Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| South Garden | South Garden LLC | Winstead, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jun 2023 | Dec 2024 | Solar |
| South Generation | Redwood Falls Public Util Comm | Redwood Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 169.0 MWh | Feb 2003 | Dec 2024 | Distillate Fuel Oil |
| South Glens Falls Hydroelectric | Boralex Hydro Operations Inc | South Glens Falls, NY | New York Independent System Operator (NYIS) | 80.4 GWh | Jul 1994 | Dec 2024 | Water |
| South Goshen Community Solar | AES Distributed Energy | Goshen, NY | New York Independent System Operator (NYIS) | 6.1 GWh | Aug 2021 | Dec 2024 | Solar |
| South Hampton | National Grid Generation LLC | Southampton, NY | New York Independent System Operator (NYIS) | 42.0 MWh | Feb 1963 | Dec 2024 | Distillate Fuel Oil |
| South Harper | Evergy Missouri West | Kansas City, MO | Southwest Power Pool (SWPP) | 284.5 GWh | Jul 2005 | Dec 2024 | Natural Gas |
| South Holston | Tennessee Valley Authority | Bristol, TN | Tennessee Valley Authority (TVA) | 120.8 GWh | Jan 1951 | Dec 2024 | Water |
| South Hurlburt Wind LLC | Caithness Shepherds Flat LLC | Arlington, OR | Bonneville Power Administration (BPAT) | 552.1 GWh | Jun 2012 | Sep 2025 | Wind |
| South Louisburg Solar | Cypress Creek Renewables | Louisburg, NC | Duke Energy Progress East (CPLE) | 9.9 GWh | Aug 2016 | Dec 2024 | Solar |
| South Main Street | Rochelle Municipal Utilities | Rochelle, IL | PJM Interconnection, LLC (PJM) | 1.3 GWh | Aug 1967 | Dec 2024 | Distillate Fuel Oil |
| South Milford Solar Plant | REUT Origination, LLC | Milford, UT | PacifiCorp East (PACE) | 7.4 GWh | Feb 2015 | Dec 2024 | Solar |
| South Mills Solar, LLC | Adapture Renewables, Inc. | Hardin, MT | NorthWestern Corporation (NWMT) | 5.1 GWh | Mar 2017 | Sep 2025 | Solar |
| South Oak Creek | Wisconsin Electric Power Co | Oak Creek, WI | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 TWh | Nov 1959 | Sep 2025 | Subbituminous Coal : 99.7% |
| South Oaks Hospital | South Oak Hospital | Amityville, NY | New York Independent System Operator (NYIS) | 6.8 GWh | Mar 2008 | Dec 2024 | Natural Gas |
| South Peak Wind | ALLETE Clean Energy | Geyser, MT | NorthWestern Corporation (NWMT) | 240.9 GWh | Mar 2020 | Sep 2025 | Wind |
| South Plains II | Onward Energy | Lockney, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 945.8 GWh | May 2016 | Sep 2025 | Wind |
| South Plains Wind Phase I | Evergreen Wind, LLC | Floydada, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 668.2 GWh | Oct 2015 | Sep 2025 | Wind |
| South Plant (CO) | City of Colorado Springs - (CO) | Colorado Springs, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 153.3 GWh | Oct 1962 | Sep 2025 | Natural Gas : 99.9% |
| South Plant (IA) | Waverly Municipal Elec Utility | Waverly, IA | Midcontinent Independent System Operator, Inc. (MISO) | 51.0 MWh | Apr 2000 | Dec 2024 | Distillate Fuel Oil |
| South Point Energy Center | South Point Energy Center LLC | Mohave Valley, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 2.0 TWh | Feb 2001 | Sep 2025 | Natural Gas |
| South River H4 Solar Energy Storage | North Carolina El Member Corp | Autryville, NC | Duke Energy Progress East (CPLE) | 595.0 MWh | Feb 2023 | Dec 2024 | Solar |
| South Robeson Farm | USF Surry, LLC | Rowland, NC | Duke Energy Progress East (CPLE) | 7.0 GWh | May 2012 | Dec 2024 | Solar |
| South Sioux City Solar | Tesla Inc. | Dakota, NE | Southwest Power Pool (SWPP) | 3.9 GWh | Nov 2016 | Dec 2024 | Solar |
| South Solar | Altus Power America Management, LLC | Pamplico, SC | Duke Energy Progress East (CPLE) | 3.6 GWh | Nov 2018 | Dec 2024 | Solar |
