List of hydroelectric power stations in the United States

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

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

Contents

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

NameStateCoordinatesCapacity
(MW)
Annual generation
(GWh)
OwnerTypeRef
Bad Creek Flag of South Carolina.svg  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 Flag of Virginia.svg  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 Flag of Massachusetts.svg  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 Flag of South Dakota.svg  South Dakota 44°02′58″N99°26′55″W / 44.04947°N 99.44859°W / 44.04947; -99.44859 (Big Bend Dam) 4941,193(2018) U.S. Army Corps of Engineers Reservoir [6]
Big CreekCalifornia1,0501,050 MW hydroelectric with some pumped storage. Built from 1912 to 1949, with pumped storage completed in the 1980s. [7]
Blenheim–Gilboa Flag of New York.svg  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 Flag of Oregon.svg  Oregon
Flag of Washington.svg  Washington
45°38′39″N121°56′26″W / 45.64417°N 121.94056°W / 45.64417; -121.94056 (Bonneville Dam) 1,2274,860 (2018) U.S. Army Corps of Engineers Run-of-the-river [8] [9] [10]
Boundary Flag of Washington.svg  Washington 48°59′14″N117°20′51″W / 48.98722°N 117.34750°W / 48.98722; -117.34750 (Boundary Dam) 1,0034,004 (2018) Seattle City Light Reservoir [11] [12]
Brownlee Flag of Idaho.svg  Idaho
Flag of Oregon.svg  Oregon
44°50′10″N116°54′00″W / 44.836°N 116.9°W / 44.836; -116.9 (Brownlee Dam) 5852,419(2018) Idaho Power Reservoir [13] [14]
Bull Shoals Flag of Arkansas.svg  Arkansas 36°21′58″N92°34′29″W / 36.36611°N 92.57472°W / 36.36611; -92.57472 (Bull Shoals Dam) 340623(2018) U.S. Army Corps of Engineers Reservoir [15]
Carters Flag of Georgia (U.S. state).svg  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 [16]
Castaic Flag of California.svg  California 34°35′14″N118°39′24″W / 34.58722°N 118.65667°W / 34.58722; -118.65667 (Castaic Pumped Storage) 1,500232(2018) CDWR (50%)
LADWP (50%)
Pumped-storage [17] [18]
Chief Joseph Flag of Washington.svg  Washington 47°59′43″N119°38′00″W / 47.99528°N 119.63333°W / 47.99528; -119.63333 (Chief Joseph Dam) 2,62012,352 (2018) U.S. Army Corps of Engineers Run-of-the-river [19] [20]
Comerford Flag of New Hampshire.svg  New Hampshire 165.9417 (2019) Great River Hydro [21] [22]
Conowingo Flag of Maryland.svg  Maryland 39°39′36″N76°10′26″W / 39.66000°N 76.17389°W / 39.66000; -76.17389 (Conowingo Dam) 5482,788(2018) Exelon Run-of-the-river [23]
The Dalles Flag of Oregon.svg  Oregon
Flag of Washington.svg  Washington
45°36′44″N121°08′04″W / 45.61222°N 121.13444°W / 45.61222; -121.13444 (The Dalles Dam) 1,8137,161 (2018) U.S. Army Corps of Engineers Run-of-the-river [24] [25]
Davis Dam Flag of Arizona.svg  Arizona
Flag of Nevada.svg  Nevada
35°11′56″N114°34′10″W / 35.19889°N 114.56944°W / 35.19889; -114.56944 (Davis Dam) 2551,103(2018) U.S. Bureau of Reclamation Reservoir [26]
Devil Canyon Project Flag of California.svg  California 34°12′20″N117°20′05″W / 34.20556°N 117.33472°W / 34.20556; -117.33472 (Devil Canyon Project) 276.2787(2018) CDWR Reservoir [27]
Dworshak Flag of Idaho.svg  Idaho 46°30′54″N116°17′46″W / 46.515°N 116.296°W / 46.515; -116.296 (Dworshak Dam) 4001,598(2018) U.S. Army Corps of Engineers Reservoir [28] [29]
Fontana Flag of North Carolina.svg  North Carolina 35°27′8″N83°48′17″W / 35.45222°N 83.80472°W / 35.45222; -83.80472 (Fontana Dam) 3041,151(2018) Tennessee Valley Authority Reservoir [30] [31]
Fort Randall Flag of South Dakota.svg  South Dakota 43°04′00″N98°33′14″W / 43.06672°N 98.5539°W / 43.06672; -98.5539 (Fort Randall Dam) 3201,725(2018) U.S. Army Corps of Engineers Reservoir [32] [33]
Garrison Flag of North Dakota.svg  North Dakota 47°29′55″N101°24′43″W / 47.49861°N 101.41194°W / 47.49861; -101.41194 (Garrison Dam) 6143,180(2018) U.S. Army Corps of Engineers Reservoir [34]
Glen Canyon Flag of Arizona.svg  Arizona 36°56′15″N111°29′04″W / 36.93750°N 111.48444°W / 36.93750; -111.48444 (Glen Canyon Dam) 1,3203,959 (2018) U.S. Bureau of Reclamation Reservoir [35]
