hereby...Environmental Impact Statement for License Renewal of Nuclear Plants (GEIS),...

  2. Subtleties in forcing eddy resolving ocean models with satellite wind data

    Microsoft Academic Search

    Yongsheng Xu; Robert B. Scott

    2008-01-01

    Using new global satellite remote sensing data, we show that ignoring the ocean current dependence in the wind stress artificially increases global wind power input to the oceanic general circulation by about 32%, and more than doubles the input in the regions of strong ocean current systems. Scatterometer-derived wind stress naturally accounts for the moving ocean that is not included

  3. Renewable energy technology handbook for military engineers

    NASA Astrophysics Data System (ADS)

    1982-03-01

    Renewable energy applications are introduced that are considered promising for military use in the 1980s. These are: solar hot water for buildings, active solar hot water and space heating for buildings, passive solar heating and cooling of buildings, solar industrial process heata, solar ponds, photovoltaic power for homes, photovoltaic power for remote applications, parabolic dish solar systems for remote applications, wind energy for buildings, wind energy for central power plants, wind energy for water pumping, biomass energy systems for buildings, biomass energy systems for central power plants, geothermal energy for process heat, and geothermal energy for central power plants. For each of these is given: a brief history of the technology and information on how the technology works; a detailed technical and economic profile of an operating system; and a summary listing of operating civilian and military systems that are open for public viewing.

  4. Climate, Water and Renewable Energy in the Nordic Countries

    Microsoft Academic Search

    A. Snorrason; J. F. Jonsdottir

    2004-01-01

    Climate and Energy (CE) is a new Nordic research project with funding from Nordic Energy Research (NEFP) and the Nordic energy sector. The project has the objective of a comprehensive assessment of the impact of climate variability and change on Nordic renewable energy resources including hydropower, wind power, bio-fuels and solar energy. This will include assessment of the power production

  5. Small Hydropower Plants as a New and Renewable Energy Source

    Microsoft Academic Search

    Ömer Yüksek; Kamÿil Kaygusuz

    2006-01-01

    The inherent technical, economic, and environmental benefits of hydroelectric power make it an important contributor to the future world energy mix, particularly in the developing countries. Technically feasible hydropower estimated at nearly 15,000 TWh\\/yr still exists in the world today, mostly in countries where increased power supplies from clean and renewable sources are most urgently needed to progress social and

  6. Research and developments on ocean thermal energy conversion

    Microsoft Academic Search

    C. M. Wang; A. A. Yee; H. Krock; Z. Y. Tay

    2011-01-01

    Ocean thermal energy conversion (OTEC) is a very promising source of clean and renewable energy for our planet. This review article presents the research and developments on OTEC with regard to energy utilisation, platform design and mooring system, heat exchanger system and environmental impact. It also includes very recent developments in realising the construction of large scale OTEC facilities.

  7. Renewal Processes Gianfranco Balbo, Andras Horvath

    E-print Network

    Horváth, András

    Renewal Processes Gianfranco Balbo, Andr´as Horv´ath based on Kulkarni's book entitled Modeling Properties of the Counting Function 4 Renewal argument 5 The Renewal Function 6 Renewal Type Equations 7 Key Renewal Theorem Definition renewal process counts events Xn: time interval between the (n - 1)th and nth

  8. The true cost of renewables: An analytic response to the coal industry`s attack on renewable energy

    Microsoft Academic Search

    B. G. Swezey; Yih-huei Wan

    1995-01-01

    In April 1995, the Center for Energy and Economic Development (CEED), an umbrella organization of pro-coal interests, released a report entitled Energy Choices in a Competitive Era: The Role of Renewable and Traditional Energy Resources in America`s Electric Generation Mix. The report purports to show that a very modest growth in the use of renewable energy in the U.S. power

  9. High field NMR spectroscopy and FTICR mass spectrometry: powerful discovery tools for the molecular level characterization of marine dissolved organic matter from the South Atlantic Ocean

    NASA Astrophysics Data System (ADS)

    Hertkorn, N.; Harir, M.; Koch, B. P.; Michalke, B.; Grill, P.; Schmitt-Kopplin, P.

