Directory of Power Plants in the United States
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Westtown CSG | Altus Power America Management, LLC | Westtown, NY | ISO New England (ISNE) | 3.3 GWh | Apr 2019 | Dec 2025 | Solar |
| Syncarpha Millbury Hybrid (CSG) | Syncarpha Millbury, LLC | Millbury, MA | ISO New England (ISNE) | 8.0 GWh | Sep 2022 | Dec 2025 | Solar |
| Syncarpha Halifax Hybrid CSG | Syncarpha Halifax, LLC | Halifax, MA | ISO New England (ISNE) | 2.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Syncarpha Leicester Hybrid CSG | Syncarpha Leicester, LLC | Leicester, MA | ISO New England (ISNE) | 4.4 GWh | May 2021 | Dec 2025 | Solar |
| Syncarpha Westminster Hybrid CSG | Syncarpha Westminster, LLC | Westminster, MA | ISO New England (ISNE) | 5.7 GWh | Oct 2022 | Dec 2025 | Solar |
| Syncarpha Puddon II Hybrid CSG | Syncarpha Puddon II, LLC | Northbridge, MA | ISO New England (ISNE) | 8.5 GWh | Feb 2021 | Dec 2025 | Solar |
| Syncarpha Puddon I Hybrid CSG | Syncarpha Puddon I, LLC | Northbridge, MA | ISO New England (ISNE) | 8.4 GWh | Feb 2021 | Dec 2025 | Solar |
| Syncarpha Tewksbury Hybrid CSG | Syncarpha Tewksbury, LLC | Tewksbury, MA | ISO New England (ISNE) | 3.9 GWh | Jan 2022 | Dec 2025 | Solar |
| CP Middletown Solar I LLC | Green Street Power Partners | Middletown, CT | ISO New England (ISNE) | 1.6 GWh | Nov 2019 | Dec 2025 | Solar |
| CP Middletown Solar II LLC | Green Street Power Partners | Middletown, CT | ISO New England (ISNE) | 1.6 GWh | Nov 2019 | Dec 2025 | Solar |
| MHG Wallingford | Standard Solar | Wallingford, VT | ISO New England (ISNE) | 3.5 GWh | Nov 2019 | Dec 2025 | Solar |
| Syncarpha Northampton Hybrid CSG | Syncarpha Northampton, LLC | Northampton, MA | ISO New England (ISNE) | 4.9 GWh | Nov 2020 | Dec 2025 | Solar |
| Syncarpha Northbridge I Hybrid(CSG) | Syncarpha Northbridge I, LLC | Whitinsville, MA | ISO New England (ISNE) | 8.5 GWh | Nov 2021 | Dec 2025 | Solar |
| Syncarpha Northbridge II Hybrid CSG | Syncarpha Northbridge II, LLC | Whitinsville, MA | ISO New England (ISNE) | 7.6 GWh | Mar 2021 | Dec 2025 | Solar |
| Carver CSG | Altus Power America Management, LLC | Carver, MA | ISO New England (ISNE) | 3.5 GWh | Apr 2019 | Dec 2025 | Solar |
| Goose Pond Solar | LSE Dorado, LLC | Southwick, MA | ISO New England (ISNE) | 7.0 GWh | Dec 2019 | Dec 2025 | Solar |
| GSPP Gilman, LLC | Green Street Power Partners | Lunenburg, VT | ISO New England (ISNE) | 3.0 GWh | Aug 2018 | Dec 2025 | Solar |
| Cronin Road Solar 1, LLC CSG Hybrid | AES Distributed Energy | Warren, MA | ISO New England (ISNE) | 3.4 GWh | May 2020 | Dec 2025 | Solar |
| Syncarpha Blandford Hybrid CSG | Syncarpha Blandford, LLC | Blandford, MA | ISO New England (ISNE) | 7.9 GWh | Nov 2019 | Dec 2025 | Solar |
| Partridge Hill Solar Hybrid | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 2.9 GWh | Jun 2020 | Dec 2025 | Solar |
| Brookfield Wire Company | Dynamic Energy Solutions, LLC | Brookfield, MA | ISO New England (ISNE) | 1.5 GWh | May 2016 | Dec 2025 | Solar |
| Sherman Solar | Ecos Energy LLC | Griswold, CT | ISO New England (ISNE) | 1.6 GWh | Nov 2019 | Dec 2025 | Solar |
| Dry Bridge Solar (Brown University) | MN8 Energy LLC | North Kingstown, RI | ISO New England (ISNE) | 63.7 GWh | Oct 2023 | May 2026 | Solar |
| Jackson Solar (CT) | Ecos Energy LLC | Griswold, CT | ISO New England (ISNE) | 1.6 GWh | Nov 2019 | Dec 2025 | Solar |
