Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Signature Breads Chelsea | JDC 65R Owner, LLC | Chelsea, MA | ISO New England (ISNE) | 2.0 MWh | Apr 2019 | Dec 2023 | Distillate Fuel Oil |
| Front Street | City of Chicopee - (MA) | Chicopee, MA | ISO New England (ISNE) | 497.0 MWh | Dec 1977 | Dec 2024 | Distillate Fuel Oil |
| Wilkins Station | Town of Marblehead - (MA) | Marblehead, MA | ISO New England (ISNE) | 94.0 MWh | Oct 1975 | Dec 2024 | Distillate Fuel Oil |
| Shrewsbury | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 34.0 MWh | Oct 1969 | Dec 2024 | Distillate Fuel Oil |
| West Tisbury Generating Facility | Vineyard Reliability LLC | West Tisbury, MA | ISO New England (ISNE) | 3.0 GWh | Dec 1974 | Dec 2024 | Distillate Fuel Oil |
| West Water Street | City of Taunton | Taunton, MA | ISO New England (ISNE) | 1.8 GWh | Dec 2017 | Dec 2024 | Distillate Fuel Oil |
| Exelon Framingham LLC | Constellation Power, Inc | Framingham, MA | ISO New England (ISNE) | 273.0 MWh | Aug 1969 | Dec 2024 | Distillate Fuel Oil |
| Exelon Medway LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 2.0 GWh | Jun 1970 | Dec 2024 | Distillate Fuel Oil |
| Oak Bluffs Diesel Generating Facility | Vineyard Reliability LLC | Oak Bluffs, MA | ISO New England (ISNE) | 2.1 GWh | Dec 1968 | Dec 2024 | Distillate Fuel Oil |
| M Street Jet | Massachusetts Bay Trans Auth | Boston, MA | ISO New England (ISNE) | 457.0 MWh | Apr 1979 | Dec 2024 | Kerosene |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 5.8 GWh | Aug 1997 | Dec 2024 | Landfill Gas |
| Granby LFG | Industrial Power Services Corp. | Granby, MA | ISO New England (ISNE) | 3.1 GWh | Aug 2001 | Dec 2024 | Landfill Gas |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 9.5 GWh | Jan 2004 | Dec 2024 | Landfill Gas |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 32.3 GWh | Sep 2007 | Dec 2024 | Landfill Gas |
| Greater New Bedford LFG Utiliz. Facility | CommonWealth New Bedford Energy LLC | New Bedford, MA | ISO New England (ISNE) | 16.9 GWh | Sep 2005 | Dec 2024 | Landfill Gas |
| Southbridge Landfill Gas-to-Energy | Southbridge Recycling and Disposal Park | Southbridge, MA | ISO New England (ISNE) | 11.9 GWh | Sep 2011 | Dec 2024 | Landfill Gas |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 253.1 GWh | Feb 1993 | Dec 2024 | Natural Gas |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 204.8 GWh | May 1995 | Dec 2024 | Natural Gas |
| Wellesley College Central Utility Plant | Wellesley College | Wellesley, MA | ISO New England (ISNE) | 889.0 MWh | May 1985 | Dec 2024 | Natural Gas |
| Dighton Power Plant | Dighton Power, LLC | Dighton, MA | ISO New England (ISNE) | 531.1 GWh | Apr 1999 | Dec 2024 | Natural Gas |
| Gillette SBMC | The Gillette Company | Boston, MA | ISO New England (ISNE) | 54.9 GWh | Jan 1971 | Sep 2025 | Natural Gas |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 475.7 GWh | Jun 1993 | Dec 2024 | Natural Gas |
| Indian Orchard Plant 1 | Solutia Inc-Indian | Springfield, MA | ISO New England (ISNE) | 137.0 MWh | Apr 1985 | Aug 2025 | Natural Gas |
| Mystic Generating Station | Constellation Mystic Power LLC | Charlestown, MA | ISO New England (ISNE) | 1.8 TWh | May 1969 | Mar 2024 | Natural Gas |
| Clark University | Clark University | Worcester, MA | ISO New England (ISNE) | 4.4 GWh | Dec 2012 | Dec 2024 | Natural Gas |
| Berkshire Power | Berkshire Power Co LLC | Agawam, MA | ISO New England (ISNE) | 573.3 GWh | Aug 1999 | Dec 2024 | Natural Gas |
