Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Spring Valley | Spring Valley Pub Utils Comm | Spring Valley, MN | Midcontinent Independent System Operator, Inc. (MISO) | 227.4 MWh | Dec 1951 | Dec 2025 | Distillate Fuel Oil : 82.2% Natural Gas : 17.8% |
| Spring Street Solar 1 CSG | Spring Street Solar 1, LLC | Carver, MA | ISO New England (ISNE) | 3.2 GWh | Feb 2017 | Dec 2024 | Solar |
| Spring Hope Solar 2, LLC | Spring Hope Solar 2, LLC | Spring Hope, NC | Duke Energy Carolinas (DUK) | 9.4 GWh | Nov 2021 | Dec 2025 | Solar |
| Spring Canyon Expansion Wind Energy Ctr | Spring Canyon Expansion LLC | Peetz, CO | Public Service Company of Colorado (PSCO) | 103.6 GWh | Sep 2014 | Dec 2025 | Wind |
| Spreckels Sugar Company | Spreckels Sugar Company | Brawley, CA | Imperial Irrigation District (IID) | 19.9 GWh | Mar 1948 | Dec 2024 | Natural Gas |
| Sprague Hydro | Sprague Hydro LLC | Bly, OR | PacifiCorp West (PACW) | 1.1 GWh | Sep 1989 | Dec 2025 | Water |
| SPPW1, LLC | SPPW1, LLC | Upland, NE | Southwest Power Pool (SWPP) | 24.5 GWh | Jun 2022 | Dec 2025 | Wind |
| Spica Community Solar | Spica Community Solar | Lake Lillian, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Jul 2017 | Dec 2025 | Solar |
| Hurricane Creek CSG | SPG IL Hurricane Creek Solar LLC | Carterville, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.2 GWh | May 2021 | Dec 2025 | Solar |
| IL17021 Brush Creek I CSG | SPG IL Brush Creek I Solar LLC | Freeport, IL | PJM Interconnection, LLC (PJM) | 4.1 GWh | Feb 2022 | Dec 2025 | Solar |
| Speedway Solar, LLC | Speedway Solar, LLC | Morrison Town, IN | Midcontinent Independent System Operator, Inc. (MISO) | 379.1 GWh | May 2025 | May 2026 | Solar |
| Spectrum Solar Hybrid | Spectrum Solar LLC | Oxon Hill, MD | PJM Interconnection, LLC (PJM) | 10.7 GWh | Nov 2023 | Dec 2025 | Solar |
| Spartanburg Water System | Spartanburg Commissioners PW | Chesnee, SC | Duke Energy Carolinas (DUK) | 620.0 MWh | Dec 1925 | May 2026 | Water : 84.0% Distillate Fuel Oil : 16.0% |
| Sparta Solar | Sparta Solar, LLC | Pawnee, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 481.0 GWh | Mar 2024 | May 2026 | Solar |
| Spanish Peaks Solar | Spanish Peaks Solar LLC | Trinidad, CO | Public Service Company of Colorado (PSCO) | 354.9 GWh | Nov 2024 | May 2026 | Solar |
| Spanish Fork Wind Park 2 LLC | Spanish Fork Wind Park 2, LLC | Spanish Fork, UT | PacifiCorp East (PACE) | 43.1 GWh | Jun 2008 | Apr 2026 | Wind |
| Sowega Power | SOWEGA Power LLC | Baconton, GA | Southern Company Services, Inc. - Trans (SOCO) | 29.3 GWh | May 1999 | Dec 2025 | Natural Gas : 92.8% Distillate Fuel Oil : 7.2% |
| Hale Community Wind Farm | Southwestern Public Service Co | Plainview, TX | Southwest Power Pool (SWPP) | 2.0 TWh | May 2019 | May 2026 | Wind |
| Cunningham Solar I & BESS | Southwestern Public Service Co | Hobbs, NM | Southwest Power Pool (SWPP) | 38.3 GWh | - | May 2026 | Solar |