Grand Coulee Flag of Washington.svg  Washington 47°57′21″N118°58′54″W / 47.95583°N 118.98167°W / 47.95583; -118.98167 (Grand Coulee Dam) 6,80921,043 (2018) U.S. Bureau of Reclamation Reservoir (95.4%)
Pumped-storage (4.6%)
[36] [37]
Great Lakes Hydro Flag of Maine.svg  Maine 138723 (2019) Great Lakes Hydro America [38] [39]
Hartwell Flag of Georgia (U.S. state).svg  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 Flag of Idaho.svg  Idaho
Flag of Oregon.svg  Oregon
45°14′41″N116°41′54″W / 45.24472°N 116.69833°W / 45.24472; -116.69833 (Hells Canyon Dam) 391.52,195(2018) Idaho Power Company Reservoir [40] [41]
Helms Flag of California.svg  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 [42] [43]
Hoover Flag of Arizona.svg  Arizona
Flag of Nevada.svg  Nevada
36°0′56″N114°44′16″W / 36.01556°N 114.73778°W / 36.01556; -114.73778 (Hoover Dam) 2,0803,542 (2018) U.S. Bureau of Reclamation Reservoir [44] [45] [46]
Hungry Horse Flag of Montana.svg  Montana 48°20′28″N114°00′50″W / 48.341°N 114.014°W / 48.341; -114.014 (Hungry Horse Dam) 428999(2018) U.S. Bureau of Reclamation Reservoir [47] [48]
Ice Harbor Flag of Washington.svg  Washington 46°14′58″N118°52′47″W / 46.24958°N 118.87972°W / 46.24958; -118.87972 (Ice Harbor Dam) 6031,711 (2018) U.S. Army Corps of Engineers Run-of-the-river [49] [50]
J. Strom Thurmond Flag of Georgia (U.S. state).svg  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 Flag of South Carolina.svg  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 [51]
John Day Flag of Oregon.svg  Oregon
Flag of Washington.svg  Washington
45°42′59″N120°41′40″W / 45.71639°N 120.69444°W / 45.71639; -120.69444 (John Day Dam) 2,1609,193 (2018) U.S. Army Corps of Engineers Run-of-the-river [52] [53]
Libby Flag of Montana.svg  Montana 48°24′36″N115°18′50″W / 48.41°N 115.314°W / 48.41; -115.314 (Libby Dam) 6002,056(2018) U.S. Army Corps of Engineers Reservoir [54] [55]
Little Goose Flag of Washington.svg  Washington 46°35′15″N118°01′34″W / 46.58737°N 118.02606°W / 46.58737; -118.02606 (Little Goose Dam) 8102,452 (2018) U.S. Army Corps of Engineers Run-of-the-river [56] [57]
Lower Granite Flag of Washington.svg  Washington 46°39′38″N117°25′41″W / 46.66056°N 117.42806°W / 46.66056; -117.42806 (Lower Granite Dam) 8102,467 (2018) U.S. Army Corps of Engineers Run-of-the-river [58] [59]
Lower Monumental Flag of Washington.svg  Washington 46°33′47″N118°32′20″W / 46.563°N 118.539°W / 46.563; -118.539 (Lower Monumental Dam) 8102,383 (2018) U.S. Army Corps of Engineers Run-of-the-river [60] [61]
Ludington Flag of Michigan.svg  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 [62] [63]
McNary Flag of Oregon.svg  Oregon
Flag of Washington.svg  Washington
45°55′47″N119°17′46″W / 45.92972°N 119.29611°W / 45.92972; -119.29611 (McNary Dam) 98669(2018) U.S. Army Corps of Engineers Run-of-the-river [64] [65]
Mossyrock Flag of Washington.svg  Washington 46°32′04″N122°25′29″W / 46.53444°N 122.42472°W / 46.53444; -122.42472 (Mossyrock Dam) 378.4908(2018) Tacoma Power Reservoir [66] [67]
Muddy Run Flag of Pennsylvania.svg  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 Flag of California.svg  California 39°23′36″N121°08′35″W / 39.39333°N 121.14306°W / 39.39333; -121.14306 (New Bullards Bar Dam) 3151,091(2018) Yuba County Water Agency Reservoir [68] [69]
New Melones Flag of California.svg  California 37°56′50″N120°31′41″W / 37.94722°N 120.52806°W / 37.94722; -120.52806 (New Melones Dam) 300418(2012) U.S. Bureau of Reclamation Reservoir [70] [71]
Northfield Mountain Flag of Massachusetts.svg  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 [72] [73] [74]
Noxon Rapids Flag of Montana.svg  Montana 47°57′39″N115°44′01″W / 47.96083°N 115.73361°W / 47.96083; -115.73361 (Noxon Rapids Dam) 5271,841(2018) Avista Reservoir [75] [76]
Oahe Flag of South Dakota.svg  South Dakota 44°27′07″N100°23′57″W / 44.45194°N 100.39917°W / 44.45194; -100.39917 (Oahe Dam) 7863,346(2018) U.S. Army Corps of Engineers Reservoir [77]