| One Patriot | Bloom Energy | Foxborough, MA | ISO New England (ISNE) | 16.3 GWh | Nov 2019 | Dec 2024 | Natural Gas |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 3.5 TWh | Oct 2002 | Sep 2025 | Natural Gas |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 482.2 GWh | Mar 2001 | Sep 2025 | Natural Gas |
| Salem Harbor Power Development LP | Salem Harbor Power Development LP | Salem, MA | ISO New England (ISNE) | 1.7 TWh | Apr 2018 | Sep 2025 | Natural Gas |
| Equinix - Billerica | Bloom Energy | Billerica, MA | ISO New England (ISNE) | 15.0 GWh | Aug 2021 | Dec 2024 | Natural Gas |
| Centech Gas Generator | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 537.0 MWh | Mar 2019 | Dec 2024 | Natural Gas |
| Norton Powerhouse 2 | Norton Powerhouse 2 | Worcester, MA | ISO New England (ISNE) | 28.6 GWh | Oct 2022 | Dec 2024 | Natural Gas |
| CoreSite - Somerville | Bloom Energy | Somerville, MA | ISO New England (ISNE) | 4.5 GWh | Aug 2020 | Dec 2024 | Natural Gas |
| Boston Medical Center CHP Plant | Boston Medical Center | Boston, MA | ISO New England (ISNE) | 14.2 GWh | Mar 2017 | Dec 2024 | Natural Gas |
| Amherst College Co Gen | Amherst College | Amherst, MA | ISO New England (ISNE) | 6.9 GWh | Oct 2006 | Dec 2024 | Natural Gas |
| Bridgewater Complex Co-Generation Plant | Massachusetts Department of Correction | Bridgewater, MA | ISO New England (ISNE) | 1.1 GWh | Oct 2015 | Dec 2024 | Natural Gas |
| Smith College Central Heating Plant | The Trustees of Smith College | Northampton, MA | ISO New England (ISNE) | 14.2 GWh | Sep 2008 | Dec 2024 | Natural Gas |
| West Groton CHP | Hollingsworth & Vose Co West Groton | Groton, MA | ISO New England (ISNE) | 22.0 GWh | Nov 2015 | Dec 2024 | Natural Gas |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 3.0 TWh | May 2001 | Sep 2025 | Natural Gas |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 351.9 GWh | May 1968 | Sep 2025 | Natural Gas : 59.2% Residual Fuel Oil : 37.0% Distillate Fuel Oil : 3.8% |
| Cherry Street | Town of Hudson - (MA) | Hudson, MA | ISO New England (ISNE) | 199.0 MWh | Apr 1951 | Dec 2024 | Natural Gas : 64.2% Distillate Fuel Oil : 35.8% |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 125.4 GWh | Oct 1981 | Sep 2025 | Natural Gas : 74.6% Distillate Fuel Oil : 25.4% |
| Waters River | City of Peabody - (MA) | Peabody, MA | ISO New England (ISNE) | 4.8 GWh | Nov 1971 | Nov 2024 | Natural Gas : 78.8% Distillate Fuel Oil : 21.2% |
| Williams College - Campus CHP | President & Trustees of Williams College | Williamstown, MA | ISO New England (ISNE) | 1.3 GWh | Feb 2003 | Dec 2024 | Natural Gas : 84.0% Distillate Fuel Oil : 16.0% |
| High Street Station | Town of Ipswich - (MA) | Ipswich, MA | ISO New England (ISNE) | 197.0 MWh | May 1937 | Dec 2024 | Natural Gas : 91.9% Distillate Fuel Oil : 8.1% |
| Potter Station 2 | Town of Braintree - (MA) | Braintree, MA | ISO New England (ISNE) | 23.3 GWh | Jun 1963 | Dec 2024 | Natural Gas : 93.9% Distillate Fuel Oil : 6.1% |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | North Weymouth, MA | ISO New England (ISNE) | 3.1 TWh | Jul 2003 | Sep 2025 | Natural Gas : 95.1% Distillate Fuel Oil : 4.9% |
| Exelon West Medway II LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 171.4 GWh | Feb 2019 | Sep 2025 | Natural Gas : 97.7% Kerosene : 2.3% |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 318.1 GWh | Dec 1979 | Dec 2024 | Natural Gas : 98.3% Distillate Fuel Oil : 1.7% |
| Central Heating Plant | University of Massachusetts Amherst | Amherst, MA | ISO New England (ISNE) | 104.0 GWh | Sep 2007 | Dec 2024 | Natural Gas : 98.5% Distillate Fuel Oil : 1.5% |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 123.3 GWh | Jun 1990 | Sep 2025 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
