Hydroelectric generators are among the United Statesâ oldest power plants">Hydroelectric generators are among the United Statesâ oldest power plants
(Mon, 13 Mar 2017) Conventional hydroelectric generators account for 7% of the operating electricity generating capacity in the United States and about 6% to 7% of U.S. electricity generation each year. Conventional hydroelectric plants are different from pumped-storage facilities, which produce electricity from water previously pumped to an upper reservoir.
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