Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Osceola Solar Facility | Duke Energy Florida, LLC | Kenansville, FL | Duke Energy Florida, Inc. (FPC) | 4.6 GWh | Feb 2016 | Dec 2025 | Solar |
| Osceola Windpower II | Osceola Windpower II | Harris, IA | Midcontinent Independent System Operator, Inc. (MISO) | 191.6 GWh | Aug 2008 | Aug 2026 | Wind |
| Osceola Windpower LLC | Osceola Windpower LLC | Harris, IA | Southwest Power Pool (SWPP) | 386.2 GWh | Jun 2008 | Aug 2026 | Wind |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2012 | Dec 2025 | Solar |
| Oskaloosa | Today's Power, Inc. | Oskaloosa, KS | Southwest Power Pool (SWPP) | 2.1 GWh | Apr 2021 | Dec 2025 | Solar |
| OSLH, LLC | SunStrong Management | Bend, OR | PacifiCorp West (PACW) | 20.7 GWh | Nov 2016 | Dec 2025 | Solar |
| Osmond 1 | Northeast Power | Osmond, NE | Southwest Power Pool (SWPP) | 2.0 MWh | Nov 2023 | Dec 2025 | Distillate Fuel Oil |
| Oso Grande Wind Farm | Tucson Electric Power Co | Maljamar, NM | Tucson Electric Power (TEPC) | 592.7 GWh | Apr 2021 | Aug 2026 | Wind |
| Osprey Energy Center Power Plant | Duke Energy Florida, LLC | Auburndale, FL | Tampa Electric Company (TEC) | 3.4 TWh | Apr 2004 | Aug 2026 | Natural Gas |
| Ostrea Solar, LLC | Cypress Creek Renewables | Moxee, WA | Bonneville Power Administration (BPAT) | 68.5 GWh | - | Aug 2026 | Solar |
| Oswegatchie | Erie Boulevard Hydropower LP | Edwards, NY | New York Independent System Operator (NYIS) | 7.0 GWh | Jul 2002 | Dec 2025 | Water |
| Oswego | NY USLE Oswego SR104 LLC | Oswego, NY | New York Independent System Operator (NYIS) | 7.3 GWh | Aug 2023 | Dec 2025 | Solar |
| Oswego County Energy Recovery | Oswego County - (NY) | Fulton, NY | New York Independent System Operator (NYIS) | 5.6 GWh | Jan 1986 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Oswego County - Fulton Solar | Tesla Inc. | Fulton, NY | New York Independent System Operator (NYIS) | 1.5 GWh | May 2018 | Dec 2025 | Solar |
| Oswego Falls East | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 22.2 GWh | Dec 1913 | Dec 2025 | Water |
| Oswego Falls West | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Dec 1913 | Dec 2025 | Water |
| Oswego Harbor Power | Oswego Harbor Power | Oswego, NY | New York Independent System Operator (NYIS) | 116.9 GWh | May 1975 | Aug 2026 | Residual Fuel Oil : 96.5% Natural Gas : 3.5% |
| Otarre Solar Park | TIG Sun Energy IV, LLC | Cayce, SC | Dominion Energy South Carolina, Inc. (SCEG) | 2.8 GWh | Nov 2017 | Dec 2025 | Solar |
| Otay Mesa Generating Project | Otay Mesa Energy Center LLC | San Diego, CA | California Independent System Operator (CISO) | 1.2 TWh | Sep 2009 | Aug 2026 | Natural Gas |
| Otero Solar | PNM Resources | La Luz, NM | Public Service Company of New Mexico (PNM) | 17.6 GWh | Nov 2013 | Dec 2025 | Solar |
| OTHERBenEKDallas | Generate ER-NG, LLC | Dallas, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 306.0 MWh | Apr 2023 | Dec 2025 | Natural Gas |
