C:
Center for Basic Sciences - Research to improve our understanding of the science behind renewable energy and energy-efficient technologies [Department of Energy (DOE), National Renewable Energy Laboratory (NREL)]

Clean Energy - [Environmental Protection Agency (EPA)]

M:
Measurements and Characterization Division at NREL - Provides characterization support, collaborative research, and the development of new measurement techniques for the advancement of the photovoltaic (PV) generation of energy [Department of Energy (DOE), National Renewable Energy Laboratory (NREL)]

N:
National Center for Photovoltaics (NCPV) - Creates, develops, and deploys photovoltaic and related technologies [Department of Energy (DOE), National Renewable Energy Laboratory (NREL)]

P:
Photovoltaic Laboratories - A user facility that offers photovoltaic fabrication, measurement, and system evaluation [Department of Energy (DOE), Sandia National Laboratories (SNL)]

R:
Renewable Resources Maps and Data (NREL) - Provides high-quality renewable energy resource data for U.S. and international locations [Department of Energy (DOE), National Renewable Energy Laboratory (NREL)]

S:
Solar Energy Technologies Program - Focuses on developing cost-effective solar energy technologies that have the greatest potential to benefit the nation and the world. [Department of Energy (DOE), Energy Efficiency and Renewable Energy (EERE)]