List of hydroelectric power stations in the United States

Grand Coulee Dam, the largest hydroelectric power station in North America.

Main article: Hydroelectric power in the United States

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. ^[1]

List of power stations

Name	State	Coordinates	Capacity (MW)	Annual Generation (GWh)	Owner	Type	Ref
Bad Creek	South Carolina	35°00′24″N82°59′40″W / 35.00667°N 82.99444°W / 35.00667; -82.99444 (Bad Creek Pumped Storage)	1,064		Duke Energy	Pumped-storage
Bath County	Virginia	38°13′50″N79°49′10″W / 38.23056°N 79.81944°W / 38.23056; -79.81944 (Bath County Pumped Storage)	3,003	-983 (2018)	Dominion Energy (60%) Bath County Energy (24%) Allegheny Energy (16%)	Pumped-storage	[2] [3]
Bear Swamp	Massachusetts	42°41′06″N72°58′36″W / 42.68500°N 72.97667°W / 42.68500; -72.97667 (Bear Swamp Pumped Storage)	600	-164 (2019)	National Grid	Pumped-storage	[4] [5]
Big Bend	South Dakota	44°02′58″N99°26′55″W / 44.04947°N 99.44859°W / 44.04947; -99.44859 (Big Bend Dam)	494	1,193(2018)	U.S. Army Corps of Engineers	Reservoir	[6]
Blenheim–Gilboa	New York	42°27′18″N74°27′29″W / 42.45500°N 74.45806°W / 42.45500; -74.45806 (Blenheim–Gilboa Pumped Storage)	1,134		New York Power Authority	Pumped-storage
Bonneville	Oregon   Washington	45°38′39″N121°56′26″W / 45.64417°N 121.94056°W / 45.64417; -121.94056 (Bonneville Dam)	1,227	4,860 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[7] [8] [9]
Boundary	Washington	48°59′14″N117°20′51″W / 48.98722°N 117.34750°W / 48.98722; -117.34750 (Boundary Dam)	1,003	4,004 (2018)	Seattle City Light	Reservoir	[10] [11]
Brownlee	Idaho   Oregon	44°50′10″N116°54′00″W / 44.836°N 116.9°W / 44.836; -116.9 (Brownlee Dam)	585	2,419(2018)	Idaho Power	Reservoir	[12] [13]
Bull Shoals	Arkansas	36°21′58″N92°34′29″W / 36.36611°N 92.57472°W / 36.36611; -92.57472 (Bull Shoals Dam)	340	623(2018)	U.S. Army Corps of Engineers	Reservoir	[14]
Carters	Georgia	34°36′55″N84°40′26″W / 34.6154°N 84.6739°W / 34.6154; -84.6739 (Carters Dam)	600		U.S. Army Corps of Engineers	Pumped-storage	[15]
Castaic	California	34°35′14″N118°39′24″W / 34.58722°N 118.65667°W / 34.58722; -118.65667 (Castaic Pumped Storage)	1,500	232(2018)	CDWR (50%) LADWP (50%)	Pumped-storage	[16] [17]
Chief Joseph	Washington	47°59′43″N119°38′00″W / 47.99528°N 119.63333°W / 47.99528; -119.63333 (Chief Joseph Dam)	2,620	12,352 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[18] [19]
Comerford	New Hampshire		165.9	417 (2019)	Great River Hydro		[20] [21]
Conowingo	Maryland	39°39′36″N76°10′26″W / 39.66000°N 76.17389°W / 39.66000; -76.17389 (Conowingo Dam)	548	2,788(2018)	Exelon	Run-of-the-river	[22]
The Dalles	Oregon   Washington	45°36′44″N121°08′04″W / 45.61222°N 121.13444°W / 45.61222; -121.13444 (The Dalles Dam)	1,813	7,161 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[23] [24]
Davis Dam	Arizona   Nevada	35°11′56″N114°34′10″W / 35.19889°N 114.56944°W / 35.19889; -114.56944 (Davis Dam)	255	1,103(2018)	U.S. Bureau of Reclamation	Reservoir	[25]
Devil Canyon Project	California	34°12′20″N117°20′05″W / 34.20556°N 117.33472°W / 34.20556; -117.33472 (Devil Canyon Project)	276.2	787(2018)	CDWR	Reservoir	[26]
