Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Madison Windpower LLC | Madison Windpower LLC | Madison, NY | New York Independent System Operator (NYIS) | 929.0 MWh | Sep 2000 | Aug 2025 | Wind |
| Diesel Generators | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 871.0 MWh | May 2001 | Aug 2025 | Distillate Fuel Oil |
| Middleton Airport Solar | Madison Gas & Electric Co | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.2 GWh | Jun 2020 | Dec 2024 | Solar |
| West Campus Cogeneration Facility | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 282.0 GWh | Mar 2005 | Dec 2024 | Natural Gas : 99.8% |
| West Marinette 34 | Madison Gas & Electric Co | Peshtigo, WI | Midcontinent Independent System Operator, Inc. (MISO) | 43.6 GWh | May 2000 | Dec 2024 | Natural Gas |
| Nine Springs | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 82.0 MWh | Nov 1964 | Dec 2024 | Natural Gas |
| Wind Turbine | Madison Gas & Electric Co | Casco, WI | Midcontinent Independent System Operator, Inc. (MISO) | 13.4 GWh | May 1999 | Dec 2024 | Wind |
| Dane County Airport Solar | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.7 GWh | Nov 2020 | Dec 2024 | Solar |
| Tyto Solar | Madison Gas & Electric Co | Fitchburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.8 GWh | Jan 2024 | Dec 2024 | Solar |
| Hermsdorf Solar | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.8 GWh | Feb 2022 | Dec 2024 | Solar |
| O'Brien Solar Fields | Madison Gas & Electric Co | Fitchburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 38.5 GWh | Apr 2021 | Dec 2024 | Solar |
| Top of Iowa Windfarm III | Madison Gas & Electric Co | Kensett, IA | Midcontinent Independent System Operator, Inc. (MISO) | 43.8 GWh | Jan 2008 | Dec 2024 | Wind |
| Blount Street | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 48.8 GWh | May 1957 | Dec 2024 | Natural Gas |
| Fitchburg | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 14.0 MWh | Apr 1973 | Dec 2024 | Natural Gas |
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 MWh | Nov 1967 | Dec 2024 | Natural Gas |
| Saratoga Wind Farm | Madison Gas & Electric Co | Lime Springs, IA | Midcontinent Independent System Operator, Inc. (MISO) | 276.2 GWh | Jan 2019 | Aug 2025 | Wind |
| Madison Fields Solar Project, LLC | Madison Fields Solar Project, LLC | Irwin, OH | PJM Interconnection, LLC (PJM) | 375.6 GWh | Dec 2023 | Aug 2025 | Solar |
| Barefoot Solar | Madison Energy Investments LLC | Fairfiled, ME | ISO New England (ISNE) | 6.7 GWh | Nov 2022 | Dec 2024 | Solar |
| Hammonton-High School Solar | Madison Energy Investments LLC | Atlantic, NJ | PJM Interconnection, LLC (PJM) | 2.2 GWh | Nov 2022 | Dec 2024 | Solar |
| Tift Fletcher | Madison Energy Investments LLC | Tifton, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.6 GWh | Sep 2023 | Dec 2024 | Solar |
| 1 Commercial | Madison Energy Investments LLC | Sharon, MA | ISO New England (ISNE) | 770.0 MWh | Aug 2023 | Dec 2024 | Solar |
| Tom's River (Lowes) | Madison Energy Investments LLC | Toms River, NJ | PJM Interconnection, LLC (PJM) | 1.3 GWh | Dec 2022 | Dec 2024 | Solar |
| Minster 3 | Madison Energy Investments LLC | Minster, OH | PJM Interconnection, LLC (PJM) | 1.7 GWh | Nov 2022 | Dec 2024 | Solar |
| Tift Bowen | Madison Energy Investments LLC | Tifton, GA | Southern Company Services, Inc. - Trans (SOCO) | 4.6 GWh | Sep 2023 | Dec 2024 | Solar |
