Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Uintah | Moon Lake Electric Assn Inc | Neola, UT | Western Area Power Administration - Rocky Mountain Region (WACM) | 6.7 GWh | Jun 1920 | Dec 2024 | Water |
| UL Advanced Wind Turbine Test Facility | West Texas A&M University | Canyon, TX | Southwest Power Pool (SWPP) | 8.8 GWh | Dec 2015 | Dec 2024 | Wind |
| Ulster County Solar | Ulster Solar LLC | Kingston, NY | New York Independent System Operator (NYIS) | 1.6 GWh | Apr 2018 | Dec 2024 | Solar |
| UMASS | Consolidated Edison Development Inc. | Amherst, MA | ISO New England (ISNE) | 5.6 GWh | Sep 2016 | Dec 2024 | Solar |
| UMass Boston | MSS Energy Holdings, LLC (d.b.a. Calibrant Energy) | Dorchester, MA | ISO New England (ISNE) | 1.1 GWh | Dec 1971 | Dec 2024 | Solar |
| UMass PV Lot 22 | Consolidated Edison Development Inc. | Amherst, MA | ISO New England (ISNE) | 3.2 GWh | Aug 2022 | Dec 2024 | Solar |
| Umbriel Solar | Umbriel Solar, LLC | Livington, TX | Midcontinent Independent System Operator, Inc. (MISO) | 318.9 GWh | Sep 2023 | Dec 2025 | Solar |
| UMCES Ground Mount | Standard Solar | Cambridge, MD | PJM Interconnection, LLC (PJM) | 3.5 GWh | Jan 2018 | Dec 2024 | Solar |
| UMCP CHP Plant | Trigen-Cinergy Solutions College Park | College Park, MD | PJM Interconnection, LLC (PJM) | 84.4 GWh | May 2003 | Dec 2024 | Natural Gas : 90.0% Distillate Fuel Oil : 10.0% |
| UMES (MD) - Princess Anne | NVT LICENSES, LLC | Princess Anne, MD | PJM Interconnection, LLC (PJM) | 2.4 GWh | Jan 2011 | Dec 2024 | Solar |
| UMM Wind Turbine | University of Minnesota Morris Campus | Morris, MN | Midcontinent Independent System Operator, Inc. (MISO) | 4.0 GWh | May 2011 | Dec 2024 | Wind |
| UMMS at Pocomoke | Luminace Solar Maryland II, LLC | Pocomoke City, MD | PJM Interconnection, LLC (PJM) | 5.2 GWh | Jan 2013 | Dec 2024 | Solar |
| UN-School House LLC | BCD Project Holdings 1, LLC | Morris Township, PA | PJM Interconnection, LLC (PJM) | 32.2 GWh | Dec 2022 | Dec 2024 | Solar |
| Unbridled Solar | National Grid Renewables | Robards, KY | Midcontinent Independent System Operator, Inc. (MISO) | 279.8 GWh | - | Dec 2025 | Solar |
| Underhill | Underhill Solar LLC | Poughkeepsie, NY | New York Independent System Operator (NYIS) | 3.5 GWh | Feb 2019 | Dec 2024 | Solar |
| Underwood PV2 | Ecoplexus, Inc | Murfreesboro, NC | PJM Interconnection, LLC (PJM) | 30.0 GWh | Sep 2020 | Dec 2024 | Solar |
| UNH 7.9 MW Plant | Emcor Energy Services | Durham, NH | ISO New England (ISNE) | 53.9 GWh | Aug 2006 | Dec 2025 | Landfill Gas : 71.3% Natural Gas : 27.7% Distillate Fuel Oil : 1.1% |
| Union Bridge Solar | Citizens Enterprises Corporation | Union Bridge, MD | PJM Interconnection, LLC (PJM) | 12.3 GWh | Mar 2022 | Dec 2024 | Solar |
| Union Carbide Seadrift Cogen | Union Carbide Corp-Seadrift | Seadrift, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 638.9 GWh | Dec 1963 | Dec 2024 | Natural Gas : 92.1% Other Gas : 7.9% |
