Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Box Canyon | PUD No 1 of Pend Oreille County - (WA) | Ione, WA | Avista Corporation (AVA) | 459.8 GWh | May 1955 | Dec 2025 | Water |
| Alder | City of Tacoma - (WA) | La Grande, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 187.0 GWh | Nov 1945 | Dec 2025 | Water |
| Cushman 1 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 107.8 GWh | May 1926 | Dec 2025 | Water |
| Cushman 2 | City of Tacoma - (WA) | Shelton, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 160.5 GWh | Nov 1930 | Dec 2025 | Water |
| LaGrande | City of Tacoma - (WA) | La Grande, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 291.2 GWh | Oct 1912 | Dec 2025 | Water |
| Mayfield | City of Tacoma - (WA) | Silver Creek, WA | City of Tacoma, Department of Public Utilities, Light Division (TPWR) | 602.5 GWh | Feb 1963 | Dec 2025 | Water |
| Packwood | Energy Northwest - Packwood | Packwood, WA | Bonneville Power Administration (BPAT) | 73.8 GWh | Mar 1964 | Dec 2025 | Water |
| Biron | Consolidated Water Power Co | Biron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 29.6 GWh | Dec 1895 | Dec 2025 | Water |
| Du Bay | Consolidated Water Power Co | Eau Pleine, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.5 GWh | Dec 1941 | Dec 2025 | Water |
| Stevens Point | Consolidated Water Power Co | Stevens Point, WI | Midcontinent Independent System Operator, Inc. (MISO) | 25.9 GWh | Dec 1917 | Dec 2025 | Water |
| Wisconsin Rapids | Consolidated Water Power Co | Wisconsin Rapids, WI | Midcontinent Independent System Operator, Inc. (MISO) | 46.4 GWh | Dec 1902 | Dec 2025 | Water |
| Whiting | Consolidated Water Power Co | Whiting, WI | Midcontinent Independent System Operator, Inc. (MISO) | 16.1 GWh | Dec 1890 | Dec 2025 | Water |
| Bay Front | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 176.9 GWh | Dec 1948 | Dec 2025 | Wood/Wood Waste Solids : 95.1% Tire-derived Fuels : 4.2% Natural Gas : 0.7% |
| Big Falls | Northern States Power Co - Minnesota | Glen Fora, WI | Midcontinent Independent System Operator, Inc. (MISO) | 27.3 GWh | Dec 1921 | Dec 2025 | Water |
| Ladysmith Dam | Northern States Power Co - Minnesota | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.6 GWh | Dec 1939 | Dec 2025 | Water |
| Thornapple | Northern States Power Co - Minnesota | Bruce, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.6 GWh | Dec 1926 | Dec 2025 | Water |
| White River (WI) | Northern States Power Co - Minnesota | Ashland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 GWh | Dec 1906 | Dec 2025 | Water |
| Blount Street | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 58.6 GWh | May 1957 | Dec 2025 | Natural Gas |
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 28.0 MWh | Nov 1967 | Dec 2025 | Natural Gas |
| Cedar Falls (WI) | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 30.9 GWh | Dec 1909 | Dec 2025 | Water |
| Chippewa Falls | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 56.1 GWh | Dec 1927 | Dec 2025 | Water |
| Dells | Northern States Power Co - Minnesota | Eau Claire, WI | Midcontinent Independent System Operator, Inc. (MISO) | 36.9 GWh | Dec 1922 | Dec 2025 | Water |
| Holcombe | Northern States Power Co - Minnesota | Holcombe, WI | Midcontinent Independent System Operator, Inc. (MISO) | 81.0 GWh | Dec 1949 | Dec 2025 | Water |