    2012-01-01

    Non target high resolution organic structural spectroscopy of marine dissolved organic matter (DOM) isolated on 27 November 2008 by means of solid phase extraction (SPE) from four different depths in the South Atlantic Ocean off the Angola coast (3.1° E; -17.7° S; Angola basin) provided molecular level information of complex unknowns with unprecedented coverage and resolution. The sampling was intended to represent major characteristic oceanic regimes of general significance: 5 m (FISH; near surface photic zone), 48 m (FMAX; fluorescence maximum), 200 m (upper mesopelagic zone) and 5446 m (30 m above ground). 800 MHz proton (1H) nuclear magnetic resonance (NMR) 1H NMR, spectra were least affected by fast and differential transverse NMR relaxation and produced at first similar looking, rather smooth bulk NMR envelopes reflecting intrinsic averaging from massive signal overlap. Visibly resolved NMR signatures were most abundant in surface DOM but contributed at most a few percent to the total 1H NMR integral and were mainly limited to unsaturated and singly oxygenated carbon chemical environments. The relative abundance and variance of resolved signatures between samples was maximal in the aromatic region; in particular, the aromatic resolved NMR signature of the deep ocean sample at 5446 m was considerably different from that of all other samples. When scaled to equal total NMR integral, 1H NMR spectra of the four marine DOM samples revealed considerable variance in abundance for all major chemical environments across the entire range of chemical shift. Abundance of singly oxygenated CH units and acetate derivatives declined from surface to depth whereas aliphatics and carboxyl-rich alicyclic molecules (CRAM) derived molecules increased in abundance. Surface DOM contained a remarkably lesser abundance of methyl esters than all other marine DOM, likely a consequence of photodegradation from direct exposure to sunlight. All DOM showed similar overall 13C NMR resonance envelopes typical of an intricate mixture of natural organic matter with noticeable peaks of anomerics and C-aromatics carbon whereas oxygenated aromatics and ketones were of too low abundance to result in noticeable humps at the S/N ratio provided. Integration according to major substructure regimes revealed continual increase of carboxylic acids and ketones from surface to deep marine DOM, reflecting a progressive oxygenation of marine DOM, with concomitant decline of carbohydrate-related substructures. Isolation of marine DOM by means of SPE likely discriminated against carbohydrates but produced materials with beneficial NMR relaxation properties: a substantial fraction of dissolved organic molecules present allowed the acquisition of two-dimensional NMR spectra with exceptional resolution. JRES, COSY and HMBC NMR spectra were capable to depict resolved molecular signatures of compounds exceeding a certain minimum abundance. Here, JRES spectra suffered from limited resolution whereas HMBC spectra were constrained because of limited S/N ratio. Hence, COSY NMR spectra appeared best suited to depict organic complexity in marine DOM. The intensity and number of COSY cross peaks was found maximal for sample FMAX and conformed to about 1500 molecules recognizable in variable abundance. Surface DOM (FISH) produced a slightly (~25%) lesser number of cross peaks with remarkable positional accordance to FMAX (~80% conforming COSY cross peaks were found in FISH and FMAX). With increasing water depth, progressive attenuation of COSY cross peaks was caused by fast transverse NMR relaxation of yet unknown origin. However, most of the faint COSY cross peak positions of deep water DOM conformed to those observed in the surface DOM, suggesting the presence of a numerous set of identical molecules throughout the entire ocean column even if the investigated water masses belonged to different oceanic regimes and currents. Aliphatic chemical environments of methylene (CH2) and methyl (CH3) in marine DOM were nicely discriminated in DEPT HSQC NMR spectra. Classical methyl gro

  10. Multistable chain for ocean wave vibration energy harvesting

    NASA Astrophysics Data System (ADS)

    Harne, R. L.; Schoemaker, M. E.; Wang, K. W.