| South Strawberry | City of Strawberry Point | Strawberry Point, IA | Midcontinent Independent System Operator, Inc. (MISO) | 13.0 MWh | Dec 2001 | Dec 2024 | Distillate Fuel Oil |
| South Street - Middlebury | Greenbacker Renewable Energy Corporation | Middlebury, VT | ISO New England (ISNE) | 3.4 GWh | Nov 2023 | Dec 2024 | Solar |
| South Texas Project | STP Nuclear Operating Co | Wadsworth, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 21.8 TWh | Jul 1988 | Sep 2025 | Nuclear |
| South Trent Wind Farm | NRG Energy Inc | Sweetwater, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 252.5 GWh | Dec 2008 | Dec 2024 | Wind |
| South Valley Solar Energy Center | PNM Resources | Albuquerque, NM | Public Service Company of New Mexico (PNM) | 25.0 GWh | Nov 2015 | Dec 2024 | Solar |
| South Windsor Fuel Cell | South Energy Investments LLC | South Windsor, CT | ISO New England (ISNE) | 38.9 GWh | Feb 2020 | Dec 2024 | Natural Gas |
| South Winston Farm, LLC | Cypress Creek Renewables | Winston-Salem, NC | Duke Energy Carolinas (DUK) | 8.8 GWh | Dec 2015 | Dec 2024 | Solar |
| Southampton Power Station | Virginia Electric & Power Co | Franklin, VA | PJM Interconnection, LLC (PJM) | 318.5 GWh | Feb 1992 | Dec 2024 | Wood/Wood Waste Solids : 99.7% |
| Southampton Solar, LLC | Dominion Renewable Energy | Newsoms, VA | PJM Interconnection, LLC (PJM) | 178.1 GWh | Oct 2017 | Sep 2025 | Solar |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 3.1 GWh | Jan 2019 | Dec 2024 | Solar |
| Southbridge Landfill Gas-to-Energy | Southbridge Recycling and Disposal Park | Southbridge, MA | ISO New England (ISNE) | 11.9 GWh | Sep 2011 | Dec 2024 | Landfill Gas |
| Southbridge PV | Terraform Arcadia | Southbridge, MA | ISO New England (ISNE) | 4.4 GWh | Dec 2013 | Dec 2024 | Solar |
| Southbridge Solar | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 2.2 GWh | Feb 2016 | Sep 2025 | Solar |
| Southeast Berrien Generating Facility | North American Natural Res | Niles, MI | PJM Interconnection, LLC (PJM) | 23.6 GWh | Apr 2009 | Dec 2024 | Landfill Gas |
| Southeast Kern River Cogen | Chevron USA Inc | Bakersfield, CA | California Independent System Operator (CISO) | 47.1 GWh | Jan 1989 | Sep 2025 | Natural Gas |
| Southeast Resource Recovery | SERRF Joint Powers Authority | Long Beach, CA | California Independent System Operator (CISO) | 89.9 GWh | Jun 1988 | Mar 2024 | Non-biogenic Municipal Solid Waste : 51.7% Biogenic Municipal Solid Waste : 42.3% Natural Gas : 6.1% |
| Southerland Farm Solar | Strata Manager, LLC | Henderson, NC | Duke Energy Progress East (CPLE) | 9.5 GWh | Oct 2016 | Dec 2024 | Solar |
| Southern Current One, LLC | Southern Current One, LLC | Fairfax, SC | Dominion Energy South Carolina, Inc. (SCEG) | 14.4 GWh | Nov 2017 | Dec 2024 | Solar |
| Southern Hills Wind Farm | MidAmerican Energy Co | Creston, IA | Midcontinent Independent System Operator, Inc. (MISO) | 827.8 GWh | Feb 2021 | Sep 2025 | Wind |
| Southern Minnesota Beet Sugar | Southern Minnesota Beet Sugar | Renville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 24.3 GWh | Aug 1976 | Sep 2025 | Subbituminous Coal : 70.9% Natural Gas : 28.5% Residual Fuel Oil : 0.6% |
| Southern Sky Renew Energy Berkley LLC | Southern Sky Renewable Energy Berkley, LLC | Berkley, MA | ISO New England (ISNE) | 3.4 GWh | May 2014 | Dec 2024 | Solar |
| Southfork Solar | Florida Power & Light Co | Parrish, FL | Florida Power & Light Co. (FPL) | 129.1 GWh | Mar 2020 | Sep 2025 | Solar |
| Southington Solar One | DG Connecticut III, LLC | Southington, CT | ISO New England (ISNE) | 8.8 GWh | Jan 2022 | Dec 2024 | Solar |
| Southold | National Grid Generation LLC | Greenport, NY | New York Independent System Operator (NYIS) | 686.0 MWh | Jul 1964 | Dec 2024 | Distillate Fuel Oil |