| Union County Resource Recovery | Reworld Union (NJ), LLC | Rahway, NJ | PJM Interconnection, LLC (PJM) | 292.6 GWh | Jan 1994 | Dec 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Union Falls | Union Falls Hydro Power LP | Au Sable Forks, NY | New York Independent System Operator (NYIS) | 11.8 GWh | Dec 1986 | Dec 2024 | Water |
| Union Garden | Excelsior Energy Capital | Northfield, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Feb 2021 | Dec 2024 | Solar |
| Union HS at Casa Grande | Luminace Solar Holding, LLC | Casa Grande, AZ | Arizona Public Service Company (AZPS) | 2.9 GWh | Nov 2012 | Dec 2024 | Solar |
| Union Power Station | Entergy Arkansas LLC | El Dorado, AR | Midcontinent Independent System Operator, Inc. (MISO) | 10.1 TWh | Dec 2002 | Dec 2025 | Natural Gas |
| Union Renewable Energy Facility | Lockhart Power Co | Enoree, SC | Duke Energy Carolinas (DUK) | 19.0 GWh | Dec 2014 | Dec 2024 | Landfill Gas |
| Union Springs 40 | EF NY CDG 011, LLC | Union Spring, NY | New York Independent System Operator (NYIS) | 8.8 GWh | Jan 2022 | Dec 2024 | Solar |
| Union Springs 963 | EF NY CDG 003, LLC | Union Spring, NY | New York Independent System Operator (NYIS) | 8.4 GWh | Dec 2021 | Dec 2024 | Solar |
| Union Springs Solar Center | Florida Power & Light Co | Lake Butler, FL | Florida Power & Light Co. (FPL) | 148.7 GWh | Nov 2020 | Dec 2025 | Solar |
| Union Vale | Altus Power America Management, LLC | Lagrangeville, NY | New York Independent System Operator (NYIS) | 1.3 GWh | Jul 2021 | Dec 2024 | Solar |
| Union Valley | Sacramento Municipal Util Dist | Fresh Pond, CA | Balancing Authority of Northern California (BANC) | 76.5 GWh | Sep 1963 | Dec 2024 | Water |
| Unionville | Associated Electric Coop, Inc | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 479.0 MWh | May 1976 | Dec 2024 | Distillate Fuel Oil |
| Unionville City of | City of Unionville - (MO) | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 1.0 MWh | Dec 1934 | Dec 2024 | Distillate Fuel Oil |
| Unionville Hydro Project 2499 NY | Erie Boulevard Hydropower LP | Norwood, NY | New York Independent System Operator (NYIS) | 13.3 GWh | Jun 1984 | Dec 2024 | Water |
| Unit 4 | City of Mt Pleasant - (UT) | Mt Pleasent, UT | PacifiCorp East (PACE) | 2.3 GWh | May 1993 | Oct 2024 | Water |
| United Stationers Supply Solar Electric | CVI CleanCapital Solar 4 LLC | Cranbury, NJ | PJM Interconnection, LLC (PJM) | 2.9 GWh | Nov 2011 | Dec 2024 | Solar |
| Unity Solar | Madison Energy Holdings LLC | Unity, ME | ISO New England (ISNE) | 7.7 GWh | Nov 2021 | Dec 2024 | Solar |
| Univ Minnesota CHP Plant | University of Minnesota Central Utilities | Minneapolis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 166.3 GWh | Oct 2017 | Dec 2024 | Natural Gas : 99.9% |
| Univ of California San Diego Solar | University of California San Diego | La Jolla, CA | California Independent System Operator (CISO) | 2.1 GWh | Nov 2008 | Dec 2024 | Solar |
| Univ of Massachusetts Medical Center | University of Massachusetts Medical | Worcester, MA | ISO New England (ISNE) | 68.7 GWh | Mar 1974 | Dec 2024 | Natural Gas : 99.2% Distillate Fuel Oil : 0.7% |