| Randall Solar Project Hybrid | AES Distributed Energy | Berlin, MA | ISO New England (ISNE) | 8.5 GWh | Jun 2021 | Dec 2025 | Solar |
| Alicea Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 4.0 GWh | Nov 2020 | Dec 2025 | Solar |
| Gardner - Otter River Road | Otter River Road Solar LLC | Gardner, MA | ISO New England (ISNE) | 3.9 GWh | Sep 2019 | Dec 2025 | Solar |
| Sydney Solar | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 3.0 GWh | May 2020 | Dec 2025 | Solar |
| Dickinson Solar (CT) | Ecos Energy LLC | Hampton, CT | ISO New England (ISNE) | 1.5 GWh | May 2020 | Dec 2025 | Solar |
| Coventry Clean Energy Corporation | Washington Electric Coop - (VT) | Coventry, VT | ISO New England (ISNE) | 57.4 GWh | Jun 2005 | Dec 2025 | Landfill Gas |
| South Windsor Fuel Cell | South Energy Investments LLC | South Windsor, CT | ISO New England (ISNE) | 37.4 GWh | Feb 2020 | Dec 2025 | Natural Gas |
| RoxWind | RoxWind LLC | Roxbury, ME | ISO New England (ISNE) | 44.1 GWh | Oct 2021 | Dec 2025 | Wind |
| Battle Creek Solar | Ecos Energy LLC | Bennington, VT | ISO New England (ISNE) | 3.3 GWh | Sep 2018 | Dec 2025 | Solar |
| Plainfield Solar 2 | Ecos Energy LLC | Plainfield, CT | ISO New England (ISNE) | 1.5 GWh | Mar 2020 | Dec 2025 | Solar |
| Becton Dickinson Ground & Roof Top | Madison Energy Investments LLC | North Canaan, CT | ISO New England (ISNE) | 2.5 GWh | Feb 2018 | Dec 2025 | Solar |
| West A&B Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 4.7 GWh | Nov 2020 | Dec 2025 | Solar |
| GSPP Devens, LLC | Green Street Power Partners | Ayer, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2018 | Dec 2025 | Solar |
| GSPP Terrawatt Westfield LLC CSG | Green Street Power Partners | Westfield, MA | ISO New England (ISNE) | 6.0 GWh | Jan 2019 | Dec 2025 | Solar |
| GSPP Raynham TMLP, LLC CSG | Green Street Power Partners | Raynham, MA | ISO New England (ISNE) | 3.7 GWh | Jan 2019 | Dec 2025 | Solar |
| UB Fuel Cell | UB Fuel Cell | Bridgeport, CT | ISO New England (ISNE) | 10.1 GWh | Mar 2015 | Dec 2025 | Natural Gas |
| Ajax Solar, LLC (MA) | Green Street Power Partners | West Bridgewater, MA | ISO New England (ISNE) | 4.4 GWh | Nov 2017 | Dec 2025 | Solar |
| Nextsun Energy Littleton | Greenbacker Renewable Energy Corporation | Littleton, MA | ISO New England (ISNE) | 5.1 GWh | Sep 2013 | Dec 2025 | Solar |
| McDougle-Mitchell Solar Project Hybrid C | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 6.9 GWh | Jul 2020 | Dec 2025 | Solar |
| Cycz Solar Project CSG Hybrid | AES Distributed Energy | Spencer, MA | ISO New England (ISNE) | 2.9 GWh | May 2020 | Dec 2025 | Solar |
| 10 Briggs Solar NG, LLC (East) | NuGen Capital Management | East Greenwich, RI | ISO New England (ISNE) | 7.7 GWh | May 2021 | Dec 2025 | Solar |
| Hurteau Solar Project Hybrid | AES Distributed Energy | Uxbridge, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2020 | Dec 2025 | Solar |
| Middleton Solar Park | Novis Renewables, LLC | Middleton, MA | ISO New England (ISNE) | 6.8 GWh | May 2018 | Dec 2024 | Solar |
| Natick Mall | Natick Mall | Natick, MA | ISO New England (ISNE) | 3.6 GWh | Dec 2014 | Dec 2024 | Solar |
| CED Northampton Solar LLC Hybrid | RWE Clean Energy | Northampton, MA | ISO New England (ISNE) | 6.5 GWh | Nov 2019 | Dec 2025 | Solar |
| Kearsarge Amesbury Hybrid | Kearsarge Amesbury LLC | Amesbury, MA | ISO New England (ISNE) | 5.0 GWh | Nov 2019 | Dec 2025 | Solar |