Dworshak	Idaho	46°30′54″N116°17′46″W / 46.515°N 116.296°W / 46.515; -116.296 (Dworshak Dam)	400	1,598(2018)	U.S. Army Corps of Engineers	Reservoir	[27] [28]
Fontana	North Carolina	35°27′8″N83°48′17″W / 35.45222°N 83.80472°W / 35.45222; -83.80472 (Fontana Dam)	304	1,151(2018)	Tennessee Valley Authority	Reservoir	[29] [30]
Fort Randall	South Dakota	43°04′00″N98°33′14″W / 43.06672°N 98.5539°W / 43.06672; -98.5539 (Fort Randall Dam)	320	1,725(2018)	U.S. Army Corps of Engineers	Reservoir	[31] [32]
Garrison	North Dakota	47°29′55″N101°24′43″W / 47.49861°N 101.41194°W / 47.49861; -101.41194 (Garrison Dam)	614	3,180(2018)	U.S. Army Corps of Engineers	Reservoir	[33]
Glen Canyon	Arizona	36°56′15″N111°29′04″W / 36.93750°N 111.48444°W / 36.93750; -111.48444 (Glen Canyon Dam)	1,320	3,959 (2018)	U.S. Bureau of Reclamation	Reservoir	[34]
Grand Coulee	Washington	47°57′21″N118°58′54″W / 47.95583°N 118.98167°W / 47.95583; -118.98167 (Grand Coulee Dam)	6,809	21,043 (2018)	U.S. Bureau of Reclamation	Reservoir (95.4%) Pumped-storage (4.6%)	[35] [36]
Great Lakes Hydro	Maine		138	723 (2019)	Great Lakes Hydro America		[37] [38]
Hartwell	Georgia	34°21′28″N82°49′17″W / 34.35778°N 82.82139°W / 34.35778; -82.82139 (Hartwell Dam)	421		U.S. Army Corps of Engineers	Reservoir
Hells Canyon	Idaho   Oregon	45°14′41″N116°41′54″W / 45.24472°N 116.69833°W / 45.24472; -116.69833 (Hells Canyon Dam)	391.5	2,195(2018)	Idaho Power Company	Reservoir	[39] [40]
Helms	California	37°02′13″N118°57′53″W / 37.03694°N 118.96472°W / 37.03694; -118.96472 (Helms Pumped Storage)	1,212	-413 (2018)	PG&E	Pumped-storage	[41] [42]
Hoover	Arizona   Nevada	36°0′56″N114°44′16″W / 36.01556°N 114.73778°W / 36.01556; -114.73778 (Hoover Dam)	2,080	3,542 (2018)	U.S. Bureau of Reclamation	Reservoir	[43] [44] [45]
Hungry Horse	Montana	48°20′28″N114°00′50″W / 48.341°N 114.014°W / 48.341; -114.014 (Hungry Horse Dam)	428	999(2018)	U.S. Bureau of Reclamation	Reservoir	[46] [47]
Ice Harbor	Washington	46°14′58″N118°52′47″W / 46.24958°N 118.87972°W / 46.24958; -118.87972 (Ice Harbor Dam)	603	1,711 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[48] [49]
J. Strom Thurmond	Georgia	33°39′39″N82°11′59″W / 33.66083°N 82.19972°W / 33.66083; -82.19972 (J. Strom Thurmond Dam)	380		U.S. Army Corps of Engineers	Reservoir
Jocassee	South Carolina	34°0′57″N82°55′05″W / 34.01583°N 82.91806°W / 34.01583; -82.91806 (Jocassee Dam)	710		Duke Energy	Pumped-storage	[50]
John Day	Oregon   Washington	45°42′59″N120°41′40″W / 45.71639°N 120.69444°W / 45.71639; -120.69444 (John Day Dam)	2,160	9,193 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[51] [52]
Libby	Montana	48°24′36″N115°18′50″W / 48.41°N 115.314°W / 48.41; -115.314 (Libby Dam)	600	2,056(2018)	U.S. Army Corps of Engineers	Reservoir	[53] [54]
Little Goose	Washington	46°35′15″N118°01′34″W / 46.58737°N 118.02606°W / 46.58737; -118.02606 (Little Goose Dam)	810	2,452 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[55] [56]
Lower Granite	Washington	46°39′38″N117°25′41″W / 46.66056°N 117.42806°W / 46.66056; -117.42806 (Lower Granite Dam)	810	2,467 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[57] [58]
