Hydroelectricity is mostly used for electricity production in the United States and in 2019 there were 1,460 utility scale hydropower facilities. These produced 274 billion kilowatthours. In 2019, it accounted for 6.6% of total electricity production and 38% of renewable electricity. The amount of electricity in the United States from hydropower has remained relatively the same since the 70's, however it's percentage has decreased due to more production from other sources. In 1950, 30% of total electricity production came from hydropower despite only 101 billion kilowatthours being produced.