| Jim Falls | Northern States Power Co - Minnesota | Jim Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 105.3 GWh | Jun 1988 | Dec 2025 | Water |
| Menomonie | Northern States Power Co - Minnesota | Menomonie, WI | Midcontinent Independent System Operator, Inc. (MISO) | 22.7 GWh | Dec 1957 | Dec 2025 | Water |
| St Croix Falls | Northern States Power Co - Minnesota | St Croix Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 80.0 GWh | Dec 1909 | Dec 2025 | Water |
| Trego | Northern States Power Co - Minnesota | Hayward, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.1 GWh | Dec 1926 | Dec 2025 | Water |
| Wissota | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 118.3 GWh | Dec 1916 | Dec 2025 | Water |
| Clam River Dam | Zero6 Energy Hydro | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | Mar 1942 | Dec 2025 | Water |
| Danbury Dam | Zero6 Energy Hydro | Danbury, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Dec 1920 | Dec 2025 | Water |
| Grantsburg Diesel | Northwestern Wisconsin Elec Co | Grantsburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 26.5 MWh | Nov 1963 | Dec 2025 | Distillate Fuel Oil |
| Appleton | Wisconsin Electric Power Co | Appleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.2 GWh | Jul 1916 | Dec 2025 | Water |
| Oconto Falls Upper | Eagle Creek Renewable Energy, LLC | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.0 GWh | Dec 1917 | Dec 2025 | Water |
| Pine | Wisconsin Electric Power Co | Florence, WI | Midcontinent Independent System Operator, Inc. (MISO) | 11.1 GWh | May 1922 | Dec 2025 | Water |
| Kilbourn | Wisconsin Power & Light Co | Wisconsin Dells, WI | Midcontinent Independent System Operator, Inc. (MISO) | 49.2 GWh | Jun 1926 | Dec 2025 | Water |
| Prairie Du Sac | Wisconsin Power & Light Co | Prairie du Sac, WI | Midcontinent Independent System Operator, Inc. (MISO) | 152.9 GWh | Sep 1915 | Dec 2025 | Water |
| Alexander | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.9 GWh | Dec 1924 | Dec 2025 | Water |
| Caldron Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.9 GWh | Oct 1924 | Dec 2025 | Water |
| Grandfather Falls | Wisconsin Public Service Corp | Irma, WI | Midcontinent Independent System Operator, Inc. (MISO) | 79.1 GWh | Nov 1938 | Dec 2025 | Water |
| Hat Rapids | Wisconsin Public Service Corp | Rhinelander, WI | Midcontinent Independent System Operator, Inc. (MISO) | 6.6 GWh | May 1923 | Dec 2025 | Water |
| High Falls (WI) | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.6 GWh | Jul 1910 | Dec 2025 | Water |
| Johnson Falls | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.7 GWh | Jun 1923 | Dec 2025 | Water |
| Merrill | Wisconsin Public Service Corp | Merrill, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.7 GWh | Feb 1917 | Dec 2025 | Water |
| Potato Rapids | Wisconsin Public Service Corp | Town of Porterfield, WI | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | Apr 1921 | Dec 2025 | Water |
| Sandstone Rapids | Wisconsin Public Service Corp | Town of Stephenson, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.7 GWh | Dec 1924 | Dec 2025 | Water |
| Tomahawk | Wisconsin Public Service Corp | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.7 GWh | Dec 1937 | Dec 2025 | Water |
| West Marinette | Wisconsin Public Service Corp | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 90.3 GWh | May 1971 | Dec 2025 | Natural Gas |
