Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Marshall Wind 3 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.0 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 4 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 6.2 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 6 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 3.0 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 5 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Wind 1 LLC | Marshall Wind Farm, LLC | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 2.5 GWh | Nov 2007 | Dec 2024 | Wind |
| Marshall Solar Energy Project | Marshall Solar Energy Project | Marshall, MN | Midcontinent Independent System Operator, Inc. (MISO) | 96.6 GWh | Dec 2016 | Dec 2025 | Solar |
| Marshall Solar | Marshall Solar | Hartsville, SC | Duke Energy Progress East (CPLE) | 3.2 GWh | Jun 2022 | Dec 2024 | Solar |
| Marsh Valley Development | Marsh Valley Development Inc | McCammon, ID | PacifiCorp East (PACE) | 6.9 GWh | Mar 1993 | Apr 2024 | Water |
| Marsh Landing Generating Station | Marsh Landing LLC | Antioch, CA | California Independent System Operator (CISO) | 15.7 GWh | Apr 2013 | Dec 2025 | Natural Gas |
| Mars Wrigley Confectionery US, LLC | Mars Wrigley Confectionery US, LLC | Hackettstown, NJ | PJM Interconnection, LLC (PJM) | 41.7 GWh | Sep 1984 | Dec 2024 | Natural Gas |
| ME - Novel (Lighthouse Ph I) Mars Hill | Mars Hill Road Solar Farm, LLC | Westfield, ME | ISO New England (ISNE) | 22.0 MWh | Jul 2024 | Dec 2024 | Solar |
| OR - Green Key - Marquam | Marquam Creek Solar, LLC | Molalla, OR | Portland General Electric Company (PGE) | 37.0 MWh | Nov 2024 | Dec 2024 | Solar |
| Marlow Solar, LLC CSG | Marlow Solar, LLC | Bluford, IL | Midcontinent Independent System Operator, Inc. (MISO) | 4.3 GWh | Nov 2020 | Dec 2024 | Solar |
| Marlborough Solar | Marlborough Solar, LLC | Milton, NY | ISO New England (ISNE) | 3.4 GWh | Feb 2021 | Dec 2024 | Solar |
| Marlboro Mushrooms Solar Field | Marlboro Mushroom | West Grove, PA | PJM Interconnection, LLC (PJM) | 1.3 GWh | Oct 2011 | Dec 2024 | Solar |
| Markum Solar Farm | Markum Solar Farm, LLC | Valley Mills, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 364.6 GWh | Oct 2024 | Dec 2025 | Solar |
| Marion Solar LNG | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 2.1 GWh | Sep 2015 | Dec 2024 | Solar |
| Belmont | Marion Solar LLC | Indianapolis, IN | Midcontinent Independent System Operator, Inc. (MISO) | 5.2 GWh | Oct 2015 | Dec 2024 | Solar |
| Heller 400M | Marina Energy LLC | Edison Township, NJ | PJM Interconnection, LLC (PJM) | 1.4 GWh | Apr 2013 | Dec 2024 | Solar |
| Heller Industrial Parks | Marina Energy LLC | Dayton, NJ | PJM Interconnection, LLC (PJM) | 7.7 GWh | Nov 2011 | Dec 2024 | Solar |
| Freeze Solar | Marina Energy LLC | Dayton, NJ | PJM Interconnection, LLC (PJM) | 2.0 GWh | Nov 2013 | Dec 2024 | Solar |
| Syncarpha Freetown | Marie's Way Solar I, LLC | Freetown, MA | ISO New England (ISNE) | 6.2 GWh | Oct 2016 | Dec 2024 | Solar |
| Marcus Hook Energy LP | Marcus Hook Energy LP | Marcus Hook, PA | PJM Interconnection, LLC (PJM) | 5.6 TWh | Nov 2004 | Dec 2025 | Natural Gas |
| Marco Ranch | Marco Power Inc | Jerome, ID | Idaho Power Company (IPCO) | 2.5 GWh | Jul 1985 | Oct 2024 | Water |
| DC Water Solar | Marbury Point Solar LLC | Washington, DC | PJM Interconnection, LLC (PJM) | 5.6 GWh | Apr 2021 | Dec 2024 | Solar |
| Marble River Wind Farm | Marble River, LLC | Churubusco, NY | New York Independent System Operator (NYIS) | 495.4 GWh | Oct 2012 | Dec 2025 | Wind |
