What is Renewable Energy?

To be considered renewable energy, a resource must rely on naturally existing energy flows such as sunshine, wind and water flowing. The energy source, or “fuel”, must be replaced by natural processes at a rate that is equal to, or faster than, the rate at which the energy source is consumed.

Renewable resources can have inherent and varying technological, environmental, social, and economic benefits. Currently, renewable energy accounts for roughly 2.3% of the United States energy supply. EPA’s Green Power Partnership recognizes solar, biomass, geothermal, wind and low-impact hydro as eligible green power resources due to their respective environmental benefits and expressed consumer preference in voluntary green power markets.

-- The Envionmental Protection Agency