| Wausau | Wisconsin Public Service Corp | Wausau, WI | Midcontinent Independent System Operator, Inc. (MISO) | 24.5 GWh | Feb 1921 | Dec 2025 | Water |
| Castle Rock | Wisconsin River Power Company | Adams, WI | Midcontinent Independent System Operator, Inc. (MISO) | 83.3 GWh | Jul 1950 | Dec 2025 | Water |
| Petenwell | Wisconsin River Power Company | Necedah, WI | Midcontinent Independent System Operator, Inc. (MISO) | 97.2 GWh | Jul 1949 | Dec 2025 | Water |
| Arcadia Electric | City of Arcadia - (WI) | Arcadia, WI | Midcontinent Independent System Operator, Inc. (MISO) | 253.0 MWh | Dec 1929 | Dec 2025 | Distillate Fuel Oil : 70.5% Natural Gas : 29.5% |
| Barron | City of Barron - (WI) | Barron, WI | Midcontinent Independent System Operator, Inc. (MISO) | 382.0 MWh | Jul 1923 | Dec 2025 | Water |
| Cashton | Village of Cashton - (WI) | Cashton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 9.8 MWh | Jul 1932 | Dec 2025 | Distillate Fuel Oil : 98.3% Natural Gas : 1.7% |
| Cumberland (WI) | City of Cumberland - (WI) | Cumberland, WI | Midcontinent Independent System Operator, Inc. (MISO) | 269.0 MWh | Jul 1939 | Dec 2025 | Distillate Fuel Oil : 62.7% Natural Gas : 37.3% |
| Elroy | City of Elroy - (WI) | Elroy, WI | Midcontinent Independent System Operator, Inc. (MISO) | 48.0 MWh | Apr 1973 | Dec 2025 | Distillate Fuel Oil |
| Fennimore | City of Fennimore - (WI) | Fennimore, WI | Midcontinent Independent System Operator, Inc. (MISO) | 75.0 MWh | Jan 1952 | Dec 2025 | Distillate Fuel Oil |
| Kaukauna Gas Turbine | City of Kaukauna (WI) | Kaukauna, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Apr 1969 | Dec 2025 | Natural Gas |
| Little Chute | City of Kaukauna (WI) | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 22.1 GWh | May 1948 | Dec 2025 | Water |
| Rapide Croche | City of Kaukauna (WI) | Kaukana, WI | Midcontinent Independent System Operator, Inc. (MISO) | 16.5 GWh | Dec 1925 | Dec 2025 | Water |
| La Farge | La Farge Municipal Electric Co - (WI) | La Farge, WI | Midcontinent Independent System Operator, Inc. (MISO) | 12.0 MWh | Sep 1990 | Dec 2025 | Distillate Fuel Oil |
| New Lisbon | City of New Lisbon (WI) | New Lisbon, WI | Midcontinent Independent System Operator, Inc. (MISO) | 55.0 MWh | Dec 1965 | Dec 2025 | Distillate Fuel Oil |
| Viola | Village of Viola - (WI) | Viola, WI | Midcontinent Independent System Operator, Inc. (MISO) | 15.0 MWh | Dec 2001 | Dec 2025 | Distillate Fuel Oil |
| Flambeau Hydroelectric Station | Dairyland Power Coop | Ladysmith, WI | Midcontinent Independent System Operator, Inc. (MISO) | 50.6 GWh | Dec 1950 | Dec 2025 | Water |
| Stiles | Oconto Electric Cooperative | Oconto Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.3 GWh | Feb 1949 | Dec 2025 | Water |
| Washington Island | Washington Island El Coop, Inc | Washington Island, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 MWh | Nov 1945 | Dec 2025 | Distillate Fuel Oil |
| Fremont Canyon | U S Bureau of Reclamation | Alcova, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 233.5 GWh | Nov 1960 | Dec 2025 | Water |
| Glendo | U S Bureau of Reclamation | Glendo, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 67.3 GWh | Nov 1958 | Dec 2025 | Water |
| Guernsey | U S Bureau of Reclamation | Guernsey, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 14.6 GWh | Jun 1927 | Dec 2025 | Water |