| OTHERChildrensPlano | Generate ER-NG, LLC | Plano, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 112.0 MWh | Nov 2025 | Dec 2025 | Natural Gas |
| OTHERCitizensHospital | Texas Microgrid, LLC | Victoria, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 588.0 MWh | Mar 2020 | Dec 2025 | Natural Gas |
| OTHERNFBWA | Texas Microgrid, LLC | Houston, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 255.0 MWh | Jan 2021 | Dec 2025 | Natural Gas |
| OTHERTexasA&M | Texas Microgrid, LLC | Bryan, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.6 GWh | Apr 2018 | Dec 2025 | Natural Gas |
| OTHERTraditionBuffalo | Texas Microgrid, LLC | Houston, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 79.0 MWh | May 2024 | Dec 2025 | Natural Gas |
| OTHERTraditionClearfork | Texas Microgrid, LLC | Fort Worth, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 233.0 MWh | Mar 2023 | Dec 2025 | Natural Gas |
| Otis Elevator Company Solar | Otis Elevator Company | Florence, SC | Duke Energy Carolinas (DUK) | 1.7 GWh | Apr 2018 | Dec 2025 | Solar |
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 40.3 GWh | Dec 1984 | Aug 2026 | Water |
| Otoe Solar Power Generation Station 1 LL | AES Distributed Energy | Apple Valley, CA | California Independent System Operator (CISO) | 3.5 GWh | Nov 2013 | Dec 2025 | Solar |
| Otsego Mill Power Plant | Otsego Paper Inc | Otsego, MI | Midcontinent Independent System Operator, Inc. (MISO) | 162.5 GWh | Oct 1995 | Dec 2025 | Natural Gas |
| Ottauquechee Hydro | Green Mountain Power Corp | N. Hartland, VT | ISO New England (ISNE) | 2.8 GWh | Mar 1983 | Dec 2025 | Water |
| Otter Creek Ethanol Poet - Ashton | Otter Creek Ethanol LLC - Poet Ashton | Ashton, IA | Midcontinent Independent System Operator, Inc. (MISO) | 44.7 GWh | Feb 2004 | Aug 2026 | Natural Gas |
| Otter Creek Solar | Dominion Energy Inc. | Chase City, VA | PJM Interconnection, LLC (PJM) | 119.2 GWh | Sep 2023 | Aug 2026 | Solar |
| Otter Creek Wind Farm LLC | Avangrid Power LLC | Ransom, IL | PJM Interconnection, LLC (PJM) | 457.7 GWh | Feb 2020 | Aug 2026 | Wind |
| Ottumwa | Interstate Power and Light Co | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 3.5 TWh | Apr 1981 | Aug 2026 | Subbituminous Coal : 99.6% |
| Ottumwa City of | City of Ottumwa - (IA) | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 2.9 GWh | Jul 1931 | Dec 2025 | Water |
| OU Spirit Wind Farm | Oklahoma Gas & Electric Co | Woodward, OK | Southwest Power Pool (SWPP) | 127.1 GWh | Nov 2009 | Dec 2025 | Wind |
| Ouachita | Entergy Louisiana LLC | Sterlington, LA | Midcontinent Independent System Operator, Inc. (MISO) | 4.4 TWh | Jul 2002 | Aug 2026 | Natural Gas |
| Ouchchy PV1 | Strata Manager, LLC | Mebane, NC | Duke Energy Carolinas (DUK) | 5.2 GWh | Nov 2015 | Dec 2025 | Solar |
| Our Katahdin | Greenbacker Renewable Energy Corporation | Millenocket, ME | ISO New England (ISNE) | 5.8 GWh | Nov 2024 | Dec 2025 | Solar |
