List of hydroelectric power stations 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 250 MW.

Grand Coulee Dam, the largest hydroelectric power station in North America.
Main article: Hydroelectric power in the United States

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″N 82°59′40″W 1,065 Duke Energy Pumped-storage
Bath County  Virginia 38°13′50″N 79°49′10″W 3,003 -983 (2018) Dominion Energy (60%)
Bath County Energy (24%)
Allegheny Energy (16%)		 Pumped-storage [2][3]
Bear Swamp  Massachusetts 42°41′06″N 72°58′36″W 600 -171 (2018 National Grid Pumped-storage [4][5]
Big Bend  South Dakota 44°02′58″N 99°26′55″W 494 1,193 (2018) U.S. Army Corps of Engineers Reservoir [6]
Blenheim–Gilboa  New York 42°27′18″N 74°27′29″W 1,134 New York Power Authority Pumped-storage
Bonneville  Oregon
 Washington		 45°38′39″N 121°56′26″W 1,080 4,860 (2018) U.S. Army Corps of Engineers Run-of-the-river [7][8]
Boundary  Washington 48°59′14″N 117°20′51″W 1,003 4,004 (2018) Seattle City Light Reservoir [9][10]
Brownlee  Idaho
 Oregon		 44°50′10″N 116°54′00″W 585 2,419 (2018) Idaho Power Reservoir [11][12]
Bull Shoals  Arkansas 36°21′58″N 92°34′29″W 340 623 (2018) U.S. Army Corps of Engineers Reservoir [13]
Carters  Georgia 34°36′55″N 84°40′26″W 600 U.S. Army Corps of Engineers Pumped-storage [14]
Castaic  California 34°35′14″N 118°39′24″W 1,500 232 (2018) CDWR (50%)
LADWP (50%)		 Pumped-storage [15][16]
Chief Joseph  Washington 47°59′43″N 119°38′00″W 2,075 12,352 (2018) U.S. Army Corps of Engineers Run-of-the-river [17][18]
Conowingo  Maryland 39°39′36″N 76°10′26″W 548 2,788 (2018) Exelon Run-of-the-river [19]
The Dalles  Oregon
 Washington		 45°36′44″N 121°08′04″W 1,813 7,161 (2018) U.S. Army Corps of Engineers Run-of-the-river [20][21]
Davis Dam  Arizona
 Nevada		 35°11′56″N 114°34′10″W 255 1,103 (2018) U.S. Bureau of Reclamation Reservoir [22]
Devil Canyon Project  California 34°12′20″N 117°20′05″W 276.2 787 (2018) CDWR Reservoir [23]
Dworshak  Idaho 46°30′54″N 116°17′46″W 400 1,598 (2018) U.S. Army Corps of Engineers Reservoir [24][25]
Fontana  North Carolina 35°27′8″N 83°48′17″W 304 1,151 (2018) Tennessee Valley Authority Reservoir [26][27]
Fort Randall  South Dakota 43°04′00″N 98°33′14″W 320 1,725 (2018) U.S. Army Corps of Engineers Reservoir [28][29]
Garrison  North Dakota 47°29′55″N 101°24′43″W 614 3,180 (2018) U.S. Army Corps of Engineers Reservoir [30]
Glen Canyon  Arizona 36°56′15″N 111°29′04″W 1,320 3,959 (2018) U.S. Bureau of Reclamation Reservoir [31]
Grand Coulee  Washington 47°57′21″N 118°58′54″W 6,809 21,043 (2018) U.S. Bureau of Reclamation Reservoir (95.4%)
Pumped-storage (4.6%)		 [32][33]
Hartwell  Georgia 34°21′28″N 82°49′17″W 421 U.S. Army Corps of Engineers Reservoir
Hells Canyon  Idaho
 Oregon		 45°14′41″N 116°41′54″W 391.5 2,195 (2018) Idaho Power Company Reservoir [34][35]
Helms  California 37°02′13″N 118°57′53″W 1,212 -413 (2018) PG&E Pumped-storage [36][37]
Hoover  Arizona
 Nevada		 36°0′56″N 114°44′16″W 2,080 3,542 (2018) U.S. Bureau of Reclamation Reservoir [38][39][40]
Hungry Horse  Montana 48°20′28″N 114°00′50″W 428 999 (2018) U.S. Bureau of Reclamation Reservoir [41][42]
Ice Harbor  Washington 46°14′58″N 118°52′47″W 603 1,711 (2018) U.S. Army Corps of Engineers Run-of-the-river [43][44]
J. Strom Thurmond  Georgia 33°39′39″N 82°11′59″W 380 U.S. Army Corps of Engineers Reservoir
Jocassee  South Carolina 34°0′57″N 82°55′05″W 710 Duke Energy Pumped-storage [45]
John Day  Oregon
 Washington		 45°42′59″N 120°41′40″W 2,160 9,193 (2018) U.S. Army Corps of Engineers Run-of-the-river [46][47]
Libby  Montana 48°24′36″N 115°18′50″W 600 2,056 (2018) U.S. Army Corps of Engineers Reservoir [48][49]
Little Goose  Washington 46°35′15″N 118°01′34″W 810 2,452 (2018) U.S. Army Corps of Engineers Run-of-the-river [50][51]
