Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Univ of Massachusetts Medical Center | University of Massachusetts Medical | Worcester, MA | ISO New England (ISNE) | 63.3 GWh | Mar 1974 | Dec 2025 | Natural Gas : 99.3% Distillate Fuel Oil : 0.6% |
| UI RCP Woodbridge FC | United Illuminating Co | Woodbridge, CT | ISO New England (ISNE) | 16.7 GWh | Nov 2016 | Dec 2025 | Natural Gas |
| USS Wolf Solar LLC | United States Solar Corporation | Wood Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jun 2023 | Dec 2025 | Solar |
| University Solar, LLC | AES Distributed Energy | West Greenwich, RI | ISO New England (ISNE) | 27.5 GWh | Nov 2019 | May 2026 | Solar |
| USS Webster Solar CSG | Standard Solar | Webster, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Apr 2019 | Dec 2025 | Solar |
| USS Centerfield Solar CSG | Standard Solar | Webster, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Oct 2019 | Dec 2025 | Solar |
| USS Water Town Solar LLC CSG | United States Solar Corporation | Waterville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Oct 2021 | Dec 2025 | Solar |
| USS Water City Solar LLC CSG | United States Solar Corporation | Waterville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2021 | Dec 2025 | Solar |
| US GSA Heating and Transmission | US GSA Heating and Transmission | Washington, DC | PJM Interconnection, LLC (PJM) | 32.5 GWh | Jun 2004 | May 2026 | Natural Gas |
| USS King 2 CSG | Standard Solar | Waconia, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.3 GWh | Jul 2019 | Dec 2025 | Solar |
| USS DVL Solar CSG | Standard Solar | Waconia, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jul 2019 | Dec 2025 | Solar |
| Upton Community Solar | Upton Solar, LLC | Upton, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2017 | Dec 2025 | Solar |
| Upper Marlboro 1 CSG | Nautilus Solar Solutions | Upper Marlboro, MD | PJM Interconnection, LLC (PJM) | 2.3 GWh | Nov 2019 | Dec 2025 | Solar |
| Upper Kalskag | Alaska Village Elec Coop, Inc | Upper Kalskag, AK | 1.5 GWh | Nov 2004 | Dec 2025 | Distillate Fuel Oil | |
| University Park South | University Park Energy LLC | University Park, IL | PJM Interconnection, LLC (PJM) | 151.4 GWh | May 2001 | Dec 2025 | Natural Gas |
| USS University Park Solar | United States Solar Corporation | University Park, IL | Midcontinent Independent System Operator, Inc. (MISO) | 2.7 GWh | Apr 2025 | Dec 2025 | Solar |
| University Park North | LSP University Park LLC | University Park, IL | PJM Interconnection, LLC (PJM) | 123.7 GWh | May 2002 | Dec 2024 | Natural Gas |
| Unity Solar | Madison Energy Holdings LLC | Unity, ME | ISO New England (ISNE) | 6.7 GWh | Nov 2021 | Dec 2025 | Solar |
| Unionville City of | City of Unionville - (MO) | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 1.0 MWh | Dec 1934 | Dec 2025 | Distillate Fuel Oil |
| Unionville | Associated Electric Coop, Inc | Unionville, MO | Associated Electric Cooperative, Inc. (AECI) | 34.0 MWh | May 1976 | Dec 2025 | Distillate Fuel Oil |
| Union Solar LLC | Dimension Energy LLC | Union, NJ | PJM Interconnection, LLC (PJM) | 81.0 MWh | Oct 2025 | Dec 2025 | Solar |
| Union Springs 40 | Novis Renewables, LLC | Union Spring, NY | New York Independent System Operator (NYIS) | 8.5 GWh | Jan 2022 | Dec 2025 | Solar |
| Union Springs 963 | Novis Renewables, LLC | Union Spring, NY | New York Independent System Operator (NYIS) | 8.6 GWh | Dec 2021 | Dec 2025 | Solar |