| 118 Echo | Madison Energy Investments LLC | Mashpee, MA | ISO New England (ISNE) | 4.0 MWh | Jun 2023 | Dec 2024 | Solar |
| North Stafford HS | Madison Energy Investments LLC | Stafford, VA | PJM Interconnection, LLC (PJM) | 412.0 MWh | Aug 2023 | Dec 2024 | Solar |
| Waterboro | Madison Energy Investments LLC | East Waterboro, ME | ISO New England (ISNE) | 3.3 GWh | Jun 2023 | Dec 2024 | Solar |
| Wheeler Ridge 2 | Madison Energy Investments LLC | Arvin, CA | California Independent System Operator (CISO) | 913.0 MWh | Oct 2023 | Dec 2024 | Solar |
| North Kern 3 | Madison Energy Investments LLC | Bakersfield, CA | California Independent System Operator (CISO) | 6.0 MWh | Nov 2023 | Dec 2024 | Solar |
| 3100 Valleyview Drive | Madison Energy Investments LLC | Columbus, OH | PJM Interconnection, LLC (PJM) | 548.0 MWh | Jul 2023 | Dec 2024 | Solar |
| Mineral Gap | Madison Energy Investments LLC | Wise, VA | Louisville Gas and Electric Company and Kentucky Utilities Company (LGEE) | 4.9 GWh | Jan 2023 | Dec 2024 | Solar |
| Farmington | Madison Energy Investments LLC | Farmington, ME | ISO New England (ISNE) | 5.5 GWh | Nov 2023 | Dec 2024 | Solar |
| Hamilton | Madison Energy Investments LLC | Hamilton, NJ | PJM Interconnection, LLC (PJM) | 1.4 GWh | Mar 2023 | Dec 2024 | Solar |
| Howell (Lowes) | Madison Energy Investments LLC | Howell, NJ | PJM Interconnection, LLC (PJM) | 1.0 GWh | Feb 2023 | Dec 2024 | Solar |
| Sycamore | Madison Energy Investments LLC | Sycamore, OH | PJM Interconnection, LLC (PJM) | 1.9 GWh | Nov 2023 | Dec 2024 | Solar |
| Boyd Soccerplex | Madison Energy Investments LLC | Boyds, MD | PJM Interconnection, LLC (PJM) | 354.0 MWh | Mar 2023 | Dec 2024 | Solar |
| 700 Binnewater | Madison Energy Investments LLC | Rosendale, NY | ISO New England (ISNE) | 1.6 GWh | Aug 2022 | Dec 2024 | Solar |
| 5 Berry | Madison Energy Investments LLC | Plainsville, MA | ISO New England (ISNE) | 3.9 GWh | Aug 2023 | Dec 2024 | Solar |
| North Kern 2 | Madison Energy Investments LLC | City of Shafter, CA | California Independent System Operator (CISO) | 2.4 GWh | Jun 2024 | Dec 2024 | Solar |
| 401 South | Madison Energy Investments LLC | Dalton, MA | Southern Company Services, Inc. - Trans (SOCO) | 403.0 MWh | Nov 2023 | Dec 2024 | Solar |
| North Kern 1 | Madison Energy Investments LLC | Shafter, CA | California Independent System Operator (CISO) | 3.9 GWh | May 2023 | Dec 2024 | Solar |
| Fairview Farms | Madison Energy Investments LLC | Bel Air, MD | PJM Interconnection, LLC (PJM) | 11.8 GWh | Nov 2024 | Aug 2025 | Solar |
| Lowndes Cowart | Madison Energy Investments LLC | Valdosta, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.8 GWh | Sep 2023 | Dec 2024 | Solar |
| Bibb Williams | Madison Energy Holdings LLC | Macob, GA | Southern Company Services, Inc. - Trans (SOCO) | 5.5 GWh | Oct 2023 | Dec 2024 | Solar |
| Blue Hen Solar | Madison Energy Holdings LLC | Dartley, DE | PJM Interconnection, LLC (PJM) | 2.6 GWh | Apr 2022 | Dec 2024 | Solar |
| Salvation Army Solar | Madison Energy Holdings LLC | Camden, NJ | PJM Interconnection, LLC (PJM) | 1.6 GWh | Mar 2022 | Aug 2024 | Solar |
| KSU Trumbull | Madison Energy Holdings LLC | Warren, OH | PJM Interconnection, LLC (PJM) | 1.6 GWh | May 2021 | Dec 2024 | Solar |