| Erving Paper Mills | Erving Paper Mills Inc | Erving, MA | ISO New England (ISNE) | 41.7 GWh | Nov 2013 | Sep 2025 | Natural Gas : 98.9% Distillate Fuel Oil : 1.1% |
| Kendall Square Station | Kendall Green Energy, LLC | Cambridge, MA | ISO New England (ISNE) | 1.5 TWh | May 1949 | Sep 2025 | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| 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% |
| Dartmouth Power Associates LP | Morris Energy Operations Company, LLC | Dartmouth, MA | ISO New England (ISNE) | 63.0 GWh | Feb 1992 | Dec 2024 | Natural Gas : 99.7% |
| Cleary Flood Hybrid | City of Taunton | Taunton, MA | ISO New England (ISNE) | 132.5 GWh | May 1966 | Dec 2024 | Natural Gas : 99.8% |
| Bellingham Cogeneration Facility | Northeast Energy Associates LP | Bellingham, MA | ISO New England (ISNE) | 367.8 GWh | Aug 1991 | Dec 2024 | Natural Gas : 99.9% |
| Covanta Haverhill | Ogden Projects Inc-Haverhill | Haverhill, MA | ISO New England (ISNE) | 226.4 GWh | Apr 1989 | Sep 2025 | Non-biogenic Municipal Solid Waste : 52.2% Biogenic Municipal Solid Waste : 42.7% Distillate Fuel Oil : 5.1% |
| SEMASS Resource Recovery | SEMASS Partnership | West Wareham, MA | ISO New England (ISNE) | 569.5 GWh | Jun 1988 | Sep 2025 | Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.3% Natural Gas : 1.5% |
| Wheelabrator Saugus | Wheelabrator Environmental Systems | Saugus, MA | ISO New England (ISNE) | 226.1 GWh | Jul 1985 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Wheelabrator Millbury Facility | Wheelabrator Environmental Systems | Millbury, MA | ISO New England (ISNE) | 317.5 GWh | Aug 1987 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Wheelabrator North Andover | Wheelabrator Environmental Systems | North Andover, MA | ISO New England (ISNE) | 233.1 GWh | Apr 1985 | Sep 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 33.4 GWh | Jul 1995 | Sep 2025 | Other Biomass Gas : 83.9% Distillate Fuel Oil : 10.8% Wind : 2.6% Solar : 1.9% Water : 0.9% |
| W. Orange Rd Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 7.7 GWh | Aug 2021 | Dec 2024 | Solar |
| Cherry Valley Solar, LLC CSG | 38 Degrees North, LLC | Leicester, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2024 | Solar |
| ISM Solar Dighton 2, LLC CSG | 38 Degrees North, LLC | Dighton, MA | ISO New England (ISNE) | 3.7 GWh | Nov 2017 | Dec 2024 | Solar |
| Incom Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 3.6 GWh | Oct 2017 | Dec 2024 | Solar |
| JH Solar, LLC CSG | 38 Degrees North, LLC | North Brookfield, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2024 | Solar |
| Woodchuck Solar, LLC CSG | 38 Degrees North, LLC | Spencer, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Middleton Solar Park | HG Solar Development, LLC | Middleton, MA | ISO New England (ISNE) | 6.8 GWh | May 2018 | Dec 2024 | Solar |
| Dudley River 3 Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.7 GWh | Oct 2017 | Dec 2024 | Solar |
| West Street Solar 1 LLC | AES Distributed Energy | Gardner, MA | ISO New England (ISNE) | 8.7 GWh | Nov 2019 | Dec 2024 | Solar |
| Wilbur Woods Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 8.3 GWh | Aug 2021 | Dec 2024 | Solar |
| Blair Wire Village Solar, LLC CSG | 38 Degrees North, LLC | Spencer, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2017 | Dec 2024 | Solar |
| Oak Street Solar | Citizens Enterprises Corporation | Springfield, MA | ISO New England (ISNE) | 5.6 GWh | Nov 2019 | Dec 2024 | Solar |
| Dudley River 2 Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2024 | Solar |