Lower Monumental	Washington	46°33′47″N118°32′20″W / 46.563°N 118.539°W / 46.563; -118.539 (Lower Monumental Dam)	810	2,383 (2018)	U.S. Army Corps of Engineers	Run-of-the-river	[59] [60]
Ludington	Michigan	43°53′37″N86°26′43″W / 43.89361°N 86.44528°W / 43.89361; -86.44528 (Ludington Pumped Storage)	2,172	-698 (2018)	Consumers Energy (51%) DTE Electric (49%)	Pumped-storage	[61] [62]
McNary	Oregon   Washington	45°55′47″N119°17′46″W / 45.92972°N 119.29611°W / 45.92972; -119.29611 (McNary Dam)	986	69(2018)	U.S. Army Corps of Engineers	Run-of-the-river	[63] [64]
Mossyrock	Washington	46°32′04″N122°25′29″W / 46.53444°N 122.42472°W / 46.53444; -122.42472 (Mossyrock Dam)	378.4	908(2018)	Tacoma Power	Reservoir	[65] [66]
Muddy Run	Pennsylvania	39°50′49″N76°17′29″W / 39.847024°N 76.291462°W / 39.847024; -76.291462 (Muddy Run Pumped Storage)	1,072		Exelon	Pumped-storage
New Bullards Bar	California	39°23′36″N121°08′35″W / 39.39333°N 121.14306°W / 39.39333; -121.14306 (New Bullards Bar Dam)	315	1,091(2018)	Yuba County Water Agency	Reservoir	[67] [68]
New Melones	California	37°56′50″N120°31′41″W / 37.94722°N 120.52806°W / 37.94722; -120.52806 (New Melones Dam)	300	418(2012)	U.S. Bureau of Reclamation	Reservoir	[69] [70]
Northfield Mountain	Massachusetts	42°36′39″N72°28′17″W / 42.61083°N 72.47139°W / 42.61083; -72.47139 (Northfield Mountain)	1,168	-273 (2019)	FirstLight	Pumped-storage	[71] [72] [73]
Noxon Rapids	Montana	47°57′39″N115°44′01″W / 47.96083°N 115.73361°W / 47.96083; -115.73361 (Noxon Rapids Dam)	527	1,841(2018)	Avista	Reservoir	[74] [75]
Oahe	South Dakota	44°27′07″N100°23′57″W / 44.45194°N 100.39917°W / 44.45194; -100.39917 (Oahe Dam)	786	3,346(2018)	U.S. Army Corps of Engineers	Reservoir	[76]
Oroville	California	39°32′20″N121°29′08″W / 39.53889°N 121.48556°W / 39.53889; -121.48556 (Oroville Dam)	644	1,291(2018)	CDWR	Reservoir	[77]
Priest Rapids	Washington	46°38′35″N119°54′34″W / 46.64319°N 119.90949°W / 46.64319; -119.90949 (Priest Rapids Dam)	955	4,737 (2018)	Grant County PUD	Reservoir	[78] [79]
Raccoon Mountain	Tennessee	35°2′54″N85°23′48″W / 35.04833°N 85.39667°W / 35.04833; -85.39667 (Raccoon Mountain Pumped Storage)	1,616	-620 (2018)	Tennessee Valley Authority	Pumped-storage	[80] [81]
Richard B. Russell	Georgia   South Carolina	34°01′30″N82°35′39″W / 34.02500°N 82.59417°W / 34.02500; -82.59417 (Richard B. Russell Dam)	600		U.S. Army Corps of Engineers	Pumped-storage
Robert Moses Niagara	New York	43°08′35″N79°02′23″W / 43.14306°N 79.03972°W / 43.14306; -79.03972 (Robert Moses Niagara)	2,675	16,773 (2018)	New York Power Authority	Reservoir	[82]
Rock Island	Washington	47°20′32″N120°05′41″W / 47.34216°N 120.09477°W / 47.34216; -120.09477 (Rock Island Dam)	622.5	2,652 (2018)	Chelan County PUD	Reservoir	[83] [84]
Rocky Mountain	Georgia	34°21′20″N85°18′14″W / 34.35556°N 85.30389°W / 34.35556; -85.30389 (Rocky Mountain Pumped Storage)	1,095		Oglethorpe Power (75%) Georgia Power (25%)	Pumped-storage
Rocky Reach	Washington	47°32′00″N120°17′44″W / 47.53333°N 120.29556°W / 47.53333; -120.29556 (Rocky Reach Dam)	1,347	6,287 (2018)	Chelan County PUD	Reservoir	[85] [86]
Round Butte	Oregon	44°36′11″N121°16′40″W / 44.60306°N 121.27778°W / 44.60306; -121.27778 (Round Butte Dam)	367	835(2018)	Portland General Electric	Reservoir	[87]