    2014-03-01

    The heaving of ocean waves is a largely untapped, renewable kinetic energy resource. Conversion of this energy into electrical power could integrate with solar technologies to provide for round-the-clock, portable, and mobile energy supplies usable in a wide variety of marine environments. However, the direct drive conversion methodology of gridintegrated wave energy converters does not efficiently scale down to smaller, portable architectures. This research develops an alternative power conversion approach to harness the extraordinarily large heaving displacements and long oscillation periods as an excitation source for an extendible vibration energy harvesting chain. Building upon related research findings and engineering insights, the proposed system joins together a series of dynamic cells through bistable interfaces. Individual impulse events are generated as the inertial mass of each cell is pulled across a region of negative stiffness to induce local snap through dynamics; the oscillating magnetic inertial mass then generates current in a coil which is connected to energy harvesting circuitry. It is shown that linking the cells into a chain transmits impulses through the system leading to cascades of vibration and enhancement of electrical energy conversion from each impulse event. This paper describes the development of the multistable chain and ways in which realistic design challenges were addressed. Numerical modeling and corresponding experiments demonstrate the response of the chain due to slow and large amplitude input motion. Lastly, experimental studies give evidence that energy conversion efficiency of the chain for wave energy conversion is much higher than using an equal number of cells without connections.

  11. Renewable Energy-Aware Manycast Overlays Thilo Schondienst, Dylan A.P. Davis, Jeremy M. Plante, and Vinod M. Vokkarane

    E-print Network

    Vokkarane, Vinod M.

    Renewable Energy-Aware Manycast Overlays Thilo Sch¨ondienst, Dylan A.P. Davis, Jeremy M. Plante that are powered by renewable energy sources: Manycast Drop at Greenest Nodes (MA-DGN). The potential for emission traffic. We assume heterogeneously distributed and time-dependent availability of renewable energy sources

  12. NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy

    E-print Network

    & Renewable Energy Operated by the Alliance for Sustainable Energy, LLC. This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36 Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated

  13. A national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable Energy

    E-print Network

    Energy National Renewable Energy Laboratory Innovation for Our Energy Future Technical Report NREL/TP-670A national laboratory of the U.S. Department of Energy Office of Energy Efficiency & Renewable-43532 August 2008 Renewable Energy Price-Stability Benefits in Utility Green Power Programs Lori A. Bird

  14. Open ocean aquaculture engineering

    Microsoft Academic Search

    K. C. Baldwin; J. D. Irish; B. Celikkol; M. R. Swift; D. Fredriksson; I. Tsukrov; Michael Chambers

    2002-01-01

    The University of New Hampshire, Center for Ocean Engineering (UNH\\/COE) open ocean aquaculture engineering efforts continue to be focused on developing engineering design and analysis tools for assessing, evaluating and optimizing engineering systems required for successful open ocean aquaculture. The methodology presented here was used to develop the mooring\\/cage system for the successful deployment of two Ocean Spar Sea Station

  15. Ocean Currents Lesson

    NSDL National Science Digital Library

    Orzali, Joe

    This hands-on classroom learning unit looks at ocean currents and allows students to "understand, witness, and interact with the properties of water and discover the role of the oceans in the global climate." The surface tension of water, ocean currents and the ocean's connections to climate change are explored in three mini activities. This document may be downloaded in PDF file format.

  16. An Ocean of Weather

    NSDL National Science Digital Library

    In this lesson, students will investigate the close relationship between the ocean and the atmosphere to determine the extent the ocean affects the Earth's weather in the South Atlantic Bight region. As they study this relationship, students will learn that the ocean and atmosphere work together as a system. They will experiment to find out that heat transfer from the ocean is a cause of much of Earth's weather and will make and explain an ocean water cycle.

  17. Ocean optics

    SciTech Connect

    Spinard, R.W.; Carder, K.L.; Perry, M.J.