| Kortes | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 105.7 GWh | May 1950 | Dec 2025 | Water |
| Seminoe | U S Bureau of Reclamation | Sinclair, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 84.5 GWh | Jul 1939 | Dec 2025 | Water |
| Shoshone (WY) | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 17.1 GWh | Mar 1922 | Dec 2025 | Water |
| Fontenelle | U S Bureau of Reclamation | Le Barge, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 43.8 GWh | Apr 1968 | Dec 2025 | Water |
| Powerlane Plant | City of Greenville - (TX) | Greenville, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 55.8 GWh | Dec 1965 | Dec 2025 | Natural Gas : 98.7% Distillate Fuel Oil : 1.3% |
| Combined Locks | City of Kaukauna (WI) | Combined Locks, WI | Midcontinent Independent System Operator, Inc. (MISO) | 42.6 GWh | Jan 1988 | Dec 2025 | Water |
| Island Park | Fall River Rural Elec Coop Inc | Island Park, ID | Bonneville Power Administration (BPAT) | 9.7 GWh | Mar 1994 | Dec 2025 | Water |
| PHP 1 | City of Portland (OR) | Sandy, OR | Portland General Electric Company (PGE) | 37.6 GWh | Jan 1982 | Dec 2025 | Water |
| PHP 2 | City of Portland (OR) | Sandy, OR | Portland General Electric Company (PGE) | 25.8 GWh | Jan 1982 | Dec 2025 | Water |
| Logan City | City of Logan - (UT) | Logan, UT | PacifiCorp East (PACE) | 2.0 GWh | Jun 2002 | Dec 2025 | Natural Gas |
| Greenup Hydro | City of Hamilton - (OH) | Franklin Furnace, OH | PJM Interconnection, LLC (PJM) | 265.6 GWh | Nov 1982 | Dec 2025 | Water |
| Cumberland (NJ) | Calpine New Jersey Generation LLC | Millville, NJ | PJM Interconnection, LLC (PJM) | 119.4 GWh | Apr 1990 | Dec 2025 | Natural Gas : 97.0% Kerosene : 3.0% |
| Racine | Eagle Creek Renewable Energy, LLC | Racine, OH | PJM Interconnection, LLC (PJM) | 190.0 GWh | Aug 1982 | Dec 2025 | Water |
| Sherman | Great River Hydro, LLC | Rowe, MA | ISO New England (ISNE) | 27.8 GWh | Nov 1926 | Dec 2025 | Water |
| DeBary | Duke Energy Florida, LLC | DeBary, FL | Duke Energy Florida, Inc. (FPC) | 103.5 GWh | Nov 1975 | Dec 2025 | Natural Gas : 84.4% Distillate Fuel Oil : 15.6% |
| Deerfield 2 | Great River Hydro, LLC | Conway, MA | ISO New England (ISNE) | 29.4 GWh | Jul 1913 | Dec 2025 | Water |
| Kahului | Maui Electric Co Ltd | Kahului, HI | 152.1 GWh | Apr 1948 | Dec 2025 | Residual Fuel Oil | |
| Cascade Creek | Rochester Public Utilities | Rochester, MN | Midcontinent Independent System Operator, Inc. (MISO) | 32.7 GWh | May 1975 | Dec 2025 | Natural Gas : 98.4% Distillate Fuel Oil : 1.6% |
| Coachella | Imperial Irrigation District | Coachella, CA | Imperial Irrigation District (IID) | 2.1 GWh | May 1973 | Dec 2025 | Natural Gas : 95.7% Distillate Fuel Oil : 4.3% |
| Electrifarm | MidAmerican Energy Co | Waterloo, IA | Midcontinent Independent System Operator, Inc. (MISO) | 16.7 GWh | Apr 1975 | Dec 2025 | Natural Gas |
| Deerfield 3 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 26.5 GWh | Jul 1912 | Dec 2025 | Water |
| Cornell | Northern States Power Co - Minnesota | Chippewa Falls, WI | Midcontinent Independent System Operator, Inc. (MISO) | 69.9 GWh | Jun 1976 | Dec 2025 | Water |
| North Loop | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 1.0 GWh | Nov 1972 | Dec 2025 | Natural Gas |
| Deerfield 4 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 21.5 GWh | Jul 1912 | Dec 2025 | Water |