| Kearsarge Gill | Kearsarge Gill LLC | Gill, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2017 | Dec 2025 | Solar |
| Town of Burrillville Solar CSG | Standard Solar | Burrillville, RI | ISO New England (ISNE) | 6.6 GWh | Sep 2020 | Dec 2025 | Solar |
| GSPP Boxborough Littleton (MA) | CleanCapital Holdings | Boxborough, MA | ISO New England (ISNE) | 6.2 GWh | Dec 2018 | Dec 2025 | Solar |
| Holiday Hill Community Wind | Greenbacker Renewable Energy Corporation | Russell, MA | ISO New England (ISNE) | 11.6 GWh | Nov 2019 | Dec 2025 | Wind |
| Waterside Power, LLC | Waterside Power, LLC | Stamford, CT | ISO New England (ISNE) | 2.0 GWh | May 2003 | Dec 2025 | Distillate Fuel Oil |
| Lempster Wind LLC | Avangrid Power LLC | Lempster, NH | ISO New England (ISNE) | 61.8 GWh | Nov 2008 | May 2026 | Wind |
| Wallingford Energy | Wallingford Energy LLC | Wallingford, CT | ISO New England (ISNE) | 107.0 GWh | Jul 2001 | Dec 2025 | Natural Gas |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 3.7 GWh | Jan 2004 | Dec 2025 | Landfill Gas |
| CPV Towantic Energy Center | CPV Towantic, LLC | Oxford, CT | ISO New England (ISNE) | 5.5 TWh | Apr 2018 | May 2026 | Natural Gas |
| Waterbury Generation | Engie North America | Waterbury, CT | ISO New England (ISNE) | 55.0 GWh | May 2009 | Dec 2025 | Natural Gas : 99.1% Kerosene : 0.9% |
| Newington Energy Center | Essential Power Operating Services, LLC | Newington, NH | ISO New England (ISNE) | 2.1 TWh | Sep 2002 | May 2026 | Natural Gas : 92.8% Distillate Fuel Oil : 7.2% |
| Quinebaug Lower Project | Quinebaug Associates LLC | Brooklyn, CT | ISO New England (ISNE) | 5.4 GWh | Mar 1990 | Dec 2025 | Water |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 31.7 GWh | Sep 2007 | Dec 2025 | Landfill Gas |
| Ocean State Power II | Ocean State Power II | Harrisville, RI | ISO New England (ISNE) | 576.9 GWh | Sep 1991 | Dec 2025 | Natural Gas : 99.9% |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 253.3 GWh | Feb 1993 | Dec 2025 | Natural Gas |
| Lake Road Generating Plant | Lake Road Generating Co LP | Dayville, CT | ISO New England (ISNE) | 5.9 TWh | Feb 2002 | May 2026 | Natural Gas |
| Westbrook Energy Center Power Plant | Westbrook Energy Center | Westbrook, ME | ISO New England (ISNE) | 3.5 TWh | Apr 2001 | May 2026 | Natural Gas |
| Berkshire Power | Berkshire Power Co LLC | Agawam, MA | ISO New England (ISNE) | 809.5 GWh | Aug 1999 | Dec 2025 | Natural Gas |
| Chace Mill Winooski One | City of Burlington Electric - (VT) | Winooski, VT | ISO New England (ISNE) | 17.1 GWh | Mar 1993 | Dec 2025 | Water |
| Bridgeport Energy Project | Bridgeport Energy LLC | Bridgeport, CT | ISO New England (ISNE) | 2.7 TWh | May 1998 | May 2026 | Natural Gas |
| Granite Ridge | Granite Ridge Energy LLC | Londonderry, NH | ISO New England (ISNE) | 3.8 TWh | Feb 2003 | May 2026 | Natural Gas |
| Tiverton Power Plant | Tiverton Power LLC | Tiverton, RI | ISO New England (ISNE) | 1.5 TWh | Feb 2000 | Dec 2025 | Natural Gas |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | North Weymouth, MA | ISO New England (ISNE) | 2.8 TWh | Jul 2003 | May 2026 | Natural Gas : 92.7% Distillate Fuel Oil : 7.3% |
| Milford Power Project | Milford Power Co LLC | Milford, CT | ISO New England (ISNE) | 3.2 TWh | Jan 2004 | May 2026 | Natural Gas |
| Thundermist Hydro | City of Woonsocket - (RI) | Providence, RI | ISO New England (ISNE) | 3.3 GWh | May 1981 | Jul 2025 | Water |
