Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Manti Lower | City of Manti - (UT) | Manti, UT | PacifiCorp East (PACE) | 802.0 MWh | Dec 1988 | Dec 2024 | Water |
| Last Chance | PacifiCorp | Grace, ID | PacifiCorp East (PACE) | 4.5 GWh | Jan 1984 | Dec 2024 | Water |
| Lake Creek Dam | Heber Light & Power Company | Heber City, UT | PacifiCorp East (PACE) | 3.2 GWh | Apr 1981 | Dec 2024 | Water |
| Upper Power Plant | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 44.9 GWh | Aug 1982 | Dec 2024 | Water |
| Lower No 2 | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 5.4 GWh | Jul 1940 | Oct 2024 | Water |
| City Power Plant | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 40.4 GWh | Jun 1982 | Dec 2024 | Water |
| Oneida | PacifiCorp | Riverdale, ID | PacifiCorp East (PACE) | 42.0 GWh | Jun 1915 | Dec 2024 | Water |
| Grace | PacifiCorp | Grace, ID | PacifiCorp East (PACE) | 88.1 GWh | Jun 1923 | Dec 2024 | Water |
| Ashton | PacifiCorp | Ashton, ID | PacifiCorp East (PACE) | 32.6 GWh | Jun 1917 | Dec 2024 | Water |
| Blundell | PacifiCorp | Milford, UT | PacifiCorp East (PACE) | 272.5 GWh | Jun 1984 | Dec 2024 | Geothermal |
| Gem State | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 108.5 GWh | Oct 1988 | Dec 2024 | Water |
| Basin Creek Plant | Basin Creek Power Services LLC | Butte, MT | NorthWestern Corporation (NWMT) | 185.4 GWh | May 2006 | Sep 2025 | Natural Gas |
| Hardin Generator Project | Heorot Power Management | Hardin, MT | NorthWestern Corporation (NWMT) | 481.0 GWh | Feb 2006 | Dec 2024 | Subbituminous Coal : 97.5% Bituminous Coal : 1.6% Natural Gas : 0.9% |
| Judith Gap Wind Energy Center | Invenergy Services LLC | Harlowton, MT | NorthWestern Corporation (NWMT) | 403.0 GWh | Nov 2005 | Sep 2025 | Wind |
| Horseshoe Bend Wind Park | Cycle Holdings, LLC | Great Falls, MT | NorthWestern Corporation (NWMT) | 108.0 MWh | Jan 2006 | Dec 2024 | Wind |
| Colstrip | Talen Montana LLC | Colstrip, MT | NorthWestern Corporation (NWMT) | 9.4 TWh | Oct 1975 | Sep 2025 | Subbituminous Coal : 99.9% |
| Lake (WY) | NorthWestern Energy (MT wind/thermal) | Yellowstone, WY | NorthWestern Corporation (NWMT) | 515.0 MWh | Aug 1967 | Dec 2024 | Distillate Fuel Oil |
| Madison Dam | NorthWestern Energy (MT Hydro) | Ennis, MT | NorthWestern Corporation (NWMT) | 76.2 GWh | Aug 1906 | Dec 2024 | Water |
| South Dry Creek Hydro | Hydrodynamics Inc | Red Lodge, MT | NorthWestern Corporation (NWMT) | 3.8 GWh | Aug 1985 | Nov 2024 | Water |
| Colstrip Energy LP | Colstrip Energy LP | Colstrip, MT | NorthWestern Corporation (NWMT) | 287.5 GWh | Jan 1990 | Dec 2024 | Waste/Other Coal : 99.8% |
| Thompson Falls | NorthWestern Energy (MT Hydro) | Thompson Falls, MT | NorthWestern Corporation (NWMT) | 436.4 GWh | Jun 1915 | Dec 2024 | Water |