| Outback Solar At Christmas Valley | Outback Solar, LLC | Christmas Valley, OR | Bonneville Power Administration (BPAT) | 8.8 GWh | Sep 2012 | Dec 2025 | Solar |
| Overall Road Station | City of Farmington - (MO) | Farmington, MO | Midcontinent Independent System Operator, Inc. (MISO) | 29.0 MWh | Feb 2003 | Dec 2025 | Distillate Fuel Oil |
| Overhill Solar | Strata Manager, LLC | Clinton, NC | Duke Energy Carolinas (DUK) | 10.1 GWh | Feb 2022 | Dec 2025 | Solar |
| Overland | Greenbacker Renewable Energy Corporation | Hudson, CO | Public Service Company of Colorado (PSCO) | 22.1 GWh | Nov 2024 | Dec 2025 | Solar |
| Overlook | Westbound Solar 3, LLC | Westminster, MA | ISO New England (ISNE) | 6.8 GWh | Feb 2023 | Dec 2025 | Solar |
| Overlook Medical Center | Atlantic Health System | Summit, NJ | PJM Interconnection, LLC (PJM) | 11.4 GWh | Dec 2011 | Dec 2025 | Natural Gas |
| Overman Solar | SunStrong Management | Goldsboro, NC | Duke Energy Progress East (CPLE) | 10.8 GWh | Nov 2021 | Dec 2025 | Solar |
| Owatonna | City of Owatonna - (MN) | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | Mar 1982 | Dec 2025 | Natural Gas |
| 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 |
| Owen Solar | Owen Solar LLC | Lincolnton, NC | Duke Energy Carolinas (DUK) | 6.9 GWh | Mar 2016 | Dec 2025 | Solar |
| Owens Corning | MN8 Energy LLC | Gloucester Township, NJ | PJM Interconnection, LLC (PJM) | 3.5 GWh | Nov 2016 | Dec 2025 | Solar |
| Owens Corning at Bethlehem | Luminace Solar Holding, LLC | Bethlehem, NY | New York Independent System Operator (NYIS) | 3.1 GWh | Sep 2013 | Dec 2025 | Solar |
| Owens Corning Headquarters | Luminace Solar Holding, LLC | Toledo, OH | PJM Interconnection, LLC (PJM) | 1.5 GWh | Aug 2015 | Dec 2025 | Solar |
| Owens Valley Solar Project 11 | Los Angeles Department of Water & Power | Olancha, CA | Los Angeles Department of Water and Power (LDWP) | 2.7 GWh | Nov 2016 | Dec 2025 | Solar |
| Owlville Creek Solar 2, LLC | Owlville Creek Solar 2, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 7.4 GWh | Nov 2020 | Dec 2025 | Solar |
| Owlville Creek Solar, LLC | Owlville Creek Solar, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 8.4 GWh | Nov 2020 | Dec 2025 | Solar |
| Owyhee Dam Power Project | Owyhee Irrigation District | Nyssa, OR | Idaho Power Company (IPCO) | 28.2 GWh | Jul 1985 | Oct 2025 | Water |
| Oxbow (CA) | Placer County Water Agency - (CA) | Foresthill, CA | California Independent System Operator (CISO) | 23.2 GWh | Sep 1966 | Dec 2025 | Water |
| Oxbow Creek | Oxbow Creek Energy LLC | Factoryville, PA | PJM Interconnection, LLC (PJM) | 40.6 GWh | Nov 2019 | Dec 2025 | Natural Gas |
| Oxbow (OR) | Idaho Power Co | Oxbow, OR | Idaho Power Company (IPCO) | 990.3 GWh | Jun 1961 | Dec 2025 | Water |
| Oxbow Solar 1 | Lightsource Renewable Energy Asset Management, LLC | New Roads, LA | Midcontinent Independent System Operator, Inc. (MISO) | 502.4 GWh | Jun 2024 | Aug 2026 | Solar |
