Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Orefield | Madison Energy Investments LLC | Orefield, PA | PJM Interconnection, LLC (PJM) | 2.4 GWh | Nov 2024 | Dec 2025 | Solar |
| SulusSolar17 | Adapture Renewables, Inc. | Oregon City, OR | Portland General Electric Company (PGE) | 6.5 GWh | May 2020 | Dec 2025 | Solar |
| USS Ducks Solar CSG | USS Ducks Solar LLC | Oregon, IL | Midcontinent Independent System Operator, Inc. (MISO) | 9.0 MWh | Oct 2025 | Dec 2025 | Solar |
| OE IL Solar 3 | OE IL Solar 3, LLC | Oregon, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.4 GWh | Feb 2022 | Dec 2025 | Solar |
| FirstEnergy Bay Shore | Walleye Power, LLC | Oregon, OH | PJM Interconnection, LLC (PJM) | 994.9 GWh | Jul 1955 | Dec 2025 | Petroleum Coke : 99.9% |
| Toledo Ref Power Recovery Train | Toledo Refining Company | Oregon, OH | PJM Interconnection, LLC (PJM) | 89.2 MWh | May 1986 | Jun 2026 | Petroleum Coke |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 5.7 TWh | Jun 2017 | Aug 2026 | Natural Gas |
| OR - Green Key - Buckner CSG | Buckner Creek Solar, LLC | Oregon, OR | Portland General Electric Company (PGE) | 847.0 MWh | Apr 2025 | Dec 2025 | Solar |
| Cumberland Rose | Cumberland Rose Wind Energy, LLC | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | Jul 2012 | Dec 2025 | Wind |
| Orient Wind Farm | MidAmerican Energy Co | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 TWh | Nov 2018 | Aug 2026 | Wind |
| Bulldog | Bulldog Wind Energy, LLC | Orient, IA | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Sep 2010 | Dec 2025 | Wind |
| Bear Creek Solar (Orinda) | Solar Star Bear Creek, LLC | Orinda, CA | California Independent System Operator (CISO) | 7.4 GWh | Mar 2025 | Dec 2025 | Solar |
| Eagle Valley (MI) | WM Renewable Energy LLC | Orion, MI | Midcontinent Independent System Operator, Inc. (MISO) | 23.0 GWh | Jun 2011 | Dec 2025 | Landfill Gas |
| Judd Road Solar | Novis Renewables, LLC | Oriskany, NY | New York Independent System Operator (NYIS) | 7.7 GWh | Feb 2022 | Dec 2025 | Solar |
| Oneida County- DPW | Tesla Inc. | Oriskany, NY | ISO New England (ISNE) | 1.4 GWh | Sep 2017 | Dec 2025 | Solar |
| Hayhurst Texas Solar | Hayhurst Texas Solar | Orla, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 70.1 GWh | Mar 2024 | Dec 2025 | Solar |
| Black Butte | City of Santa Clara - (CA) | Orland, CA | California Independent System Operator (CISO) | 9.0 GWh | Aug 1988 | Dec 2025 | Water |
| Adapture CA2, LLC | Adapture Renewables, Inc. | Orland, CA | PacifiCorp West (PACW) | 3.2 GWh | Feb 2016 | Dec 2025 | Solar |
| Walt Disney World Solar Facility | Duke Energy Florida Solar Solutions | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 7.5 GWh | Feb 2016 | Dec 2025 | Solar |
| ACE-Stanton PV | ACE-Stanton, LLC | Orlando, FL | Florida Municipal Power Pool (FMPP) | 8.7 GWh | Aug 2017 | Dec 2025 | Solar |
| Lockheed Martin Solar | Lockheed Martin RMS | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 2.1 GWh | Sep 1998 | Dec 2025 | Solar : 97.8% Distillate Fuel Oil : 2.2% |
| ACE-Stanton A PV | ACE-Stanton A, LLC | Orlando, FL | Florida Municipal Power Pool (FMPP) | 8.0 GWh | Aug 2017 | Dec 2025 | Solar |
| Taylor Creek Solar | Taylor Creek Solar LLC | Orlando, FL | Florida Municipal Power Pool (FMPP) | 178.6 GWh | May 2020 | Aug 2026 | Solar |
| Orlando Cogen LP | Florida Municipal Power Agency (FL) | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 348.0 GWh | Aug 1993 | Dec 2025 | Natural Gas |
