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These systems pump water to higher elevation when electricity demand is low so they can use the water to generate electricity during periods of high demand. Pumped storage hydropower represents the largest share of global energy storage capacity today but https:\/\/northfloridahouse.com\/personalized-learning-the-future-of-adaptive-education.html<\/a> is only growing modestly relative to battery storage. In 2022, hydroelectricity accounted for about 6.2% of total U.S. utility-scale1 electricity generation and 28.7% of total utility-scale renewable electricity generation. Hydroelectricity generation varies annually, and it’s share of total U.S. electricity generation generally decreased from the 1950’s through 2020, mainly because of increases in electricity generation from other sources. Hydropower was one of the first sources of energy used for electricity generation and is usually the largest single renewable energy source of annual electricity generation in the United States.<\/p>\n<\/p>\n