Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Otay Mesa Generating Project | Otay Mesa Energy Center LLC | San Diego, CA | California Independent System Operator (CISO) | 1.4 TWh | Sep 2009 | Mar 2026 | Natural Gas |
| Oswego Harbor Power | Oswego Harbor Power | Oswego, NY | New York Independent System Operator (NYIS) | 130.8 GWh | May 1975 | Feb 2026 | Residual Fuel Oil : 98.0% Natural Gas : 2.0% |
| Oswego County Energy Recovery | Oswego County | Fulton, NY | New York Independent System Operator (NYIS) | 8.1 GWh | Jan 1986 | Dec 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| High Dam | Oswego City of | Oswego, NY | New York Independent System Operator (NYIS) | 25.6 GWh | Jul 1928 | Dec 2024 | Water |
| OSLH, LLC | OSLH, LLC | Bend, OR | PacifiCorp West (PACW) | 22.2 GWh | Nov 2016 | Dec 2024 | Solar |
| Osceola Windpower LLC | Osceola Windpower LLC | Harris, IA | Southwest Power Pool (SWPP) | 382.5 GWh | Jun 2008 | Mar 2026 | Wind |
| Osceola Windpower II | Osceola Windpower II | Harris, IA | Midcontinent Independent System Operator, Inc. (MISO) | 191.7 GWh | Aug 2008 | Mar 2026 | Wind |
| Osborn Wind Energy | Osborn Wind Energy LLC | Stewartsville, MO | Southwest Power Pool (SWPP) | 670.8 GWh | Nov 2016 | Mar 2026 | Wind |
| South Fork Wind | Orsted Wind Power North America LLC | East Hampton, NY | New York Independent System Operator (NYIS) | 512.1 GWh | Jun 2024 | Mar 2026 | Wind |
| Western Trail Wind, LLC | Orsted Onshore North America | Electra, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 1.1 TWh | Mar 2022 | Mar 2026 | Wind |
| Don A Campbell 1 Geothermal | ORNI 47, LLC | Gabbs, NV | Nevada Power Company (NEVP) | 110.0 GWh | Dec 2013 | Dec 2024 | Geothermal |
| Don A Campbell 2 Geothermal | ORNI 37 LLC | Luning, NV | Nevada Power Company (NEVP) | 93.5 GWh | Aug 2015 | Dec 2024 | Geothermal |
| Arrowleaf Solar and Storage | ORNI 30 LLC | Brawley, CA | Imperial Irrigation District (IID) | 19.5 GWh | - | Mar 2026 | Solar |
| Ormond Beach | Ormond Beach Power, LLC | Oxnard, CA | California Independent System Operator (CISO) | 43.1 GWh | Jul 1971 | Aug 2025 | Natural Gas |
| Stillwater Solar PV II | Ormat Stillwater Solar PV II, LLC | Fallon, NV | Nevada Power Company (NEVP) | 24.3 GWh | May 2018 | Dec 2024 | Solar |
| Stillwater Facility | Ormat Stillwater LLC | Fallon, NV | Nevada Power Company (NEVP) | 128.3 GWh | Feb 2009 | Dec 2024 | Geothermal : 70.5% Solar : 29.5% |
| Salt Wells | Ormat Salt Wells LLC | Fallon, NV | Nevada Power Company (NEVP) | 70.0 GWh | Feb 2009 | Dec 2024 | Geothermal |
| OREG 2 Inc | Ormat Nevada Inc | Culbertson, MT | Southwest Power Pool (SWPP) | 127.4 GWh | Nov 2008 | Mar 2026 | Waste Heat |
| Richard Burdette Geothermal | Ormat Nevada Inc | Reno, NV | Nevada Power Company (NEVP) | 97.6 GWh | Oct 2005 | Dec 2024 | Geothermal |
| OREG 3 Inc | Ormat Nevada Inc | Trimont, MN | Midcontinent Independent System Operator, Inc. (MISO) | 43.7 GWh | Jul 2010 | Mar 2026 | Waste Heat |
| Jersey Valley Geothermal Power Plant | Ormat Nevada Inc | Imlay, NV | Nevada Power Company (NEVP) | 60.9 GWh | Nov 2010 | Dec 2024 | Geothermal |
| Galena 2 Geothermal Power Plant | Ormat Nevada Inc | Reno, NV | Nevada Power Company (NEVP) | 36.7 GWh | Mar 2007 | Dec 2024 | Geothermal |
| McGinness Hills | Ormat Nevada Inc | Austin, NV | Nevada Power Company (NEVP) | 602.8 GWh | Apr 2012 | Dec 2024 | Geothermal |
