The United States Environmental Protection Agency’s Green Power Partnership is a voluntary program that supports the organization of green power by providing expert advice, technical support, tools and resources. Green Power Partnership provides public health and environmental benefits by expanding US renewable energy markets through the voluntary use of green power. The EPA defines ‘green power’ as a subset of renewable energy and ‘represents those renewable energy resources and technologies that provide the highest environmental benefits’, with electricity produced from solar, wind, geothermal, biogas, biomass, and low-impact small hydroelectric sources listed as types of green power. Key program elements include:

Green Power Communities are defined by the United States Environmental Protection Agency (EPA) as “towns, villages, cities, counties, or tribal governments in which the local government, businesses, and residents collectively buy green power. Power Community purchase requirements. ”