| Whitehorn | Puget Sound Energy Inc | Blaine, WA | Puget Sound Energy, Inc. (PSEI) | 65.2 GWh | Sep 1981 | Dec 2025 | Natural Gas : 99.8% |
| Shrewsbury | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 1.9 GWh | Oct 1969 | Dec 2025 | Distillate Fuel Oil |
| Amistad Dam & Power | International Bound & Wtr Comm | Del Rio, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 39.2 GWh | May 1983 | Dec 2025 | Water |
| Jones Bluff | USCE-Mobile District | Selma, AL | Southern Company Services, Inc. - Trans (SOCO) | 250.8 GWh | May 1975 | Dec 2025 | Water |
| West Point (GA) | USCE-Mobile District | West Point, GA | Southern Company Services, Inc. - Trans (SOCO) | 159.0 GWh | Mar 1975 | Dec 2025 | Water |
| Ozark | USCE-Little Rock District | Ozark, AR | Southwestern Power Administration (SPA) | 279.6 GWh | Oct 1972 | Dec 2025 | Water |
| Crystal | U S Bureau of Reclamation | Montrose, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 141.3 GWh | May 1978 | Dec 2025 | Water |
| Laurel Dam | USCE-Nashville District | London, KY | PJM Interconnection, LLC (PJM) | 88.8 GWh | Oct 1977 | Dec 2025 | Water |
Summary of Power Plants By State
Figures are based on August 2026 generation numbers.| State | Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Alabama | # 9 | 80 | 13,897.78 GWh |
| Alaska | # 48 | 146 | 672.99 GWh |
| Arizona | # 10 | 203 | 13,589.64 GWh |
| Arkansas | # 23 | 122 | 7,027.75 GWh |
| California | # 3 | 1,840 | 24,164.86 GWh |
| Colorado | # 30 | 321 | 5,322.30 GWh |
| Connecticut | # 34 | 180 | 4,400.98 GWh |
| Delaware | # 49 | 35 | 555.40 GWh |
| District of Columbia | # 51 | 19 | 21.71 GWh |
| Florida | # 2 | 345 | 28,185.93 GWh |
| Georgia | # 6 | 261 | 15,282.60 GWh |
| Hawaii | # 47 | 73 | 863.62 GWh |
| Idaho | # 43 | 152 | 1,754.56 GWh |
| Illinois | # 5 | 556 | 18,683.36 GWh |
| Indiana | # 17 | 226 | 9,970.06 GWh |
| Iowa | # 27 | 301 | 5,759.64 GWh |
| Kansas | # 26 | 191 | 6,368.18 GWh |
| Kentucky | # 21 | 63 | 7,221.26 GWh |
| Louisiana | # 14 | 93 | 10,670.45 GWh |
| Maine | # 45 | 250 | 1,285.31 GWh |
| Maryland | # 37 | 236 | 3,745.22 GWh |
| Massachusetts | # 41 | 679 | 1,958.59 GWh |
| Michigan | # 12 | 288 | 12,064.19 GWh |
| Minnesota | # 32 | 794 | 5,047.38 GWh |
| Mississippi | # 19 | 62 | 8,358.70 GWh |
| Missouri | # 22 | 134 | 7,125.71 GWh |
| State | Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 2,266.60 GWh |
| Nebraska | # 39 | 132 | 3,448.00 GWh |
| Nevada | # 29 | 117 | 5,523.31 GWh |
| New Hampshire | # 42 | 60 | 1,901.10 GWh |
| New Jersey | # 25 | 409 | 6,440.88 GWh |
| New Mexico | # 33 | 166 | 4,571.47 GWh |
| New York | # 11 | 1,087 | 13,130.21 GWh |
| North Carolina | # 8 | 921 | 14,263.55 GWh |
| North Dakota | # 38 | 62 | 3,579.89 GWh |
| Ohio | # 7 | 216 | 14,448.49 GWh |
| Oklahoma | # 13 | 153 | 10,965.38 GWh |
| Oregon | # 31 | 292 | 5,257.14 GWh |
| Pennsylvania | # 4 | 270 | 23,772.83 GWh |
| Rhode Island | # 46 | 108 | 924.31 GWh |
| South Carolina | # 16 | 214 | 9,989.71 GWh |
| South Dakota | # 44 | 53 | 1,486.65 GWh |
| Tennessee | # 18 | 101 | 8,430.26 GWh |
| Texas | # 1 | 1,069 | 65,726.98 GWh |
| Utah | # 36 | 131 | 4,074.82 GWh |
| Vermont | # 50 | 118 | 175.56 GWh |
| Virginia | # 15 | 255 | 10,241.54 GWh |
| Washington | # 20 | 137 | 8,189.60 GWh |
| West Virginia | # 28 | 41 | 5,593.74 GWh |
| Wisconsin | # 24 | 272 | 6,683.19 GWh |
| Wyoming | # 35 | 71 | 4,322.19 GWh |