| Univ of NC Chapel Hill Cogen Facility | University of North Carolina | Chapel Hill, NC | Duke Energy Carolinas (DUK) | 54.2 GWh | Jun 1991 | Dec 2025 | Bituminous Coal : 52.5% Natural Gas : 47.5% |
| Univ of Oregon Central Power Station | University of Oregon | Eugene, OR | Bonneville Power Administration (BPAT) | 936.8 MWh | Aug 2009 | Dec 2024 | Natural Gas : 80.2% Distillate Fuel Oil : 19.8% |
| Univ of San Francisco Cogen | University of San Francisco | San Francisco, CA | California Independent System Operator (CISO) | 5.2 GWh | Aug 1987 | Dec 2024 | Natural Gas |
| University of Arizona - Biosphere 2 | University of Arizona - Biosphere 2 | Oracle, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 53.0 MWh | Oct 1990 | Dec 2024 | Natural Gas : 67.8% Distillate Fuel Oil : 32.2% |
| University of California San Diego Hybri | University of California San Diego | La Jolla, CA | California Independent System Operator (CISO) | 206.8 GWh | Jun 2001 | Dec 2025 | Natural Gas |
| University of California Santa Cruz | University of California Santa Cruz | Santa Cruz, CA | California Independent System Operator (CISO) | 35.2 GWh | Aug 2013 | Dec 2024 | Natural Gas : 91.7% Solar : 8.3% |
| University of Colorado | University of Colorado | Boulder, CO | Public Service Company of Colorado (PSCO) | 4.6 GWh | Jul 1992 | Jan 2025 | Natural Gas : 99.9% |
| University of Delaware Wind Turbine | First State Marine Wind | Lewes, DE | PJM Interconnection, LLC (PJM) | 5.0 GWh | Jun 2010 | Dec 2025 | Wind |
| University of Florida | Duke Energy Florida, LLC | Gainesville, FL | Duke Energy Florida, Inc. (FPC) | 379.0 GWh | Dec 1993 | Dec 2024 | Natural Gas |
| University of Illinois Abbott Power Plt | University of Illinois | Champaign, IL | Midcontinent Independent System Operator, Inc. (MISO) | 211.1 GWh | Oct 1940 | Dec 2024 | Natural Gas : 97.4% Bituminous Coal : 2.6% |
| University of Illinois Cogen Facility | University of Illinois | Chicago, IL | PJM Interconnection, LLC (PJM) | 114.1 GWh | Mar 1993 | Dec 2025 | Natural Gas : 99.9% |
| University of Iowa Main Power Plant | University of Iowa | Iowa City, IA | Midcontinent Independent System Operator, Inc. (MISO) | 3.8 GWh | Dec 1946 | Sep 2024 | Natural Gas : 51.7% Other Biomass Solids : 19.1% Wood/Wood Waste Solids : 18.4% Bituminous Coal : 10.8% |
| University of Michigan | University of Michigan | Ann Arbor, MI | Midcontinent Independent System Operator, Inc. (MISO) | 213.0 GWh | Dec 1974 | Dec 2025 | Natural Gas |
| University of Northern Iowa | University of Northern Iowa | Cedar Falls, IA | Midcontinent Independent System Operator, Inc. (MISO) | 20.8 GWh | Oct 1982 | Dec 2025 | Natural Gas : 72.3% Petroleum Coke : 18.0% Bituminous Coal : 9.6% |
| University of Notre Dame | University of Notre Dame | Notre Dame, IN | PJM Interconnection, LLC (PJM) | 86.5 GWh | Jun 1952 | Dec 2025 | Natural Gas : 99.4% Distillate Fuel Oil : 0.6% |