| Wheelabrator Lisbon | Wheelabrator Environmental Systems | Lisbon, CT | ISO New England (ISNE) | 100.8 GWh | Sep 1995 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Maine Independence Station | Casco Bay Energy Co LLC | Veazie, ME | ISO New England (ISNE) | 1.4 TWh | Apr 2000 | Dec 2025 | Natural Gas |
| Goodwin Hydroelectric | Metropolitan Dist of Hartford | W. Hartland, CT | ISO New England (ISNE) | 7.8 GWh | Mar 1986 | Oct 2025 | Water |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 6.9 GWh | Aug 1997 | Dec 2025 | Landfill Gas |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 995.2 GWh | Mar 2001 | May 2026 | Natural Gas |
| Nashua Plant | NextEra Renewable Fuels, LLC | Nashua, NH | ISO New England (ISNE) | 13.1 GWh | Mar 1996 | Dec 2025 | Landfill Gas |
| Rumford Power LLC | Rumford Power | Rumford, ME | ISO New England (ISNE) | 792.6 GWh | Jun 2000 | Dec 2025 | Natural Gas |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 2.9 TWh | May 2001 | May 2026 | Natural Gas |
| Lochmere Hydroelectric Plant | Eagle Creek Renewable Energy, LLC | Tilton, NH | ISO New England (ISNE) | 2.1 GWh | Nov 1984 | Oct 2025 | Water |
| Pratt & Whitney | United Technologies | East Hartford, CT | ISO New England (ISNE) | 75.9 GWh | Dec 1991 | May 2026 | Natural Gas |
| Wellesley College Central Utility Plant | Wellesley College | Wellesley, MA | ISO New England (ISNE) | 9.6 GWh | May 1985 | Dec 2025 | Natural Gas |
| Berlin Gorham | Great Lakes Hydro America LLC | Berlin, NH | ISO New England (ISNE) | 101.1 GWh | Dec 1913 | Dec 2025 | Water |
| Mascoma Hydro | Green Mountain Power Corp | W. Lebanon, NH | ISO New England (ISNE) | 202.0 MWh | Nov 1988 | Dec 2025 | Water |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 3.1 TWh | Oct 2002 | May 2026 | Natural Gas |
| EHC West Hopkinton | Green Mountain Power Corp | West Hopkinton, NH | ISO New England (ISNE) | 1.2 GWh | Jun 1985 | Dec 2025 | Water |
| Rhode Island State Energy Center | RISEC Operating Services | Johnston, RI | ISO New England (ISNE) | 3.5 TWh | Sep 2002 | Apr 2026 | Natural Gas |
| Turnkey Landfill Gas Recovery | WM Renewable Energy LLC | Rochester, NH | ISO New England (ISNE) | 38.5 GWh | Jan 1992 | Dec 2025 | Landfill Gas |
| Medway Hydro | Brookfield Black Bear Hydro, LLC | Medway, ME | ISO New England (ISNE) | 22.9 GWh | Dec 1922 | Dec 2025 | Water |
| NE Renewable Fitchburg, LLC | NE Renewable Fitchburg, LLC | Westminster, MA | ISO New England (ISNE) | 78.7 GWh | Jul 1992 | Dec 2025 | Wood/Wood Waste Solids : 98.7% Natural Gas : 1.3% |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 209.4 GWh | May 1995 | Dec 2025 | Natural Gas |
| Rollinsford | Green Mountain Power Corp | Rollinsford, NH | ISO New England (ISNE) | 3.0 GWh | Sep 1986 | Dec 2025 | Water |
| Dighton Power Plant | Dighton Power, LLC | Dighton, MA | ISO New England (ISNE) | 275.5 GWh | Apr 1999 | Dec 2025 | Natural Gas |
| Dartmouth College Heating Plant | Dartmouth College | Hanover, NH | ISO New England (ISNE) | 10.6 GWh | Dec 1969 | May 2026 | Residual Fuel Oil |
| Wheelabrator Bridgeport | Wheelabrator Environmental Systems | Bridgeport, CT | ISO New England (ISNE) | 429.8 GWh | Jun 1988 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Pfizer Groton Plant | Pfizer Inc | Groton, CT | ISO New England (ISNE) | 75.4 GWh | Dec 1947 | May 2026 | Natural Gas : 88.5% Distillate Fuel Oil : 11.5% |
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 |