| Oxford | CVI CleanCapital Solar 6 | Oxford, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2014 | Dec 2025 | Solar |
| Oxford Dam | Duke Energy Carolinas, LLC | Conover, NC | Duke Energy Carolinas (DUK) | 86.5 GWh | Mar 1928 | Dec 2025 | Water |
| Oxford (KS) | City of Oxford - (KS) | Oxford, KS | Southwest Power Pool (SWPP) | 4.0 MWh | Jun 1999 | Dec 2025 | Distillate Fuel Oil |
| Oxford (NE) | Village of Oxford - (NE) | Oxford, NE | Southwest Power Pool (SWPP) | 82.0 MWh | Jul 1953 | Dec 2025 | Natural Gas : 67.3% Distillate Fuel Oil : 32.7% |
| Oxford PV - BD Solar Oxford LLC | BD Solar Oxford LLC | Oxford, ME | ISO New England (ISNE) | 12.9 GWh | May 2021 | Dec 2025 | Solar |
| Oxford Solar | Citizens Enterprises Corporation | Oxford, MA | ISO New England (ISNE) | 4.8 GWh | Jan 2020 | Dec 2025 | Solar |
| Oxnard | Procter&Gamble Paper Products Co-Oxnard | Oxnard, CA | California Independent System Operator (CISO) | 426.4 GWh | Jun 1982 | Aug 2026 | Natural Gas |
| Oxnard Paper Mill | New-Indy, Oxnard LLC | Oxnard, CA | California Independent System Operator (CISO) | 188.6 GWh | Feb 1986 | Aug 2026 | Natural Gas |
| Oxnard Wastewater Treatment Plant | City of Oxnard - (CA) | Oxnard, CA | California Independent System Operator (CISO) | 2.4 GWh | Jul 1981 | Aug 2026 | Other Biomass Gas : 99.9% |
| Oxon Run CREF | Oxon Run Community Renewable Energy Facility | Washington, DC | PJM Interconnection, LLC (PJM) | 1.0 GWh | Nov 2021 | Dec 2025 | Solar |
| Oxy Renewable Energy - Goldsmith | Oxy Renewable Energy LLC | Goldsmith, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 38.8 GWh | Apr 2020 | Dec 2025 | Solar |
| OYA Church Road | OYA Church Road A LLC | Baldwinsville, NY | New York Independent System Operator (NYIS) | 8.6 GWh | Nov 2022 | Dec 2025 | Solar |
| OYA Main Street | OYA Main Street LLC | York, NY | New York Independent System Operator (NYIS) | 6.7 GWh | Nov 2022 | Dec 2025 | Solar |
| OYA Pulaski | SunStrong Management, LLC | Pulaski, NY | New York Independent System Operator (NYIS) | 6.9 GWh | Oct 2022 | Dec 2025 | Solar |
| OYA Robinson Road | SunStrong Management, LLC | Orleans, NY | New York Independent System Operator (NYIS) | 10.2 GWh | May 2022 | Dec 2025 | Solar |
| OYA State Route 122 | SunStrong Management, LLC | Constable, NY | New York Independent System Operator (NYIS) | 10.1 GWh | Nov 2021 | Dec 2025 | Solar |
| OYA Wayside Drive | SunStrong Management, LLC | Watertown, NY | New York Independent System Operator (NYIS) | 10.4 GWh | Sep 2022 | Dec 2025 | Solar |
| Oyster Creek Unit VIII | Dow Chemical Company-Oyster Creek VIII | Freeport, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.6 TWh | Sep 1994 | Aug 2026 | Natural Gas : 99.7% |
| Ozark | USCE-Little Rock District | Ozark, AR | Southwestern Power Administration (SPA) | 279.6 GWh | Oct 1972 | Dec 2025 | Water |
| Ozark Beach | Empire District Electric Co | Forsyth, MO | Southwest Power Pool (SWPP) | 40.3 GWh | May 1931 | Dec 2025 | Water |