| Union Bridge Solar | Citizens Enterprises Corporation | Union Bridge, MD | PJM Interconnection, LLC (PJM) | 11.8 GWh | Mar 2022 | Dec 2025 | Solar |
| Unalakleet | Unalakleet Valley Elec Coop | Unalakleet, AK | 3.7 GWh | Apr 2010 | Dec 2024 | Distillate Fuel Oil | |
| Ubly | Thumb Electric Coop of Mich | Ubly, MI | Midcontinent Independent System Operator, Inc. (MISO) | 11.8 MWh | May 1938 | Dec 2024 | Distillate Fuel Oil : 63.3% Natural Gas : 36.7% |
| UASTP I | Tucson Electric Power Co | Tucson, AZ | Tucson Electric Power (TEPC) | 2.1 GWh | Nov 2010 | Dec 2025 | 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 |
| USNY - Geddes | Abundant Solar Power Inc. | Town of Geddes, NY | New York Independent System Operator (NYIS) | 1.4 GWh | Jun 2025 | Nov 2025 | Solar |
| Upson County GA S1 LLC | SolRiver Capital LLC | Thomaston, GA | Southern Company Services, Inc. - Trans (SOCO) | 5.4 GWh | Mar 2023 | Dec 2025 | Solar |
| Upson Rocky Creek Solar Plant | Axium US Solar Holdings LLC | Thomaston, GA | Southern Company Services, Inc. - Trans (SOCO) | 1.1 GWh | May 2012 | Dec 2025 | Solar |
| USS Sunrise Solar LLC CSG | Standard Solar | Taylors Falls, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.3 GWh | May 2020 | Dec 2025 | Solar |
| USS Sycamore Solar (CSG) | Standard Solar | Sycamore, IL | PJM Interconnection, LLC (PJM) | 4.2 GWh | Apr 2022 | Dec 2025 | Solar |
| UW Kegonsa Customer Hosted Solar | Wisconsin Power & Light Co | Stoughton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Apr 2025 | Dec 2025 | Solar |
| UCONN Cogen Facility | University of Connecticut | Storrs, CT | ISO New England (ISNE) | 112.1 GWh | Feb 2006 | May 2026 | Natural Gas : 95.2% Distillate Fuel Oil : 4.8% |
| University of the Pacific | The Greater Light USA LLC | Stockton, CA | California Independent System Operator (CISO) | 6.5 GWh | Apr 2022 | Dec 2024 | Solar |
| USS Verbena Solar LLC | United States Solar Corporation | Stewart, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Sep 2022 | Sep 2025 | Solar |
| University Park Solar | SS PA II PSU LLC | State College, PA | PJM Interconnection, LLC (PJM) | 2.3 GWh | Nov 2018 | Dec 2024 | Solar |
| USS Solar Brick | Standard Solar | Standard City, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.5 GWh | May 2021 | Dec 2025 | Solar |
| USS Rockpoint Solar CSG | United States Solar Corporation | Stacy, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Nov 2018 | Dec 2025 | Solar |
| USS Good Solar CSG | United States Solar Corporation | Stacy, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Nov 2018 | Dec 2025 | Solar |
| USS Haven Solar LLC CSG | Standard Solar | St. Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Oct 2019 | Dec 2025 | Solar |
| USS White Cloud LLC CSG | Standard Solar | St. Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Oct 2019 | Dec 2025 | Solar |
| Upper Falls | Avista Corp | Spokane, WA | Avista Corporation (AVA) | 42.0 GWh | Mar 1922 | Dec 2025 | Water |
| Upriver Dam Hydro Plant | City of Spokane - (WA) | Spokane, WA | Avista Corporation (AVA) | 39.9 GWh | Dec 1935 | Dec 2025 | Water |
| Upland Prairie | Interstate Power and Light Co | Spencer, IA | Midcontinent Independent System Operator, Inc. (MISO) | 1.1 TWh | Feb 2019 | May 2026 | Wind |