| Mapleton Community Solar | Mapleton Community Solar | Mapleton, MN | Midcontinent Independent System Operator, Inc. (MISO) | 5.0 GWh | May 2017 | Dec 2024 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 6.7 GWh | Oct 2021 | Dec 2024 | Solar |
| Mantisi | Mantisi Solar LLC | Brockport, NY | New York Independent System Operator (NYIS) | 6.5 GWh | Feb 2024 | Dec 2024 | Solar |
| Custer Energy Center | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 5.5 GWh | May 1999 | Dec 2024 | Natural Gas |
| Manitowoc | Manitowoc Public Utilities | Manitowoc, WI | Midcontinent Independent System Operator, Inc. (MISO) | 178.1 GWh | May 1955 | Dec 2025 | Wood/Wood Waste Solids : 90.5% Petroleum Coke : 5.3% Bituminous Coal : 3.9% |
| Manchester Street | Manchester Street, LLC. | Providence, RI | ISO New England (ISNE) | 2.0 TWh | Aug 1995 | Dec 2025 | Natural Gas : 96.7% Distillate Fuel Oil : 3.3% |
| Mammoth Plains | Mammoth Plains Wind Project | Oakwood, OK | Southwest Power Pool (SWPP) | 719.9 GWh | Nov 2014 | Dec 2024 | Wind |
| Mammoth North Solar | Mammoth North, LLC | Knox, IN | PJM Interconnection, LLC (PJM) | 748.3 GWh | Oct 2024 | Dec 2025 | Solar |
| Malmedal Solar Garden | Malmedal Garden LLC | Starbuck, MN | Midcontinent Independent System Operator, Inc. (MISO) | 1.7 GWh | Jun 2019 | Dec 2024 | Solar |
| Major Oak Power | Major Oak Power, LLC | Bremond, TX | Electric Reliability Council of Texas, Inc. (ERCO) | 2.2 TWh | Aug 1990 | Dec 2025 | Lignite Coal : 99.8% |
| MMWAC Resource Recovery Facility | Maine Waste to Energy | Auburn, ME | ISO New England (ISNE) | 10.1 GWh | May 1992 | Dec 2025 | Non-biogenic Municipal Solid Waste : 54.0% Biogenic Municipal Solid Waste : 44.2% Natural Gas : 1.7% |
| Pittsfield Solar (N. Main St) | Maine DG Solar Pittsfield, LLC | Pittsfield, ME | ISO New England (ISNE) | 8.4 GWh | Sep 2023 | Dec 2024 | Solar |
| Monmouth | Maine DG Solar Monmouth, LLC | Monmouth, ME | ISO New England (ISNE) | 9.4 GWh | Feb 2022 | Dec 2024 | Solar |
| Harmony Solar (ME) | Maine DG Solar Harmony, LLC | Harmony, ME | ISO New England (ISNE) | 8.9 GWh | Jul 2022 | Dec 2024 | Solar |
| Baldwin (ME) | Maine DG Solar Baldwin, LLC | West Baldwin, ME | ISO New England (ISNE) | 9.9 GWh | Feb 2022 | Dec 2024 | Solar |
| Augusta | Maine DG Solar Augusta, LLC | Augusta, ME | ISO New England (ISNE) | 4.7 GWh | Feb 2022 | Dec 2024 | Solar |
| Maimonides Medical Center | Maimonides Medical Center | Brooklyn, NY | New York Independent System Operator (NYIS) | 21.0 MWh | Dec 1989 | Dec 2024 | Distillate Fuel Oil |
| Biomass to Energy Facility, Kauai | Mahipapa LLC | Koloa, HI | 6.4 GWh | Apr 2014 | Dec 2024 | Agricultural By-Products : 99.8% | |
| Magnolia Power | Magnolia Power Holdings LLC | Plaquemine, LA | Midcontinent Independent System Operator, Inc. (MISO) | 100.3 GWh | - | Dec 2025 | Natural Gas |
| Magdaline Solar, LLC | Magdaline Solar, LLC | Lynchburg, SC | Duke Energy Progress East (CPLE) | 2.9 GWh | Aug 2023 | Dec 2024 | Solar |
| Madison Windpower LLC | Madison Windpower LLC | Madison, NY | New York Independent System Operator (NYIS) | 543.0 MWh | Sep 2000 | Sep 2025 | Wind |
| Tyto Solar | Madison Gas & Electric Co | Fitchburg, WI | Midcontinent Independent System Operator, Inc. (MISO) | 10.8 GWh | Jan 2024 | Dec 2024 | Solar |
| Saratoga Wind Farm | Madison Gas & Electric Co | Lime Springs, IA | Midcontinent Independent System Operator, Inc. (MISO) | 270.2 GWh | Jan 2019 | Dec 2025 | Wind |
| 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 |
