Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Granite Falls | City of Granite Falls - (MN) | Granite Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | Jul 1932 | Dec 2024 | Water |
| Echo Dam | City of Bountiful | Echo, UT | PacifiCorp East (PACE) | 13.3 GWh | Feb 1987 | Oct 2024 | Water |
| Greenup Hydro | City of Hamilton - (OH) | Franklin Furnace, OH | PJM Interconnection, LLC (PJM) | 261.5 GWh | Nov 1982 | Dec 2024 | Water |
| Rochester Hydro | Rochester Public Utilities | Mazeppa, MN | Midcontinent Independent System Operator, Inc. (MISO) | 10.5 GWh | Aug 1984 | Dec 2024 | Water |
| PHP 2 | Portland City of | Sandy, OR | Portland General Electric Company (PGE) | 35.5 GWh | Jan 1982 | Dec 2024 | Water |
| PHP 1 | Portland City of | Sandy, OR | Portland General Electric Company (PGE) | 46.4 GWh | Jan 1982 | Dec 2024 | Water |
| Island Park | Fall River Rural Elec Coop Inc | Island Park, ID | Bonneville Power Administration (BPAT) | 17.9 GWh | Mar 1994 | Dec 2024 | Water |
| Combined Locks | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.4 GWh | Jan 1988 | Dec 2024 | Water |
| Fontenelle | U S Bureau of Reclamation | Le Barge, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 53.3 GWh | Apr 1968 | Dec 2024 | Water |
| Shoshone (WY) | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 17.6 GWh | Mar 1922 | Dec 2024 | Water |
| Hauser | NorthWestern Energy (MT Hydro) | Helena, MT | NorthWestern Corporation (NWMT) | 134.4 GWh | Oct 1911 | Dec 2024 | Water |
| Kortes | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 155.4 GWh | May 1950 | Dec 2024 | Water |
| Guernsey | U S Bureau of Reclamation | Guernsey, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 18.0 GWh | Jun 1927 | Dec 2024 | Water |
| Glendo | U S Bureau of Reclamation | Glendo, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 87.7 GWh | Nov 1958 | Dec 2024 | Water |
| Fremont Canyon | U S Bureau of Reclamation | Alcova, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 227.7 GWh | Nov 1960 | Dec 2024 | Water |
| Stiles | Oconto Electric Cooperative | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Feb 1949 | Dec 2024 | Water |
| Flambeau Hydroelectric Station | Dairyland Power Coop | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 62.1 GWh | Dec 1950 | Dec 2024 | Water |
| Rapide Croche | City of Kaukauna | Kaukana, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.2 GWh | Dec 1925 | Dec 2024 | Water |
| New Badger | City of Kaukauna | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 44.5 GWh | Dec 2013 | Nov 2025 | Water |
| Little Chute | City of Kaukauna | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 23.8 GWh | May 1948 | Dec 2024 | Water |
| Niangua | Sho-Me Power Electric Coop | Camdenton, MO | Associated Electric Cooperative, Inc. (AECI) | 542.0 MWh | Oct 1930 | Jul 2024 | Water |
| Mossyrock | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 780.0 GWh | Sep 1968 | Nov 2025 | Water |
| Du Bay | Consolidated Water Power Co | Eau Pleine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.1 GWh | Dec 1941 | Dec 2024 | Water |
| Biron | Consolidated Water Power Co | Biron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.9 GWh | Dec 1895 | Dec 2024 | Water |