| Old Faithful | NorthWestern Energy (MT wind/thermal) | Yellowstone, WY | NorthWestern Corporation (NWMT) | 273.0 MWh | Nov 1979 | Dec 2024 | Distillate Fuel Oil |
| Selis Ksanka Qlispe | Energy Keepers Inc | Polson, MT | NorthWestern Corporation (NWMT) | 970.3 GWh | Sep 1938 | Dec 2024 | Water |
| Holter | NorthWestern Energy (MT Hydro) | Wolf Creek, MT | NorthWestern Corporation (NWMT) | 265.8 GWh | Jun 1918 | Dec 2024 | Water |
| Hauser | NorthWestern Energy (MT Hydro) | Helena, MT | NorthWestern Corporation (NWMT) | 134.4 GWh | Oct 1911 | Dec 2024 | Water |
| Cochrane | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 228.0 GWh | Jun 1958 | Dec 2024 | Water |
| Black Eagle | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 127.5 GWh | Aug 1927 | Dec 2024 | Water |
| Ryan | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 434.6 GWh | Jul 1915 | Dec 2024 | Water |
| Rainbow (MT) | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 329.0 GWh | Feb 2013 | Dec 2024 | Water |
| Mystic | NorthWestern Energy (MT Hydro) | Fishtail, MT | NorthWestern Corporation (NWMT) | 53.7 GWh | Apr 1925 | Dec 2024 | Water |
| Morony | NorthWestern Energy (MT Hydro) | Great Falls, MT | NorthWestern Corporation (NWMT) | 255.0 GWh | Dec 1929 | Dec 2024 | Water |
| Yellowstone Energy LP | Yellowstone Energy LP | Billings, MT | NorthWestern Corporation (NWMT) | 426.3 GWh | May 1995 | Sep 2025 | Petroleum Coke : 98.9% Other Gas : 0.9% |
| Broadwater Power Project | Montana Dept-Natural Res&Consv | Toston, MT | NorthWestern Corporation (NWMT) | 47.4 GWh | May 1989 | Dec 2024 | Water |
| Dave Gates Generating Station | NorthWestern Energy (MT wind/thermal) | Anaconda, MT | NorthWestern Corporation (NWMT) | 551.8 GWh | Dec 2010 | Sep 2025 | Natural Gas |
| Stillwater Wind, LLC | Pattern Operators LP | Reed Point, MT | NorthWestern Corporation (NWMT) | 256.1 GWh | Sep 2018 | Sep 2025 | Wind |
| Big Timber Wind Farm | Consolidated Edison Development Inc. | Big Timber, MT | NorthWestern Corporation (NWMT) | 66.0 GWh | Jan 2018 | Sep 2025 | Wind |
| Magpie Solar, LLC | Adapture Renewables, Inc. | Lavina, MT | NorthWestern Corporation (NWMT) | 5.2 GWh | Aug 2017 | Sep 2025 | Solar |
| Black Eagle Solar, LLC | Adapture Renewables, Inc. | Black Eagle, MT | NorthWestern Corporation (NWMT) | 5.1 GWh | Aug 2017 | Sep 2025 | Solar |
| Great Divide Solar, LLC | Adapture Renewables, Inc. | Canyon Creek, MT | NorthWestern Corporation (NWMT) | 5.9 GWh | Aug 2017 | Sep 2025 | Solar |
| Green Meadow Solar, LLC | Adapture Renewables, Inc. | Helena, MT | NorthWestern Corporation (NWMT) | 5.6 GWh | Mar 2017 | Sep 2025 | Solar |
| South Mills Solar, LLC | Adapture Renewables, Inc. | Hardin, MT | NorthWestern Corporation (NWMT) | 5.1 GWh | Mar 2017 | Sep 2025 | Solar |