| RP-Orlando, LLC | Deriva Energy | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 8.2 GWh | Nov 2011 | Dec 2025 | Solar |
| Stanton Energy Center | Orlando Utilities Comm | Orlando, FL | Florida Municipal Power Pool (FMPP) | 5.7 TWh | Jun 1987 | Aug 2026 | Bituminous Coal : 60.6% Natural Gas : 38.9% Landfill Gas : 0.5% |
| Curtis H Stanton Energy Center | Stanton Clean Energy LLC | Orlando, FL | Duke Energy Florida, Inc. (FPC) | 3.4 TWh | Sep 2003 | Aug 2026 | Natural Gas |
| Wagon Wheel Wind | Southwestern Electric Power Co | Orlando, OK | Southwest Power Pool (SWPP) | 1.6 TWh | Nov 2025 | Jul 2026 | Wind |
| OYA Robinson Road | SunStrong Management, LLC | Orleans, NY | New York Independent System Operator (NYIS) | 10.2 GWh | May 2022 | Dec 2025 | Solar |
| Alamo Solar | Onward Energy | Oro Grande, CA | California Independent System Operator (CISO) | 49.3 GWh | Apr 2015 | Dec 2025 | Solar |
| Oro Loma | RWE Clean Energy | Oro Loma, CA | California Independent System Operator (CISO) | 49.2 GWh | Dec 2016 | Dec 2025 | Solar |
| Canyon Del Oro High School Solar | Luminace Solar Arizona 2, LLC | Oro Valley, AZ | Tucson Electric Power (TEPC) | 2.2 GWh | Oct 2016 | Dec 2025 | Solar |
| Orono B | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 17.2 GWh | Oct 2013 | Dec 2025 | Water |
| Orono Hydro Station | Brookfield Black Bear Hydro, LLC | Orono, ME | ISO New England (ISNE) | 6.2 GWh | Dec 2008 | Dec 2025 | Water |
| Thermalito Diverson Dam | California Dept. of Water Resources | Oroville, CA | California Independent System Operator (CISO) | 10.3 GWh | Jun 1987 | Dec 2025 | Water |
| Oroville Cogeneration, LLC | Apex Power Generation Corp. | Oroville, CA | California Independent System Operator (CISO) | 115.6 MWh | Dec 1989 | Dec 2025 | Natural Gas |
| Thermalito | California Dept. of Water Resources | Oroville, CA | California Independent System Operator (CISO) | 318.3 GWh | Jan 1968 | Aug 2026 | Water |
| Edward C Hyatt | California Dept. of Water Resources | Oroville, CA | California Independent System Operator (CISO) | 2.2 TWh | Feb 1968 | Aug 2026 | Water |
| Kelly Ridge | South Feather Water and Power Agency | Oroville, CA | California Independent System Operator (CISO) | 69.1 GWh | Aug 1963 | Dec 2025 | Water |
| Butte College Main Campus Solar | Butte-Glenn Community College District | Oroville, CA | California Independent System Operator (CISO) | 6.6 GWh | Jun 2011 | Dec 2025 | Solar |
| Orrtanna | Orrtanna Power, LLC | Orrtanna, PA | PJM Interconnection, LLC (PJM) | 417.0 MWh | Apr 1971 | Dec 2025 | Distillate Fuel Oil |
| Walters Solar (FLS 260) | Cypress Creek Renewables | Orrum, NC | Duke Energy Progress East (CPLE) | 7.0 GWh | Jul 2015 | Dec 2025 | Solar |
| DG AMP Solar Orrville 3 | DG AMP Solar, LLC | Orrville, OH | PJM Interconnection, LLC (PJM) | 3.2 GWh | Jan 2018 | Dec 2025 | Solar |
| Orrville | City of Orrville - (OH) | Orrville, OH | PJM Interconnection, LLC (PJM) | 29.3 GWh | Dec 1948 | Dec 2025 | Bituminous Coal : 54.3% Natural Gas : 45.7% |
| Orrville Peaking | American Mun Power-Ohio, Inc | Orrville, OH | PJM Interconnection, LLC (PJM) | 271.0 MWh | Jun 1999 | Dec 2025 | Distillate Fuel Oil |
| Osage City Solar | Evergy Kansas Central, Inc | Osage City, KS | Southwest Power Pool (SWPP) | 3.1 GWh | Nov 2024 | Dec 2025 | Solar |
| Maple City | Altus Power America Management, LLC | Osage Township, IA | Associated Electric Cooperative, Inc. (AECI) | 3.0 GWh | Nov 2022 | Dec 2025 | Solar |
| Osage (IA) | City of Osage - (IA) | Osage, IA | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | Aug 1963 | Dec 2025 | Wind : 81.8% Solar : 18.2% |