| Bryan Floyd | Madison Energy Holdings LLC | Pembroke, GA | Southern Company Services, Inc. - Trans (SOCO) | 4.5 GWh | Aug 2023 | Dec 2024 | Solar |
| Johnson CSG 2 | Madison Energy Holdings LLC | Lindstrom, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Feb 2023 | Dec 2024 | Solar |
| Bartow Davidson | Madison Energy Holdings LLC | Cartersville, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.0 GWh | Nov 2023 | Dec 2024 | Solar |
| 3Colton | Madison Energy Holdings LLC | Millbury, MA | ISO New England (ISNE) | 5.1 GWh | Jun 2023 | Dec 2024 | Solar |
| Douglas Todd Community Solar One LLC CSG | Madison Energy Holdings LLC | Osakis, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Cuyahoga County Landfill | Madison Energy Holdings LLC | Brooklyn, OH | PJM Interconnection, LLC (PJM) | 4.3 GWh | Aug 2018 | Dec 2024 | Solar |
| First Baptist Church of Glenarden | Madison Energy Holdings LLC | Upper Marlboro, MD | PJM Interconnection, LLC (PJM) | 3.0 GWh | Mar 2018 | Dec 2024 | Solar |
| Sherburne Community Solar One LLC CSG | Madison Energy Holdings LLC | Saint Cloud, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Nov 2019 | Dec 2024 | Solar |
| Stearns Community Solar One LLC CSG | Madison Energy Holdings LLC | Albany, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Meeker Community Solar One LLC CSG | Madison Energy Holdings LLC | Dassel, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Dakota Community Solar One LLC CSG | Madison Energy Holdings LLC | Farmington, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| McLeod Community Solar One LLC CSG | Madison Energy Holdings LLC | Stewart, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Nicollet Community Solar One LLC | Madison Energy Holdings LLC | Courtland, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Jun 2020 | Dec 2024 | Solar |
| HMW Minster PV I | Madison Energy Holdings LLC | Village of Minster, OH | PJM Interconnection, LLC (PJM) | 8.3 GWh | Nov 2015 | Dec 2024 | Solar |
| Medin CSG | Madison Energy Holdings LLC | Center City, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Nov 2021 | Dec 2024 | Solar |
| Lineage MS | Madison Energy Holdings LLC | Richland, MS | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2021 | May 2024 | Solar |
| Wapakoneta-Pratt | Madison Energy Holdings LLC | Wapakoneta, OH | PJM Interconnection, LLC (PJM) | 23.7 GWh | Oct 2021 | Dec 2024 | Solar |
| Hartland Solar | Madison Energy Holdings LLC | Hartland, ME | ISO New England (ISNE) | 6.9 GWh | Nov 2021 | Dec 2024 | Solar |
| Unity Solar | Madison Energy Holdings LLC | Unity, ME | ISO New England (ISNE) | 7.7 GWh | Nov 2021 | Dec 2024 | Solar |
| Norton | Madison Energy Holdings LLC | Norton, MA | ISO New England (ISNE) | 1.5 GWh | Feb 2023 | Dec 2024 | Solar |
| Raboth - Marion Drive | Madison Energy Holdings LLC | Kingston, MA | ISO New England (ISNE) | 5.1 GWh | Feb 2021 | Dec 2024 | Solar |
| Johnson CSG 1 | Madison Energy Holdings LLC | Lindstrom, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Nov 2021 | Dec 2024 | Solar |
| Cornillie Solar CSG | Madison Energy Holdings LLC | North Branch, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Nov 2021 | Dec 2024 | Solar |
| ESIL-PFCHICAGO 2, LLC | Madison Energy Holdings LLC | Chicago, IL | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Oct 2020 | Dec 2024 | Solar |