Lower Granite  Washington 46°39′38″N 117°25′41″W 810 2,467 (2018) U.S. Army Corps of Engineers Run-of-the-river [52][53]
Lower Monumental  Washington 46°33′47″N 118°32′20″W 810 2,383 (2018) U.S. Army Corps of Engineers Run-of-the-river [54][55]
Ludington  Michigan 43°53′37″N 86°26′43″W 2,172 -698 (2018) Consumers Energy (51%)
DTE Electric (49%)		 Pumped-storage [56][57]
McNary  Oregon
 Washington		 45°55′47″N 119°17′46″W 986 69 (2018) U.S. Army Corps of Engineers Run-of-the-river [58][59]
Mossyrock  Washington 46°32′04″N 122°25′29″W 378.4 908 (2018) Tacoma Power Reservoir [60][61]
Muddy Run  Pennsylvania 39°50′49″N 76°17′29″W 1,072 Exelon Pumped-storage
New Bullards Bar  California 39°23′36″N 121°08′35″W 315 1,091 (2018) Yuba County Water Agency Reservoir [62][63]
New Melones  California 37°56′50″N 120°31′41″W 300 418 (2012) U.S. Bureau of Reclamation Reservoir [64][65]
Northfield Mountain  Massachusetts 42°36′39″N 72°28′17″W 1,168 -293 (2018) FirstLight Pumped-storage [66][67][68]
Noxon Rapids  Montana 47°57′39″N 115°44′01″W 527 1,841 (2018) Avista Reservoir [69][70]
Oahe  South Dakota 44°27′07″N 100°23′57″W 786 3,346 (2018) U.S. Army Corps of Engineers Reservoir [71]
Oroville  California 39°32′20″N 121°29′08″W 644 1,291 (2018) CDWR Reservoir [72]
Priest Rapids  Washington 46°38′35″N 119°54′34″W 955 4,737 (2018) Grant County PUD Reservoir [73][74]
Raccoon Mountain  Tennessee 35°2′54″N 85°23′48″W 1,616 -620 (2018) Tennessee Valley Authority Pumped-storage [75][76]
Richard B. Russell  Georgia
 South Carolina		 34°01′30″N 82°35′39″W 600 U.S. Army Corps of Engineers Pumped-storage
Robert Moses Niagara  New York 43°08′35″N 79°02′23″W 2,675 16,773 (2018) New York Power Authority Reservoir [77]
Rock Island  Washington 47°20′32″N 120°05′41″W 622.5 2,652 (2018) Chelan County PUD Reservoir [78][79]
Rocky Mountain  Georgia 34°21′20″N 85°18′14″W 1,095 Oglethorpe Power (75%)
Georgia Power (25%)		 Pumped-storage
Rocky Reach  Washington 47°32′00″N 120°17′44″W 1,347 6,287 (2018) Chelan County PUD Reservoir [80][81]
Round Butte  Oregon 44°36′11″N 121°16′40″W 367 835 (2018) Portland General Electric Reservoir [82]
Safe Harbor  Pennsylvania 39°55′14″N 76°23′33″W 422.5 SHWP Reservoir
St. Lawrence-FDR  New York 45°00′23″N 74°47′42″W 912 7,640 (2018) New York Power Authority Reservoir [83][84]
Salina  Oklahoma 36°15′55″N 95°06′15″W 259 -135 (2018) Grand River Dam Authority Pumped-storage [85][86]
Seneca  Pennsylvania 41°50′21″N 79°0′14″W 435 LS Power Pumped-storage
Shasta  California 40°43′07″N 122°25′08″W 714 1,739 (2018) U.S. Bureau of Reclamation Reservoir [87]
Smith Mountain  Virginia 37°02′28″N 79°32′08″W 560 American Electric Power Pumped-storage
Taum Sauk  Missouri 37°32′08″N 90°49′05″W 450 Ameren Missouri Pumped-storage
Wanapum  Washington 46°52′31″N 119°58′16″W 1,185 5,338 (2018) Grant County PUD Reservoir [88][89]
Wells  Washington 47°56′43″N 119°51′58″W 774 4,439 (2018) Douglas County PUD Reservoir [90][91]
Wheeler  Alabama 34°48′25″N 87°22′55″W 402 1,624 (2018) Tennessee Valley Authority Reservoir [92][93]
White Rock  California 38°45′54″N 120°47′14″W 266.5 389 (2018) SMUD Reservoir [94]
William R. Gianelli  California 37°03′33″N 121°04′29″W 424 -126 (2018) CDWR
U.S. Bureau of Reclamation		 Pumped-storage [95][96]
Wilson  Alabama 34°48′03″N 87°37′33″W 653 2,923 (2018) Tennessee Valley Authority Reservoir [97][98]
Yards Creek  New Jersey 41°0′3″N 75°1′54″W 453 -115 (2018) FirstEnergy
PSEG		 Pumped-storage [99]

Under construction

This is a list of hydroelectric power stations under construction with an expected nameplate capacity of at least 250 MW.

Name State Coordinates Capacity
(MW)		 Annual Generation
(GWh)		 Owner Type Year Ref
Gordon Butte  Montana 46°25′07″N 110°22′20″W 400 1,300 Absaroka Energy Pumped-storage [100][101]

See Also

References
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