    1994-12-31

    This volume is the twenty fifth in the series of Oxford Monographs in Geology and Geophysics. The propagation off light in the hydra-atmosphere systems is governed by the integral-differential Radiative Transfer Equation (RTE). Closure and inversion are the most common techniques in optical oceanography to understand the most basic principles of natural variability. Three types of closure are dealt with: scale closure, experimental closure, and instrument closure. The subject is well introduced by Spinard et al. in the Preface while Howard Gordon in Chapter 1 provides an in-depth introduction to the RTE and its inherent problems. Inherent and apparent optical properties are dealt with in Chapter 2 by John Kirk and the realities of optical closure are presented in the following chapter by Ronald Zaneveld. The balance of the papers in this volume is quite varied. The early papers deal in a very mathematical manner with the basics of radiative transfer and the relationship between inherent and optical properties. Polarization of sea water is discussed in a chapter that contains a chronological listing of discoveries in polarization, starting at about 1000 AD with the discovery of dichroic properties of crystals by the Vikings and ending with the demonstration of polarotaxis in certain marine organisms by Waterman in 1972. Chapter 12 on Raman scattering in pure water and the pattern recognition techniques presented in Chapter 13 on the optical effects of large particles may be of relevance to fields outside ocean optics.

  18. Student Outreach With Renewable Energy Technology

    NASA Technical Reports Server (NTRS)

    Clark, Eric B. (Technical Monitor); Buffinger, D.; Fuller, C.; Kalu, A.

    2003-01-01

    The Student Outreach with Renewable Energy Technology (SORET) program is a joint grant that involves a collaboration between three HBCU's (Central State University, Savannah State University, and Wilberforce University) and NASA John H. Glenn Research Center at Lewis Field. The overall goal of the grant is to increase the interest of minority students in the technical disciplines, to encourage participating minority students to continue their undergraduate study in these disciplines, and to promote graduate school to these students. As a part of SORET, Central State University has developed an undergraduate research associates program over the past two years. As part of this program, students are required to take special laboratory courses offered at Wilberforce University that involve the application of renewable energy systems. The course requires the students to design, construct, and install a renewable energy project. In addition to the applied renewable energy course, Central State University provided four undergraduate research associates the opportunity to participate in summer internships at Texas Southern University (Renewable Energy Environmental Protection Program) and the Cleveland African-American Museum (Renewable Energy Summer Camp for High School Students) an activity co sponsored by NASA and the Cleveland African-American Museum. Savannah State University held a high school summer program with a theme of the Direct Impact of Science on Our Every Day Lives. The purpose of the institute was to whet the interest of students in science, mathematics, engineering, and technology (SMET) by demonstrating the effectiveness of science to address real world problems. The 2001 institute involved the design and installation of a PV water pumping system at the Center for Advanced Water Technology and Energy Systems at Savannah State. Both high school students and undergraduates contributed to this project. Wilberforce University has used NASA support to provide resources for an Applied Renewable Energy Laboratory offered to both Central State and Wilberforce students. In addition, research endeavors for high school and undergraduates were funded during the summer. The research involved attempts to layer photovoltaic materials on a conducting polymer (polypyrrole) substrate. Two undergraduate students who were interested in polymer research originated this concept. Finally, the university was able to purchase a meteorological station to assist in the analysis of the solar/wind hybrid power system operating at the university.

  19. Introduction to Alternative and Renewable Energy: Distributed Generation Electricity

    NSDL National Science Digital Library

    This module is intended for use in a college-level introductory course in alternative and renewable energy. The document includes an overview of distributed generation electricity. The main sections covered are centralized power generation, electricity demand management, decentralized power generation and load imbalance mitigation. Many useful graphics are included which provide data on the US power grids, sources of electricity and other related topics. This module may be downloaded in PDF file format.

  20. Gas pipeline renewal

    SciTech Connect

    Ahmad, H.