| Galena 3 Geothermal Power Plant | Ormat Nevada Inc | Reno, NV | Nevada Power Company (NEVP) | 82.6 GWh | Jan 2008 | Dec 2024 | Geothermal |
| Tuscarora Geothermal Power Plant | Ormat Nevada Inc | Tuscarora, NV | Nevada Power Company (NEVP) | 124.4 GWh | Dec 2011 | Dec 2024 | Geothermal |
| North Brawley Geothermal Plant | Ormat Nevada Inc | Brawley, CA | Imperial Irrigation District (IID) | 16.9 GWh | Sep 2009 | Dec 2024 | Geothermal |
| OREG 1 Inc | Ormat Nevada Inc | Culbertson, MT | Southwest Power Pool (SWPP) | 128.7 GWh | Jun 2006 | Mar 2026 | Waste Heat |
| Brady | Ormat Nevada Inc | Fallon, NV | Nevada Power Company (NEVP) | 88.7 GWh | May 1992 | Dec 2024 | Geothermal |
| Ormesa II | Ormat Nevada Inc | Holtville, CA | Imperial Irrigation District (IID) | 131.7 GWh | Apr 1989 | Dec 2024 | Geothermal |
| Dixie Valley | Ormat Nevada Inc | Fallon, NV | California Independent System Operator (CISO) | 455.3 GWh | May 1988 | Mar 2026 | Geothermal |
| Mammoth G3 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 103.1 GWh | Nov 1990 | Dec 2024 | Geothermal |
| Mammoth G1 | Ormat Nevada Inc | Mammoth lakes, CA | California Independent System Operator (CISO) | 59.6 GWh | Nov 1984 | Dec 2024 | Geothermal |
| Mammoth G2 | Ormat Nevada Inc | Mammoth Lakes, CA | California Independent System Operator (CISO) | 82.3 GWh | Nov 1990 | Dec 2024 | Geothermal |
| Beowawe | Ormat Nevada Inc | Beowawe, NV | Nevada Power Company (NEVP) | 107.2 GWh | Nov 1985 | Dec 2024 | Geothermal |
| Ormesa I | Ormat Nevada Inc | Holtville, CA | Imperial Irrigation District (IID) | 70.2 GWh | Nov 1986 | Dec 2024 | Geothermal |
| Desert Peak Power Plant | Ormat Nevada Inc | Fernley, NV | Nevada Power Company (NEVP) | 72.7 GWh | May 2006 | Dec 2024 | Geothermal |
| Steamboat Hills LP | Ormat Nevada Inc | Reno, NV | Nevada Power Company (NEVP) | 231.7 GWh | Jan 1988 | Dec 2024 | Geothermal |
| Ormesa III | Ormat Nevada Inc | Holtville, CA | Imperial Irrigation District (IID) | 44.4 GWh | Apr 1989 | Dec 2024 | Geothermal |
| McGinness Hills 3 | Ormat Nevada Inc | Austin, NV | Nevada Power Company (NEVP) | 431.3 GWh | Nov 2018 | Mar 2026 | Geothermal |
| Cove Fort | Ormat Cove Fort LLC | Cove Fort, UT | PacifiCorp East (PACE) | 120.8 GWh | Nov 2013 | Dec 2024 | Geothermal |
| Stanton Energy Center | Orlando Utilities Comm | Orlando, FL | Florida Municipal Power Pool (FMPP) | 5.4 TWh | Jun 1987 | Mar 2026 | Bituminous Coal : 55.5% Natural Gas : 43.9% Landfill Gas : 0.6% |
| Indian River Plant | Orlando Utilities Comm | Titusville, FL | Florida Municipal Power Pool (FMPP) | 5.7 GWh | Jun 1989 | Dec 2024 | Natural Gas : 97.2% Distillate Fuel Oil : 2.8% |
| Osceola Generating Station (FL) | Orlando Utilities Comm | St. Cloud, FL | Duke Energy Florida, Inc. (FPC) | 623.0 MWh | Nov 2001 | Dec 2024 | Natural Gas : 87.4% Distillate Fuel Oil : 12.6% |
| Orion Solar II | Orion Solar II, LLC | Arvin, CA | California Independent System Operator (CISO) | 19.0 GWh | May 2014 | Dec 2024 | Solar |
| Orion Solar I | Orion Solar I LLC | Arvin, CA | California Independent System Operator (CISO) | 28.3 GWh | Mar 2014 | Dec 2024 | Solar |
| Engineered Carbons Borger Cogen | Orion Engineered Carbons | Borger, TX | Southwest Power Pool (SWPP) | 80.2 GWh | Sep 1982 | Dec 2024 | Other Gas : 99.5% |