| University of Rochester | University of Rochester | Rochester, NY | New York Independent System Operator (NYIS) | 24.7 GWh | Sep 2005 | Nov 2024 | Natural Gas |
| University of San Diego | Bloom Energy 2009 PPA | San Diego, CA | California Independent System Operator (CISO) | 8.2 GWh | Nov 2016 | Dec 2024 | Natural Gas |
| University of Tennessee Steam Plant | University of Tennessee | Knoxville, TN | Tennessee Valley Authority (TVA) | 33.4 GWh | May 1996 | Dec 2025 | Natural Gas |
| University of the Pacific | The Greater Light USA LLC | Stockton, CA | California Independent System Operator (CISO) | 6.5 GWh | Apr 2022 | Dec 2024 | Solar |
| University of Washington Power Plant | University of Washington | Seattle, WA | Seattle City Light (SCL) | 1.8 GWh | Dec 1968 | Dec 2025 | Natural Gas : 93.4% Distillate Fuel Oil : 6.6% |
| University Park North | LSP University Park LLC | University Park, IL | PJM Interconnection, LLC (PJM) | 123.7 GWh | May 2002 | Dec 2024 | Natural Gas |
| University Park Solar | SS PA II PSU LLC | State College, PA | PJM Interconnection, LLC (PJM) | 2.3 GWh | Nov 2018 | Dec 2024 | Solar |
| University Park South | University Park Energy LLC | University Park, IL | PJM Interconnection, LLC (PJM) | 70.0 GWh | May 2001 | Dec 2024 | Natural Gas |
| University Solar, LLC | AES Distributed Energy | West Greenwich, RI | ISO New England (ISNE) | 28.5 GWh | Nov 2019 | Dec 2025 | Solar |
| Upchurch Solar Center LLC | Cypress Creek Renewables | Elm City, NC | Duke Energy Progress East (CPLE) | 8.0 GWh | Nov 2014 | Dec 2024 | Solar |
| Upland Prairie | Interstate Power and Light Co | Spencer, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 TWh | Feb 2019 | Dec 2025 | Wind |
| Upper Barker | KEI (Maine) Power Management (III) LLC | Auburn, ME | ISO New England (ISNE) | 4.7 GWh | Apr 1987 | Dec 2024 | Water |
| Upper Beaver | Beaver City Corporation | Beaver, UT | PacifiCorp East (PACE) | 10.1 GWh | Jul 1907 | Dec 2024 | Water |
| Upper Beaver Falls Project | Eagle Creek Renewable Energy, LLC | Beaver Falls, NY | New York Independent System Operator (NYIS) | 6.0 GWh | Dec 1984 | Dec 2024 | Water |
| Upper Blackstone (MA) Treasure Valley | Nexamp Treasure Valley Solar, LLC | Rutland, MA | ISO New England (ISNE) | 7.3 GWh | Jun 2014 | Dec 2024 | Solar |
| Upper Dawson | Turlock Irrigation District | La Grange, CA | Turlock Irrigation District (TIDC) | 10.7 GWh | Oct 1983 | Dec 2024 | Water |
| Upper Falls | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 59.9 GWh | Mar 1922 | Dec 2024 | Water |
| Upper Gorge | Los Angeles Department of Water & Power | Bishop, CA | Los Angeles Department of Water and Power (LDWP) | 99.9 GWh | May 1953 | Dec 2024 | Water |
| Upper Malad | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 58.3 GWh | May 1948 | Dec 2024 | Water |
| Upper Marlboro 1 CSG | Nautilus Solar Solutions | Upper Marlboro, MD | PJM Interconnection, LLC (PJM) | 3.1 GWh | Nov 2019 | Dec 2024 | Solar |