| Novel OYA of Osakis CSG | NRG MN Community LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 9.0 GWh | Jun 2018 | Dec 2025 | Solar |
| Douglas Todd Community Solar One LLC CSG | Madison Energy Holdings LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Nov 2019 | Dec 2025 | Solar |
| FastSun 13 CSG | Altus Power America Management, LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Nov 2019 | Dec 2025 | Solar |
| Novel Herickhoff Solar CSG | REA Investments, LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Mar 2020 | Dec 2025 | Solar |
| Osawatomie Power Plant North Sub | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 3.0 MWh | Apr 2018 | Dec 2025 | Distillate Fuel Oil |
| Osawatomie Power Plant South Sub | City of Osawatomie - (KS) | Osawatomie, KS | Southwest Power Pool (SWPP) | 3.0 MWh | Feb 2017 | Dec 2025 | Distillate Fuel Oil |
| Osawatomie Solar | Evergy Kansas Central, Inc | Osawatomie, KS | Southwest Power Pool (SWPP) | 10.8 GWh | Nov 2024 | Dec 2025 | Solar |
| Osborne | City of Osborne - (KS) | Osborne, KS | Southwest Power Pool (SWPP) | 30.4 MWh | May 1957 | Dec 2025 | Distillate Fuel Oil : 61.7% Natural Gas : 38.3% |
| Plum Point Energy Station | NRG Energy Services - Plum Point | Osceola, AR | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 TWh | Aug 2010 | Aug 2026 | Subbituminous Coal : 99.7% |
| Driver Solar | Entergy Arkansas LLC | Osceola, AR | Midcontinent Independent System Operator, Inc. (MISO) | 431.1 GWh | Oct 2024 | Aug 2026 | Solar |
| Polk County Renewables, LLC | Polk County Renewables, LLC | Osceola, NE | Southwest Power Pool (SWPP) | 11.5 GWh | Nov 2018 | Dec 2025 | Wind |
| Foote | Consumers Energy Co - (MI) | Oscoda, MI | Midcontinent Independent System Operator, Inc. (MISO) | 27.6 GWh | Dec 1917 | Dec 2025 | Water |
| Loud | Consumers Energy Co - (MI) | Oscoda, MI | Midcontinent Independent System Operator, Inc. (MISO) | 16.1 GWh | Dec 1912 | Dec 2025 | Water |
| Cooke | Consumers Energy Co - (MI) | Oscoda, MI | Midcontinent Independent System Operator, Inc. (MISO) | 24.3 GWh | Dec 1910 | Dec 2025 | Water |
| Five Channels | Consumers Energy Co - (MI) | Oscoda, MI | Midcontinent Independent System Operator, Inc. (MISO) | 23.0 GWh | Dec 1911 | Dec 2025 | Water |
| Winnebago County Landfill Gas | Winnebago County - (WI) | Oshkosh, WI | Midcontinent Independent System Operator, Inc. (MISO) | 3.2 GWh | Jan 2000 | Dec 2025 | Landfill Gas |
| Oskaloosa | Today's Power, Inc. | Oskaloosa, KS | Southwest Power Pool (SWPP) | 2.1 GWh | Apr 2021 | Dec 2025 | Solar |
| Osmond 1 | Northeast Power | Osmond, NE | Southwest Power Pool (SWPP) | 2.0 MWh | Nov 2023 | Dec 2025 | Distillate Fuel Oil |
| Langdon Wind II LLC | FPL Energy Langdon Wind LLC | Osnabrock, ND | Midcontinent Independent System Operator, Inc. (MISO) | 174.8 GWh | Aug 2008 | Dec 2025 | Wind |
| Browns Falls | Erie Boulevard Hydropower LP | Oswegatchie, NY | New York Independent System Operator (NYIS) | 49.2 GWh | Dec 1922 | Dec 2025 | Water |
| Eel Weir | Erie Boulevard Hydropower LP | Oswegatchie, NY | New York Independent System Operator (NYIS) | 7.6 GWh | Dec 1927 | Dec 2025 | Water |
| Ruler Solar Partners (CSG) | Ruler Solar Partners, LLC | Oswegatchie, NY | New York Independent System Operator (NYIS) | 9.1 GWh | Jul 2023 | Dec 2025 | Solar |
| Royal Solar Partners (CSG) | Royal Solar Partners, LLC | Oswegatchie, NY | New York Independent System Operator (NYIS) | 4.2 GWh | Jul 2023 | Dec 2025 | Solar |
