Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| OREG 4 Peetz | Ormat Nevada Inc | Peetz, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 3.2 GWh | Feb 2009 | May 2024 | Waste Heat |
| OE_AZ1 | Onward Energy | Salome, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 86.4 GWh | Nov 2019 | Aug 2024 | Solar |
| Oso Grande Wind Farm | Tucson Electric Power Co | Maljamar, NM | Tucson Electric Power (TEPC) | 540.3 GWh | Apr 2021 | Aug 2024 | Wind |
| Opryland USA | Gaylord Entertainment Co | Nashville, TN | Tennessee Valley Authority (TVA) | 26.7 GWh | Jun 1995 | Aug 2024 | Natural Gas |
| Old Hickory | USCE-Nashville District | Hendersonville, TN | Tennessee Valley Authority (TVA) | 368.7 GWh | Mar 1957 | Dec 2023 | Water |
| Ocoee 3 | Tennessee Valley Authority | Benton, TN | Tennessee Valley Authority (TVA) | 141.4 GWh | Mar 1943 | Dec 2023 | Water |
| Ocoee 2 | Tennessee Valley Authority | Benton, TN | Tennessee Valley Authority (TVA) | 80.7 GWh | Sep 1913 | Dec 2023 | Water |
| OETN1 | OE_TN1 | Obion, TN | Tennessee Valley Authority (TVA) | 194.4 GWh | Feb 2023 | Aug 2024 | Solar |
| OE_MS6 | OE_MS6 | St.Artesia, MS | Tennessee Valley Authority (TVA) | 114.9 GWh | - | Aug 2024 | Solar |
| Ocoee 1 | Tennessee Valley Authority | Benton, TN | Tennessee Valley Authority (TVA) | 69.8 GWh | Dec 1911 | Dec 2023 | Water |
| Osprey Energy Center Power Plant | Duke Energy Florida, LLC | Auburndale, FL | Tampa Electric Company (TEC) | 2.5 TWh | Apr 2004 | Aug 2024 | Natural Gas |
| Ozark | USCE-Little Rock District | Ozark, AR | Southwestern Power Administration (SPA) | 253.1 GWh | Oct 1972 | Dec 2023 | Water |
| Oxford (KS) | City of Oxford - (KS) | Oxford, KS | Southwest Power Pool (SWPP) | 6.0 MWh | Jun 1999 | Dec 2022 | Distillate Fuel Oil |
| Oxford (NE) | Village of Oxford - (NE) | Oxford, NE | Southwest Power Pool (SWPP) | 27.0 MWh | Jul 1953 | Dec 2023 | Natural Gas : 91.0% Distillate Fuel Oil : 9.0% |
| Oak Leaf - CSG Portfolio (OL 44) | Distributed Solar Development, LLC | Watkins, CO | Southwest Power Pool (SWPP) | 3.4 GWh | Nov 2020 | Dec 2023 | Solar |
| Oak Tree Energy | Consolidated Edison Development Inc. | Clark, SD | Southwest Power Pool (SWPP) | 66.7 GWh | Nov 2014 | Dec 2023 | Wind |
| OU Spirit Wind Farm | Oklahoma Gas & Electric Co | Woodward, OK | Southwest Power Pool (SWPP) | 141.4 GWh | Nov 2009 | Dec 2023 | Wind |
| Ozark Beach | Empire District Electric Co | Forsyth, MO | Southwest Power Pool (SWPP) | 55.7 GWh | May 1931 | Dec 2023 | Water |
| Ozarks Natural Energy Community Solar | Ozarks Electric Coop Corp - (AR) | Springdale, AR | Southwest Power Pool (SWPP) | 1.3 GWh | Mar 2016 | Dec 2023 | Solar |
| Oahe | USACE-Omaha | Pierre, SD | Southwest Power Pool (SWPP) | 2.1 TWh | Mar 1962 | Dec 2023 | Water |