| Upper Mechanicville | New York State Elec & Gas Corp | Town of Stillwater, NY | New York Independent System Operator (NYIS) | 78.7 GWh | Aug 1983 | Dec 2024 | Water |
| Upper Molina | U S Bureau of Reclamation | Molina, CO | Western Area Power Administration - Rocky Mountain Region (WACM) | 23.8 GWh | Nov 1962 | Nov 2024 | Water |
| Upper Newton Falls | Erie Boulevard Hydropower LP | Newton Falls, NY | New York Independent System Operator (NYIS) | 6.4 GWh | Dec 1926 | Dec 2024 | Water |
| Upper Pacolet Hydro | Lockhart Power Co | Pacolet, SC | Duke Energy Carolinas (DUK) | 4.0 GWh | Jan 2013 | Dec 2024 | Water |
| Upper Power Plant | City of Idaho Falls - (ID) | Idaho Falls, ID | PacifiCorp East (PACE) | 44.9 GWh | Aug 1982 | Dec 2024 | Water |
| Upper Salmon A | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 108.0 GWh | Aug 1937 | Dec 2024 | Water |
| Upper Salmon B | Idaho Power Co | Hagerman, ID | Idaho Power Company (IPCO) | 102.3 GWh | Aug 1947 | Dec 2024 | Water |
| Upper Sterling | City of Rock Falls - (IL) | Rock Falls, IL | Midcontinent Independent System Operator, Inc. (MISO) | 8.9 GWh | May 1988 | Dec 2024 | Water |
| Upriver Dam Hydro Plant | City of Spokane | Spokane, WA | Avista Corporation (AVA) | 48.4 GWh | Dec 1935 | Dec 2024 | Water |
| Upson County GA S1 LLC | SolRiver Capital LLC | Thomaston, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.5 GWh | Mar 2023 | Dec 2024 | Solar |
| Upson Rocky Creek Solar Plant | Axium US Solar Holdings LLC | Thomaston, GA | Southern Company Services, Inc. - Trans (SOCO) | 1.2 GWh | May 2012 | Dec 2024 | Solar |
| Upstream Wind Energy LLC | Invenergy Services LLC | Neligh, NE | Southwest Power Pool (SWPP) | 750.5 GWh | Nov 2018 | Dec 2025 | Wind |
| Upton Community Solar | Upton Solar, LLC | Upton, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2017 | Dec 2024 | Solar |
| Upton County Solar | Consolidated Edison Development Inc. | McCamey, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 299.1 GWh | Nov 2017 | Dec 2025 | Solar |
| Urbana-Heartland | Today's Power, Inc. | Chanute, KS | Southwest Power Pool (SWPP) | 2.3 GWh | Apr 2021 | Dec 2024 | Solar |
| Urquhart | Dominion Energy South Carolina, Inc | Beech Island, SC | Dominion Energy South Carolina, Inc. (SCEG) | 1.6 TWh | Nov 1953 | Dec 2025 | Natural Gas : 99.9% |
| Ursa Community Solar | Ursa Community Solar | Farmington, MN | Midcontinent Independent System Operator, Inc. (MISO) | 7.9 GWh | Dec 2016 | Dec 2024 | Solar |
| Urtica Solar Project | Greenbacker Renewable Energy Corporation | Ellensburg, WA | Puget Sound Energy, Inc. (PSEI) | 10.6 GWh | Oct 2022 | Dec 2024 | Solar |
| US Borax | U S Borax Inc | Boron, CA | California Independent System Operator (CISO) | 274.5 GWh | Jun 1984 | Dec 2025 | Natural Gas |
| US Foods Solar | CD US Solar MT1 LLC | Perth Amboy, NJ | PJM Interconnection, LLC (PJM) | 5.7 GWh | Jul 2012 | Apr 2024 | Solar |
| US GSA Heating and Transmission | US GSA Heating and Transmission | Washington, DC | PJM Interconnection, LLC (PJM) | 34.4 GWh | Jun 2004 | Dec 2025 | Natural Gas |