| ESIL-PFCHICAGO 3, LLC | Madison Energy Holdings LLC | Chicago, IL | Midcontinent Independent System Operator, Inc. (MISO) | 2.4 GWh | Jul 2020 | Dec 2024 | Solar |
| Pinesburg Solar LLC | Madison Energy Holdings LLC | Williamsport, MD | PJM Interconnection, LLC (PJM) | 7.5 GWh | Apr 2020 | Dec 2024 | Solar |
| Winona Community Solar One LLC | Madison Energy Holdings LLC | La Crescent, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | May 2020 | Dec 2024 | Solar |
| Goodhue Community Solar Two LLC | Madison Energy Holdings LLC | Zumbrota, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Mar 2020 | Dec 2024 | Solar |
| Houston/Winona Community Solar One LLC | Madison Energy Holdings LLC | La Crescent, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | May 2020 | Dec 2024 | Solar |
| Timonium Fairgrounds | Madison Energy Holdings LLC | Timonium, MD | PJM Interconnection, LLC (PJM) | 2.8 GWh | Sep 2020 | Dec 2024 | Solar |
| Goodhue Community Solar One LLC CSG | Madison Energy Holdings LLC | Zumbrota, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | Jan 2020 | Dec 2024 | Solar |
| ESCA-LL-COLTON, LLC | Madison Energy Holdings LLC | Colton, CA | California Independent System Operator (CISO) | 4.0 GWh | Aug 2021 | Dec 2024 | Solar |
| T Luhman CSG | Madison Energy Holdings LLC | Zumbrota, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Jul 2021 | Dec 2024 | Solar |
| Huneke CSG 2, LLC | Madison Energy Holdings LLC | Zumbrota, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Oct 2020 | Dec 2024 | Solar |
| Huneke CSG 1, LLC | Madison Energy Holdings LLC | Zumbrota, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.6 GWh | Sep 2020 | Dec 2024 | Solar |
| Betcher CSG 1, LLC | Madison Energy Holdings LLC | Goodhue, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Oct 2020 | Dec 2024 | Solar |
| Hinterland CSG, LLC | Madison Energy Holdings LLC | Clearlake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Oct 2020 | Dec 2024 | Solar |
| RJC CSG, LLC | Madison Energy Holdings LLC | Owatonna,, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.8 GWh | May 2021 | Dec 2024 | Solar |
| IOS II-LAX9 | Madison Energy Holdings LLC | Fontana, CA | California Independent System Operator (CISO) | 7.2 GWh | Jan 2020 | Dec 2024 | Solar |
| Goodhue Community Solar Three LLC CSG | Madison Energy Holdings LLC | Zumbrota, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Jan 2020 | Dec 2024 | Solar |
| Stevens Community Solar LLC | Madison Energy Holdings LLC | Foley, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Sep 2020 | Dec 2024 | Solar |
| Sobania Community Solar LLC | Madison Energy Holdings LLC | Clear Lake, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.0 GWh | Aug 2020 | Dec 2024 | Solar |
| Valdosta Prison | Madison Energy Holdings LLC | Valdosta, GA | Southern Company Services, Inc. - Trans (SOCO) | 1.7 GWh | Jul 2017 | Dec 2024 | Solar |
| City of Lexington | Madison Energy Holdings LLC | Lexington, NE | Southwest Power Pool (SWPP) | 6.5 GWh | Apr 2017 | Dec 2024 | Solar |
| IOS - ERW9 | Madison Energy Holdings LLC | Carteret, NJ | PJM Interconnection, LLC (PJM) | 6.9 GWh | Jul 2017 | Dec 2024 | Solar |
| IGS Solar I - BWI2 | Madison Energy Holdings LLC | Baltimore, MD | PJM Interconnection, LLC (PJM) | 2.5 GWh | Jan 2017 | Dec 2024 | Solar |