| Rainbow (MT) | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 329.0 GWh | Feb 2013 | Dec 2024 | Water |
| Ryan | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 434.6 GWh | Jul 1915 | Dec 2024 | Water |
| Thompson Falls | NorthWestern Energy (MT Hydro) | Thompson Falls, MT | NorthWestern Corporation (NWMT) | 436.4 GWh | Jun 1915 | Dec 2024 | Water |
| Noxon Rapids | Avista Corp | Noxon, MT | Avista Corporation (AVA) | 1.3 TWh | Aug 1959 | Dec 2024 | Water |
| Packwood | Energy Northwest | Packwood, WA | Bonneville Power Administration (BPAT) | 63.0 GWh | Mar 1964 | Dec 2024 | Water |
| Lower Monumental | USACE Northwestern Division | Kahlotus, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | May 1969 | Nov 2025 | Water |
| Little Goose | USACE Northwestern Division | Dayton, WA | Bonneville Power Administration (BPAT) | 1.5 TWh | Mar 1970 | Nov 2025 | Water |
| Ice Harbor | USACE Northwestern Division | Burbank, WA | Bonneville Power Administration (BPAT) | 1.4 TWh | Dec 1961 | Nov 2025 | Water |
| Chief Joseph | USACE Northwestern Division | Bridgeport, WA | Bonneville Power Administration (BPAT) | 9.7 TWh | Aug 1955 | Nov 2025 | Water |
| Stevens Point | Consolidated Water Power Co | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 28.5 GWh | Dec 1917 | Dec 2024 | Water |
| Mayfield | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 576.4 GWh | Feb 1963 | Dec 2024 | Water |
| LaGrande | City of Tacoma - (WA) | La Grande, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 297.3 GWh | Oct 1912 | Dec 2024 | Water |
| Cushman 2 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 179.2 GWh | Nov 1930 | Dec 2024 | Water |
| Cushman 1 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 120.0 GWh | May 1926 | Dec 2024 | Water |
| Granite Shoals | Lower Colorado River Authority | Marble Falls, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 22.4 GWh | May 1951 | Dec 2024 | Water |
| The Dalles | USACE Northwestern Division | The Dalles, OR | Bonneville Power Administration (BPAT) | 5.7 TWh | May 1957 | Nov 2025 | Water |
| Box Canyon | PUD No 1 of Pend Oreille County | Ione, WA | Avista Corporation (AVA) | 464.1 GWh | May 1955 | Dec 2024 | Water |
| Wanapum | PUD No 2 of Grant County | Beverly, WA | Public Utility District No. 2 of Grant County, Washington (GCPD) | 4.3 TWh | May 1963 | Nov 2025 | Water |
| Priest Rapids | PUD No 2 of Grant County | Mattawa, WA | Bonneville Power Administration (BPAT) | 4.1 TWh | Sep 1959 | Nov 2025 | Water |
| Wells | PUD No 1 of Douglas County | Chelan, WA | PUD No. 1 of Douglas County (DOPD) | 3.7 TWh | Aug 1967 | Nov 2025 | Water |
| Cedar Falls (WI) | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 34.3 GWh | Dec 1909 | Dec 2024 | Water |
| Danbury Dam | Renewable World Energies LLC | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.6 GWh | Dec 1920 | Dec 2024 | Water |
| Clam River Dam | Renewable World Energies LLC | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.1 GWh | Mar 1942 | Dec 2024 | Water |
| Wissota | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 135.9 GWh | Dec 1916 | Dec 2024 | Water |