| Plant X Solar | Southwestern Public Service Co | Earth, TX | Southwest Power Pool (SWPP) | 79.1 GWh | - | May 2026 | Solar |
| Sagamore Wind | Southwestern Public Service Co | Rogers, NM | Southwest Power Pool (SWPP) | 2.1 TWh | Nov 2020 | May 2026 | Wind |
| Quay County | Southwestern Public Service Co | Tucumcari, NM | Southwest Power Pool (SWPP) | 42.0 MWh | Sep 2013 | Dec 2025 | Distillate Fuel Oil |
| Cunningham | Southwestern Public Service Co | Hobbs, NM | Southwest Power Pool (SWPP) | 1.7 TWh | Dec 1956 | May 2026 | Natural Gas |
| Plant X | Southwestern Public Service Co | Earth, TX | Southwest Power Pool (SWPP) | 815.7 GWh | Dec 1951 | Dec 2024 | Natural Gas : 99.9% |
| Nichols | Southwestern Public Service Co | Amarillo, TX | Southwest Power Pool (SWPP) | 1.7 TWh | Dec 1959 | Dec 2025 | Natural Gas |
| Tolk | Southwestern Public Service Co | Muleshoe, TX | Southwest Power Pool (SWPP) | 3.1 TWh | Dec 1981 | May 2026 | Subbituminous Coal : 86.6% Natural Gas : 13.4% |
| Maddox | Southwestern Public Service Co | Hobbs, NM | Southwest Power Pool (SWPP) | 731.3 GWh | Dec 1962 | May 2026 | Natural Gas |
| Harrington | Southwestern Public Service Co | Amarillo, TX | Southwest Power Pool (SWPP) | 2.2 TWh | Dec 1975 | May 2026 | Natural Gas |
| Jones | Southwestern Public Service Co | Lubbock, TX | Southwest Power Pool (SWPP) | 3.2 TWh | Dec 1970 | May 2026 | Natural Gas |
| Knox Lee | Southwestern Electric Power Co | Longview, TX | Southwest Power Pool (SWPP) | 321.3 GWh | Nov 1950 | Dec 2024 | Natural Gas |
| Wilkes | Southwestern Electric Power Co | Avinger, TX | Southwest Power Pool (SWPP) | 1.2 TWh | Apr 1964 | Dec 2024 | Natural Gas : 99.7% |
| Flint Creek | Southwestern Electric Power Co | Gentry, AR | Southwest Power Pool (SWPP) | 2.8 TWh | Apr 1978 | May 2026 | Subbituminous Coal : 99.9% |
| Welsh | Southwestern Electric Power Co | Pittsburg, TX | Southwest Power Pool (SWPP) | 3.5 TWh | Feb 1977 | May 2026 | Subbituminous Coal : 99.7% |
| Wagon Wheel Wind | Southwestern Electric Power Co | Orlando, OK | Southwest Power Pool (SWPP) | 801.0 GWh | Nov 2025 | Mar 2026 | Wind |
| John W Turk Jr Power Plant | Southwestern Electric Power Co | Fulton, AR | Southwest Power Pool (SWPP) | 3.1 TWh | Nov 2012 | May 2026 | Subbituminous Coal : 99.5% Natural Gas : 0.5% |
| J Lamar Stall Unit | Southwestern Electric Power Co | Shreveport, LA | Southwest Power Pool (SWPP) | 3.2 TWh | May 2010 | May 2026 | Natural Gas |
| Lieberman | Southwestern Electric Power Co | Mooringsport, LA | Southwest Power Pool (SWPP) | 183.9 GWh | Jun 1947 | Dec 2024 | Natural Gas |
| Arsenal Hill | Southwestern Electric Power Co | Shreveport, LA | Southwest Power Pool (SWPP) | 192.1 GWh | Feb 1960 | Dec 2024 | Natural Gas |
| Traverse Wind Project, LLC | Southwestern Electric Power Co | Thomas, OK | Southwest Power Pool (SWPP) | 3.4 TWh | Mar 2022 | May 2026 | Wind |
