Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| 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 |
| Spooner Solar Array | Onsite Partners, LLC | Spooner, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.6 GWh | May 2019 | Dec 2024 | Solar |
| Spokane Waste to Energy | City of Spokane - (WA) | Spokane, WA | Avista Corporation (AVA) | 132.4 GWh | Aug 1991 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Split Rail Solar Energy LLC | Invenergy Services LLC | Warrenton, MO | Midcontinent Independent System Operator, Inc. (MISO) | 102.2 GWh | - | May 2026 | Solar |
| Spiritwood Station | Great River Energy | Spiritwood, ND | Midcontinent Independent System Operator, Inc. (MISO) | 212.8 GWh | Oct 2014 | May 2026 | Natural Gas : 58.1% Refined Coal : 41.9% |
| Spirit Mountain | U S Bureau of Reclamation | Cody, WY | Western Area Power Administration - Upper Great Plains West (WAUW) | 16.1 GWh | Sep 1994 | Oct 2025 | Water |
| Spirit Mound | Basin Electric Power Coop | Vermillion, SD | Southwest Power Pool (SWPP) | 3.5 GWh | May 1978 | Jan 2026 | Distillate Fuel Oil |
| Spion Kop Wind Farm | NorthWestern Energy (MT wind/thermal) | Geyser, MT | NorthWestern Corporation (NWMT) | 97.7 GWh | Nov 2012 | Dec 2025 | Wind |
| Spinning Spur Wind LLC | EDF Renewable Asset Holdings, Inc. | Vegas, TX | Southwest Power Pool (SWPP) | 347.0 GWh | Oct 2012 | Dec 2025 | Wind |
| Spinning Spur Wind III | Boralex US Operations LLC | Adrian, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 718.6 GWh | Aug 2015 | Dec 2025 | Wind |
| Spinning Spur Wind II | EDF Renewable Asset Holdings, Inc. | Adrian, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 381.2 GWh | Jun 2014 | Dec 2025 | Wind |
| Spindle Hill Energy Center | Invenergy Services LLC | Fort Lupton, CO | Public Service Company of Colorado (PSCO) | 516.7 GWh | Apr 2007 | May 2026 | Natural Gas |
| Spillway | South Carolina Public Service Authority | Pineville, SC | South Carolina Public Service Authority (SC) | 4.8 GWh | Jul 1950 | Dec 2025 | Water |
| Spicewood Solar Farm LLC | Strata Manager, LLC | Eagle Springs, NC | Duke Energy Progress East (CPLE) | 9.1 GWh | Jun 2014 | Dec 2025 | Solar |
| Spicer Meadow Project | Northern California Power Agny | Murphys, CA | California Independent System Operator (CISO) | 14.4 GWh | Oct 1989 | Dec 2025 | Water |
| Spica Community Solar | Spica Community Solar | Lake Lillian, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.3 GWh | Jul 2017 | Dec 2025 | Solar |
| SPI Anderson 2 | Sierra Pacific Industries | Anderson, CA | California Independent System Operator (CISO) | 122.1 GWh | Jul 2015 | Dec 2025 | Wood/Wood Waste Solids : 99.3% Natural Gas : 0.7% |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 4.0 GWh | Feb 2020 | Dec 2025 | Solar |
| Spencer (NY) | Generate Capital | Candor, NY | New York Independent System Operator (NYIS) | 9.1 GWh | Dec 2023 | Dec 2025 | Solar |
| Spencer Meadow Solar Energy Storage | North Carolina El Member Corp | Asheboro, NC | Duke Energy Progress East (CPLE) | 3.7 GWh | Dec 2021 | Dec 2025 | Solar |
| Spencer Gas Turbine | City of Spencer - (IA) | Spencer, IA | Midcontinent Independent System Operator, Inc. (MISO) | 86.0 MWh | Dec 1969 | Dec 2025 | Kerosene |
| Spencer Farm, LLC | Strata Manager, LLC | Salisbury, NC | Duke Energy Carolinas (DUK) | 9.0 GWh | Mar 2017 | Dec 2025 | Solar |
| Spencer | City of Garland - (TX) | Denton, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 19.7 GWh | May 1966 | Nov 2025 | Natural Gas |