| Hudson | Captona Hudson LLC | Hudson, MA | ISO New England (ISNE) | 5.5 GWh | Apr 2017 | Dec 2024 | Solar |
| Canton | Captona Canton LLC | Canton, MA | ISO New England (ISNE) | 6.4 GWh | Jul 2012 | Dec 2024 | Solar |
| Ravenbrook | Captona Ravenbrook LLC | Carver, MA | ISO New England (ISNE) | 6.9 GWh | Nov 2013 | Dec 2024 | Solar |
| SELCO Community Solar | Massachusetts Mun Wholes Electric Co | Shrewsbury, MA | ISO New England (ISNE) | 4.9 GWh | May 2018 | Dec 2024 | Solar |
| Berkley | Captona Berkley LLC | Berkley, MA | ISO New England (ISNE) | 4.0 GWh | Mar 2017 | Dec 2024 | Solar |
| Alicea Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 3.6 GWh | Nov 2020 | Dec 2024 | Solar |
| Kearsarge Concord II | Kearsarge Concord II LLC | Concord, MA | ISO New England (ISNE) | 6.9 GWh | Dec 2016 | Dec 2024 | Solar |
| Partridge Hill Solar Hybrid | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2020 | Dec 2024 | Solar |
| Sutton Solar 2, LLC CSG | Sutton Solar 2, LLC | Sutton, MA | ISO New England (ISNE) | 1.3 GWh | Nov 2020 | Dec 2024 | Solar |
| Granby Solar, LLC CSG | Granby Solar, LLC | Granby, MA | ISO New England (ISNE) | 6.1 GWh | Jun 2021 | Dec 2024 | Solar |
| Kearsarge Amesbury Hybrid | Kearsarge Amesbury LLC | Amesbury, MA | ISO New England (ISNE) | 5.4 GWh | Nov 2019 | Dec 2024 | Solar |
| Hurteau Solar Project Hybrid | AES Distributed Energy | Uxbridge, MA | ISO New England (ISNE) | 3.0 GWh | Feb 2020 | Dec 2024 | Solar |
| Kearsarge Granby | Kearsarge Granby LLC | Granby, MA | ISO New England (ISNE) | 3.6 GWh | Feb 2017 | Dec 2024 | Solar |
| Brookfield Wire Company | Dynamic Energy Solutions, LLC | Brookfield, MA | ISO New England (ISNE) | 1.6 GWh | May 2016 | Dec 2024 | Solar |
| Barton Acres Solar, LLC CSG | 38 Degrees North, LLC | Phillipston, MA | ISO New England (ISNE) | 1.7 GWh | Sep 2017 | Dec 2024 | Solar |
| McDougle-Mitchell Solar Project Hybrid C | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 7.5 GWh | Jul 2020 | Dec 2024 | Solar |
| Cycz Solar Project CSG Hybrid | AES Distributed Energy | Spencer, MA | ISO New England (ISNE) | 2.9 GWh | May 2020 | Dec 2024 | Solar |
| West A&B Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 4.7 GWh | Nov 2020 | Dec 2024 | Solar |
| Annese Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 7.6 GWh | Nov 2020 | Dec 2024 | Solar |
| Randall Solar Project Hybrid | AES Distributed Energy | Berlin, MA | ISO New England (ISNE) | 7.9 GWh | Jun 2021 | Dec 2024 | Solar |
| St. Joseph's Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Boutillier Solar, LLC CSG | 38 Degrees North, LLC | Leicester, MA | ISO New England (ISNE) | 4.7 GWh | Mar 2018 | Dec 2024 | Solar |
| Natick Mall | Natick Mall | Natick, MA | ISO New England (ISNE) | 3.6 GWh | Sep 2018 | Dec 2024 | Solar |
Browse Power Plants By Massachusetts Counties
Figures are based on September 2025 generation numbers.| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Norfolk County, MA | # 1 | 38 | 7.3 TWh |
| Worcester County, MA | # 2 | 190 | 4.9 TWh |
| Middlesex County, MA | # 3 | 68 | 3.7 TWh |
| Essex County, MA | # 4 | 39 | 2.5 TWh |
| Hampden County, MA | # 5 | 86 | 1.7 TWh |
| Bristol County, MA | # 6 | 71 | 947.8 GWh |
| Plymouth County, MA | # 7 | 84 | 848.5 GWh |
| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Barnstable County, MA | # 8 | 23 | 435.9 GWh |
| Suffolk County, MA | # 9 | 13 | 429.2 GWh |
| Franklin County, MA | # 10 | 33 | 290.3 GWh |
| Hampshire County, MA | # 11 | 37 | 270.0 GWh |
| Berkshire County, MA | # 12 | 44 | 250.6 GWh |
| Dukes County, MA | # 13 | 7 | 9.9 GWh |