| 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 |
| Middleton Airport Solar | Madison Gas & Electric Co | Middleton, WI | Midcontinent Independent System Operator, Inc. (MISO) | 8.2 GWh | Jun 2020 | Dec 2024 | Solar |
| Sycamore (WI) | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 19.0 MWh | Nov 1967 | Dec 2024 | Natural Gas |
| 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 |
| 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 |
| Dane County Airport Solar | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 17.7 GWh | Nov 2020 | 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 |
| Diesel Generators | Madison Gas & Electric Co | Madison, WI | Midcontinent Independent System Operator, Inc. (MISO) | 861.0 MWh | May 2001 | Dec 2025 | Distillate Fuel Oil |
| Madison Fields Solar Project, LLC | Madison Fields Solar Project, LLC | Irwin, OH | PJM Interconnection, LLC (PJM) | 381.0 GWh | Dec 2023 | Dec 2025 | Solar |
| Fairview Farms | Madison Energy Investments LLC | Bel Air, MD | PJM Interconnection, LLC (PJM) | 20.6 GWh | Nov 2024 | Dec 2025 | Solar |
| North Kern 1 | Madison Energy Investments LLC | Shafter, CA | California Independent System Operator (CISO) | 3.9 GWh | May 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 |
| 3100 Valleyview Drive | Madison Energy Investments LLC | Columbus, OH | PJM Interconnection, LLC (PJM) | 548.0 MWh | Jul 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 |
| Howell (Lowes) | Madison Energy Investments LLC | Howell, NJ | PJM Interconnection, LLC (PJM) | 1.0 GWh | Feb 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 Fletcher | Madison Energy Investments LLC | Tifton, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.6 GWh | Sep 2023 | 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 |
| 5 Berry | Madison Energy Investments LLC | Plainsville, MA | ISO New England (ISNE) | 3.9 GWh | Aug 2023 | 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 |
| Lowndes Cowart | Madison Energy Investments LLC | Valdosta, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.8 GWh | Sep 2023 | 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 |
| Barefoot Solar | Madison Energy Investments LLC | Fairfiled, ME | ISO New England (ISNE) | 6.7 GWh | Nov 2022 | 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 |
| 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 |
| 1 Commercial | Madison Energy Investments LLC | Sharon, MA | ISO New England (ISNE) | 770.0 MWh | Aug 2023 | Dec 2024 | Solar |
| 700 Binnewater | Madison Energy Investments LLC | Rosendale, NY | ISO New England (ISNE) | 1.6 GWh | Aug 2022 | 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 |
| 3Colton | Madison Energy Holdings LLC | Millbury, MA | ISO New England (ISNE) | 5.1 GWh | Jun 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 |
| Bartow Davidson | Madison Energy Holdings LLC | Cartersville, GA | Southern Company Services, Inc. - Trans (SOCO) | 6.0 GWh | Nov 2023 | 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 |
| IOS - MEW Phase 1 | Madison Energy Holdings LLC | Madison, ME | ISO New England (ISNE) | 1.0 GWh | Dec 2016 | 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 - ERW9 | Madison Energy Holdings LLC | Carteret, NJ | PJM Interconnection, LLC (PJM) | 6.9 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 |
| Valdosta Prison | Madison Energy Holdings LLC | Valdosta, GA | Southern Company Services, Inc. - Trans (SOCO) | 1.7 GWh | Jul 2017 | 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 |
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 |