    1990-01-01

    This book deals with replacement of gas pipelines by insertion of new lines within old ones. This cost-saving method of pipeline renewal will save millions of dollars for pipeline operating companies, especially now that many governments are requiring more rigid maintenance and replacement standards. It explains step-by-step the procedures and practices for policy development and decision- making, economics and risk analysis, manpower assessment, work measurement, as well as pipe sizing and stress calculations. Chapters on cathodic protection and conversion factors are included.

  1. Renewable Energy Opportunity Assessment

    SciTech Connect

    Hancock, E.; Mas, C.

    1998-11-13

    Presently, the US EPA is constructing a new complex at Research Triangle Park, North Carolina to consolidate its research operations in the Raleigh-Durham area. The National Computer Center (NCC) is currently in the design process and is planned for construction as partof this complex. Implementation of the new technologies can be planned as part of the normal construction process, and full credit for elimination of the conventional technologies can be taken. Several renewable technologies are specified in the current plans for the buildings. The objective of this study is to identify measures that are likely to be both technically and economically feasible.

  2. Renewable energy development in China

    SciTech Connect

    Junfeng, Li

    1996-12-31

    This paper presents the resources availability, technologies development and their costs of renewable energies in China and introduces the programs of renewable energies technologies development and their adaptation for rural economic development in China. As the conclusion of this paper, renewable energies technologies are suitable for some rural areas, especially in the remote areas for both household energy and business activities energy demand. The paper looks at issues involving hydropower, wind energy, biomass combustion, geothermal energy, and solar energy.

  3. Screening of generic safety issues for license renewal considerations

    SciTech Connect

    Faramarzi, A.; Hughes, A.A.; Seth, S.S. [Mitre Corp., McLean, VA (United States)

    1991-12-01

    The US Nuclear Regulatory Commission (NRC) is developing regulations for renewing the operating licenses of nuclear power plants to ensure that they operate safely beyond the present license terms of 40 years. One consideration relates to past resolutions of generic safety issues (GSIs) that did not result in backfit requirements on the licensees. The consideration of an additional operating term of 20 years which the proposed license renewal rule allows, could have retrospective implication for the basis of those GSI resolutions. As part of its technical support to the NRC for the development of license renewal regulations. MITRE has performed an independent review of the GSIs to identify those that could be potentially affected by license renewal considerations. This report describes the screening process and the results of that work.

  4. Implications of Regional Transmission Organization Design for Renewable Energy Technologies

    SciTech Connect

    Porter, K.

    2002-05-01

    This report summarizes the development of Regional Transmission Organizations (RTOs) and assesses the potential implications of market rules for renewable energy technologies. The report focuses on scheduling provisions, as these have proved problematic in some cases for intermittent renewable energy technologies. Market rules of four RTOs-the Pennsylvania-Maryland-New Jersey ISO, the ERCOT ISO, the Midwest ISO and the New York ISO (NYISO)-were examined to determine the impact on intermittent renewable energy projects such as wind energy generators. Also, a more general look was taken at how biomass power may fare in RTOs, specifically whether these technologies can participate in ancillary service markets. Lastly, an assessment was made regarding the implications for renewable energy technologies of a Northeast-wide RTO that would combine the three existing Northeast ISOs (the aforementioned PJM and NYISOs, as well as ISO New England).

  5. Quantifying State-Policy Incentives for the Renewable Energy Investor

    SciTech Connect

    Sukumar, Sreenivas R. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Shankar, Mallikarjun [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Olama, Mohammed M. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Hadley, Stanton W. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Protopopescu, Vladimir A. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Malinchik, Sergey [Lockheed Martin Corp., Oak Ridge, TN (United States); Ives, Barry [Lockheed Martin Corp., Oak Ridge, TN (United States)

    2010-01-01

    In this paper, we describe an approach to quantifying renewable energy policy for a decision maker/investor. The novelty of the idea lies in the construction of a computational model - a rule-based system - to interpret state incentives and mandates and evaluate the influence of state policies on renewable energy investment. Using this analysis tool, we are able to understand the bias of some states towards certain renewable technologies and also identify profitable markets for investment - both long and short-term. We also demonstrate how our ability to estimate the expected return of a proposed project in the form of tax credits and incentives, can be leveraged while planning to invest on large renewable power generation projects.