| Speedway Solar NC, LLC | Duke Energy Renewables Services | Midland, NC | Duke Energy Carolinas (DUK) | 39.6 GWh | Nov 2021 | 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 |
| Speedway North Bldg 1-sllas701 | Prologis Logistics Services Incorporated | Las Vegas, NV | Nevada Power Company (NEVP) | 582.0 MWh | Jun 2023 | 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 |
| Spectrum Solar Hybrid | Spectrum Solar LLC | Oxon Hill, MD | PJM Interconnection, LLC (PJM) | 10.7 GWh | Nov 2023 | Dec 2025 | Solar |
| Speckled Perch | Florida Power & Light Co | TBD, FL | Florida Power & Light Co. (FPL) | 189.7 GWh | Dec 2024 | May 2026 | Solar |
| Spearville 3 LLC | EDF Renewable Asset Holdings, Inc. | Spearville, KS | Southwest Power Pool (SWPP) | 170.5 GWh | Sep 2012 | Dec 2025 | Wind |
| Spearville | Evergy Metro | Ford, KS | Southwest Power Pool (SWPP) | 128.1 GWh | Aug 2006 | Dec 2025 | Wind |
| Spearfish Hydro | City of Spearfish - (SD) | Spearfish, SD | Western Area Power Administration - Rocky Mountain Region (WACM) | 18.4 GWh | Sep 1912 | Dec 2025 | Water |
| Spaulding 3 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 16.9 GWh | Jan 1929 | Dec 2025 | Water |
| Spaulding 2 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 21.0 MWh | Jun 1928 | Nov 2025 | Water |
| Spaulding 1 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 17.4 GWh | Apr 1928 | Dec 2025 | Water |
| 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% |
| Spartan PV 1, LLC | NJR Clean Energy Ventures Corporation | East Lansing, MI | Midcontinent Independent System Operator, Inc. (MISO) | 12.0 GWh | Nov 2017 | Dec 2024 | Solar |
| Spartan Hills LLC | CHI Operations Inc | Lake Benton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | Dec 2000 | Dec 2024 | Wind |
| Spartan | Altus Power America Management, LLC | North Hanover, NJ | PJM Interconnection, LLC (PJM) | 13.5 GWh | Feb 2017 | Dec 2025 | Solar |
| Sparta Solar | Sparta Solar, LLC | Pawnee, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 481.0 GWh | Mar 2024 | May 2026 | Solar |
| Sparkleberry | Florida Power & Light Co | Molino, FL | Florida Power & Light Co. (FPL) | 165.2 GWh | Feb 2024 | May 2026 | Solar |
| Spano Solar - Ocean County Landfill - CS | Distributed Solar Development, LLC | Manchester Township, NJ | PJM Interconnection, LLC (PJM) | 1.3 GWh | Sep 2022 | Dec 2025 | Solar |
| Spano Solar - Belmar Wall | Belmar Gateway Solar LLC | Belmar, NJ | New York Independent System Operator (NYIS) | 255.0 MWh | Oct 2022 | Dec 2025 | 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 |
| Spanish Fork Community Solar | Utah Municipal Power Agency | Spanish Fork, UT | PacifiCorp East (PACE) | 7.4 GWh | Jun 2021 | Dec 2025 | Solar |
| Spanish Fork | Strawberry Water Users Assn | Spanish Fork, UT | PacifiCorp East (PACE) | 14.5 GWh | Sep 1937 | Dec 2024 | Water |
| Spalding | Village of Spalding - (NE) | Spalding, NE | Southwest Power Pool (SWPP) | 3.0 MWh | Jun 1919 | Dec 2025 | Water : 66.7% Distillate Fuel Oil : 33.3% |
| Space Coast Next Gen Solar Energy | Florida Power & Light Co | Merritt Island, FL | Florida Power & Light Co. (FPL) | 10.5 GWh | Mar 2010 | Dec 2025 | Solar |
| SP-425 Memphis | Madison Energy Investments LLC | Memphis, NY | New York Independent System Operator (NYIS) | 6.2 GWh | Jun 2025 | Dec 2025 | Solar |
| SP-339 Mechanic Falls | Madison Energy Investments LLC | Mechanic Falls, ME | ISO New England (ISNE) | 1.4 GWh | Nov 2024 | Dec 2025 | Solar |