| USS Slayton Solar LLC (CSG) | United States Solar Corporation | Slayton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.2 GWh | Jul 2024 | Dec 2025 | Solar |
| USS Water Fowl Solar LLC CSG | United States Solar Corporation | Silver Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 807.0 MWh | Aug 2022 | Dec 2025 | Solar |
| University of Washington Power Plant | University of Washington | Seattle, WA | Seattle City Light (SCL) | 129.4 MWh | Dec 1968 | May 2026 | Distillate Fuel Oil |
| Union Carbide Seadrift Cogen | Union Carbide Corp-Seadrift | Seadrift, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 563.3 GWh | Dec 1963 | Dec 2025 | Natural Gas : 94.2% Other Gas : 5.8% |
| USS Solar Sources LLC CSG | Standard Solar | Scandia, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Sep 2020 | Dec 2025 | Solar |
| USS Kasch Solar CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Sep 2018 | Dec 2025 | Solar |
| USS Solar Rapids CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.5 GWh | Dec 2018 | Dec 2025 | Solar |
| USS JJ Solar CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Dec 2018 | Dec 2025 | Solar |
| USS Golden Spike Solar LLC CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 379.0 MWh | Sep 2025 | Dec 2025 | Solar |
| USS Mayhew Solar LLC CSG | Standard Solar | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | May 2020 | Dec 2025 | Solar |
| USS Reindeer Solar LLC CSG | United States Solar Corporation | Sauk Rapids, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Nov 2020 | Dec 2025 | Solar |
| USS Brockway Solar CSG | United States Solar Corporation | Sartell, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Dec 2018 | Dec 2025 | Solar |
| University of California Santa Cruz | University of California Santa Cruz | Santa Cruz, CA | California Independent System Operator (CISO) | 33.5 GWh | Aug 2013 | Dec 2025 | Natural Gas : 91.4% Solar : 8.6% |
| 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 San Diego | Bloom Energy 2009 PPA | San Diego, CA | California Independent System Operator (CISO) | 7.7 GWh | Nov 2016 | Dec 2025 | Natural Gas |
| US GSA - Sacramento | Tesla Inc. | Sacramento, CA | Balancing Authority of Northern California (BANC) | 1.5 GWh | Feb 2018 | Dec 2025 | Solar |
| Upper Blackstone (MA) Treasure Valley | Nexamp Treasure Valley Solar, LLC | Rutland, MA | ISO New England (ISNE) | 6.2 GWh | Jun 2014 | Dec 2025 | Solar |
| Upper Sterling | City of Rock Falls - (IL) | Rock Falls, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.8 GWh | May 1988 | May 2025 | Water |
| University of Rochester | University of Rochester | Rochester, NY | New York Independent System Operator (NYIS) | 26.8 GWh | Sep 2005 | Dec 2025 | Natural Gas |
| Unbridled Solar | Geronimo Power | Robards, KY | Midcontinent Independent System Operator, Inc. (MISO) | 315.8 GWh | Feb 2025 | May 2026 | Solar |
| UC Riverside Lots 30 & 32 | MN8 Energy LLC | Riverside, CA | California Independent System Operator (CISO) | 6.8 GWh | Nov 2017 | Dec 2025 | Solar |
| Union County Resource Recovery | Reworld Union (NJ), LLC | Rahway, NJ | PJM Interconnection, LLC (PJM) | 288.7 GWh | Jan 1994 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| USS Giveback Solar LLC (CSG) | United States Solar Corporation | Pueblo, CO | Public Service Company of Colorado (PSCO) | 4.2 GWh | Nov 2023 | Dec 2025 | Solar |
| UMES (MD) - Princess Anne | NVT LICENSES, LLC | Princess Anne, MD | PJM Interconnection, LLC (PJM) | 2.6 GWh | Jan 2011 | Dec 2025 | Solar |
