Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Exelon Medway LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 3.7 GWh | Jun 1970 | Dec 2023 | Distillate Fuel Oil |
| West Water Street | City of Taunton | Taunton, MA | ISO New England (ISNE) | 1.3 GWh | Dec 2017 | Dec 2023 | Distillate Fuel Oil |
| Oak Bluffs Diesel Generating Facility | Vineyard Reliability LLC | Oak Bluffs, MA | ISO New England (ISNE) | 1.3 GWh | Dec 1968 | Dec 2023 | Distillate Fuel Oil |
| Wilkins Station | Town of Marblehead - (MA) | Marblehead, MA | ISO New England (ISNE) | 78.0 MWh | Oct 1975 | Dec 2023 | Distillate Fuel Oil |
| Exelon Framingham LLC | Constellation Power, Inc | Framingham, MA | ISO New England (ISNE) | 792.0 MWh | Aug 1969 | Dec 2023 | Distillate Fuel Oil |
| Front Street | City of Chicopee - (MA) | Chicopee, MA | ISO New England (ISNE) | 476.0 MWh | Dec 1977 | Dec 2023 | Distillate Fuel Oil |
| West Tisbury Generating Facility | Vineyard Reliability LLC | West Tisbury, MA | ISO New England (ISNE) | 1.8 GWh | Dec 1974 | Dec 2023 | Distillate Fuel Oil |
| Signature Breads Chelsea | JDC 65R Owner, LLC | Chelsea, MA | ISO New England (ISNE) | 2.0 MWh | Apr 2019 | Dec 2023 | Distillate Fuel Oil |
| IXYS - Beverly | IXYS Integrated Circuits Division, LLC | Beverly, MA | ISO New England (ISNE) | 23.0 MWh | Dec 1996 | Dec 2023 | Distillate Fuel Oil : 58.5% Natural Gas : 41.5% |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 64.2 GWh | Oct 1981 | Jan 2025 | Distillate Fuel Oil : 73.9% Natural Gas : 26.1% |
| Cherry Street | Town of Hudson - (MA) | Hudson, MA | ISO New England (ISNE) | 417.0 MWh | Apr 1951 | Dec 2023 | Distillate Fuel Oil : 73.9% Natural Gas : 26.1% |
| Outer Cape Community Battery | Eversource | Provincetown, MA | ISO New England (ISNE) | 49.0 MWh | Nov 2022 | Jan 2025 | Electricity used for energy storage |
| M Street Jet | Massachusetts Bay Trans Auth | Boston, MA | ISO New England (ISNE) | 275.0 MWh | Apr 1979 | Dec 2023 | Kerosene |
| Granby LFG | Industrial Power Services Corp. | Granby, MA | ISO New England (ISNE) | 2.9 GWh | Aug 2001 | Dec 2023 | Landfill Gas |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 30.7 GWh | Sep 2007 | Dec 2023 | Landfill Gas |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 14.1 GWh | Jan 2004 | Dec 2023 | Landfill Gas |
| GRS Fall River | Gas Recovery Systems Inc | Fall River, MA | ISO New England (ISNE) | 121.0 MWh | Jun 2000 | Dec 2022 | Landfill Gas |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 8.1 GWh | Aug 1997 | Dec 2023 | Landfill Gas |
| Southbridge Landfill Gas-to-Energy | Southbridge Recycling and Disposal Park | Southbridge, MA | ISO New England (ISNE) | 11.7 GWh | Sep 2011 | Dec 2023 | Landfill Gas |
| Greater New Bedford LFG Utiliz. Facility | CommonWealth New Bedford Energy LLC | New Bedford, MA | ISO New England (ISNE) | 19.9 GWh | Sep 2005 | Dec 2023 | Landfill Gas |
| Mystic Generating Station | Constellation Mystic Power LLC | Charlestown, MA | ISO New England (ISNE) | 1.8 TWh | May 1969 | Mar 2024 | Natural Gas |
| Rousselot Inc | Rousselot Inc | Peabody, MA | ISO New England (ISNE) | 15.0 GWh | Apr 1947 | Nov 2023 | Natural Gas |
| Norton Powerhouse 2 | Norton Powerhouse 2 | Worcester, MA | ISO New England (ISNE) | 28.9 GWh | Oct 2022 | Dec 2023 | Natural Gas |