| IOS - MEW Phase 1 | Madison Energy Holdings LLC | Madison, ME | ISO New England (ISNE) | 1.0 GWh | Dec 2016 | Dec 2024 | Solar |
| Denver Braswell PV | Madison Energy Holdings LLC | Moultrie, GA | Southern Company Services, Inc. - Trans (SOCO) | 614.0 MWh | Jul 2017 | Dec 2024 | Solar |
| Site 980 65 | Madera-Chowchilla Power Auth | Madera, CA | California Independent System Operator (CISO) | 4.9 GWh | Jan 1985 | Jul 2024 | Water |
| Diamond H Dairy Power | Madera DP 2, LLC | Chowchilla, CA | California Independent System Operator (CISO) | 11.9 GWh | Sep 2021 | Dec 2024 | Other Biomass Gas |
| Macys Goodyear | Macys Corporate Services, Inc | Goodyear, AZ | Arizona Public Service Company (AZPS) | 3.1 GWh | Nov 2010 | Dec 2024 | Solar |
| Macbeth Solar | Macbeth Solar, LLC | Montague, MI | Midcontinent Independent System Operator, Inc. (MISO) | 38.9 GWh | Apr 2022 | Dec 2024 | Solar |
| Mauna Loa Macadamia Nut | Macadamia Nut Road Solar Project 2019 | Keaau, HI | (HECO) | 1.4 GWh | Nov 2021 | Dec 2024 | Solar |
Summary of Power Plants By State
Figures are based on August 2025 generation numbers.| State | Rank | Active Plants | Aug 2025 Generation |
|---|---|---|---|
| Alabama | # 9 | 76 | 12,395.40 GWh |
| Alaska | # 48 | 147 | 596.38 GWh |
| Arizona | # 8 | 183 | 13,253.37 GWh |
| Arkansas | # 22 | 117 | 7,005.71 GWh |
| California | # 4 | 1,766 | 22,096.16 GWh |
| Colorado | # 30 | 303 | 5,430.16 GWh |
| Connecticut | # 33 | 168 | 4,128.16 GWh |
| Delaware | # 49 | 33 | 484.63 GWh |
| District of Columbia | # 51 | 16 | 18.64 GWh |
| Florida | # 2 | 322 | 27,311.64 GWh |
| Georgia | # 6 | 266 | 13,949.89 GWh |
| Hawaii | # 47 | 73 | 836.01 GWh |
| Idaho | # 42 | 148 | 1,815.53 GWh |
| Illinois | # 5 | 385 | 16,890.03 GWh |
| Indiana | # 15 | 212 | 9,505.71 GWh |
| Iowa | # 28 | 295 | 5,533.29 GWh |
| Kansas | # 26 | 189 | 5,907.91 GWh |
| Kentucky | # 23 | 58 | 6,905.39 GWh |
| Louisiana | # 14 | 87 | 9,976.47 GWh |
| Maine | # 45 | 217 | 1,193.54 GWh |
| Maryland | # 39 | 204 | 3,054.43 GWh |
| Massachusetts | # 41 | 652 | 2,249.14 GWh |
| Michigan | # 12 | 279 | 11,546.33 GWh |
| Minnesota | # 27 | 768 | 5,598.51 GWh |
| Mississippi | # 19 | 58 | 8,052.18 GWh |
| Missouri | # 21 | 128 | 7,016.22 GWh |
| State | Rank | Active Plants | Aug 2025 Generation |
|---|---|---|---|
| Montana | # 40 | 72 | 2,504.48 GWh |
| Nebraska | # 35 | 132 | 3,820.75 GWh |
| Nevada | # 32 | 114 | 4,717.11 GWh |
| New Hampshire | # 43 | 60 | 1,704.04 GWh |
| New Jersey | # 25 | 399 | 5,993.29 GWh |
| New Mexico | # 36 | 144 | 3,535.03 GWh |
| New York | # 11 | 966 | 12,050.57 GWh |
| North Carolina | # 10 | 917 | 12,257.94 GWh |
| North Dakota | # 38 | 60 | 3,302.49 GWh |
| Ohio | # 7 | 201 | 13,774.78 GWh |
| Oklahoma | # 17 | 143 | 9,005.55 GWh |
| Oregon | # 29 | 282 | 5,502.91 GWh |
| Pennsylvania | # 3 | 260 | 22,725.21 GWh |
| Rhode Island | # 46 | 100 | 1,044.68 GWh |
| South Carolina | # 16 | 207 | 9,221.88 GWh |
| South Dakota | # 44 | 52 | 1,697.92 GWh |
| Tennessee | # 20 | 89 | 7,467.46 GWh |
| Texas | # 1 | 937 | 58,074.24 GWh |
| Utah | # 37 | 126 | 3,436.80 GWh |
| Vermont | # 50 | 120 | 183.89 GWh |
| Virginia | # 13 | 241 | 10,566.72 GWh |
| Washington | # 18 | 138 | 8,804.04 GWh |
| West Virginia | # 31 | 39 | 4,950.74 GWh |
| Wisconsin | # 24 | 251 | 6,697.49 GWh |
| Wyoming | # 34 | 73 | 3,968.05 GWh |