| Diversion Wind Energy LLC | Southwestern Electric Power Co | Seymour, TX | Southwest Power Pool (SWPP) | 738.1 GWh | Nov 2024 | Jan 2026 | Wind |
| Southern Sky Renew Energy Berkley LLC | Southern Sky Renewable Energy Berkley, LLC | Berkley, MA | ISO New England (ISNE) | 4.2 GWh | May 2014 | Dec 2025 | Solar |
| Lamesa Solar | Southern Power Co | Lamesa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 195.3 GWh | Mar 2017 | May 2026 | Solar |
| RE Tranquillity | Southern Power Co | Cantua Creek, CA | California Independent System Operator (CISO) | 484.8 GWh | Jun 2016 | Dec 2025 | Solar |
| Grant Wind, LLC | Southern Power Co | Medford, OK | Southwest Power Pool (SWPP) | 498.5 GWh | Mar 2016 | Dec 2025 | Wind |
| RE Roserock | Southern Power Co | Fort Stockton, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 369.0 GWh | Oct 2016 | May 2026 | Solar |
| Salt Fork Wind Project, LLC | Southern Power Co | Clarendon, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 676.0 GWh | Nov 2016 | May 2026 | Wind |
| RE Garland A | Southern Power Co | Rosamond, CA | California Independent System Operator (CISO) | 56.7 GWh | Aug 2016 | Dec 2025 | Solar |
| East Pecos Solar | Southern Power Co | McCamey, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 225.1 GWh | Mar 2017 | May 2026 | Solar |
| Morelos del Sol | Southern Power Co | Lost Hills, CA | California Independent System Operator (CISO) | 31.2 GWh | Oct 2015 | Dec 2025 | Solar |
| Grant Plains Wind, LLC | Southern Power Co | Medford, OK | Southwest Power Pool (SWPP) | 521.5 GWh | Nov 2016 | May 2026 | Wind |
| Bethel Wind Farm LLC | Southern Power Co | Dimmitt, TX | Southwest Power Pool (SWPP) | 1.1 TWh | Dec 2016 | May 2026 | Wind |
| Tyler Bluff Wind Project, LLC | Southern Power Co | Muenster, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 343.1 GWh | Nov 2016 | May 2026 | Wind |
| Taylor County Solar | Southern Power Co | Butler, GA | Southern Company Services, Inc. - Trans (SOCO) | 257.2 GWh | Oct 2016 | Dec 2025 | Solar |
| Butler Solar Project 103 | Southern Power Co | Butler, GA | Southern Company Services, Inc. - Trans (SOCO) | 221.7 GWh | Nov 2016 | May 2026 | Solar |
| Pawpaw Solar Plant | Southern Power Co | Butler, GA | Southern Company Services, Inc. - Trans (SOCO) | 62.5 GWh | Feb 2016 | Dec 2025 | Solar |
| Butler Solar Farm 20 | Southern Power Co | Butler, GA | Southern Company Services, Inc. - Trans (SOCO) | 41.6 GWh | Jan 2016 | Dec 2025 | Solar |
| RE Garland | Southern Power Co | Rosamond, CA | California Independent System Operator (CISO) | 509.7 GWh | Oct 2016 | Dec 2025 | Solar |
| Boulder Solar Power, LLC | Southern Power Co | Boulder City, NV | Nevada Power Company (NEVP) | 276.9 GWh | Nov 2016 | May 2026 | Solar |
| South Cheyenne Solar | Southern Power Co | South Greeley, WY | Western Area Power Administration - Rocky Mountain Region (WACM) | 312.4 GWh | Mar 2024 | May 2026 | Solar |