| Holter | NorthWestern Energy (MT Hydro) | Wolf Creek, MT | NorthWestern Corporation (NWMT) | 265.8 GWh | Jun 1918 | Dec 2024 | Water |
| Trego | Northern States Power Co - Minnesota | Hayward, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.5 GWh | Dec 1926 | Dec 2024 | Water |
| St Croix Falls | Northern States Power Co - Minnesota | St Croix Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 104.9 GWh | Dec 1909 | Dec 2024 | Water |
| Menomonie | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.5 GWh | Dec 1957 | Dec 2024 | Water |
| Jim Falls | Northern States Power Co - Minnesota | Jim Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 121.9 GWh | Jun 1988 | Dec 2024 | Water |
| Holcombe | Northern States Power Co - Minnesota | Holcombe, WI | Midcontinent Independent System Operator, Inc. (MISO) | 92.7 GWh | Dec 1949 | Dec 2024 | Water |
| Dells | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 42.4 GWh | Dec 1922 | Dec 2024 | Water |
| Chippewa Falls | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 63.0 GWh | Dec 1927 | Dec 2024 | Water |
| Rocky Reach | PUD No 1 of Chelan County | Wenatchee, WA | Public Utility District No. 1 of Chelan County (CHPD) | 5.2 TWh | May 1961 | Nov 2025 | Water |
| Arpin Dam | Renewable World Energies LLC | Radisson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.6 GWh | Aug 1971 | Dec 2024 | Water |
| Selis Ksanka Qlispe | Energy Keepers Inc | Polson, MT | NorthWestern Corporation (NWMT) | 970.3 GWh | Sep 1938 | Dec 2024 | Water |
| Morony | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 255.0 GWh | Dec 1929 | Dec 2024 | Water |
| Mystic | NorthWestern Energy (MT Hydro) | Fishtail, MT | NorthWestern Corporation (NWMT) | 53.7 GWh | Apr 1925 | Dec 2024 | Water |
| White River (WI) | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.9 GWh | Dec 1906 | Dec 2024 | Water |
| Thornapple | Northern States Power Co - Minnesota | Bruce, WI | Midcontinent Independent System Operator, Inc. (MISO) | 7.6 GWh | Dec 1926 | Dec 2024 | Water |
| Ladysmith Dam | Northern States Power Co - Minnesota | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.3 GWh | Dec 1939 | Dec 2024 | Water |
| Big Falls | Northern States Power Co - Minnesota | Glen Fora, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.1 GWh | Dec 1921 | Dec 2024 | Water |
| Whiting | Consolidated Water Power Co | Whiting, WI | Midcontinent Independent System Operator, Inc. (MISO) | 25.0 GWh | Dec 1890 | Dec 2024 | Water |
| Wisconsin Rapids | Consolidated Water Power Co | Wisconsin Rapids, WI | Midcontinent Independent System Operator, Inc. (MISO) | 49.9 GWh | Dec 1902 | Dec 2024 | Water |
| Round Butte | Portland General Electric Co | Madras, OR | Portland General Electric Company (PGE) | 794.4 GWh | Jul 1964 | Dec 2024 | Water |
| Lookout Point | USACE Northwestern Division | Lowell, OR | Bonneville Power Administration (BPAT) | 175.1 GWh | Dec 1954 | Dec 2024 | Water |
| John Day | USACE Northwestern Division | Rufus, OR | Bonneville Power Administration (BPAT) | 7.3 TWh | Jul 1968 | Nov 2025 | Water |
| Hills Creek | USACE Northwestern Division | Oakridge, OR | Bonneville Power Administration (BPAT) | 119.8 GWh | Jan 1962 | Dec 2024 | Water |