| Oak Leaf Solar XVIII LLC | Greenbacker Renewable Energy Corporation | Denver, CO | Southwest Power Pool (SWPP) | 13.9 GWh | Nov 2021 | Dec 2023 | Solar |
| Oneta Energy Center | Oneta Power LLC | Broken Arrow, OK | Southwest Power Pool (SWPP) | 5.7 TWh | Jun 2002 | Aug 2024 | Natural Gas |
| Oak Leaf - CSG Portfolio (OL 39) | Distributed Solar Development, LLC | Watkins, CO | Southwest Power Pool (SWPP) | 3.5 GWh | May 2021 | Dec 2023 | Solar |
| Oak Leaf - CSG Portfolio (OL 38) | Distributed Solar Development, LLC | Watkins, CO | Southwest Power Pool (SWPP) | 3.4 GWh | May 2021 | Dec 2023 | Solar |
| Oak Leaf - CSG Portfolio (OL 37) | Distributed Solar Development, LLC | Watkins, CO | Southwest Power Pool (SWPP) | 3.3 GWh | Nov 2020 | Dec 2023 | Solar |
| Oak Leaf - CSG Portfolio (OL 36) | Distributed Solar Development, LLC | Watkins, CO | Southwest Power Pool (SWPP) | 2.6 GWh | May 2021 | Dec 2023 | Solar |
| Oak Grove Power Producers | Cube District Energy, LLC | Arcadia, KS | Southwest Power Pool (SWPP) | 20.2 GWh | Feb 2010 | Dec 2023 | Landfill Gas |
| Ottawa | City of Ottawa - (KS) | Ottawa, KS | Southwest Power Pool (SWPP) | 377.0 MWh | Nov 1958 | Dec 2023 | Natural Gas : 78.7% Distillate Fuel Oil : 21.3% |
| Osawatomie Power Plant North Sub | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 5.0 MWh | Apr 2018 | Dec 2023 | Distillate Fuel Oil |
| Oberlin (KS) | City of Oberlin - (KS) | Oberlin, KS | Southwest Power Pool (SWPP) | 3.9 MWh | Dec 1953 | Dec 2023 | Distillate Fuel Oil |
| Osawatomie Power Plant South Sub | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 6.0 MWh | Feb 2017 | Dec 2023 | Distillate Fuel Oil |
| Osawatomie City of | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 10.0 MWh | Sep 1950 | Dec 2023 | Distillate Fuel Oil |
| Osawatomie | Evergy Metro | Miami, KS | Southwest Power Pool (SWPP) | 44.0 GWh | May 2003 | Dec 2023 | Natural Gas |
| Origin Wind | Enel Green Power NA, Inc. | Hennepin, OK | Southwest Power Pool (SWPP) | 519.8 GWh | Oct 2014 | Dec 2023 | Wind |
| OREG 2 Inc | Ormat Nevada Inc | Culbertson, MT | Southwest Power Pool (SWPP) | 107.0 GWh | Nov 2008 | Aug 2024 | Waste Heat |
| OREG 1 Inc | Ormat Nevada Inc | Culbertson, MT | Southwest Power Pool (SWPP) | 148.4 GWh | Jun 2006 | Aug 2024 | Waste Heat |
| Ord | City of Ord - (NE) | Ord, NE | Southwest Power Pool (SWPP) | 59.0 MWh | Dec 1962 | Dec 2023 | Distillate Fuel Oil : 97.4% Natural Gas : 2.6% |
| Oklahoma Wind Energy Center | FPL Energy Oklahoma Wind LLC | Woodward, OK | Southwest Power Pool (SWPP) | 153.0 GWh | Sep 2003 | Dec 2023 | Wind |
| Osborn Wind Energy | Osborn Wind Energy LLC | Stewartsville, MO | Southwest Power Pool (SWPP) | 665.4 GWh | Nov 2016 | Aug 2024 | Wind |
| Osborne | City of Osborne - (KS) | Osborne, KS | Southwest Power Pool (SWPP) | 7.8 MWh | May 1957 | Dec 2023 | Distillate Fuel Oil : 60.7% Natural Gas : 39.3% |
| Osceola Windpower LLC | Osceola Windpower LLC | Harris, IA | Southwest Power Pool (SWPP) | 402.6 GWh | Jun 2008 | Aug 2024 | Wind |
| Oliver Dam | Georgia Power Co | Columbus, GA | Southern Company Services, Inc. - Trans (SOCO) | 134.4 GWh | Jun 1959 | Dec 2023 | Water |
| OE_GA3 | Onward Energy | Camilla, GA | Southern Company Services, Inc. - Trans (SOCO) | 116.0 GWh | Nov 2019 | Aug 2024 | Solar |
| OE_ALD | OE_ALD | Wing, AL | Southern Company Services, Inc. - Trans (SOCO) | 161.1 GWh | Mar 2023 | Aug 2024 | Solar |
| Old Midville Solar | Citizens Enterprises Corporation | Millen, GA | Southern Company Services, Inc. - Trans (SOCO) | 39.7 GWh | Oct 2016 | Dec 2023 | Solar |
| Oil Dri 2 Solar | Westbound Solar LLC | Ochlocknee, GA | Southern Company Services, Inc. - Trans (SOCO) | 2.9 GWh | Apr 2019 | Dec 2023 | Solar |
| Omtanke Solar | DG South Carolina Solar, LLC | Ridgeville, SC | South Carolina Public Service Authority (SC) | 10.4 GWh | Feb 2020 | Dec 2023 | Solar |
| OE_ESCL | OE_ESCL | Grants, NM | Public Service Company of New Mexico (PNM) | 131.6 GWh | - | Aug 2024 | Solar |
| Otero Solar | PNM Resources | La Luz, NM | Public Service Company of New Mexico (PNM) | 18.0 GWh | Nov 2013 | Dec 2023 | Solar |
| Oak Leaf Solar XXXI LLC (CSG) | Greenbacker Renewable Energy Corporation | Debeque, CO | Public Service Company of Colorado (PSCO) | 3.3 GWh | Nov 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXII LLC (CSG) | Greenbacker Renewable Energy Corporation | Denver, CO | Public Service Company of Colorado (PSCO) | 3.6 GWh | Dec 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXIII LLC (CSG) | Greenbacker Renewable Energy Corporation | Watkins, CO | Public Service Company of Colorado (PSCO) | 3.5 GWh | Dec 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXI (CSG) | Greenbacker Renewable Energy Corporation | Watkins, CO | Public Service Company of Colorado (PSCO) | 3.5 GWh | Nov 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXIV LLC (CSG) | Greenbacker Renewable Energy Corporation | Watkins, CO | Public Service Company of Colorado (PSCO) | 3.1 GWh | Dec 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXV LLC (CSG) | Greenbacker Renewable Energy Corporation | Watkins, CO | Public Service Company of Colorado (PSCO) | 3.0 GWh | Nov 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXX LLC (CSG) | Greenbacker Renewable Energy Corporation | Alamosa, CO | Public Service Company of Colorado (PSCO) | 4.0 GWh | Nov 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXVIII LLC (CSG) | Greenbacker Renewable Energy Corporation | Platteville, CO | Public Service Company of Colorado (PSCO) | 3.0 GWh | May 2019 | Dec 2023 | Solar |
| Oak Leaf Solar XXXII (CSG) | Greenbacker Renewable Energy Corporation | Rifle, CO | Public Service Company of Colorado (PSCO) | 3.1 GWh | Feb 2019 | Dec 2023 | Solar |
| Oak Leaf Solar XXXIII LLC (Lantz) | Greenbacker Renewable Energy Corporation | Salida, CO | Public Service Company of Colorado (PSCO) | 3.9 GWh | Dec 2019 | Dec 2023 | Solar |
| Oak Leaf Solar XXVI LLC | Greenbacker Renewable Energy Corporation | Denver, CO | Public Service Company of Colorado (PSCO) | 3.2 GWh | Dec 2018 | Dec 2023 | Solar |
| Oak Leaf Solar XXVII LLC | Greenbacker Renewable Energy Corporation | Greely, CO | Public Service Company of Colorado (PSCO) | 3.4 GWh | Oct 2018 | Dec 2023 | Solar |
| O'Neill Creek Solar | O'Neill Creek Solar LLC | Gaston, OR | Portland General Electric Company (PGE) | 3.9 GWh | Oct 2019 | Dec 2023 | Solar |
| Oak Grove | Portland General Electric Co | Estacada, OR | Portland General Electric Company (PGE) | 152.1 GWh | Jul 1924 | Dec 2023 | Water |
| Orange Street G1 | Town of Bedford - (VA) | Bedford, VA | PJM Interconnection, LLC (PJM) | 211.0 MWh | Jun 2005 | Dec 2023 | Distillate Fuel Oil |
| Owens Corning Headquarters | Luminace Solar Holding, LLC | Toledo, OH | PJM Interconnection, LLC (PJM) | 1.4 GWh | Aug 2015 | Dec 2023 | Solar |
| Oak Trail Solar, LLC | Leeward Asset Management, LLC | Moyock, NC | PJM Interconnection, LLC (PJM) | 242.4 GWh | Jun 2023 | Aug 2024 | Solar |
| Oxbow Creek | Oxbow Creek Energy LLC | Factoryville, PA | PJM Interconnection, LLC (PJM) | 62.4 GWh | Nov 2019 | Dec 2023 | Natural Gas |
| Orrville Peaking | American Mun Power-Ohio, Inc | Orrville, OH | PJM Interconnection, LLC (PJM) | 103.0 MWh | Jun 1999 | Dec 2023 | Distillate Fuel Oil |
| Oak Solar | Oak Solar LLC | Gaston, NC | PJM Interconnection, LLC (PJM) | 108.3 GWh | Nov 2023 | Aug 2024 | Solar |
| Oceana Solar | Virginia Electric & Power Co | Virginia Beach, VA | PJM Interconnection, LLC (PJM) | 29.0 GWh | Nov 2017 | Dec 2023 | Solar |
| Oberlin Spear Point Solar One | Oberlin College | Oberlin, OH | PJM Interconnection, LLC (PJM) | 2.1 GWh | Oct 2012 | Dec 2023 | Solar |
| Oberlin (OH) | City of Oberlin - (OH) | Oberlin, OH | PJM Interconnection, LLC (PJM) | 292.0 MWh | Dec 1947 | Dec 2023 | Natural Gas : 84.0% Distillate Fuel Oil : 16.0% |
| Oxon Run CREF | Oxon Run Community Renewable Energy Facility | Washington, DC | PJM Interconnection, LLC (PJM) | 3.2 GWh | Nov 2021 | Dec 2023 | Solar |
| Ocean County Landfill | EPP Renewable Energy | Manchester, NJ | PJM Interconnection, LLC (PJM) | 74.4 GWh | Jan 1997 | Aug 2024 | Landfill Gas |
| Otter Creek Solar | Dominion Energy Inc. | Chase City, VA | PJM Interconnection, LLC (PJM) | 33.1 GWh | Sep 2023 | Aug 2024 | Solar |
| Otter Creek Wind Farm LLC | Avangrid Renewables LLC | Ransom, IL | PJM Interconnection, LLC (PJM) | 468.9 GWh | Feb 2020 | Aug 2024 | Wind |
| Orrville | City of Orrville - (OH) | Orrville, OH | PJM Interconnection, LLC (PJM) | 20.8 GWh | Dec 1948 | Nov 2023 | Bituminous Coal : 66.6% Natural Gas : 33.4% |
| Overlook Medical Center | Overlook Medical Center | Summit, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | Dec 2011 | Dec 2022 | Natural Gas : 99.8% |
| Owens Corning | MN8 Energy LLC | Gloucester Township, NJ | PJM Interconnection, LLC (PJM) | 4.4 GWh | Nov 2016 | Dec 2023 | Solar |
| OER Monarch CSG | Standard Solar | Upper Marlboro, MD | PJM Interconnection, LLC (PJM) | 3.4 GWh | Nov 2021 | Dec 2023 | Solar |
| Onancock Diesel Generation Facility | Old Dominion Electric Coop | Onancock, VA | PJM Interconnection, LLC (PJM) | 122.0 MWh | Oct 2002 | Dec 2023 | Distillate Fuel Oil |
| Olmstead II CSG | Olmstead Solar II, LLC | Lena, IL | PJM Interconnection, LLC (PJM) | 2.0 GWh | Aug 2021 | Dec 2023 | Solar |
| OlivePV | Indiana Michigan Power Co | New Carlisle, IN | PJM Interconnection, LLC (PJM) | 8.4 GWh | Jul 2016 | Aug 2024 | Solar |
| Ontelaunee Energy Center | Ontelaunee Energy Center | Reading, PA | PJM Interconnection, LLC (PJM) | 3.8 TWh | Apr 2002 | Aug 2024 | Natural Gas |
| Onyx - Allen Harim | Onyx Asset Services Group | Harbeson, DE | PJM Interconnection, LLC (PJM) | 1.8 GWh | Mar 2017 | Dec 2023 | Solar |
| Old Trail Wind Farm | Old Trail Wind Farm LLC | Ellsworth, IL | PJM Interconnection, LLC (PJM) | 541.1 GWh | Nov 2007 | Aug 2024 | Wind |
| O H Hutchings | Kimura Power LLC | Miamisburg, OH | PJM Interconnection, LLC (PJM) | 208.0 MWh | Jun 1948 | Dec 2023 | Natural Gas |
| Old Court Rd Solar | Old Court Rd Solar, LLC | Woodstock, MD | PJM Interconnection, LLC (PJM) | 3.4 GWh | Sep 2019 | Dec 2023 | Solar |
| Old Bridge Solar Farm | NJR Clean Energy Ventures Corporation | Old Bridge, NJ | PJM Interconnection, LLC (PJM) | 13.6 GWh | Jul 2018 | Dec 2023 | Solar |
| Old Bridge Global Landfill CSG | NJR Clean Energy Ventures Corporation | Old Bridge, NJ | PJM Interconnection, LLC (PJM) | 353.0 MWh | Sep 2023 | Dec 2023 | Solar |
| Orchard Park | Borough of Chambersburg | Chambersburg, PA | PJM Interconnection, LLC (PJM) | 24.9 GWh | Nov 2003 | Aug 2024 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
| Ohio Northern University Solar Site | AEP Onsite Partners, LLC | Ada, OH | PJM Interconnection, LLC (PJM) | 4.0 GWh | Nov 2016 | Aug 2024 | Solar |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 6.6 TWh | Jun 2017 | Aug 2024 | Natural Gas |
| OER Patuxent CSG | Standard Solar | Lothian, MD | PJM Interconnection, LLC (PJM) | 4.2 GWh | Oct 2022 | Dec 2023 | Solar |
| OER Checkerspot | Standard Solar | Tracy's Landing, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Nov 2021 | Dec 2023 | Solar |
| Oregon University System Rabbit Field | Tesla Inc. | Corvallis, OR | PacifiCorp West (PACW) | 1.2 GWh | Feb 2014 | Dec 2023 | Solar |
| OR Solar 2, LLC | OR Solar 2, LLC | Eagle Point, OR | PacifiCorp West (PACW) | 21.3 GWh | Sep 2020 | Dec 2023 | Solar |
| OR Solar 8, LLC | Heelstone Energy Holdings, LLC | Dairy, OR | PacifiCorp West (PACW) | 23.7 GWh | Feb 2018 | Dec 2023 | Solar |
| OR Solar 6, LLC | Heelstone Energy Holdings, LLC | Lakeview, OR | PacifiCorp West (PACW) | 23.3 GWh | Nov 2017 | Dec 2023 | Solar |
| Opal Springs Hydro | Deschutes Valley Water District | Culver, OR | PacifiCorp West (PACW) | 24.2 GWh | Dec 1984 | Dec 2023 | Water |
Summary of Power Plants By State
Figures are based on August 2024 generation numbers.| State | Rank | Active Plants | Aug 2024 Generation |
|---|---|---|---|
| Alabama | # 7 | 78 | 14,073.11 GWh |
| Alaska | # 48 | 147 | 631.71 GWh |
| Arizona | # 10 | 161 | 12,447.73 GWh |
| Arkansas | # 23 | 77 | 6,473.81 GWh |
| California | # 4 | 1,666 | 22,299.47 GWh |
| Colorado | # 28 | 277 | 5,476.67 GWh |
| Connecticut | # 33 | 159 | 4,351.57 GWh |
| Delaware | # 49 | 31 | 481.79 GWh |
| District of Columbia | # 51 | 12 | 19.18 GWh |
| Florida | # 2 | 286 | 27,339.08 GWh |
| Georgia | # 6 | 251 | 14,863.07 GWh |
| Hawaii | # 47 | 69 | 841.39 GWh |
| Idaho | # 43 | 142 | 1,655.52 GWh |
| Illinois | # 5 | 335 | 17,196.16 GWh |
| Indiana | # 18 | 202 | 9,001.13 GWh |
| Iowa | # 26 | 283 | 5,529.62 GWh |
| Kansas | # 31 | 165 | 5,363.63 GWh |
| Kentucky | # 21 | 55 | 6,964.00 GWh |
| Louisiana | # 14 | 82 | 10,133.66 GWh |
| Maine | # 45 | 162 | 1,185.43 GWh |
| Maryland | # 38 | 185 | 3,346.65 GWh |
| Massachusetts | # 41 | 614 | 1,896.47 GWh |
| Michigan | # 12 | 274 | 12,135.86 GWh |
| Minnesota | # 27 | 748 | 5,511.98 GWh |
| Mississippi | # 19 | 55 | 7,436.42 GWh |
| Missouri | # 20 | 126 | 7,051.26 GWh |
| State | Rank | Active Plants | Aug 2024 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 2,306.38 GWh |
| Nebraska | # 36 | 125 | 3,559.93 GWh |
| Nevada | # 32 | 110 | 4,699.98 GWh |
| New Hampshire | # 42 | 60 | 1,808.14 GWh |
| New Jersey | # 25 | 387 | 5,633.45 GWh |
| New Mexico | # 39 | 139 | 3,198.26 GWh |
| New York | # 11 | 848 | 12,289.60 GWh |
| North Carolina | # 9 | 893 | 13,559.75 GWh |
| North Dakota | # 35 | 59 | 3,641.88 GWh |
| Ohio | # 8 | 190 | 13,652.00 GWh |
| Oklahoma | # 15 | 130 | 10,062.87 GWh |
| Oregon | # 29 | 262 | 5,448.37 GWh |
| Pennsylvania | # 3 | 246 | 23,205.63 GWh |
| Rhode Island | # 46 | 97 | 1,061.17 GWh |
| South Carolina | # 16 | 203 | 9,629.88 GWh |
| South Dakota | # 44 | 53 | 1,603.17 GWh |
| Tennessee | # 22 | 87 | 6,912.16 GWh |
| Texas | # 1 | 797 | 58,529.53 GWh |
| Utah | # 37 | 122 | 3,440.26 GWh |
| Vermont | # 50 | 114 | 207.44 GWh |
| Virginia | # 13 | 213 | 10,408.51 GWh |
| Washington | # 17 | 138 | 9,091.93 GWh |
| West Virginia | # 30 | 36 | 5,412.86 GWh |
| Wisconsin | # 24 | 230 | 6,416.93 GWh |
| Wyoming | # 34 | 70 | 3,868.32 GWh |