| Underhill | Underhill Solar LLC | Poughkeepsie, NY | New York Independent System Operator (NYIS) | 3.3 GWh | Feb 2019 | Dec 2025 | Solar |
| UMMS at Pocomoke | Luminace Solar Maryland II, LLC | Pocomoke City, MD | PJM Interconnection, LLC (PJM) | 4.3 GWh | Jan 2013 | Dec 2025 | Solar |
| Upland | Greenbacker Renewable Energy Corporation | Plympton, MA | ISO New England (ISNE) | 3.3 GWh | May 2025 | Dec 2025 | Solar |
| Uilk Wind LLC | RENEW Energy Inc | Pipestone, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.6 GWh | Dec 2009 | Dec 2025 | Wind |
| USS Greenhouse Solar LLC CSG | Standard Solar | Pine Island, MN | Midcontinent Independent System Operator, Inc. (MISO) | 927.0 MWh | Nov 2019 | Dec 2025 | Solar |
| Uniqlo Phase 1 Solar Farm | 53 SP Solar Trust | Phillipsburg, NJ | PJM Interconnection, LLC (PJM) | 3.5 GWh | May 2022 | Dec 2025 | Solar |
| Uniqlo NJ CS Ph 2 CSG | Solar DG NJ Building 7, LLC | Philipsburg, NJ | PJM Interconnection, LLC (PJM) | 39.0 MWh | Nov 2025 | Dec 2025 | Solar |
| US Foods Solar | CD US Solar MT1 LLC | Perth Amboy, NJ | PJM Interconnection, LLC (PJM) | 175.0 MWh | Jul 2012 | Dec 2025 | Solar |
| USS Milkweed Solar LLC CSG | Standard Solar | Paynesville, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | May 2020 | Dec 2025 | Solar |
| Utah Red Hills Renewable Energy Park | MN8 Energy LLC | Parowan, UT | PacifiCorp East (PACE) | 207.9 GWh | Nov 2015 | Dec 2025 | Solar |
| Upper Pacolet Hydro | Lockhart Power Co | Pacolet, SC | Duke Energy Carolinas (DUK) | 4.8 GWh | Jan 2013 | Dec 2025 | Water |
| USS Bush Solar LLC CSG | United States Solar Corporation | Owatonna, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2020 | Dec 2025 | Solar |
| University of Arizona - Biosphere 2 | University of Arizona - Biosphere 2 | Oracle, AZ | Western Area Power Administration - Desert Southwest Region (WALC) | 61.0 MWh | Oct 1990 | Dec 2025 | Natural Gas : 68.4% Distillate Fuel Oil : 31.6% |
| US Gypsum Oakfield | U S Gypsum Co | Oakfield, NY | New York Independent System Operator (NYIS) | 17.2 GWh | Mar 1986 | Dec 2025 | Natural Gas |
| University of Notre Dame | University of Notre Dame | Notre Dame, IN | PJM Interconnection, LLC (PJM) | 85.4 GWh | Jun 1952 | May 2026 | Natural Gas : 98.7% Distillate Fuel Oil : 1.3% |
| Unionville Hydro Project 2499 NY | Erie Boulevard Hydropower LP | Norwood, NY | New York Independent System Operator (NYIS) | 11.2 GWh | Jun 1984 | Dec 2025 | Water |
| USS Hubers Solar LLC CSG | United States Solar Corporation | Northfield, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Dec 2020 | Dec 2025 | Solar |
| Union Garden | Excelsior Energy Capital | Northfield, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Feb 2021 | Dec 2025 | Solar |
| USS Solar Dawn CSG | United States Solar Corporation | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2018 | Nov 2025 | Solar |
| USS Dubhe Solar CSG | United States Solar Corporation | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2018 | Dec 2025 | Solar |
| USS Kost Trail Solar CSG | Standard Solar | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | May 2019 | Dec 2025 | Solar |
| USS Norelius Solar CSG | United States Solar Corporation | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Dec 2018 | Dec 2025 | Solar |