| River Bend Solar, LLC (MT) | Adapture Renewables, Inc. | Reed Point, MT | NorthWestern Corporation (NWMT) | 3.2 GWh | Mar 2017 | Sep 2025 | Solar |
| Fairfield Wind | Greenbacker Renewable Energy Corporation | Fairfield, MT | NorthWestern Corporation (NWMT) | 25.9 GWh | Apr 2014 | Dec 2024 | Wind |
| Two Dot Wind Farm | NorthWestern Energy (MT wind/thermal) | Two Dot, MT | NorthWestern Corporation (NWMT) | 34.8 GWh | May 2014 | Dec 2024 | Wind |
| South Peak Wind | ALLETE Clean Energy | Geyser, MT | NorthWestern Corporation (NWMT) | 240.9 GWh | Mar 2020 | Sep 2025 | Wind |
| Musselshell Wind Project | Musselshell Wind Project LLC | Shawmut, MT | NorthWestern Corporation (NWMT) | 23.1 GWh | Nov 2012 | Dec 2024 | Wind |
| Gordon Butte Wind LLC | Gordon Butte Wind LLC | Martinsdale, MT | NorthWestern Corporation (NWMT) | 72.8 GWh | Dec 2011 | Dec 2024 | Wind |
| Musselshell Wind Project Two LLC | Musselshell Wind Project Two LLC | Shawmut, MT | NorthWestern Corporation (NWMT) | 26.5 GWh | Nov 2012 | Dec 2024 | Wind |
| Spion Kop Wind Farm | NorthWestern Energy (MT wind/thermal) | Geyser, MT | NorthWestern Corporation (NWMT) | 110.8 GWh | Nov 2012 | Dec 2024 | Wind |
| Flint Creek Hydroelectric LLC | Hydrodynamics Inc | Philipsburg, MT | NorthWestern Corporation (NWMT) | 11.0 GWh | Feb 2013 | Dec 2024 | Water |
| Turnbull Hydro | Turnbull Hydro LLC | Fairfield, MT | NorthWestern Corporation (NWMT) | 19.2 GWh | May 2011 | Aug 2024 | Water |
| Western Sugar Cooperative - Billings | Western Sugar Cooperative - Billings | Billings, MT | NorthWestern Corporation (NWMT) | 5.3 GWh | Feb 2011 | Dec 2024 | Subbituminous Coal : 85.3% Natural Gas : 14.7% |
| Greenfield Wind - MT | Greenbacker Renewable Energy Corporation | Fairfield, MT | NorthWestern Corporation (NWMT) | 82.1 GWh | Sep 2016 | Dec 2024 | Wind |
| Clearwater Wind East | Clearwater Wind East, LLC | Miles City, MT | NorthWestern Corporation (NWMT) | 827.6 GWh | Dec 2023 | Sep 2025 | Wind |
| Clearwater Wind II | Clearwater Wind II, LLC | Miles City, MT | NorthWestern Corporation (NWMT) | 395.2 GWh | Nov 2023 | Sep 2025 | Wind |
| Beaver Creek Wind Facility | Puget Sound Energy Inc | Big Timber, MT | NorthWestern Corporation (NWMT) | 39.6 GWh | - | Sep 2025 | Wind |
| GCC Trident Solar Project | GCC Trident LLC | Three Forks, MT | NorthWestern Corporation (NWMT) | 3.7 GWh | Nov 2022 | Dec 2024 | Solar |
| Yellowstone County Generating Station | NorthWestern Energy (MT wind/thermal) | Laurel, MT | NorthWestern Corporation (NWMT) | 296.7 GWh | Jun 2024 | Sep 2025 | Natural Gas |
| Two Dot Wind Broadview East LLC | Two Dot Wind Broadview East LLC | Broadview, MT | NorthWestern Corporation (NWMT) | 4.2 GWh | Sep 2018 | Dec 2023 | Wind |
| Apex Solar | Apex Solar LLC | Dillon, MT | NorthWestern Corporation (NWMT) | 166.2 GWh | Jul 2023 | Sep 2025 | Solar |
