U.S. Department of Energy – Energy Efficiency and Renewable Energy (EERE)

The US DOE Energy Efficiency and Renewable Energy Web site provides information on energy efficiency and renewable energy technologies.

National Renewable Energy Laboratory (NREL)

The National Renewable Energy Laboratory’s Photovoltaic research is focused on decreasing the nation’s reliance on fossil-fuel generated electricity by lowering the costs of delivered electricity and Improving the efficiency of PV modules and systems.

Solarbuzz.com

Daily solar energy news, solar panel price surveys, PV industry statistics, photovoltaic companies and installers.

Solar Industry Magazine

An electronic and print magazine serving professionals involved in all aspects of the Solar Industry.

Interstate Renewable energy Council (IREC)

The IREC is a non-profit organization dedicated to moving renewable energy resources into the marketplace.

The North Carolina Solar Center

The North Carolina Solar Center serves as a clearinghouse for solar and other renewable energy programs, information, research, technical assistance and training for the citizens of North Carolina and beyond.

German Advisory Council on Global Change

The German federal government set up WBGU as an independent, scientific advisory body in 1992 in the run-up to the Rio Earth Summit.