- DSIRE Database of State Incentives for Renewables & Efficiency, a source of information on state, local, utility and federal incentives and policies that promote renewable energy and energy efficiency.
- United State Department of Energy, Solar Energy Technologies Program, which gives more information about cost-effective solar technologies that have the greatest potential to benefit the nation and the world.
- United States Department of Energy, Wind Powering America, which gives information about wind power, and a wind resource map for Virginia.
