South Dakota, where hydroelectricity and wind were the most prevalent sources, is the third state. Wind was the biggest renewable power source in 16 states while solar was the biggest in 28 states, according to EIA ( EIA ). Hydroelectricity remains the US 's largest renewable power source overall, accounting for 7% of national electricity generation last year . the US Energy Information Administration was the largest source of renewable electricity generation in 19 US states just 10 years ago , down from 19 just 10 years ago , the EIA said.
Wind was the biggest renewable power source in 16 states while solar was the biggest in 28 states, according to EIA ( EIA ). Hydroelectricity remains the US 's largest renewable power source overall, accounting for 7% of national electricity generation last year . the US Energy Information Administration was the largest source of renewable electricity generation in 19 US states just 10 years ago , down from 19 just 10 years ago , the EIA said.