| Ivanhoe Generation Facility | Orion Engineered Carbons | Franklin, LA | Midcontinent Independent System Operator, Inc. (MISO) | 53.2 GWh | Mar 2023 | Dec 2024 | Waste Heat |
| Benton County Wind Farm | Orion Energy Group LLC | Earl Park, IN | Midcontinent Independent System Operator, Inc. (MISO) | 357.6 GWh | Apr 2008 | Dec 2024 | Wind |
| Camp Grove Wind Farm | Orion Energy Group LLC | Wyoming, IL | PJM Interconnection, LLC (PJM) | 406.4 GWh | Nov 2007 | Dec 2024 | Wind |
| Orion Community Solar | Orion Community Solar | St. Joseph, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | Dec 2016 | Dec 2024 | Solar |
| Wheatland | Origis Energy USA, Inc | Wheatland, IN | Midcontinent Independent System Operator, Inc. (MISO) | 46.9 GWh | - | Mar 2026 | Solar |
| Escalante (NM) | Origis Energy USA, Inc | Grants, NM | Public Service Company of New Mexico (PNM) | 527.6 GWh | May 2024 | Mar 2026 | Solar |
| Whistling Duck I | Origis Energy USA, Inc | Williston, FL | Duke Energy Florida, Inc. (FPC) | 43.7 GWh | - | Mar 2026 | Solar |
| Swift Air Solar III | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 79.5 GWh | - | Mar 2026 | Solar |
| Swift Air Solar II | Origis Energy USA, Inc | Odessa, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 119.3 GWh | - | Mar 2026 | Solar |
| Walker Springs I | Origis Energy USA, Inc | Gainestown, AL | Southern Company Services, Inc. - Trans (SOCO) | 35.3 GWh | - | Mar 2026 | Solar |
| Swift Air Solar I | Origis Energy USA, Inc | Goldsmith, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 402.4 GWh | - | Mar 2026 | Solar |
| Optimist | Origis Energy USA, Inc | West Point, MS | Tennessee Valley Authority (TVA) | 101.0 GWh | - | Mar 2026 | Solar |
| MA Solar Storage 1 Hybrid | Origis Energy USA, Inc | Sterling, MA | ISO New England (ISNE) | 1.1 GWh | Feb 2018 | Dec 2024 | Solar |
| Golden Triangle | Origis Energy USA, Inc | Lowndes, MS | Tennessee Valley Authority (TVA) | 448.6 GWh | - | Mar 2026 | Solar |
| Wing | Origis Energy USA, Inc | Wing, AL | Southern Company Services, Inc. - Trans (SOCO) | 170.5 GWh | Mar 2023 | Mar 2026 | Solar |
| Rice Creek | Origis Energy USA, Inc | Putnam, FL | Florida Power & Light Co. (FPL) | 175.6 GWh | Nov 2024 | Mar 2026 | Solar |
| Golden Triangle II | Origis Energy USA, Inc | St.Artesia, MS | Tennessee Valley Authority (TVA) | 324.7 GWh | Apr 2024 | Mar 2026 | Solar |
| Oriana Solar LLC | Oriana Solar LLC | Victoria, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 212.9 GWh | - | Mar 2026 | Solar |
| OES Biogas Power | Organic Energy Solutions, Inc. | San Bernardino, CA | California Independent System Operator (CISO) | 4.9 GWh | - | Dec 2024 | Other Biomass Gas |
| Oregon State University Energy Center | Oregon State University | Corvallis, OR | Bonneville Power Administration (BPAT) | 36.2 GWh | May 2010 | Mar 2026 | Natural Gas |
| Dry Creek LFG to Energy Project | Oregon Environmental Industries LLC | Eagle Point, OR | PacifiCorp West (PACW) | 19.0 GWh | Jun 2007 | Dec 2024 | Landfill Gas |
| Oregon Clean Energy Center | Oregon Clean Energy Center | Oregon, OH | PJM Interconnection, LLC (PJM) | 5.9 TWh | Jun 2017 | Mar 2026 | Natural Gas |
| Orchard Windfarm 2, LLC | Orchard Windfarm, LLC | Lexington, OR | Bonneville Power Administration (BPAT) | 29.8 GWh | Nov 2020 | Dec 2024 | Wind |