  6. CONSULTANT REPORT EUROPEAN RENEWABLE DISTRIBUTED

    E-print Network

    CONSULTANT REPORT EUROPEAN RENEWABLE DISTRIBUTED distributed electricity generation. As reflected in the California Energy Commission's previous how certain European countries integrate large quantities of intermittent distributed

  7. Wind Power Systems 1. Overview

    E-print Network

    Ding, Yu

    Wind Power Systems 1. Overview 2. Simulation model for wind farm operation 3. Research topics #12;Contents 1. Overview of wind power systems 1.1 Power systems 1.2 Renewable energy 1.3 Wind power systems 1.4 Wind power integration 1.5 Summary 2. Simulation model of wind farm operations 3. Research

  8. Enabling renewable energy—and the future grid—with advanced electricity storage

    Microsoft Academic Search

    Zhenguo Yang; Jun Liu; Suresh Baskaran; Carl H. Imhoff; Jamelyn D. Holladay

    2010-01-01

    Environmental concerns about using fossil fuels, and their resource constraints along with energy security concerns, have\\u000a spurred great interest in generating electrical energy from renewable sources. The variable and stochastic nature of renewable\\u000a sources, however, makes solar and wind power difficult to manage, especially at high levels of penetration. Electrical energy\\u000a storage (EES) is necessary to effectively use intermittent renewable

  9. Reliable solar: powering communities January 30, 2014

    E-print Network

    - 1 - Reliable solar: powering communities January 30, 2014 How to supply communities reliable renewable power on the electric grid. The group converted a county landfill to house two solar with renewable energy without expensive grid fluctuations? Power fluctuations cost the nation about $100 billion

  10. Detailed source term estimation of the atmospheric release for the Fukushima Daiichi Nuclear Power Station accident by coupling simulations of an atmospheric dispersion model with an improved deposition scheme and oceanic dispersion model

    NASA Astrophysics Data System (ADS)

    Katata, G.; Chino, M.; Kobayashi, T.; Terada, H.; Ota, M.; Nagai, H.; Kajino, M.; Draxler, R.; Hort, M. C.; Malo, A.; Torii, T.; Sanada, Y.

    2015-01-01

    Temporal variations in the amount of radionuclides released into the atmosphere during the Fukushima Daiichi Nuclear Power Station (FNPS1) accident and their atmospheric and marine dispersion are essential to evaluate the environmental impacts and resultant radiological doses to the public. In this paper, we estimate the detailed atmospheric releases during the accident using a reverse estimation method which calculates the release rates of radionuclides by comparing measurements of air concentration of a radionuclide or its dose rate in the environment with the ones calculated by atmospheric and oceanic transport, dispersion and deposition models. The atmospheric and oceanic models used are WSPEEDI-II (Worldwide version of System for Prediction of Environmental Emergency Dose Information) and SEA-GEARN-FDM (Finite difference oceanic dispersion model), both developed by the authors. A sophisticated deposition scheme, which deals with dry and fog-water depositions, cloud condensation nuclei (CCN) activation, and subsequent wet scavenging due to mixed-phase cloud microphysics (in-cloud scavenging) for radioactive iodine gas (I2 and CH3I) and other particles (CsI, Cs, and Te), was incorporated into WSPEEDI-II to improve the surface deposition calculations. The results revealed that the major releases of radionuclides due to the FNPS1 accident occurred in the following periods during March 2011: the afternoon of 12 March due to the wet venting and hydrogen explosion at Unit 1, midnight of 14 March when the SRV (safety relief valve) was opened three times at Unit 2, the morning and night of 15 March, and the morning of 16 March. According to the simulation results, the highest radioactive contamination areas around FNPS1 were created from 15 to 16 March by complicated interactions among rainfall, plume movements, and the temporal variation of release rates. The simulation by WSPEEDI-II using the new source term reproduced the local and regional patterns of cumulative surface deposition of total 131I and 137Cs and air dose rate obtained by airborne surveys. The new source term was also tested using three atmospheric dispersion models (Modèle Lagrangien de Dispersion de Particules d'ordre zéro: MLDP0, Hybrid Single Particle Lagrangian Integrated Trajectory Model: HYSPLIT, and Met Office's Numerical Atmospheric-dispersion Modelling Environment: NAME) for regional and global calculations, and the calculated results showed good agreement with observed air concentration and surface deposition of 137Cs in eastern Japan.