| MTSUN | Greenbacker Renewable Energy Corporation | Billings, MT | NorthWestern Corporation (NWMT) | 153.4 GWh | Dec 2022 | Sep 2025 | Solar |
| 6140 Route 209 - North | 6140 Route 209 - North, LLC | Kerhonkson, NY | New York Independent System Operator (NYIS) | 6.8 GWh | Sep 2019 | Dec 2024 | Solar |
| Adirondack Solar | Cypress Creek Renewables | Ellenburg Center, NY | New York Independent System Operator (NYIS) | 1.7 GWh | Aug 2018 | Dec 2024 | Solar |
| Wappinger 9D Solar | Wappinger 9D Solar, LLC | Wappinger, NY | New York Independent System Operator (NYIS) | 3.3 GWh | Jun 2019 | Dec 2024 | Solar |
| Fogarty CSG | Fogarty Solar LLC | Middletown, NY | New York Independent System Operator (NYIS) | 3.6 GWh | Feb 2021 | Dec 2024 | Solar |
| Mount Hope West | Mount Hope Solar 2 LLC | Mount Hope, NY | New York Independent System Operator (NYIS) | 3.6 GWh | Mar 2020 | Dec 2024 | Solar |
| Off Airport Road - West | Off Airport Road - West, LLC | Accord, NY | New York Independent System Operator (NYIS) | 6.7 GWh | Nov 2019 | Dec 2024 | Solar |
| Orbit Bloom Fuel Cell | DG Fuel Cell, LLC | Medford, NY | New York Independent System Operator (NYIS) | 45.6 GWh | Jul 2020 | Dec 2024 | Natural Gas |
| NYS Rte 12 Community Solar | OYA NYS Rte 12 LLC | Clayton, NY | New York Independent System Operator (NYIS) | 6.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Amazon JFK8 Solar Project | Solar Star Prime 2, LLC | Staten Island, NY | New York Independent System Operator (NYIS) | 6.9 GWh | Feb 2021 | Dec 2024 | Solar |
| Mount Hope East | Mount Hope Solar 1 LLC | Mount Hope, NY | New York Independent System Operator (NYIS) | 3.5 GWh | Sep 2019 | Dec 2024 | Solar |
| NY - CSG - Ellsworth II | Nautilus Solar Solutions | Halfmoon, NY | New York Independent System Operator (NYIS) | 3.6 GWh | Aug 2019 | Dec 2024 | Solar |
| Great Lakes Seaway Community Solar | OYA Great Lakes Seaway LLC | Clayton, NY | New York Independent System Operator (NYIS) | 7.9 GWh | Nov 2019 | Dec 2024 | Solar |
| Moore Road Community Solar | OYA 2643 Moore Road LLC | Ransomville, NY | New York Independent System Operator (NYIS) | 6.3 GWh | Nov 2019 | Dec 2024 | Solar |
| SWM Fuel Cell | Yaphank Fuel Cell Park, LLC | Yaphank, NY | New York Independent System Operator (NYIS) | 55.6 GWh | Nov 2021 | Dec 2024 | Natural Gas |
| Corning Riverview (CSG) | Corning Riverview Project | Tonawanda, NY | New York Independent System Operator (NYIS) | 7.3 GWh | Nov 2020 | Dec 2024 | Solar |
| Blanchard Road 2 Community Solar | OYA Blanchard Road 2 LLC | Clayton, NY | New York Independent System Operator (NYIS) | 8.3 GWh | Nov 2019 | Dec 2024 | Solar |
| Hecate Energy Albany County 1 | Greenbacker Renewable Energy Corporation | Coeymans, NY | New York Independent System Operator (NYIS) | 26.5 GWh | Jan 2024 | Dec 2024 | Solar |
