This is a list of operational hydroelectric power stations in the United States with a current nameplate capacity of at least 100 MW.

The Hoover Dam in Arizona and Nevada was the first hydroelectric power station in the United States to have a capacity of at least 1,000 MW upon completion in 1936. Since then numerous other hydroelectric power stations have surpassed the 1,000 MW threshold, most often through the expansion of existing hydroelectric facilities. All but two states of the United States are home to at least one hydroelectric power station; those without being Delaware and Mississippi.

List of power stations Name State Coordinates Capacity(MW) Annual generation(GWh) Owner Type Bad Creek 1,064 Duke Energy Pumped-storage Bartletts Ferry 173 624 (2020) Georgia Power Reservoir Bath County 3,003 -983 (2018) Dominion Energy (60%)Bath County Energy (24%)Allegheny Energy (16%) Pumped-storage Bear Swamp 600 -164 (2019) National Grid Pumped-storage Big Bend 494 (2018) U.S. Army Corps of Engineers Reservoir Big Creek1,050Southern California EdisonPumped-storage Blenheim–Gilboa 1,134 New York Power Authority Pumped-storage Bonneville 1,227 4,860 (2018) U.S. Army Corps of Engineers Run-of-the-river Boundary 1,003 4,004 (2018) Seattle City Light Reservoir Brownlee 585 (2018) Idaho Power Reservoir Bull Shoals 391 (2022) U.S. Army Corps of Engineers Reservoir Carters 600 U.S. Army Corps of Engineers Pumped-storage Castaic 1,500 (2018) CDWR (50%)LADWP (50%) Pumped-storage Chief Joseph 2,620 12,352 (2018) U.S. Army Corps of Engineers Run-of-the-river Comerford165.9417 (2019)Great River Hydro Conowingo 548 (2018) Exelon Run-of-the-river 1,813 7,161 (2018) U.S. Army Corps of Engineers Run-of-the-river Davis Dam 255 (2018) U.S. Bureau of Reclamation Reservoir Devil Canyon Project 276.2 (2018) CDWR Reservoir Diablo 129 689.4 (2009) Seattle City Light Reservoir Dworshak 400 (2018) U.S. Army Corps of Engineers Reservoir Fontana 304 (2018) Tennessee Valley Authority Reservoir Fort Randall 320 (2018) U.S. Army Corps of Engineers Reservoir Garrison 614 (2018) U.S. Army Corps of Engineers Reservoir Glen Canyon 1,320 3,959 (2018) U.S. Bureau of Reclamation Reservoir Gorge 199.2 Seattle City Light Reservoir Grand Coulee 6,809 21,043 (2018) U.S. Bureau of Reclamation Reservoir (95.4%)Pumped-storage (4.6%) Great Lakes Hydro138723 (2019)Great Lakes Hydro America Hartwell 421 U.S. Army Corps of Engineers Reservoir Hells Canyon 391.5 (2018) Idaho Power Company Reservoir Helms 1,212 -413 (2018) PG&E Pumped-storage Hoover 2,080 3,542 (2018) U.S. Bureau of Reclamation Reservoir Hungry Horse 428 (2018) U.S. Bureau of Reclamation Reservoir Ice Harbor 603 1,711 (2018) U.S. Army Corps of Engineers Run-of-the-river J. Strom Thurmond 380 U.S. Army Corps of Engineers Reservoir Jocassee 710 Duke Energy Pumped-storage John Day 2,160 9,193 (2018) U.S. Army Corps of Engineers Run-of-the-river Lay 177 (2022) Alabama Power Reservoir Lewis Smith 181 (2024) Alabama Power Reservoir Libby 600 (2018) U.S. Army Corps of Engineers Reservoir Little Goose 810 2,452 (2018) U.S. Army Corps of Engineers Run-of-the-river Lower Baker 111 Puget Sound Energy Reservoir