  11. Ecosystem model-based approach for modelling the dynamics of 137Cs transfer to marine plankton populations: application to the western North Pacific Ocean after the Fukushima nuclear power plant accident

    NASA Astrophysics Data System (ADS)

    Belharet, M.; Estournel, C.; Charmasson, S.

    2015-06-01

    Huge amounts of radionuclides, especially 137Cs, were released into the western North Pacific Ocean after the Fukushima nuclear power plant (FNPP) accident that occurred on 11 March 2011, resulting in contamination of the marine biota. In this study we developed a radioecological model to estimate 137Cs concentrations in phytoplankton and zooplankton populations representing the lower levels of the pelagic trophic chain. We coupled this model to a lower trophic level ecosystem model and an ocean circulation model to take into account the site-specific environmental conditions in the area. The different radioecological parameters of the model were estimated by calibration, and a sensitivity analysis to parameter uncertainties was carried out, showing a high sensitivity of the model results, especially to the 137Cs concentration in seawater, to the rates of uptake from water and to the radionuclide assimilation efficiency for zooplankton. The results of the 137Cs concentrations in planktonic populations simulated in this study were then validated through comparison with the some data available in the region after the accident. The model results have shown that the maximum concentrations in plankton after the accident were about two to four orders of magnitude higher than those observed before the accident depending on the distance from FNPP. Finally, the maximum 137Cs absorbed dose rate for phyto- and zooplankton populations was estimated to be about 10-2 ?Gy h-1, and was, therefore, lower than the 10 ?Gy h-1 benchmark value defined in the ERICA assessment approach from which a measurable effect on the marine biota can be observed.

  12. A New High Resolution Wave Modeling System for Renewable Energy Applications in California and the Mediterranean Sea

    NASA Astrophysics Data System (ADS)

    Galanis, G. N.; Kafatos, M.; Chu, P. C.; Hatzopoulos, N.; Emmanouil, G.; Kallos, G. B.

    2014-12-01

    The use of integrated high accuracy wave systems is of critical importance today for applications on renewable energy assessment and monitoring, especially over offshore areas where the availability of credible, quality controlled corresponding observations is limited. In this work a new wave modeling system developed by the Hellenic Naval Academy and the University of Athens, Greece, the Center of Excellence in Earth Systems Modeling & Observations of Schmid College of Science in Chapman University, USA and the Naval Ocean and Analysis Laboratory of the US-Naval Postgraduate School, is presented. The new wave system has been based on WAM (ECMWF parallel version) model and focuses on parameters that directly or not affect the estimation of wave power potential in offshore and near shore areas. The results obtained are utilized for monitoring the wave energy potential over the California and Eastern Mediterranean coastline. A detailed statistical analysis based on classical and non-conventional measures provides a solid framework for the quantification of the results. Extreme values-cases posing potential threats for renewable energy parks and platforms are particularly analyzed.