| Southside SD | Entegrity Solar Southside SD, LLC | Little Rock, AR | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | May 2023 | Dec 2024 | Solar |
| Southside Water Reclamation Plant | Albuquerque City of | Albuquerque, NM | Public Service Company of New Mexico (PNM) | 17.0 GWh | Jan 1987 | Sep 2025 | Other Biomass Gas : 81.4% Natural Gas : 18.6% |
| Southwark | Constellation Power, Inc | Philadelphia, PA | PJM Interconnection, LLC (PJM) | 119.0 MWh | May 1967 | Dec 2024 | Distillate Fuel Oil |
| Southwest Arkansas Electric | Today's Power, Inc. | Texarkana, AR | Southwest Power Pool (SWPP) | 2.2 GWh | Jan 2020 | Dec 2024 | Solar |
| Southwestern | Public Service Co of Oklahoma | Anadarko, OK | Southwest Power Pool (SWPP) | 779.4 GWh | Jun 1952 | Dec 2024 | Natural Gas |
| Southwestern Bell Telephone | AT&T | St. Louis, MO | Midcontinent Independent System Operator, Inc. (MISO) | 116.0 MWh | Jan 1992 | Aug 2025 | Distillate Fuel Oil |
| Southwick | Power Depot Group A, LLC | Houston, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 111.0 MWh | Oct 2013 | Dec 2024 | Distillate Fuel Oil |
| Southwick Solar | Southwick Solar, LLC | Graham, NC | Duke Energy Carolinas (DUK) | 5.8 GWh | Nov 2020 | Dec 2024 | Solar |
| Southwick Solar PV | NSTAR Electric Company | Southwick, MA | ISO New England (ISNE) | 8.2 GWh | Dec 2018 | Sep 2025 | Solar |
| Sowega Power | SOWEGA Power LLC | Baconton, GA | Southern Company Services, Inc. - Trans (SOCO) | 53.4 GWh | May 1999 | Nov 2024 | Natural Gas |
| SPA Cogen 3 | Sacramento Municipal Util Dist | Sacramento, CA | Balancing Authority of Northern California (BANC) | 531.2 GWh | Nov 1997 | Sep 2025 | Natural Gas |
| Space Coast Next Gen Solar Energy | Florida Power & Light Co | Merritt Island, FL | Florida Power & Light Co. (FPL) | 8.6 GWh | Mar 2010 | Dec 2024 | Solar |
| Spalding | Village of Spalding - (NE) | Spalding, NE | Southwest Power Pool (SWPP) | 4.0 MWh | Jun 1919 | Dec 2024 | Water : 50.0% Distillate Fuel Oil : 50.0% |
| Spanish Fork | Strawberry Water Users Assn | Spanish Fork, UT | PacifiCorp East (PACE) | 14.5 GWh | Sep 1937 | Dec 2024 | Water |
| Spanish Fork Community Solar | Utah Municipal Power Agency | Spanish Fork, UT | PacifiCorp East (PACE) | 7.3 GWh | Jun 2021 | Dec 2024 | Solar |
| Spanish Fork Wind Park 2 LLC | Spanish Fork Wind Park 2, LLC | Spanish Fork, UT | PacifiCorp East (PACE) | 46.6 GWh | Jun 2008 | Sep 2025 | Wind |
| Spanish Peaks Solar | Spanish Peaks Solar LLC | Trinidad, CO | Public Service Company of Colorado (PSCO) | 281.5 GWh | Nov 2024 | Sep 2025 | Solar |
| Spano Solar - Belmar Wall | Belmar Gateway Solar LLC | Belmar, NJ | New York Independent System Operator (NYIS) | 2.0 GWh | Oct 2022 | Dec 2024 | Solar |
| Spano Solar - Ocean County Landfill - CS | Distributed Solar Development, LLC | Manchester Township, NJ | PJM Interconnection, LLC (PJM) | 4.2 GWh | Sep 2022 | Dec 2024 | Solar |
| Sparkleberry | Florida Power & Light Co | Molino, FL | Florida Power & Light Co. (FPL) | 165.7 GWh | Feb 2024 | Sep 2025 | Solar |
| Sparta Solar | Sparta Solar, LLC | Pawnee, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 475.3 GWh | Mar 2024 | Sep 2025 | Solar |
| Spartan | Altus Power America Management, LLC | North Hanover, NJ | PJM Interconnection, LLC (PJM) | 13.2 GWh | Feb 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 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 |
| Spartanburg Water System | Spartanburg Commissioners PW | Chesnee, SC | Duke Energy Carolinas (DUK) | 2.1 GWh | Dec 1925 | Sep 2025 | Water : 91.8% Distillate Fuel Oil : 8.2% |
| Spaulding 1 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 17.6 GWh | Apr 1928 | Dec 2024 | Water |
