Which state receives the greatest percentage of electricity from hydro power?
South Dakota enjoys the highest percentage of hydro in its generation mix, and at more than 4 million MWh, the state produced nearly 40 of its electricity from hydro facilities in 2013.
What state has the cleanest energy?
Washington is the number one state for renewable energy, with a total installed capacity of 23.884 gigawatts (GW).
How efficient is hydroelectricity?
Converting over 90% of available energy into electricity, hydropower is the most efficient source of electrical energy. By comparison, the best fossil fuel power plants operate at approximately 60% efficiency. Hydropower facilities have a very long service life, which can be extended indefinitely, and further improved.