| TJA-NY-1454 CR 15 Oswegatchie, LLC | Dimension Energy LLC | Oswegatchie, NY | New York Independent System Operator (NYIS) | 7.3 GWh | Nov 2024 | Dec 2025 | Solar |
| Oswego | NY USLE Oswego SR104 LLC | Oswego, NY | New York Independent System Operator (NYIS) | 7.3 GWh | Aug 2023 | Dec 2025 | Solar |
| Summit - Oswego | MN8 Energy LLC | Oswego, NY | New York Independent System Operator (NYIS) | 3.7 GWh | May 2023 | Dec 2025 | Solar |
| SSC Oswego II LLC | Reactivate | Oswego, NY | New York Independent System Operator (NYIS) | 6.6 GWh | Oct 2024 | Dec 2025 | Solar |
| High Dam | Oswego, City of - (NY) | Oswego, NY | New York Independent System Operator (NYIS) | 19.1 GWh | Jul 1928 | Dec 2025 | Water |
| Varick | Erie Boulevard Hydropower LP | Oswego, NY | New York Independent System Operator (NYIS) | 19.9 GWh | Dec 1925 | 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% |
| Sithe Independence Station | Sithe/Independence LLC | Oswego, NY | New York Independent System Operator (NYIS) | 6.8 TWh | Jul 1994 | Aug 2026 | Natural Gas |
| Indeck Oswego Energy Center | Indeck-Oswego Ltd Partnership | Oswego, NY | New York Independent System Operator (NYIS) | 117.8 GWh | May 1990 | Dec 2025 | Natural Gas |
| Onondaga County- Clearwater | Tesla Inc. | Oswego, NY | ISO New England (ISNE) | 2.5 GWh | Jun 2017 | Dec 2025 | Solar |
| Russell D Smith | Columbia Basin Hydropower | Othello, WA | Bonneville Power Administration (BPAT) | 14.4 GWh | Aug 1982 | Oct 2025 | Water |
| Lundgren Wind Project | MidAmerican Energy Co | Otho, IA | Midcontinent Independent System Operator, Inc. (MISO) | 604.9 GWh | Jul 2014 | Dec 2025 | Wind |
| MA Military Reservation Wind Project | Air Force Civil Engineer Center | Otis ANG Base Bourne, MA | ISO New England (ISNE) | 5.1 GWh | Nov 2009 | Dec 2025 | Wind |
| Town of Otis Wind Energy Project | Town of Otis - (MA) | Otis, MA | ISO New England (ISNE) | 3.5 GWh | Feb 2018 | Dec 2025 | Wind |
| Nutting Ridge Solar, LLC | REA Investments, LLC | Otisfield, ME | ISO New England (ISNE) | 6.8 GWh | May 2023 | Dec 2025 | Solar |
| NY Finchville Tpke CSG | Finchville Tpke LLC | Otisville, NY | New York Independent System Operator (NYIS) | 2.7 GWh | Nov 2024 | Dec 2025 | Solar |
| Shoddy Hollow | Generate Capital | Otisville, NY | New York Independent System Operator (NYIS) | 8.7 GWh | Nov 2024 | 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 |
| Dayton Hydro | Eagle Creek Renewable Energy, LLC | Ottawa, IL | Midcontinent Independent System Operator, Inc. (MISO) | 9.9 GWh | Dec 1924 | Dec 2025 | Water |
| SAE Ottawa IL | SolAmerica Energy, LLC | Ottawa, IL | Midcontinent Independent System Operator, Inc. (MISO) | 225.0 MWh | Aug 2025 | Dec 2025 | Solar |
| LaSalle Solar 6 | Pivot Energy | Ottawa, IL | Midcontinent Independent System Operator, Inc. (MISO) | 582.0 MWh | Oct 2025 | Dec 2025 | Solar |
| Whirlpool Corporation - Ottawa Wind Farm | Ottawa Wind 24, LLC | Ottawa, OH | PJM Interconnection, LLC (PJM) | 1.9 GWh | Dec 2017 | Dec 2024 | Wind |
| True North Solar, LLC | Avangrid Power LLC | Otto, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 578.6 GWh | Nov 2024 | Aug 2026 | Solar |
| 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 |
| 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 |
| Lemond Solar | Adapture Renewables, Inc. | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 8.7 GWh | May 2017 | Dec 2025 | Solar |
| RJC II Community Solar Garden | RJC II CSG LLC | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | May 2018 | Dec 2025 | Solar |
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 |