  13. Best Practices for Siting Solar Photovoltaics on Municipal Solid Waste Landfills. A Study Prepared in Partnership with the Environmental Protection Agency for the RE-Powering America's Land Initiative: Siting Renewable Energy on Potentially Contaminated Land and Mine Sites

    SciTech Connect

    Kiatreungwattana, K.; Mosey, G.; Jones-Johnson, S.; Dufficy, C.; Bourg, J.; Conroy, A.; Keenan, M.; Michaud, W.; Brown, K.

    2013-04-01

    The Environmental Protection Agency and the National Renewable Energy Laboratory developed this best practices document to address common technical challenges for siting solar photovoltaics (PV) on municipal solid waste (MSW) landfills. The purpose of this document is to promote the use of MSW landfills for solar energy systems. Closed landfills and portions of active landfills with closed cells represent thousands of acres of property that may be suitable for siting solar photovoltaics (PV). These closed landfills may be suitable for near-term construction, making these sites strong candidate to take advantage of the 30% Federal Business Energy Investment Tax Credit. It was prepared in response to the increasing interest in siting renewable energy on landfills from solar developers; landfill owners; and federal, state, and local governments. It contains examples of solar PV projects on landfills and technical considerations and best practices that were gathered from examining the implementation of several of these projects.

  14. Mixing by ocean eddies

    E-print Network

    Abernathey, Ryan (Ryan Patrick)

    2012-01-01

    Mesoscale eddies mix and transport tracers such as heat and potential vorticity laterally in the ocean. While this transport plays an important role in the climate system, especially in the Southern Ocean, we lack a, ...

  15. Oceanic Food Web

    NSDL National Science Digital Library

    Office of Biological and Environmental Research of the U.S. Department of Energy Office of Science

    This visualization illustrates the carbon cycle throughout the oceanic zones, beginning at the surface and traveling to the deep. The concept map-like connections encourage students to link the abiotic and biotic interactions within the oceanic food web.

  16. Ocean Water: Density

    NSDL National Science Digital Library

    This site explains how temperature, pressure, and salinity work together to determine the density of ocean water. The three density layers of the ocean are described by means of text description and a graphic illustration.

  17. Harvesting the Ocean: 1. The Ocean.

    ERIC Educational Resources Information Center

    Caton, Albert, Ed.; And Others

    This booklet is the first in a series of three interdisciplinary units which focus specifically on the Pacific Ocean and its surrounding countries. The booklet, designed for lower secondary students, provides an introduction to the ocean environment such that students can understand the physical factors underlying issues raised by the other two…

  18. Ocean Planet: Rough Planet Earth without Ocean

    NSDL National Science Digital Library

    Dave Pape

    1994-04-29

    The Ocean Planet is a traveling exhibition from the Smithsonian Institution which opened in Washington DC on April 22, 1995. A part of the exhibition was a computer flyby of the Pacific Ocean developed in the SVS. This animation represents a stage in the development of that flyby.

  19. Solution nebulization into a low-power argon microwave-induced plasma for atomic emission spectrometry: study of synthetic ocean water

    Microsoft Academic Search

    Kin C. Ng; Wei Lung. Shen

    1986-01-01

    A MAK nebulizer is used to introduce liquid aerosols containing Cr, Mn, In, V, Pb, Sr, or Zr into a low-power (105-115 W), low argon flow (537 mL\\/min) microwave-induced plasma for atomic emission spectrometry. Detection limits (3sigma) in 3% nitric acid water samples are at the parts-per-billion level (62, 18, 18, 91, 139, 13, and 3945, respectively). These values compared

  20. Replace / Renewal BUDGET ZZ106

    E-print Network

    . ______________________________________________________________________________________________________ Signature of Certified Food Manager Date Print Name Revised 05/21/2008 #12;Replace / Renewal BUDGET ZZ106 FUND: 126 CERTIFIED FOOD MANAGER CERTIFICATE RENEWAL Services, RLU, P.O. Box 149347, - MC2003, Austin, TX 78714-9347 Telephone: (512) 834-6727, Fax: (512) 834