| Green Peter | USACE Northwestern Division | Foster, OR | Bonneville Power Administration (BPAT) | 155.2 GWh | Jun 1967 | Dec 2024 | Water |
| Dexter | USACE Northwestern Division | Lowell, OR | Bonneville Power Administration (BPAT) | 14.6 GWh | May 1955 | Dec 2024 | Water |
| Detroit | USACE Northwestern Division | Mill City, OR | Bonneville Power Administration (BPAT) | 219.7 GWh | Jun 1953 | Dec 2024 | Water |
| Cougar | USACE Northwestern Division | Lowell, OR | Bonneville Power Administration (BPAT) | 66.9 GWh | Feb 1964 | Dec 2024 | Water |
| Bonneville | USACE Northwestern Division | Cascade Locks, OR | Bonneville Power Administration (BPAT) | 3.6 TWh | Jun 1938 | Nov 2025 | Water |
| Big Cliff | USACE Northwestern Division | Gates, OR | Bonneville Power Administration (BPAT) | 90.8 GWh | Nov 1954 | Dec 2024 | Water |
| Walterville | Eugene Water & Electric Board | Springfield, OR | Bonneville Power Administration (BPAT) | 51.1 GWh | Dec 1948 | Feb 2024 | Water |
| Carmen Smith | Eugene Water & Electric Board | McKenzie Bridge, OR | Bonneville Power Administration (BPAT) | 223.3 GWh | Dec 1962 | Dec 2024 | Water |
| Sullivan | Portland General Electric Co | West Linn, OR | Portland General Electric Company (PGE) | 104.1 GWh | Apr 1924 | Dec 2024 | Water |
| McNary | USACE Northwestern Division | Umatilla, OR | Bonneville Power Administration (BPAT) | 3.7 TWh | Nov 1953 | Dec 2024 | Water |
| River Mill | Portland General Electric Co | Estacada, OR | Portland General Electric Company (PGE) | 99.1 GWh | Oct 1911 | Dec 2024 | Water |
| Pelton | Portland General Electric Co | Madras, OR | Portland General Electric Company (PGE) | 361.8 GWh | Nov 1957 | Dec 2024 | Water |
| North Fork | Portland General Electric Co | Estacada, OR | Portland General Electric Company (PGE) | 186.7 GWh | Oct 1958 | Dec 2024 | Water |
| Faraday | Portland General Electric Co | Estacada, OR | Portland General Electric Company (PGE) | 119.9 GWh | Jan 1907 | Dec 2024 | Water |
| Wallowa Falls | PacifiCorp | Joseph, OR | PacifiCorp West (PACW) | 2.5 GWh | Jun 1921 | Dec 2024 | Water |
| Toketee Falls | PacifiCorp | Idleyld Park, OR | PacifiCorp West (PACW) | 184.1 GWh | Nov 1949 | Dec 2024 | Water |
| Soda Springs | PacifiCorp | Idleyld Park, OR | PacifiCorp West (PACW) | 48.9 GWh | Feb 1952 | Dec 2024 | Water |
| Slide Creek | PacifiCorp | Idleyld Park, OR | PacifiCorp West (PACW) | 62.8 GWh | Jun 1951 | Dec 2024 | Water |
| Prospect 4 | PacifiCorp | Prospect, OR | PacifiCorp West (PACW) | 417.0 MWh | Oct 1944 | Dec 2024 | Water |
| Prospect 2 | PacifiCorp | Prospect, OR | PacifiCorp West (PACW) | 193.1 GWh | Dec 1927 | Dec 2024 | Water |
| Prospect 1 | PacifiCorp | Prospect, OR | PacifiCorp West (PACW) | 2.2 GWh | Dec 1911 | Jun 2024 | Water |
| Sherman Island | Erie Boulevard Hydropower LP | Queensbury, NY | New York Independent System Operator (NYIS) | 175.0 GWh | Dec 1922 | Dec 2024 | Water |
| Piercefield | Erie Boulevard Hydropower LP | Piercefield, NY | New York Independent System Operator (NYIS) | 13.8 GWh | Dec 1923 | Dec 2024 | Water |