| Orchard Windfarm 3, LLC | Orchard Windfarm, LLC | Lexington, OR | Bonneville Power Administration (BPAT) | 27.9 GWh | Nov 2020 | Dec 2024 | Wind |
| Orchard Windfarm 4, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 29.7 GWh | Nov 2020 | Dec 2024 | Wind |
| Orchard Windfarm 1, LLC | Orchard Windfarm, LLC | Lexington, OR | PacifiCorp West (PACW) | 29.9 GWh | Nov 2020 | Dec 2024 | Wind |
| Orchard Ranch Solar | Orchard Ranch Solar, LLC | Orchard, ID | Idaho Power Company (IPCO) | 45.8 GWh | Feb 2017 | Mar 2026 | Solar |
| Heber Geothermal | ORCAL Geothermal, Inc | Heber, CA | Imperial Irrigation District (IID) | 384.9 GWh | May 1985 | Dec 2024 | Geothermal |
| Second Imperial Geothermal | ORCAL Geothermal, Inc | Heber, CA | Imperial Irrigation District (IID) | 302.3 GWh | May 1993 | Dec 2024 | Geothermal |
| Orange Grove Peaking Facility | Orange Grove Energy LP | Pala, CA | California Independent System Operator (CISO) | 23.6 GWh | May 2010 | Dec 2024 | Natural Gas |
| Orange Grove | Orange Grove | Jim Wells, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 244.0 GWh | - | Mar 2026 | Solar |
| Plant No 1 Orange County | Orange County Sanitation Dist | Fountain Valley, CA | California Independent System Operator (CISO) | 40.3 GWh | May 1993 | Dec 2024 | Other Biomass Gas : 80.1% Natural Gas : 19.9% |
| Plant No 2 Orange County | Orange County Sanitation Dist | Huntington Beach, CA | California Independent System Operator (CISO) | 59.3 GWh | May 1993 | Dec 2024 | Other Biomass Gas : 73.7% Natural Gas : 26.0% |
| OR Solar 2, LLC | OR Solar 2, LLC | Eagle Point, OR | PacifiCorp West (PACW) | 12.7 GWh | Sep 2020 | Dec 2024 | Solar |
| Optimum Wind 7 LLC | Optimum Wind 7 LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 11.0 GWh | Feb 2017 | Dec 2024 | Wind |
| Optimum Wind 6 LLC | Optimum Wind 6 LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 8.7 GWh | Feb 2017 | Dec 2024 | Wind |
| Optimum Wind 5 LLC | Optimum Wind 5 LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 9.0 GWh | Feb 2017 | Dec 2024 | Wind |
| Optimum Wind 4 LLC | Optimum Wind 4 LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 10.5 GWh | Feb 2017 | Dec 2024 | Wind |
| Optimum Wind 3 LLC | Optimum Wind 3 LLC | Nevada, IA | Midcontinent Independent System Operator, Inc. (MISO) | 10.4 GWh | Feb 2017 | Dec 2024 | Wind |
| Chocowinity Solar LLC | Oppidum Renewables USA, LLC | Chocowinity, NC | Duke Energy Carolinas (DUK) | 6.6 GWh | Nov 2014 | Dec 2024 | Solar |
| Rockwell Solar LLC | Oppidum Renewables USA, LLC | Rockwell, NC | Duke Energy Carolinas (DUK) | 4.5 GWh | Nov 2014 | Dec 2024 | Solar |
| Gates Solar LLC | Oppidum Renewables USA, LLC | Eure, NC | PJM Interconnection, LLC (PJM) | 7.6 GWh | Nov 2015 | Dec 2024 | Solar |
| Cirrus Solar LLC | Oppidum Renewables USA, LLC | Bunn, NC | Duke Energy Carolinas (DUK) | 6.4 GWh | Nov 2014 | Dec 2024 | Solar |
| Montgomery Solar LLC | Oppidum Renewables USA, LLC | Biscoe, NC | Duke Energy Carolinas (DUK) | 34.4 GWh | Nov 2015 | Dec 2024 | Solar |
| Gamble Solar | Oppidum Renewables USA, LLC | Bostic, NC | Duke Energy Carolinas (DUK) | 5.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Salisbury Solar | Oppidum Renewables USA, LLC | Salisbury, NC | Duke Energy Carolinas (DUK) | 7.6 GWh | Jul 2018 | Dec 2024 | Solar |
| Wadesboro Solar | Oppidum Renewables USA, LLC | Wadesboro, NC | Duke Energy Progress East (CPLE) | 8.9 GWh | Nov 2017 | Dec 2024 | Solar |