| USS Nillie Corn Solar CSG | United States Solar Corporation | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.9 GWh | Nov 2018 | Dec 2025 | Solar |
| USS Flower Solar LLC CSG | Standard Solar | Nicollet, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Aug 2020 | Dec 2025 | Solar |
| Upper Newton Falls | Erie Boulevard Hydropower LP | Newton Falls, NY | New York Independent System Operator (NYIS) | 5.8 GWh | Dec 1926 | Dec 2025 | Water |
| UI RCP New Haven Fuel Cell | United Illuminating Co | New Haven, CT | ISO New England (ISNE) | 20.5 GWh | Jul 2015 | May 2026 | Natural Gas |
| Uintah | Moon Lake Electric Assn Inc | Neola, UT | Western Area Power Administration - Rocky Mountain Region (WACM) | 4.5 GWh | Jun 1920 | Dec 2025 | Water |
| Upstream Wind Energy LLC | Invenergy Services LLC | Neligh, NE | Southwest Power Pool (SWPP) | 709.1 GWh | Nov 2018 | May 2026 | Wind |
| UADA | Entegrity Solar UA AG, LLC | Nashville, AR | Southwest Power Pool (SWPP) | 5.9 GWh | Apr 2023 | Dec 2024 | Solar |
| Underwood PV2 | Strata Manager, LLC | Murfreesboro, NC | PJM Interconnection, LLC (PJM) | 29.1 GWh | Sep 2020 | Dec 2025 | Solar |
Summary of Power Plants By State
Figures are based on May 2026 generation numbers.| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Alabama | # 8 | 77 | 11,823.92 GWh |
| Alaska | # 48 | 140 | 513.29 GWh |
| Arizona | # 14 | 196 | 9,091.99 GWh |
| Arkansas | # 25 | 117 | 4,873.33 GWh |
| California | # 4 | 1,740 | 15,360.54 GWh |
| Colorado | # 31 | 308 | 4,156.36 GWh |
| Connecticut | # 35 | 173 | 3,391.33 GWh |
| Delaware | # 49 | 35 | 236.45 GWh |
| District of Columbia | # 51 | 17 | 14.46 GWh |
| Florida | # 2 | 342 | 25,093.89 GWh |
| Georgia | # 6 | 250 | 12,138.02 GWh |
| Hawaii | # 46 | 70 | 762.50 GWh |
| Idaho | # 41 | 151 | 1,963.84 GWh |
| Illinois | # 5 | 494 | 14,816.74 GWh |
| Indiana | # 15 | 222 | 7,662.28 GWh |
| Iowa | # 21 | 297 | 5,720.38 GWh |
| Kansas | # 24 | 188 | 5,118.39 GWh |
| Kentucky | # 23 | 61 | 5,471.28 GWh |
| Louisiana | # 13 | 90 | 9,131.60 GWh |
| Maine | # 44 | 242 | 1,130.78 GWh |
| Maryland | # 37 | 228 | 3,103.37 GWh |
| Massachusetts | # 45 | 666 | 1,073.93 GWh |
| Michigan | # 11 | 276 | 9,774.25 GWh |
| Minnesota | # 28 | 790 | 4,567.82 GWh |
| Mississippi | # 20 | 60 | 6,404.61 GWh |
| Missouri | # 22 | 129 | 5,701.36 GWh |
| State | Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Montana | # 40 | 71 | 2,053.07 GWh |
| Nebraska | # 36 | 126 | 3,193.89 GWh |
| Nevada | # 33 | 117 | 3,848.29 GWh |
| New Hampshire | # 43 | 57 | 1,198.65 GWh |
| New Jersey | # 30 | 398 | 4,274.91 GWh |
| New Mexico | # 29 | 158 | 4,513.39 GWh |
| New York | # 10 | 1,064 | 10,643.78 GWh |
| North Carolina | # 9 | 913 | 11,481.42 GWh |
| North Dakota | # 34 | 59 | 3,601.34 GWh |
| Ohio | # 7 | 211 | 11,886.21 GWh |
| Oklahoma | # 17 | 144 | 7,547.66 GWh |
| Oregon | # 27 | 281 | 4,575.23 GWh |
| Pennsylvania | # 3 | 258 | 18,234.28 GWh |
| Rhode Island | # 47 | 107 | 580.94 GWh |
| South Carolina | # 16 | 209 | 7,632.32 GWh |
| South Dakota | # 42 | 53 | 1,802.78 GWh |
| Tennessee | # 19 | 99 | 6,454.94 GWh |
| Texas | # 1 | 1,019 | 50,690.02 GWh |
| Utah | # 39 | 128 | 2,809.26 GWh |
| Vermont | # 50 | 118 | 186.37 GWh |
| Virginia | # 18 | 250 | 7,445.56 GWh |
| Washington | # 12 | 134 | 9,231.20 GWh |
| West Virginia | # 32 | 41 | 4,142.41 GWh |
| Wisconsin | # 26 | 266 | 4,582.07 GWh |
| Wyoming | # 38 | 69 | 2,983.81 GWh |