Lower Granite 810 2,467 (2018) U.S. Army Corps of Engineers Run-of-the-river Lower Monumental 810 2,383 (2018) U.S. Army Corps of Engineers Run-of-the-river Ludington 2,172 -698 (2018) Consumers Energy (51%)DTE Electric (49%) Pumped-storage Martin 211 (2021) Alabama Power Reservoir McNary 986 (2018) U.S. Army Corps of Engineers Run-of-the-river Mossyrock 378.4 (2018) Tacoma Power Reservoir Muddy Run 1,072 Exelon Pumped-storage New Bullards Bar 315 (2018) Yuba County Water Agency Reservoir New Melones 300 (2012) U.S. Bureau of Reclamation Reservoir <ref name="CEC" / Northfield Mountain 1,168 -273 (2019) FirstLight Pumped-storage Noxon Rapids 527 (2018) Avista Reservoir Oahe 786 (2018) U.S. Army Corps of Engineers Reservoir Oroville 644 (2018) CDWR Reservoir Priest Rapids 955 4,737 (2018) Grant County PUD Reservoir Raccoon Mountain 1,616 -620 (2018) Tennessee Valley Authority Pumped-storage Richard B. Russell 600 U.S. Army Corps of Engineers Pumped-storage Robert Moses Niagara 2,675 16,773 (2018) New York Power Authority Reservoir Rock Island 622.5 2,652 (2018) Chelan County PUD Reservoir Rocky Mountain 1,095 Oglethorpe Power (75%)Georgia Power (25%) Pumped-storage Rocky Reach 1,347 6,287 (2018) Chelan County PUD Reservoir Ross 460 619.12 (2018) Seattle City Light Reservoir Round Butte 367 (2018) Portland General Electric Reservoir Safe Harbor 422.5 SHWP Reservoir Salina 259 -135 (2018) Grand River Dam Authority Pumped-storage Wagman, David. Power Engineering. "Salina Pumped Storage Project." May 1, 2006. Retrieved September 17, 2011.S. C. Moore190.8336 (2019)Great River Hydro Seneca 435 LS Power Pumped-storage Shasta 714 (2018) U.S. Bureau of Reclamation Reservoir SKQ 208 1,100 (2024) Confederated Salish and Kootenai Tribes Reservoir Smith Mountain 560 American Electric Power Pumped-storage 912 (2018)New York Power AuthorityReservoir Swift 240 519.481 PacifiCorp Reservoir Taum Sauk 450 Ameren Missouri Pumped-storage Upper Baker 107 Puget Sound Energy Reservoir Walter Bouldin225555 (2020)Alabama PowerReservoir Wanapum 1,185 5,338 (2018) Grant County PUD Reservoir Wells 774 4,439 (2018) Douglas County PUD Reservoir Wheeler 402 (2018) Tennessee Valley Authority Reservoir White Rock 266.5 (2018) SMUD Reservoir William R. Gianelli 424 -126 (2018) CDWRU.S. Bureau of Reclamation Pumped-storage Wilson 653 (2018) Tennessee Valley Authority Reservoir Wolf Creek 270 U.S. Army Corps of Engineers Reservoir Yale 134 PacifiCorp Reservoir Yards Creek 453 -115 (2018) FirstEnergyPSEG Pumped-storage flaming gorgeUtah 40°54′52″N 109°25′17″W152reservoir Parker damarizona120457Reservoir Saint Marys Falls Hydropower PlantMichigan46°29′51″N 84°19′56″W36225Cloverland Electric CooperativeRun-of-the-river

Under construction This is a list of hydroelectric power stations under construction with an expected nameplate capacity of at least 100 MW. Name State Coordinates Capacity(MW) Annual generation(GWh) Owner Type Gordon Butte 400 Absaroka Energy Pumped-storage

See also List of power stations in the United States by type List of pumped-storage hydroelectric power stations List of hydroelectric power stations in Canada

References

External links