| Bedford Solar (Oppidum) | Oppidum Renewables USA, LLC | Bedford, VA | PJM Interconnection, LLC (PJM) | 4.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Tolson Solar | Oppidum Renewables USA, LLC | Tarboro, NC | PJM Interconnection, LLC (PJM) | 4.1 GWh | Nov 2015 | Dec 2024 | Solar |
| Battleboro Farm | Oppidum Renewables USA, LLC | South Whitakers, NC | PJM Interconnection, LLC (PJM) | 8.0 GWh | Nov 2015 | Dec 2024 | Solar |
| Yadkinville Solar | Oppidum Renewables USA, LLC | Yadkinville, NC | Duke Energy Carolinas (DUK) | 4.5 GWh | Nov 2015 | Dec 2024 | Solar |
| Mayberry Solar LLC | Oppidum Renewables USA, LLC | Mt. Airy, NC | Duke Energy Carolinas (DUK) | 1.4 GWh | Sep 2011 | Dec 2024 | Solar |
| Progress Solar 1, LLC | Oppidum Renewables USA, LLC | Bunn, NC | Duke Energy Progress East (CPLE) | 3.7 GWh | Sep 2012 | Dec 2024 | Solar |
| Ararat Rock Solar, LLC | Oppidum Renewables USA, LLC | Mount Airy, NC | Duke Energy Carolinas (DUK) | 5.2 GWh | Aug 2012 | Dec 2024 | Solar |
Summary of Power Plants By State
Figures are based on March 2026 generation numbers.| State | Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Alabama | # 10 | 76 | 10,194.39 GWh |
| Alaska | # 48 | 139 | 566.31 GWh |
| Arizona | # 15 | 183 | 8,256.99 GWh |
| Arkansas | # 25 | 114 | 4,973.03 GWh |
| California | # 5 | 1,656 | 15,197.83 GWh |
| Colorado | # 30 | 294 | 4,491.41 GWh |
| Connecticut | # 31 | 161 | 3,992.67 GWh |
| Delaware | # 49 | 33 | 248.78 GWh |
| District of Columbia | # 51 | 16 | 18.32 GWh |
| Florida | # 3 | 334 | 19,802.71 GWh |
| Georgia | # 8 | 247 | 10,697.11 GWh |
| Hawaii | # 46 | 69 | 784.18 GWh |
| Idaho | # 42 | 144 | 1,957.44 GWh |
| Illinois | # 4 | 379 | 15,489.73 GWh |
| Indiana | # 12 | 216 | 9,257.49 GWh |
| Iowa | # 21 | 289 | 6,478.67 GWh |
| Kansas | # 23 | 183 | 5,489.55 GWh |
| Kentucky | # 29 | 59 | 4,637.74 GWh |
| Louisiana | # 17 | 86 | 8,003.69 GWh |
| Maine | # 45 | 212 | 1,313.24 GWh |
| Maryland | # 39 | 202 | 2,834.84 GWh |
| Massachusetts | # 44 | 639 | 1,383.17 GWh |
| Michigan | # 13 | 268 | 8,564.76 GWh |
| Minnesota | # 26 | 760 | 4,875.53 GWh |
| Mississippi | # 24 | 55 | 5,467.46 GWh |
| Missouri | # 22 | 125 | 5,500.53 GWh |
| State | Rank | Active Plants | Mar 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 69 | 2,464.49 GWh |
| Nebraska | # 37 | 121 | 3,330.39 GWh |
| Nevada | # 35 | 114 | 3,487.65 GWh |
| New Hampshire | # 43 | 54 | 1,520.13 GWh |
| New Jersey | # 28 | 379 | 4,705.05 GWh |
| New Mexico | # 33 | 142 | 3,587.89 GWh |
| New York | # 9 | 935 | 10,247.40 GWh |
| North Carolina | # 11 | 896 | 9,821.46 GWh |
| North Dakota | # 32 | 59 | 3,854.12 GWh |
| Ohio | # 6 | 200 | 12,175.28 GWh |
| Oklahoma | # 19 | 142 | 7,305.54 GWh |
| Oregon | # 20 | 266 | 6,583.30 GWh |
| Pennsylvania | # 2 | 249 | 20,000.86 GWh |
| Rhode Island | # 47 | 100 | 610.71 GWh |
| South Carolina | # 14 | 204 | 8,273.25 GWh |
| South Dakota | # 41 | 52 | 2,184.62 GWh |
| Tennessee | # 18 | 88 | 7,335.80 GWh |
| Texas | # 1 | 961 | 46,858.09 GWh |
| Utah | # 38 | 125 | 3,184.50 GWh |
| Vermont | # 50 | 117 | 217.82 GWh |
| Virginia | # 16 | 233 | 8,059.42 GWh |
| Washington | # 7 | 131 | 10,773.76 GWh |
| West Virginia | # 34 | 40 | 3,543.98 GWh |
| Wisconsin | # 27 | 239 | 4,794.79 GWh |
| Wyoming | # 36 | 70 | 3,358.51 GWh |