| Spaulding 3 | Pacific Gas & Electric Co. | Emigrant Gap, CA | California Independent System Operator (CISO) | 15.6 GWh | Jan 1929 | Dec 2024 | Water |
| Spearfish Hydro | City of Spearfish | Spearfish, SD | Western Area Power Administration - Rocky Mountain Region (WACM) | 19.9 GWh | Sep 1912 | Dec 2024 | Water |
| Spearville | Evergy Metro | Ford, KS | Southwest Power Pool (SWPP) | 133.6 GWh | Aug 2006 | Dec 2024 | Wind |
| Spearville 3 LLC | EDF Renewable Asset Holdings, Inc. | Spearville, KS | Southwest Power Pool (SWPP) | 170.4 GWh | Sep 2012 | Dec 2024 | Wind |
| Speckled Perch | Florida Power & Light Co | TBD, FL | Florida Power & Light Co. (FPL) | 148.7 GWh | - | Sep 2025 | Solar |
| Spectrum Solar Hybrid | Spectrum Solar LLC | Oxon Hill, MD | PJM Interconnection, LLC (PJM) | 10.7 GWh | Nov 2023 | Dec 2024 | Solar |
| Spectrum Solar PV Power Project | Southern Power Co | Las Vegas, NV | Nevada Power Company (NEVP) | 84.0 GWh | Aug 2013 | Dec 2024 | Solar |
| Speedway Solar, LLC | Speedway Solar, LLC | Morrison Town, IN | Midcontinent Independent System Operator, Inc. (MISO) | 154.0 GWh | - | Sep 2025 | Solar |
| Speedway Solar NC, LLC | Duke Energy Renewables Services | Midland, NC | Duke Energy Carolinas (DUK) | 33.7 GWh | Nov 2021 | Dec 2024 | Solar |
| Spencer | City of Garland - (TX) | Denton, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 10.8 GWh | May 1966 | Nov 2024 | Natural Gas |
| Spencer Farm, LLC | Strata Manager, LLC | Salisbury, NC | Duke Energy Carolinas (DUK) | 9.5 GWh | Mar 2017 | Dec 2024 | Solar |
| Spencer Gas Turbine | City of Spencer - (IA) | Spencer, IA | Midcontinent Independent System Operator, Inc. (MISO) | 651.0 MWh | Dec 1969 | Dec 2024 | Kerosene |
| Spencer Meadow Solar Energy Storage | North Carolina El Member Corp | Asheboro, NC | Duke Energy Progress East (CPLE) | 3.7 GWh | Dec 2021 | Dec 2024 | Solar |
| Spencer (NY) | Generate Capital | Candor, NY | New York Independent System Operator (NYIS) | 7.0 GWh | Dec 2023 | Dec 2024 | Solar |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 3.6 GWh | Feb 2020 | Dec 2024 | Solar |
| SPI Anderson 2 | Sierra Pacific Industries | Anderson, CA | California Independent System Operator (CISO) | 138.5 GWh | Jul 2015 | Oct 2024 | Wood/Wood Waste Solids : 99.0% Natural Gas : 1.0% |
| Spica Community Solar | Spica Community Solar | Lake Lillian, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.2 GWh | Jul 2017 | Dec 2024 | Solar |
| Spicer Meadow Project | Northern California Power Agny | Murphys, CA | California Independent System Operator (CISO) | 21.6 GWh | Oct 1989 | Dec 2024 | Water |
| Spicewood Solar Farm LLC | Strata Manager, LLC | Eagle Springs, NC | Duke Energy Progress East (CPLE) | 9.0 GWh | Jun 2014 | Dec 2024 | Solar |
| Spier Falls | Erie Boulevard Hydropower LP | Gansevoort, NY | New York Independent System Operator (NYIS) | 249.0 GWh | Dec 1923 | Sep 2024 | Water |
| Spillway | South Carolina Public Service Authority | Pineville, SC | South Carolina Public Service Authority (SC) | 5.6 GWh | Jul 1950 | Aug 2024 | Water |
| Spindle Hill Energy Center | Invenergy Services LLC | Fort Lupton, CO | Public Service Company of Colorado (PSCO) | 752.2 GWh | Apr 2007 | Sep 2025 | Natural Gas |
| Spinning Spur Wind II | EDF Renewable Asset Holdings, Inc. | Adrian, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 516.4 GWh | Jun 2014 | Dec 2024 | Wind |
| Spinning Spur Wind III | Boralex US Operations LLC | Adrian, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 815.8 GWh | Aug 2015 | Dec 2024 | Wind |
| Spinning Spur Wind LLC | EDF Renewable Asset Holdings, Inc. | Vegas, TX | Southwest Power Pool (SWPP) | 334.2 GWh | Oct 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 |
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 |