| Dahlberg | Southern Power Co | Nicholson, GA | Southern Company Services, Inc. - Trans (SOCO) | 229.4 GWh | May 2000 | Dec 2024 | Natural Gas : 92.4% Distillate Fuel Oil : 7.6% |
| Rowan | Southern Power Co | Salisbury, NC | Duke Energy Carolinas (DUK) | 5.0 TWh | Mar 2001 | May 2026 | Natural Gas : 99.0% Distillate Fuel Oil : 1.0% |
| H Allen Franklin Combined Cycle | Southern Power Co | Smiths, AL | Southern Company Services, Inc. - Trans (SOCO) | 12.2 TWh | May 2002 | May 2026 | Natural Gas |
| E B Harris Electric Generating Plant | Southern Power Co | Autaugaville, AL | Southern Company Services, Inc. - Trans (SOCO) | 4.9 TWh | May 2003 | May 2026 | Natural Gas |
| Wansley Combined Cycle | Southern Power Co | Franklin, GA | Southern Company Services, Inc. - Trans (SOCO) | 7.4 TWh | May 2002 | May 2026 | Natural Gas |
| Edward L. Addison Generating Plant | Southern Power Co | Thomaston, GA | Southern Company Services, Inc. - Trans (SOCO) | 241.9 GWh | May 2000 | Dec 2024 | Natural Gas : 98.2% Distillate Fuel Oil : 1.8% |
| Beech Ridge II Wind Energy Center | Southern Power Co | Rupert, WV | PJM Interconnection, LLC (PJM) | 131.9 GWh | Apr 2020 | May 2026 | Wind |
| Wildhorse Mountain Wind Facility | Southern Power Co | Clayton, OK | Southwest Power Pool (SWPP) | 431.5 GWh | Nov 2019 | May 2026 | Wind |
| Deuel Harvest Wind Energy LLC | Southern Power Co | Clear Lake, SD | Midcontinent Independent System Operator, Inc. (MISO) | 1.0 TWh | Jan 2021 | May 2026 | Wind |
| Passadumkeag Windpark LLC | Southern Power Co | Greenbush, ME | ISO New England (ISNE) | 137.9 GWh | Jun 2016 | May 2026 | Wind |
| Decatur Parkway Solar Project, LLC | Southern Power Co | Bainbridge, GA | Southern Company Services, Inc. - Trans (SOCO) | 173.2 GWh | Nov 2015 | Dec 2025 | Solar |
| Decatur County Solar Project | Southern Power Co | Bainbridge, GA | Southern Company Services, Inc. - Trans (SOCO) | 41.8 GWh | Nov 2015 | Dec 2025 | Solar |
| Kay Wind, LLC | Southern Power Co | Newkirk, OK | Southwestern Power Administration (SPA) | 681.9 GWh | Nov 2015 | May 2026 | Wind |
| Stateline Solar | Southern Power Co | Nipton, CA | California Independent System Operator (CISO) | 640.1 GWh | Nov 2015 | Dec 2025 | Solar |
| Wake Wind Energy Center | Southern Power Co | Floydada, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 829.3 GWh | Sep 2016 | Dec 2025 | Wind |
| Henrietta Solar Project | Southern Power Co | Lemoore, CA | California Independent System Operator (CISO) | 170.4 GWh | Jul 2016 | Dec 2025 | Solar |
| Calipatria Solar Farm | Southern Power Co | Calipatria, CA | Imperial Irrigation District (IID) | 36.1 GWh | Jan 2016 | Dec 2025 | Solar |
| Solar Gen 2 Solar Facility | Southern Power Co | Calipatria, CA | California Independent System Operator (CISO) | 376.7 GWh | Oct 2014 | Dec 2025 | Solar |