| Ozark Solar Park | Today's Power, Inc. | Lincoln, AR | Southwest Power Pool (SWPP) | 4.1 GWh | Jun 2021 | Dec 2025 | Solar |
| Ozarks Natural Energy Community Solar | Ozarks Electric Coop Corp - (AR) | Springdale, AR | Southwest Power Pool (SWPP) | 2.1 GWh | Mar 2016 | Dec 2025 | Solar |
| P L Bartow | Duke Energy Florida, LLC | St. Petersburg, FL | Duke Energy Florida, Inc. (FPC) | 6.1 TWh | Apr 1972 | Aug 2026 | Natural Gas |
| P52ES 1755 Henryton Rd Phase 1 LLC CSG | Nautilus Solar Solutions | Marriottsville, MD | PJM Interconnection, LLC (PJM) | 3.4 GWh | May 2021 | Dec 2025 | Solar |
| P52ES 1755 Henryton Rd Phase 2 LLC | Nautilus Solar Solutions | Marriottsville, MD | PJM Interconnection, LLC (PJM) | 3.7 GWh | May 2021 | Dec 2025 | Solar |
| P66 Rodeo Solar | P66 Rodeo Solar | Rodeo, CA | California Independent System Operator (CISO) | 56.9 GWh | Mar 2023 | Aug 2026 | Solar |
| PA Solar Park | RWE Clean Energy | Nesquehoning, PA | PJM Interconnection, LLC (PJM) | 8.7 GWh | Sep 2012 | Aug 2026 | Solar |
| PA Solar Park II | RWE Clean Energy | Nesquehoning, PA | PJM Interconnection, LLC (PJM) | 14.4 GWh | Dec 2019 | Dec 2025 | Solar |
| PAC Aviation Solar | PAC Aviation | Van Nuys, CA | Los Angeles Department of Water and Power (LDWP) | 3.0 GWh | Nov 2024 | Dec 2025 | Solar |
| Pacific Aviation | Onyx Asset Services Group | Van Nuys, CA | Los Angeles Department of Water and Power (LDWP) | 2.9 GWh | Mar 2025 | Dec 2025 | Solar |
| Pacific Canyon Windfarm LLC | Echo 1 | Echo, OR | PacifiCorp West (PACW) | 16.8 GWh | May 2009 | Dec 2025 | Wind |
| Pacific Ethanol Madera Solar Array | Seaboard Energy California, LLC | Madera, CA | California Independent System Operator (CISO) | 4.0 GWh | Jul 2018 | Dec 2025 | Solar |
| Pacific-Ultrapower Chinese Station | IHI Power Services Corp | Jamestown, CA | California Independent System Operator (CISO) | 99.5 GWh | Sep 1986 | Aug 2026 | Wood/Wood Waste Solids : 98.4% Gaseous Propane : 1.6% |
| Pacific Wind LLC | EDF Renewable Asset Holdings, Inc. | Rosamond, CA | California Independent System Operator (CISO) | 294.7 GWh | Jul 2012 | Dec 2025 | Wind |
| Packaging Corp of America | Packaging Corp of America | Counce, TN | Tennessee Valley Authority (TVA) | 427.2 GWh | Jan 1985 | Aug 2026 | Black Liquor : 59.7% Wood/Wood Waste Solids : 21.6% Natural Gas : 18.7% |
| Packaging Corp. of America Jackson Mill | Boise White Paper LLC | Jackson, AL | Southern Company Services, Inc. - Trans (SOCO) | 228.3 GWh | May 1996 | Dec 2025 | Black Liquor : 45.8% Natural Gas : 35.2% Wood/Wood Waste Solids : 15.7% Other Fuel : 2.9% |
| Packaging of America Tomahawk Mill | PCA-Tomahawk Mill | Tomahawk, WI | Midcontinent Independent System Operator, Inc. (MISO) | 113.1 GWh | Dec 1919 | Dec 2025 | Wood/Wood Waste Solids : 35.4% Natural Gas : 35.0% Black Liquor : 18.0% Water : 11.0% Other Biomass Solids : 0.6% |
| Packwood | Energy Northwest - Packwood | Packwood, WA | Bonneville Power Administration (BPAT) | 73.8 GWh | Mar 1964 | 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 |