| NY- CSG- Johnstown 2 | NY- CSG- Johnstown 2 | New York, NY | New York Independent System Operator (NYIS) | 2.4 GWh | Feb 2020 | Dec 2024 | Solar |
| Middletown NY 1 | Middletown NY 1, LLC | Middletown, NY | New York Independent System Operator (NYIS) | 3.6 GWh | Feb 2020 | Dec 2024 | Solar |
| Blanchard Road 1 Community Solar | OYA Blanchard Road LLC | Clayton, NY | New York Independent System Operator (NYIS) | 7.1 GWh | Nov 2019 | Dec 2024 | Solar |
| Kenmare - Sullivan Community College | MN8 Energy LLC | Sheldrake, NY | New York Independent System Operator (NYIS) | 2.6 GWh | Jun 2015 | Dec 2024 | Solar |
| Westerlo NY 1 | Westerlo NY 1, LLC | South Westerlo, NY | New York Independent System Operator (NYIS) | 3.5 GWh | Dec 2019 | Dec 2024 | Solar |
| CES Marbletown Solar | Consolidated Edison Solutions Inc. | Marbletown, NY | New York Independent System Operator (NYIS) | 5.0 GWh | Feb 2021 | Dec 2024 | Solar |
| St. Mary's Hospital For Children | St. Mary's Hospital For Children | Bayside, NY | New York Independent System Operator (NYIS) | 54.0 MWh | Dec 2010 | Dec 2024 | Distillate Fuel Oil |
| County of Dutchess, NY (Airport) | Tesla Inc. | Wappinger Falls, NY | New York Independent System Operator (NYIS) | 2.7 GWh | Dec 2019 | Dec 2024 | Solar |
| Brick Church Solar | Brick Church Solar 1, LLC | Brunswick, NY | New York Independent System Operator (NYIS) | 6.5 GWh | Aug 2019 | Dec 2024 | Solar |
| Medusa NY 1 | Medusa NY 1, LLC | Medusa, NY | New York Independent System Operator (NYIS) | 3.3 GWh | May 2020 | Dec 2024 | Solar |
| Mt Pleasant Community Center | Consolidated Edison Solutions Inc. | Valhalla, NY | New York Independent System Operator (NYIS) | 718.0 MWh | Oct 2022 | Dec 2024 | Solar |
| Westtown NY 2 | Westtown NY 2, LLC | Westtown, NY | New York Independent System Operator (NYIS) | 3.2 GWh | Jun 2020 | Dec 2024 | Solar |
| Sunvestment Energy Group NY 63 LLC | Green Street Power Partners | East Syracuse, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Aug 2020 | Dec 2024 | Solar |
| Podunque Road CSG | KSI II Consolidated, LLC | Rushford, NY | New York Independent System Operator (NYIS) | 7.6 GWh | Mar 2021 | Dec 2024 | Solar |
| County Road 16 | KSI II Consolidated, LLC | Watkins Glen, NY | New York Independent System Operator (NYIS) | 3.2 GWh | Nov 2020 | Dec 2024 | Solar |
| Townsend Road(CSG) | KSI II Consolidated, LLC | Dix, NY | New York Independent System Operator (NYIS) | 6.1 GWh | Oct 2021 | Dec 2024 | Solar |
| NY- CSG- Livingston 4 | NY- CSG- Livingston 4 | Caledonia, NY | New York Independent System Operator (NYIS) | 2.9 GWh | Jan 2020 | Dec 2024 | Solar |
| SDM000 Clarkson Fuel Cell | 2016 ESA Project Company, LLC | Brooklyn, NY | New York Independent System Operator (NYIS) | 13.6 GWh | Apr 2018 | Dec 2024 | Natural Gas |
