Hydropower, or hydroelectric power, is the most common and least expensive source of renewable electricity in the United States today. According to the Energy Information Administration, more than 6% of the country's electricity was produced from hydropower resources in 2008, and about 70% of all renewable electricity generated in the United States came from hydropower resources.
Hydropower technologies use flowing water to create energy that can be captured and turned into electricity. Both large and small-scale power producers can use hydropower technologies to produce clean electricity.
Learn more about: