Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Orchard Windfarm 4, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 25.6 GWh | Nov 2020 | Dec 2023 | Wind |
| 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% |
| OREG 1 Inc | Ormat Nevada Inc | Culbertson, MT | Southwest Power Pool (SWPP) | 148.4 GWh | Jun 2006 | Aug 2024 | Waste Heat |
| OREG 2 Inc | Ormat Nevada Inc | Culbertson, MT | Southwest Power Pool (SWPP) | 107.0 GWh | Nov 2008 | Aug 2024 | Waste Heat |
| OREG 3 Inc | Ormat Nevada Inc | Trimont, MN | Midcontinent Independent System Operator, Inc. (MISO) | 35.8 GWh | Jul 2010 | Aug 2024 | Waste Heat |
| 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 |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 6.6 TWh | Jun 2017 | Aug 2024 | Natural Gas |
| Oregon Convention Center | Tesla Inc. | Portland, OR | PacifiCorp West (PACW) | 1.7 GWh | Jun 2016 | Dec 2023 | Solar |
| Oregon State University Energy Center | Oregon State University | Corvallis, OR | Bonneville Power Administration (BPAT) | 36.0 GWh | May 2010 | Aug 2024 | Natural Gas |
| Oregon Trail Wind Park | Idaho Wind Partners 1 LLC | Hagerman, ID | Idaho Power Company (IPCO) | 34.6 GWh | Dec 2010 | Dec 2023 | Wind |
| Oregon Trail Windfarm LLC | Echo 1 | Echo, OR | PacifiCorp West (PACW) | 21.2 GWh | May 2009 | Dec 2023 | Wind |
| Oregon University System OIT Klamath Falls | Tesla Inc. | Klamath Falls, OR | PacifiCorp West (PACW) | 2.4 GWh | Dec 2013 | Dec 2023 | Solar |
| Oregon University System Rabbit Field | Tesla Inc. | Corvallis, OR | PacifiCorp West (PACW) | 1.2 GWh | Feb 2014 | Dec 2023 | Solar |
| Organ Church Solar | MN8 Energy LLC | Rockwell, NC | Duke Energy Carolinas (DUK) | 10.3 GWh | Jan 2019 | Dec 2023 | Solar |
| Orient Wind Farm | MidAmerican Energy Co | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 TWh | Nov 2018 | Aug 2024 | Wind |
| Origin Wind | Enel Green Power NA, Inc. | Hennepin, OK | Southwest Power Pool (SWPP) | 519.8 GWh | Oct 2014 | Dec 2023 | Wind |
| Orioles Community Solar | Azimuth 180 Solar Electric, LLC | Hannacroix, NY | New York Independent System Operator (NYIS) | 7.5 GWh | Sep 2022 | Dec 2023 | Solar |
| Orion Community Solar | Orion Community Solar | St. Joseph, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.6 GWh | Dec 2016 | Dec 2023 | Solar |
| Orion I Solar Project | Ben Milam Solar 1 LLC | Burlington, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 54.6 GWh | - | Aug 2024 | Solar |
| Orion III Solar Project | Ben Milam Solar 3 LLC | Buckholts, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 65.9 GWh | - | Aug 2024 | Solar |
| Orion Solar I | Orion Solar I LLC | Arvin, CA | California Independent System Operator (CISO) | 28.9 GWh | Mar 2014 | Dec 2023 | Solar |
| Orion Solar II | Orion Solar II, LLC | Arvin, CA | California Independent System Operator (CISO) | 18.3 GWh | May 2014 | Dec 2023 | Solar |
| Orlando Cogen LP | Orlando CoGen Ltd LP | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 1.0 TWh | Aug 1993 | Dec 2023 | Natural Gas |
| Ormesa I | Ormat Nevada Inc | Holtville, CA | Imperial Irrigation District (IID) | 101.7 GWh | Nov 1986 | Dec 2023 | Geothermal |
| Ormesa II | Ormat Nevada Inc | Holtville, CA | Imperial Irrigation District (IID) | 95.0 GWh | Apr 1989 | Dec 2023 | Geothermal |
| Ormesa III | Ormat Nevada Inc | Holtville, CA | Imperial Irrigation District (IID) | 68.5 GWh | Apr 1989 | Dec 2023 | Geothermal |
| Ormond Beach | Ormond Beach Power, LLC | Oxnard, CA | California Independent System Operator (CISO) | 44.9 GWh | Jul 1971 | Aug 2024 | Natural Gas |
| Oro Loma | Consolidated Edison Development Inc. | Oro Loma, CA | California Independent System Operator (CISO) | 25.3 GWh | Dec 2016 | Dec 2023 | Solar |
| Orono B | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 25.5 GWh | Oct 2013 | Dec 2023 | Water |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 11.6 GWh | Dec 2008 | Dec 2023 | Water |
| Oroville Cogeneration LP | Oroville Cogeneration LP | Oroville, CA | California Independent System Operator (CISO) | 235.0 MWh | Dec 1989 | Dec 2023 | Natural Gas |
| 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% |
| Orrville Peaking | American Mun Power-Ohio, Inc | Orrville, OH | PJM Interconnection, LLC (PJM) | 103.0 MWh | Jun 1999 | Dec 2023 | Distillate Fuel Oil |
| Osage Dam | Union Electric Co - (MO) | Eldon, MO | Midcontinent Independent System Operator, Inc. (MISO) | 176.1 GWh | Sep 1931 | Dec 2023 | Water |
| Osage (IA) | City of Osage - (IA) | Osage, IA | Midcontinent Independent System Operator, Inc. (MISO) | 3.8 GWh | Aug 1963 | Dec 2023 | Wind : 73.8% Solar : 26.2% |
| Osage Wind, LLC | Enel Green Power NA, Inc. | Burbank, OK | Associated Electric Cooperative, Inc. (AECI) | 511.9 GWh | May 2015 | Dec 2023 | Wind |
| Osawatomie | Evergy Metro | Miami, KS | Southwest Power Pool (SWPP) | 44.0 GWh | May 2003 | Dec 2023 | Natural Gas |
| Osawatomie City of | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 10.0 MWh | Sep 1950 | Dec 2023 | Distillate Fuel Oil |
| 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 |
| 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 |
| 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 Generating Station (FL) | Orlando Utilities Comm | St. Cloud, FL | Duke Energy Florida, Inc. (FPC) | 676.0 MWh | Nov 2001 | Dec 2023 | Natural Gas : 90.0% Distillate Fuel Oil : 10.0% |
| Osceola Solar Facility | Duke Energy Florida, LLC | Kenansville, FL | Duke Energy Florida, Inc. (FPC) | 4.0 GWh | Feb 2016 | Dec 2023 | Solar |
| Osceola Windpower II | Osceola Windpower II | Harris, IA | Midcontinent Independent System Operator, Inc. (MISO) | 198.9 GWh | Aug 2008 | Aug 2024 | Wind |
| Osceola Windpower LLC | Osceola Windpower LLC | Harris, IA | Southwest Power Pool (SWPP) | 402.6 GWh | Jun 2008 | Aug 2024 | Wind |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2012 | Dec 2023 | Solar |
| OSLH, LLC | OSLH, LLC | Bend, OR | PacifiCorp West (PACW) | 22.4 GWh | Nov 2016 | Dec 2023 | Solar |
| Oso Grande Wind Farm | Tucson Electric Power Co | Maljamar, NM | Tucson Electric Power (TEPC) | 540.3 GWh | Apr 2021 | Aug 2024 | Wind |
| Osprey Energy Center Power Plant | Duke Energy Florida, LLC | Auburndale, FL | Tampa Electric Company (TEC) | 2.5 TWh | Apr 2004 | Aug 2024 | Natural Gas |
| Oswegatchie | Erie Boulevard Hydropower LP | Edwards, NY | New York Independent System Operator (NYIS) | 8.8 GWh | Jul 2002 | Dec 2023 | Water |
| Oswego | NY USLE Oswego SR104 LLC | Oswego, NY | New York Independent System Operator (NYIS) | 457.0 MWh | Aug 2023 | Dec 2023 | Solar |
| Oswego County Energy Recovery | Oswego County | Fulton, NY | New York Independent System Operator (NYIS) | 7.3 GWh | Jan 1986 | Dec 2023 | 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) | 2.1 GWh | May 2018 | Dec 2023 | Solar |
| Oswego Falls East | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 24.2 GWh | Dec 1913 | Dec 2023 | Water |
| Oswego Falls West | Erie Boulevard Hydropower LP | Fulton, NY | New York Independent System Operator (NYIS) | 8.4 GWh | Dec 1913 | Dec 2023 | Water |
| Oswego Harbor Power | Oswego Harbor Power | Oswego, NY | New York Independent System Operator (NYIS) | 42.5 GWh | May 1975 | Jul 2024 | Residual Fuel Oil |
| Otarre Solar Park | TIG Sun Energy IV, LLC | Cayce, SC | Dominion Energy South Carolina, Inc. (SCEG) | 2.8 GWh | Nov 2017 | Dec 2023 | Solar |
| Otay Mesa Generating Project | Otay Mesa Energy Center LLC | San Diego, CA | California Independent System Operator (CISO) | 2.4 TWh | Sep 2009 | Aug 2024 | Natural Gas |
| Otero Solar | PNM Resources | La Luz, NM | Public Service Company of New Mexico (PNM) | 18.0 GWh | Nov 2013 | Dec 2023 | Solar |
| OTHERBenEKDallas | Generate ER-NG, LLC | Dallas, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 107.0 MWh | Apr 2023 | Dec 2023 | Natural Gas |
| OTHERCitizensHospital | Texas Microgrid, LLC | Victoria, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 823.0 MWh | Mar 2020 | Dec 2023 | Natural Gas |
| OTHERNFBWA | Texas Microgrid, LLC | Houston, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 178.0 MWh | Jan 2021 | Dec 2023 | Natural Gas |
| OTHERTexasA&M | Texas Microgrid, LLC | Bryan, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.1 GWh | Apr 2018 | Dec 2023 | Natural Gas |
| OTHERTraditionClearfork | Texas Microgrid, LLC | Fort Worth, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 42.0 MWh | Mar 2023 | Dec 2023 | Natural Gas |
| Otis Elevator Company Solar | Otis Elevator Company | Florence, SC | Duke Energy Carolinas (DUK) | 1.6 GWh | Apr 2018 | Dec 2023 | Solar |
| Otis Hydro | Eagle Creek Renewable Energy, LLC | Livermore Falls, ME | ISO New England (ISNE) | 31.2 GWh | Dec 1984 | Aug 2024 | Water |
| Otoe Solar Power Generation Station 1 LLC | AES Distributed Energy | Apple Valley, CA | California Independent System Operator (CISO) | 3.5 GWh | Nov 2013 | Dec 2023 | Solar |
| Otsego Mill Power Plant | Otsego Paper Inc | Otsego, MI | Midcontinent Independent System Operator, Inc. (MISO) | 161.2 GWh | Oct 1995 | Dec 2023 | Natural Gas |
| Ottauquechee Hydro | Green Mountain Power Corp | N. Hartland, VT | ISO New England (ISNE) | 3.5 GWh | Mar 1983 | Dec 2023 | Water |
| 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% |
| Otter Creek Ethanol Poet - Ashton | Otter Creek Ethanol LLC - Poet Ashton | Ashton, IA | Midcontinent Independent System Operator, Inc. (MISO) | 44.8 GWh | Feb 2004 | Aug 2024 | Natural 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 |
| Ottumwa | Interstate Power and Light Co | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 TWh | Apr 1981 | Aug 2024 | Subbituminous Coal : 99.3% |
| Ottumwa City of | Ottumwa City of | Ottumwa, IA | Midcontinent Independent System Operator, Inc. (MISO) | 5.3 GWh | Jul 1931 | Dec 2023 | Water |
| OU Spirit Wind Farm | Oklahoma Gas & Electric Co | Woodward, OK | Southwest Power Pool (SWPP) | 141.4 GWh | Nov 2009 | Dec 2023 | Wind |
| Ouachita | Entergy Louisiana LLC | Sterlington, LA | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 TWh | Jul 2002 | Aug 2024 | Natural Gas |
| Ouchchy PV1 | Ecoplexus, Inc | Mebane, NC | Duke Energy Carolinas (DUK) | 5.0 GWh | Nov 2015 | Dec 2023 | Solar |
| Outback Solar At Christmas Valley | Outback Solar, LLC | Christmas Valley, OR | Bonneville Power Administration (BPAT) | 7.1 GWh | Sep 2012 | Dec 2023 | Solar |
| Overall Road Station | City of Farmington - (MO) | Farmington, MO | Midcontinent Independent System Operator, Inc. (MISO) | 32.0 MWh | Feb 2003 | Dec 2023 | Distillate Fuel Oil |
| Overhill Solar | Strata Manager, LLC | Clinton, NC | Duke Energy Carolinas (DUK) | 10.8 GWh | Feb 2022 | Dec 2023 | Solar |
| Overlook Medical Center | Overlook Medical Center | Summit, NJ | PJM Interconnection, LLC (PJM) | 3.6 GWh | Dec 2011 | Dec 2022 | Natural Gas : 99.8% |
| Overman Solar | Overman Solar, LLC | Goldsboro, NC | Duke Energy Progress East (CPLE) | 10.9 GWh | Nov 2021 | Dec 2023 | Solar |
| Owatonna | City of Owatonna - (MN) | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.4 GWh | Mar 1982 | Dec 2023 | Natural Gas |
| Owatonna Energy Station | Southern Minnesota Mun P Agny | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 53.5 GWh | Feb 2018 | Dec 2023 | Natural Gas |
| Owen Solar | Owen Solar LLC | Lincolnton, NC | Duke Energy Carolinas (DUK) | 9.1 GWh | Mar 2016 | Dec 2023 | Solar |
| Owens Corning | MN8 Energy LLC | Gloucester Township, NJ | PJM Interconnection, LLC (PJM) | 4.4 GWh | Nov 2016 | Dec 2023 | Solar |
| Owens Corning at Bethlehem | Luminace Solar Holding, LLC | Bethlehem, NY | New York Independent System Operator (NYIS) | 3.4 GWh | Sep 2013 | Dec 2023 | Solar |
| Owens Corning Headquarters | Luminace Solar Holding, LLC | Toledo, OH | PJM Interconnection, LLC (PJM) | 1.4 GWh | Aug 2015 | Dec 2023 | Solar |
| Owens Valley Solar Project 11 | Los Angeles Department of Water & Power | Olancha, CA | Los Angeles Department of Water and Power (LDWP) | 2.3 GWh | Nov 2016 | Dec 2023 | Solar |
| Owlville Creek Solar 2, LLC | Owlville Creek Solar 2, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 7.2 GWh | Nov 2020 | Dec 2023 | Solar |
| Owlville Creek Solar, LLC | Owlville Creek Solar, LLC | Canastota, NY | New York Independent System Operator (NYIS) | 8.3 GWh | Nov 2020 | Dec 2023 | Solar |
| Owyhee Dam Power Project | Owyhee Irrigation District | Nyssa, OR | Idaho Power Company (IPCO) | 15.2 GWh | Jul 1985 | Oct 2023 | Water |
| Oxbow (CA) | Placer County Water Agency | Foresthill, CA | California Independent System Operator (CISO) | 13.8 GWh | Sep 1966 | Dec 2023 | Water |
| Oxbow Creek | Oxbow Creek Energy LLC | Factoryville, PA | PJM Interconnection, LLC (PJM) | 62.4 GWh | Nov 2019 | Dec 2023 | Natural Gas |
| Oxbow (OR) | Idaho Power Co | Oxbow, OR | Idaho Power Company (IPCO) | 900.1 GWh | Jun 1961 | Dec 2023 | Water |
| Oxbow Solar 1 | Lightsource Renewable Energy Asset Management, LLC | New Roads, LA | Midcontinent Independent System Operator, Inc. (MISO) | 122.7 GWh | - | Aug 2024 | Solar |
| Oxford | CVI CleanCapital Solar 6 | Oxford, MA | ISO New England (ISNE) | 3.9 GWh | Jun 2014 | Dec 2023 | Solar |
| Oxford Dam | Duke Energy Carolinas, LLC | Conover, NC | Duke Energy Carolinas (DUK) | 87.3 GWh | Mar 1928 | 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 |