| SP-231 Clifton | Madison Energy Investments LLC | Clifton, ME | ISO New England (ISNE) | 5.4 GWh | Nov 2024 | Dec 2025 | Solar |
| 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% |
| Southwick Solar PV | NSTAR Electric Company | Southwick, MA | ISO New England (ISNE) | 7.9 GWh | Dec 2018 | May 2026 | Solar |
| Southwick Solar, LLC Community Solar | Navisun LLC | Southwick, MA | ISO New England (ISNE) | 3.5 GWh | Apr 2025 | Dec 2025 | Solar |
| Southwick Solar | SunStrong Management | Graham, NC | Duke Energy Carolinas (DUK) | 5.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Southwick | Power Depot Group A, LLC | Houston, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 65.0 MWh | Oct 2013 | Dec 2025 | Distillate Fuel Oil |
| Southwestern Bell Telephone | AT&T | St. Louis, MO | Midcontinent Independent System Operator, Inc. (MISO) | 105.0 MWh | Jan 1992 | Apr 2026 | Distillate Fuel Oil |
| Southwestern | Public Service Co of Oklahoma | Anadarko, OK | Southwest Power Pool (SWPP) | 779.4 GWh | Jun 1952 | Dec 2024 | Natural Gas |
| Southwest Arkansas Electric | Today's Power, Inc. | Texarkana, AR | Southwest Power Pool (SWPP) | 2.1 GWh | Jan 2020 | Dec 2025 | Solar |
| Southwark | Constellation Power, Inc | Philadelphia, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | May 1967 | Dec 2025 | Distillate Fuel Oil |
| Southside Water Reclamation Plant | Albuquerque City of | Albuquerque, NM | Public Service Company of New Mexico (PNM) | 20.5 GWh | Jan 1987 | May 2026 | Other Biomass Gas : 63.1% Natural Gas : 36.9% |
| Southside SD | Entegrity Solar Southside SD, LLC | Little Rock, AR | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | May 2023 | Dec 2024 | Solar |
| Southold | National Grid Generation LLC | Greenport, NY | New York Independent System Operator (NYIS) | 483.0 MWh | Jul 1964 | Dec 2025 | Distillate Fuel Oil |
| Southington Solar One | DG Connecticut III, LLC | Southington, CT | ISO New England (ISNE) | 9.1 GWh | Jan 2022 | Dec 2025 | Solar |
| Southfork Solar | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 167.9 GWh | Mar 2020 | May 2026 | Solar |
| 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 |
| 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% |
| Southern Hills Wind Farm | MidAmerican Energy Co | Creston, IA | Midcontinent Independent System Operator, Inc. (MISO) | 808.2 GWh | Feb 2021 | May 2026 | Wind |
| Southern Current One, LLC | SunStrong Management | Fairfax, SC | Dominion Energy South Carolina, Inc. (SCEG) | 12.1 GWh | Nov 2017 | Dec 2025 | Solar |
| Southerland Farm Solar | Strata Manager, LLC | Henderson, NC | Duke Energy Progress East (CPLE) | 8.7 GWh | Oct 2016 | Dec 2025 | Solar |
| Southeast Kern River Cogen | Chevron USA Inc | Bakersfield, CA | California Independent System Operator (CISO) | 30.5 GWh | Jan 1989 | May 2026 | Natural Gas |
| Southeast Berrien Generating Facility | North American Natural Res | Niles, MI | PJM Interconnection, LLC (PJM) | 20.5 GWh | Apr 2009 | Dec 2025 | Landfill Gas |
| Southcentral Power Project | Chugach Electric Assn Inc | Anchorage, AK | 1.1 TWh | Dec 2012 | Dec 2025 | Natural Gas | |
| Southbridge Solar | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 2.2 GWh | Feb 2016 | Mar 2026 | Solar |
| Southbridge PV | Terraform Arcadia | Southbridge, MA | ISO New England (ISNE) | 3.8 GWh | Dec 2013 | Dec 2025 | Solar |