Safe Harbor	Pennsylvania	39°55′14″N76°23′33″W / 39.92056°N 76.39250°W / 39.92056; -76.39250 (Safe Harbor Dam)	422.5		SHWP	Reservoir
Salina	Oklahoma	36°15′55″N95°06′15″W / 36.26528°N 95.10417°W / 36.26528; -95.10417 (Salina Pumped Storage)	259	-135 (2018)	Grand River Dam Authority	Pumped-storage	[88] [89]
S. C. Moore	New Hampshire		190.8	336 (2019)	Great River Hydro		[90] [91]
Seneca	Pennsylvania	41°50′21″N79°0′14″W / 41.83917°N 79.00389°W / 41.83917; -79.00389 (Seneca Pumped Storage)	435		LS Power	Pumped-storage
Shasta	California	40°43′07″N122°25′08″W / 40.71861°N 122.41889°W / 40.71861; -122.41889 (Shasta Dam)	714	1,739(2018)	U.S. Bureau of Reclamation	Reservoir	[92]
Smith Mountain	Virginia	37°02′28″N79°32′08″W / 37.04111°N 79.53556°W / 37.04111; -79.53556 (Smith Mountain Dam)	560		American Electric Power	Pumped-storage
St. Lawrence-FDR	New York	45°00′23″N74°47′42″W / 45.00639°N 74.79500°W / 45.00639; -74.79500 (St. Lawrence-FDR)	912	7,640(2018)	New York Power Authority	Reservoir	[93] [94]
Taum Sauk	Missouri	37°32′08″N90°49′05″W / 37.53556°N 90.81806°W / 37.53556; -90.81806 (Taum Sauk Pumped Storage)	450		Ameren Missouri	Pumped-storage
Wanapum	Washington	46°52′31″N119°58′16″W / 46.875213°N 119.971004°W / 46.875213; -119.971004 (Wanapum Dam)	1,185	5,338 (2018)	Grant County PUD	Reservoir	[95] [96]
Wells	Washington	47°56′43″N119°51′58″W / 47.94528°N 119.86611°W / 47.94528; -119.86611 (Wells Dam)	774	4,439 (2018)	Douglas County PUD	Reservoir	[97] [98]
Wheeler	Alabama	34°48′25″N87°22′55″W / 34.80694°N 87.38194°W / 34.80694; -87.38194 (Wheeler Dam)	402	1,624(2018)	Tennessee Valley Authority	Reservoir	[99] [100]
White Rock	California	38°45′54″N120°47′14″W / 38.76500°N 120.78722°W / 38.76500; -120.78722 (White Rock)	266.5	389(2018)	SMUD	Reservoir	[101]
William R. Gianelli	California	37°03′33″N121°04′29″W / 37.05917°N 121.07472°W / 37.05917; -121.07472 (William R. Gianelli Generating Station)	424	-126 (2018)	CDWR U.S. Bureau of Reclamation	Pumped-storage	[102] [103]
Wilson	Alabama	34°48′03″N87°37′33″W / 34.80083°N 87.62583°W / 34.80083; -87.62583 (Wilson Dam)	653	2,923(2018)	Tennessee Valley Authority	Reservoir	[104] [105]
Wolf Creek	Kentucky	36°52′06″N85°08′51″W / 36.8683°N 85.1475°W / 36.8683; -85.1475	270	800	U.S. Army Corps of Engineers	Reservoir	[106]
Yards Creek	New Jersey	41°0′3″N75°1′54″W / 41.00083°N 75.03167°W / 41.00083; -75.03167 (Yards Creek Generating Station)	453	-115 (2018)	FirstEnergy PSEG	Pumped-storage	[107]

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	Year	Ref
Gordon Butte	Montana	46°25′07″N110°22′20″W / 46.41861°N 110.37222°W / 46.41861; -110.37222 (Gordon Butte Pumped Storage)	400	1,300	Absaroka Energy	Pumped-storage		[108] [109]

See also

• List of power stations in the United States by type
• List of hydroelectric power stations in Canada

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Big Creek, California, 1,050 MW hydroelectric with some pumped storage.

https://newsroom.edison.com/stories/100-years-young:-big-creek-hydroelectric-plant-still-going-strong

Built from 1912 to 1949, with pumped storage completed in the 1980s.