| Prospect | Erie Boulevard Hydropower LP | Prospect, NY | New York Independent System Operator (NYIS) | 69.1 GWh | Dec 1958 | Dec 2024 | Water |
| Rainbow Falls Hydro | Erie Boulevard Hydropower LP | Parishville, NY | New York Independent System Operator (NYIS) | 108.7 GWh | Dec 1955 | Dec 2024 | Water |
| Raymondville | Erie Boulevard Hydropower LP | Norfolk, NY | New York Independent System Operator (NYIS) | 13.5 GWh | Dec 1927 | Dec 2024 | Water |
| Buchanan Dam (TX) | Lower Colorado River Authority | Buchanan Dam, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 17.1 GWh | Dec 1937 | Dec 2024 | Water |
| Wallenpaupack | Wallenpuapack Hydro | Drumore, PA | PJM Interconnection, LLC (PJM) | 86.7 GWh | May 1926 | Dec 2024 | Water |
| School Street | Erie Boulevard Hydropower LP | Cohoes, NY | New York Independent System Operator (NYIS) | 158.8 GWh | Dec 1914 | Dec 2024 | Water |
Summary of Power Plants By State
Figures are based on November 2025 generation numbers.| State | Rank | Active Plants | Nov 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 11,511.20 GWh |
| Alaska | # 48 | 144 | 528.08 GWh |
| Arizona | # 13 | 184 | 8,245.57 GWh |
| Arkansas | # 24 | 116 | 5,216.59 GWh |
| California | # 4 | 1,736 | 15,288.71 GWh |
| Colorado | # 29 | 302 | 4,252.83 GWh |
| Connecticut | # 34 | 166 | 3,697.17 GWh |
| Delaware | # 49 | 33 | 425.33 GWh |
| District of Columbia | # 51 | 16 | 14.43 GWh |
| Florida | # 2 | 323 | 18,667.27 GWh |
| Georgia | # 8 | 262 | 11,183.00 GWh |
| Hawaii | # 47 | 73 | 801.36 GWh |
| Idaho | # 43 | 146 | 1,663.41 GWh |
| Illinois | # 5 | 384 | 14,942.91 GWh |
| Indiana | # 15 | 211 | 7,722.21 GWh |
| Iowa | # 19 | 293 | 6,283.14 GWh |
| Kansas | # 32 | 187 | 4,136.03 GWh |
| Kentucky | # 21 | 60 | 5,370.35 GWh |
| Louisiana | # 12 | 86 | 8,259.66 GWh |
| Maine | # 45 | 216 | 1,300.62 GWh |
| Maryland | # 40 | 203 | 2,568.19 GWh |
| Massachusetts | # 41 | 648 | 1,975.71 GWh |
| Michigan | # 9 | 273 | 10,785.64 GWh |
| Minnesota | # 28 | 765 | 4,723.22 GWh |
| Mississippi | # 23 | 57 | 5,274.88 GWh |
| Missouri | # 22 | 128 | 5,368.91 GWh |
| State | Rank | Active Plants | Nov 2025 Generation |
|---|---|---|---|
| Montana | # 39 | 71 | 2,609.34 GWh |
| Nebraska | # 35 | 129 | 3,447.15 GWh |
| Nevada | # 38 | 114 | 3,066.88 GWh |
| New Hampshire | # 44 | 60 | 1,466.90 GWh |
| New Jersey | # 27 | 393 | 4,952.95 GWh |
| New Mexico | # 36 | 144 | 3,313.38 GWh |
| New York | # 10 | 956 | 10,414.21 GWh |
| North Carolina | # 11 | 909 | 9,927.17 GWh |
| North Dakota | # 33 | 61 | 3,714.56 GWh |
| Ohio | # 6 | 198 | 11,688.48 GWh |
| Oklahoma | # 18 | 143 | 6,525.64 GWh |
| Oregon | # 20 | 275 | 5,407.05 GWh |
| Pennsylvania | # 3 | 256 | 17,277.29 GWh |
| Rhode Island | # 46 | 100 | 833.56 GWh |
| South Carolina | # 16 | 208 | 7,560.03 GWh |
| South Dakota | # 42 | 52 | 1,785.37 GWh |
| Tennessee | # 26 | 88 | 5,030.87 GWh |
| Texas | # 1 | 955 | 43,514.30 GWh |
| Utah | # 37 | 125 | 3,174.08 GWh |
| Vermont | # 50 | 117 | 164.43 GWh |
| Virginia | # 17 | 239 | 7,087.47 GWh |
| Washington | # 14 | 137 | 7,966.23 GWh |
| West Virginia | # 31 | 39 | 4,211.99 GWh |
| Wisconsin | # 25 | 250 | 5,195.24 GWh |
| Wyoming | # 30 | 71 | 4,237.64 GWh |