| US GSA - Sacramento | Tesla Inc. | Sacramento, CA | Balancing Authority of Northern California (BANC) | 2.0 GWh | Feb 2018 | Dec 2024 | Solar |
| US Gypsum Oakfield | U S Gypsum Co | Oakfield, NY | New York Independent System Operator (NYIS) | 1.3 GWh | Mar 1986 | Dec 2024 | Natural Gas |
| US Magnesium | US Magnesium | Rowley, UT | PacifiCorp East (PACE) | 82.3 MWh | Dec 1971 | Sep 2024 | Natural Gas |
| US-TOPCO (Soccer Center) | Tesla Inc. | Lancaster, CA | California Independent System Operator (CISO) | 7.0 GWh | Nov 2016 | Dec 2024 | Solar |
| USAA Black Bear Energy | Powerflex | Cranbury, NJ | PJM Interconnection, LLC (PJM) | 3.0 GWh | Oct 2018 | Dec 2024 | Solar |
Summary of Power Plants By State
Figures are based on December 2025 generation numbers.| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Alabama | # 7 | 76 | 12,766.12 GWh |
| Alaska | # 48 | 139 | 625.46 GWh |
| Arizona | # 16 | 183 | 8,962.31 GWh |
| Arkansas | # 29 | 114 | 5,525.50 GWh |
| California | # 5 | 1,683 | 14,393.99 GWh |
| Colorado | # 31 | 297 | 4,649.38 GWh |
| Connecticut | # 34 | 162 | 4,087.83 GWh |
| Delaware | # 49 | 33 | 469.96 GWh |
| District of Columbia | # 51 | 16 | 14.80 GWh |
| Florida | # 3 | 333 | 19,379.32 GWh |
| Georgia | # 8 | 248 | 12,492.24 GWh |
| Hawaii | # 46 | 70 | 814.97 GWh |
| Idaho | # 41 | 146 | 2,123.12 GWh |
| Illinois | # 4 | 379 | 17,546.79 GWh |
| Indiana | # 13 | 214 | 9,789.95 GWh |
| Iowa | # 20 | 293 | 7,310.28 GWh |
| Kansas | # 28 | 183 | 5,586.75 GWh |
| Kentucky | # 22 | 60 | 6,716.43 GWh |
| Louisiana | # 17 | 84 | 8,587.03 GWh |
| Maine | # 45 | 215 | 1,484.81 GWh |
| Maryland | # 37 | 203 | 3,225.85 GWh |
| Massachusetts | # 43 | 640 | 2,073.13 GWh |
| Michigan | # 11 | 269 | 11,734.82 GWh |
| Minnesota | # 27 | 764 | 5,712.30 GWh |
| Mississippi | # 24 | 56 | 6,090.79 GWh |
| Missouri | # 23 | 125 | 6,623.76 GWh |
| State | Rank | Active Plants | Dec 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 70 | 2,639.28 GWh |
| Nebraska | # 36 | 125 | 3,667.32 GWh |
| Nevada | # 38 | 114 | 3,217.22 GWh |
| New Hampshire | # 44 | 56 | 1,878.83 GWh |
| New Jersey | # 30 | 387 | 5,182.27 GWh |
| New Mexico | # 35 | 142 | 3,818.41 GWh |
| New York | # 10 | 950 | 11,800.05 GWh |
| North Carolina | # 9 | 904 | 12,153.04 GWh |
| North Dakota | # 33 | 58 | 4,218.72 GWh |
| Ohio | # 6 | 198 | 13,425.53 GWh |
| Oklahoma | # 18 | 141 | 7,637.23 GWh |
| Oregon | # 21 | 272 | 6,788.64 GWh |
| Pennsylvania | # 2 | 252 | 22,539.49 GWh |
| Rhode Island | # 47 | 100 | 775.70 GWh |
| South Carolina | # 15 | 207 | 8,967.44 GWh |
| South Dakota | # 42 | 52 | 2,122.20 GWh |
| Tennessee | # 19 | 88 | 7,328.17 GWh |
| Texas | # 1 | 947 | 46,150.81 GWh |
| Utah | # 39 | 125 | 2,845.12 GWh |
| Vermont | # 50 | 116 | 189.85 GWh |
| Virginia | # 14 | 237 | 9,421.16 GWh |
| Washington | # 12 | 135 | 10,635.09 GWh |
| West Virginia | # 26 | 39 | 5,763.55 GWh |
| Wisconsin | # 25 | 243 | 5,804.32 GWh |
| Wyoming | # 32 | 70 | 4,436.68 GWh |