| Southbridge Landfill Gas-to-Energy | Southbridge Recycling and Disposal Park | Southbridge, MA | ISO New England (ISNE) | 9.6 GWh | Sep 2011 | Dec 2025 | Landfill Gas |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 2.6 GWh | Jan 2019 | Dec 2025 | Solar |
| Southampton Solar, LLC | Dominion Renewable Energy | Newsoms, VA | PJM Interconnection, LLC (PJM) | 179.6 GWh | Oct 2017 | May 2026 | Solar |
| Southampton Power Station | Virginia Electric & Power Co | Franklin, VA | PJM Interconnection, LLC (PJM) | 252.8 GWh | Feb 1992 | Dec 2025 | Wood/Wood Waste Solids : 99.6% |
| South Winston Farm, LLC | Cypress Creek Renewables | Winston-Salem, NC | Duke Energy Carolinas (DUK) | 8.0 GWh | Dec 2015 | Dec 2025 | Solar |
| South Windsor Fuel Cell | South Energy Investments LLC | South Windsor, CT | ISO New England (ISNE) | 37.4 GWh | Feb 2020 | Dec 2025 | Natural Gas |
| South Valley Solar Energy Center | PNM Resources | Albuquerque, NM | Public Service Company of New Mexico (PNM) | 26.5 GWh | Nov 2015 | Dec 2025 | Solar |
| South Trent Wind Farm | NRG Energy Inc | Sweetwater, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 272.3 GWh | Dec 2008 | Dec 2025 | Wind |
| South Texas Project | STP Nuclear Operating Co | Wadsworth, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 20.6 TWh | Jul 1988 | May 2026 | Nuclear |
| South Tampa Resilience Project | Tampa Electric Co | Tampa, FL | Tampa Electric Company (TEC) | 22.6 GWh | Jan 2025 | Dec 2025 | Natural Gas |
| South Street - Middlebury | Greenbacker Renewable Energy Corporation | Middlebury, VT | ISO New England (ISNE) | 9.0 GWh | Nov 2023 | Dec 2025 | Solar |
| South Strawberry | City of Strawberry Point -(IA) | Strawberry Point, IA | Midcontinent Independent System Operator, Inc. (MISO) | 13.0 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| South Solar | Altus Power America Management, LLC | Pamplico, SC | Duke Energy Progress East (CPLE) | 3.9 GWh | Nov 2018 | Dec 2025 | Solar |
| South Sioux City Solar | Tesla Inc. | Dakota, NE | Southwest Power Pool (SWPP) | 3.5 GWh | Nov 2016 | Dec 2025 | Solar |
| South Robeson Farm | USF Surry, LLC | Rowland, NC | Duke Energy Progress East (CPLE) | 6.5 GWh | May 2012 | Dec 2025 | Solar |
| South River H4 Solar Energy Storage | North Carolina El Member Corp | Autryville, NC | Duke Energy Progress East (CPLE) | 834.0 MWh | Feb 2023 | Dec 2025 | Solar |
| South Point Energy Center | South Point Energy Center LLC | Mohave Valley, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.6 TWh | Feb 2001 | May 2026 | Natural Gas |
| South Plant (IA) | Waverly Municipal Elec Utility - (IA) | Waverly, IA | Midcontinent Independent System Operator, Inc. (MISO) | 71.0 MWh | Apr 2000 | Dec 2025 | Distillate Fuel Oil |
| South Plant (CO) | City of Colorado Springs - (CO) | Colorado Springs, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 145.7 GWh | Oct 1962 | May 2026 | Natural Gas : 99.9% |
| South Plains Wind Phase I | Evergreen Wind, LLC | Floydada, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 715.3 GWh | Oct 2015 | May 2026 | Wind |
| South Plains II | Onward Energy | Lockney, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.0 TWh | May 2016 | May 2026 | Wind |
| South Peak Wind | ALLETE Clean Energy | Geyser, MT | NorthWestern Corporation (NWMT) | 272.5 GWh | Mar 2020 | May 2026 | Wind |
| South Oaks Hospital | South Oak Hospital | Amityville, NY | New York Independent System Operator (NYIS) | 7.1 GWh | Mar 2008 | Dec 2025 | Natural Gas |
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 |