| Rutherford Farm | Southern Power Co | Forest City, NC | Duke Energy Carolinas (DUK) | 136.2 GWh | Nov 2016 | May 2026 | Solar |
| Lost Hills/Blackwell | Southern Power Co | Lost Hills, CA | California Independent System Operator (CISO) | 58.9 GWh | Mar 2015 | Dec 2025 | Solar |
| Macho Springs | Southern Power Co | Deming, NM | El Paso Electric Company (EPE) | 124.2 GWh | Apr 2014 | Dec 2025 | Solar |
| North Star Solar | Southern Power Co | Mendota, CA | California Independent System Operator (CISO) | 133.2 GWh | May 2015 | Dec 2025 | Solar |
| Glass Sands Wind Facility | Southern Power Co | Sulphur, OK | Southwest Power Pool (SWPP) | 449.1 GWh | Oct 2021 | May 2026 | Wind |
| Skookumchuck Wind Facility | Southern Power Co | Rainier, WA | Puget Sound Energy, Inc. (PSEI) | 411.3 GWh | Oct 2020 | May 2026 | Wind |
| Millers Branch Solar | Southern Power Co | Haskell, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 178.4 GWh | - | May 2026 | Solar |
| Adobe Solar | Southern Power Co | Arvin, CA | California Independent System Operator (CISO) | 36.4 GWh | Apr 2014 | Dec 2025 | Solar |
| Apex Solar PV Power Project | Southern Power Co | North Las Vegas, NV | Nevada Power Company (NEVP) | 48.0 GWh | Jun 2012 | Dec 2025 | Solar |
| Granville Solar PV Power Project | Southern Power Co | Oxford, NC | Duke Energy Progress East (CPLE) | 4.8 GWh | Sep 2012 | Dec 2025 | Solar |
| Spectrum Solar PV Power Project | Southern Power Co | Las Vegas, NV | Nevada Power Company (NEVP) | 81.8 GWh | Aug 2013 | Dec 2025 | Solar |
| Campo Verde Solar | Southern Power Co | El Centro, CA | California Independent System Operator (CISO) | 292.7 GWh | Sep 2013 | Dec 2025 | Solar |
| Reading Wind Project | Southern Power Co | Reading, KS | Southwest Power Pool (SWPP) | 665.7 GWh | Apr 2020 | May 2026 | Wind |
| Cactus Flats Wind Energy Project | Southern Power Co | Eden, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 427.0 GWh | Jun 2018 | May 2026 | Wind |
| Gaskell West 1 Solar Facility | Southern Power Co | Lancaster, CA | California Independent System Operator (CISO) | 55.6 GWh | Feb 2018 | Dec 2025 | Solar |
| Cleveland Cnty Generating Facility | Southern Power Co | Kings Mountain, NC | Duke Energy Carolinas (DUK) | 985.8 GWh | Nov 2012 | Dec 2025 | Natural Gas : 99.5% Distillate Fuel Oil : 0.5% |
| Cimarron Solar Facility | Southern Power Co | Springer, NM | Western Area Power Administration - Rocky Mountain Region (WACM) | 60.3 GWh | Nov 2010 | Dec 2025 | Solar |
| Fairmont Wind | Southern Minnesota Mun P Agny | Fairmont, MN | Midcontinent Independent System Operator, Inc. (MISO) | 13.0 GWh | Feb 2003 | Dec 2025 | Wind |
| Redwood Falls Wind | Southern Minnesota Mun P Agny | Redwood Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 8.8 GWh | Nov 2004 | Dec 2025 | Wind |
| Owatonna Energy Station | Southern Minnesota Mun P Agny | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Feb 2018 | Dec 2025 | Natural Gas |