| NHH003 Clarkson Fuel Cell | 2016 ESA Project Company, LLC | Brooklyn, NY | New York Independent System Operator (NYIS) | 8.8 GWh | Aug 2018 | Dec 2024 | Natural Gas |
| NHH004 Winthrop Fuel Cell | 2016 ESA Project Company, LLC | Brooklyn, NY | New York Independent System Operator (NYIS) | 8.0 GWh | Aug 2018 | Dec 2024 | Natural Gas |
| Rosemond Solar Community Solar | Scale Sustainable I, LLC | Fallsburg, NY | New York Independent System Operator (NYIS) | 3.6 GWh | Dec 2020 | Dec 2024 | Solar |
| Grabinski | Grabinski Solar LLC | Walden, NY | New York Independent System Operator (NYIS) | 3.6 GWh | Jun 2019 | Aug 2024 | Solar |
Summary of Power Plants By State
Figures are based on September 2025 generation numbers.| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,052.47 GWh |
| Alaska | # 48 | 147 | 527.57 GWh |
| Arizona | # 9 | 183 | 11,602.92 GWh |
| Arkansas | # 21 | 117 | 5,844.09 GWh |
| California | # 4 | 1,769 | 19,371.91 GWh |
| Colorado | # 30 | 304 | 4,433.17 GWh |
| Connecticut | # 32 | 168 | 3,779.74 GWh |
| Delaware | # 49 | 33 | 419.31 GWh |
| District of Columbia | # 51 | 16 | 16.99 GWh |
| Florida | # 2 | 323 | 24,446.09 GWh |
| Georgia | # 8 | 266 | 11,628.97 GWh |
| Hawaii | # 47 | 73 | 826.54 GWh |
| Idaho | # 44 | 148 | 1,495.33 GWh |
| Illinois | # 5 | 385 | 14,642.93 GWh |
| Indiana | # 14 | 213 | 8,730.35 GWh |
| Iowa | # 26 | 295 | 5,224.35 GWh |
| Kansas | # 25 | 189 | 5,250.86 GWh |
| Kentucky | # 23 | 60 | 5,806.86 GWh |
| Louisiana | # 13 | 87 | 9,343.34 GWh |
| Maine | # 45 | 217 | 1,135.36 GWh |
| Maryland | # 39 | 204 | 2,935.42 GWh |
| Massachusetts | # 41 | 652 | 1,746.92 GWh |
| Michigan | # 11 | 279 | 10,468.02 GWh |
| Minnesota | # 29 | 769 | 4,717.95 GWh |
| Mississippi | # 20 | 58 | 6,625.37 GWh |
| Missouri | # 22 | 128 | 5,843.17 GWh |
| State | Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 1,949.24 GWh |
| Nebraska | # 34 | 132 | 3,501.38 GWh |
| Nevada | # 31 | 114 | 4,053.88 GWh |
| New Hampshire | # 42 | 60 | 1,549.07 GWh |
| New Jersey | # 27 | 399 | 4,969.45 GWh |
| New Mexico | # 36 | 145 | 3,317.84 GWh |
| New York | # 12 | 966 | 10,145.62 GWh |
| North Carolina | # 10 | 917 | 11,211.15 GWh |
| North Dakota | # 37 | 60 | 3,089.17 GWh |
| Ohio | # 6 | 201 | 12,818.31 GWh |
| Oklahoma | # 17 | 143 | 7,364.05 GWh |
| Oregon | # 28 | 282 | 4,812.51 GWh |
| Pennsylvania | # 3 | 260 | 19,731.43 GWh |
| Rhode Island | # 46 | 100 | 863.62 GWh |
| South Carolina | # 16 | 207 | 7,861.23 GWh |
| South Dakota | # 43 | 52 | 1,535.17 GWh |
| Tennessee | # 19 | 88 | 6,829.06 GWh |
| Texas | # 1 | 946 | 51,969.48 GWh |
| Utah | # 35 | 126 | 3,419.48 GWh |
| Vermont | # 50 | 120 | 165.14 GWh |
| Virginia | # 15 | 241 | 8,580.52 GWh |
| Washington | # 18 | 138 | 7,120.43 GWh |
| West Virginia | # 38 | 39 | 3,057.29 GWh |
| Wisconsin | # 24 | 251 | 5,674.74 GWh |
| Wyoming | # 33 | 73 | 3,641.70 GWh |