Oroville Flag of California.svg  California 39°32′20″N121°29′08″W / 39.53889°N 121.48556°W / 39.53889; -121.48556 (Oroville Dam) 6441,291(2018) CDWR Reservoir [78]
Priest Rapids Flag of Washington.svg  Washington 46°38′35″N119°54′34″W / 46.64319°N 119.90949°W / 46.64319; -119.90949 (Priest Rapids Dam) 9554,737 (2018) Grant County PUD Reservoir [79] [80]
Raccoon Mountain Flag of Tennessee.svg  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 [81] [82]
Richard B. Russell Flag of Georgia (U.S. state).svg  Georgia
Flag of South Carolina.svg  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 Flag of New York.svg  New York 43°08′35″N79°02′23″W / 43.14306°N 79.03972°W / 43.14306; -79.03972 (Robert Moses Niagara) 2,67516,773 (2018) New York Power Authority Reservoir [83]
Rock Island Flag of Washington.svg  Washington 47°20′32″N120°05′41″W / 47.34216°N 120.09477°W / 47.34216; -120.09477 (Rock Island Dam) 622.52,652 (2018) Chelan County PUD Reservoir [84] [85]
Rocky Mountain Flag of Georgia (U.S. state).svg  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 Flag of Washington.svg  Washington 47°32′00″N120°17′44″W / 47.53333°N 120.29556°W / 47.53333; -120.29556 (Rocky Reach Dam) 1,3476,287 (2018) Chelan County PUD Reservoir [86] [87]
Round Butte Flag of Oregon.svg  Oregon 44°36′11″N121°16′40″W / 44.60306°N 121.27778°W / 44.60306; -121.27778 (Round Butte Dam) 367835(2018) Portland General Electric Reservoir [88]
Safe Harbor Flag of Pennsylvania.svg  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 Flag of Oklahoma.svg  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 [89] [90]
S. C. Moore Flag of New Hampshire.svg  New Hampshire 190.8336 (2019) Great River Hydro [91] [92]
Seneca Flag of Pennsylvania.svg  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 Flag of California.svg  California 40°43′07″N122°25′08″W / 40.71861°N 122.41889°W / 40.71861; -122.41889 (Shasta Dam) 7141,739(2018) U.S. Bureau of Reclamation Reservoir [93]
Smith Mountain Flag of Virginia.svg  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 Flag of New York.svg  New York 45°00′23″N74°47′42″W / 45.00639°N 74.79500°W / 45.00639; -74.79500 (St. Lawrence-FDR) 9127,640(2018) New York Power Authority Reservoir [94] [95]
Taum Sauk Flag of Missouri.svg  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 Flag of Washington.svg  Washington 46°52′31″N119°58′16″W / 46.875213°N 119.971004°W / 46.875213; -119.971004 (Wanapum Dam) 1,1855,338 (2018) Grant County PUD Reservoir [96] [97]
Wells Flag of Washington.svg  Washington 47°56′43″N119°51′58″W / 47.94528°N 119.86611°W / 47.94528; -119.86611 (Wells Dam) 7744,439 (2018) Douglas County PUD Reservoir [98] [99]
Wheeler Flag of Alabama.svg  Alabama 34°48′25″N87°22′55″W / 34.80694°N 87.38194°W / 34.80694; -87.38194 (Wheeler Dam) 4021,624(2018) Tennessee Valley Authority Reservoir [100] [101]
White Rock Flag of California.svg  California 38°45′54″N120°47′14″W / 38.76500°N 120.78722°W / 38.76500; -120.78722 (White Rock) 266.5389(2018) SMUD Reservoir [102]
William R. Gianelli Flag of California.svg  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 [103] [104]
Wilson Flag of Alabama.svg  Alabama 34°48′03″N87°37′33″W / 34.80083°N 87.62583°W / 34.80083; -87.62583 (Wilson Dam) 6532,923(2018) Tennessee Valley Authority Reservoir [105] [106]
Wolf Creek Flag of Kentucky.svg  Kentucky 36°52′06″N85°08′51″W / 36.8683°N 85.1475°W / 36.8683; -85.1475 270800 U.S. Army Corps of Engineers Reservoir [107]
Yards Creek Flag of New Jersey.svg  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 [108]

Under construction

This is a list of hydroelectric power stations under construction with an expected nameplate capacity of at least 100 MW.

NameStateCoordinatesCapacity
(MW)
Annual generation
(GWh)
OwnerTypeYearRef
Gordon Butte Flag of Montana.svg  Montana 46°25′07″N110°22′20″W / 46.41861°N 110.37222°W / 46.41861; -110.37222 (Gordon Butte Pumped Storage) 4001,300 Absaroka Energy Pumped-storage [109] [110]

See also

References

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