| SMMPA Methane Energy Facility | Southern Minnesota Mun P Agny | Mora, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Mar 2012 | Dec 2025 | Landfill Gas |
| Fairmont (MN) | Southern Minnesota Mun P Agny | Fairmont, MN | Midcontinent Independent System Operator, Inc. (MISO) | 7.9 GWh | Dec 1974 | Dec 2025 | Natural Gas : 98.8% Distillate Fuel Oil : 1.2% |
| Southern Minnesota Beet Sugar | Southern Minnesota Beet Sugar | Renville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 27.6 GWh | Aug 1976 | May 2026 | Subbituminous Coal : 70.1% Natural Gas : 29.2% Residual Fuel Oil : 0.6% |
Summary of Power Plants By State
Figures are based on May 2026 generation numbers.| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Alabama | # 8 | 77 | 11,823.92 GWh |
| Alaska | # 48 | 140 | 513.29 GWh |
| Arizona | # 14 | 196 | 9,091.99 GWh |
| Arkansas | # 25 | 117 | 4,873.33 GWh |
| California | # 4 | 1,740 | 15,360.54 GWh |
| Colorado | # 31 | 308 | 4,156.36 GWh |
| Connecticut | # 35 | 173 | 3,391.33 GWh |
| Delaware | # 49 | 35 | 236.45 GWh |
| District of Columbia | # 51 | 17 | 14.46 GWh |
| Florida | # 2 | 342 | 25,093.89 GWh |
| Georgia | # 6 | 250 | 12,138.02 GWh |
| Hawaii | # 46 | 70 | 762.50 GWh |
| Idaho | # 41 | 151 | 1,963.84 GWh |
| Illinois | # 5 | 494 | 14,816.74 GWh |
| Indiana | # 15 | 222 | 7,662.28 GWh |
| Iowa | # 21 | 297 | 5,720.38 GWh |
| Kansas | # 24 | 188 | 5,118.39 GWh |
| Kentucky | # 23 | 61 | 5,471.28 GWh |
| Louisiana | # 13 | 90 | 9,131.60 GWh |
| Maine | # 44 | 242 | 1,130.78 GWh |
| Maryland | # 37 | 228 | 3,103.37 GWh |
| Massachusetts | # 45 | 666 | 1,073.93 GWh |
| Michigan | # 11 | 276 | 9,774.25 GWh |
| Minnesota | # 28 | 790 | 4,567.82 GWh |
| Mississippi | # 20 | 60 | 6,404.61 GWh |
| Missouri | # 22 | 129 | 5,701.36 GWh |
| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 71 | 2,053.07 GWh |
| Nebraska | # 36 | 126 | 3,193.89 GWh |
| Nevada | # 33 | 117 | 3,848.29 GWh |
| New Hampshire | # 43 | 57 | 1,198.65 GWh |
| New Jersey | # 30 | 398 | 4,274.91 GWh |
| New Mexico | # 29 | 158 | 4,513.39 GWh |
| New York | # 10 | 1,064 | 10,643.78 GWh |
| North Carolina | # 9 | 913 | 11,481.42 GWh |
| North Dakota | # 34 | 59 | 3,601.34 GWh |
| Ohio | # 7 | 211 | 11,886.21 GWh |
| Oklahoma | # 17 | 144 | 7,547.66 GWh |
| Oregon | # 27 | 281 | 4,575.23 GWh |
| Pennsylvania | # 3 | 258 | 18,234.28 GWh |
| Rhode Island | # 47 | 107 | 580.94 GWh |
| South Carolina | # 16 | 209 | 7,632.32 GWh |
| South Dakota | # 42 | 53 | 1,802.78 GWh |
| Tennessee | # 19 | 99 | 6,454.94 GWh |
| Texas | # 1 | 1,019 | 50,690.02 GWh |
| Utah | # 39 | 128 | 2,809.26 GWh |
| Vermont | # 50 | 118 | 186.37 GWh |
| Virginia | # 18 | 250 | 7,445.56 GWh |
| Washington | # 12 | 134 | 9,231.20 GWh |
| West Virginia | # 32 | 41 | 4,142.41 GWh |
| Wisconsin | # 26 | 266 | 4,582.07 GWh |
| Wyoming | # 38 | 69 | 2,983.81 GWh |