| CoreSite - Somerville | Bloom Energy | Somerville, MA | ISO New England (ISNE) | 29.8 GWh | Aug 2020 | Dec 2023 | Natural Gas |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 609.1 GWh | Jun 1993 | Dec 2023 | Natural Gas |
| Clark University | Clark University | Worcester, MA | ISO New England (ISNE) | 8.6 GWh | Dec 2012 | Dec 2023 | Natural Gas |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 210.3 GWh | Feb 1993 | Dec 2023 | Natural Gas |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 204.5 GWh | May 1995 | Dec 2023 | Natural Gas |
| One Patriot | Bloom Energy | Foxborough, MA | ISO New England (ISNE) | 13.1 GWh | Nov 2019 | Dec 2023 | Natural Gas |
| Dighton Power Plant | Dighton Power, LLC | Dighton, MA | ISO New England (ISNE) | 358.4 GWh | Apr 1999 | Dec 2023 | Natural Gas |
| Wellesley College Central Utility Plant | Wellesley College | Wellesley, MA | ISO New England (ISNE) | 480.2 MWh | May 1985 | Dec 2023 | Natural Gas |
| West Groton CHP | Hollingsworth & Vose Co West Groton | Groton, MA | ISO New England (ISNE) | 19.6 GWh | Nov 2015 | Dec 2023 | Natural Gas |
| Bridgewater Complex Co-Generation Plant | Massachusetts Department of Correction | Bridgewater, MA | ISO New England (ISNE) | 8.6 GWh | Oct 2015 | Dec 2023 | Natural Gas |
| Smith College Central Heating Plant | The Trustees of Smith College | Northampton, MA | ISO New England (ISNE) | 15.1 GWh | Sep 2008 | Dec 2023 | Natural Gas |
| Equinix - Billerica | Bloom Energy | Billerica, MA | ISO New England (ISNE) | 16.8 GWh | Aug 2021 | Dec 2023 | Natural Gas |
| Salem Harbor Power Development LP | Salem Harbor Power Development LP | Salem, MA | ISO New England (ISNE) | 1.1 TWh | Apr 2018 | Jan 2025 | Natural Gas |
| Centech Gas Generator | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 340.0 MWh | Mar 2019 | Dec 2023 | Natural Gas |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 2.0 TWh | May 2001 | Jan 2025 | Natural Gas |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 2.7 TWh | Oct 2002 | Jan 2025 | Natural Gas |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 520.6 GWh | Mar 2001 | Dec 2024 | Natural Gas |
| Berkshire Power | Berkshire Power Co LLC | Agawam, MA | ISO New England (ISNE) | 70.1 GWh | Aug 1999 | Dec 2023 | Natural Gas |
| Boston Medical Center CHP Plant | Boston Medical Center | Boston, MA | ISO New England (ISNE) | 12.1 GWh | Mar 2017 | Dec 2023 | Natural Gas |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 305.7 GWh | May 1968 | Jan 2025 | Natural Gas : 73.1% Residual Fuel Oil : 24.1% Distillate Fuel Oil : 2.7% |
| High Street Station | Town of Ipswich - (MA) | Ipswich, MA | ISO New England (ISNE) | 28.0 MWh | May 1937 | Dec 2023 | Natural Gas : 75.8% Distillate Fuel Oil : 24.2% |
| Waters River | City of Peabody - (MA) | Peabody, MA | ISO New England (ISNE) | 4.3 GWh | Nov 1971 | Dec 2023 | Natural Gas : 76.6% Distillate Fuel Oil : 23.4% |
| Bellingham Cogeneration Facility | Northeast Energy Associates LP | Bellingham, MA | ISO New England (ISNE) | 102.2 GWh | Aug 1991 | Nov 2023 | Natural Gas : 88.2% Distillate Fuel Oil : 11.8% |
| Potter Station 2 | Town of Braintree - (MA) | Braintree, MA | ISO New England (ISNE) | 32.3 GWh | Jun 1963 | Dec 2023 | Natural Gas : 88.2% Distillate Fuel Oil : 11.8% |
| Williams College - Campus CHP | President & Trustees of Williams College | Williamstown, MA | ISO New England (ISNE) | 2.0 GWh | Feb 2003 | Dec 2023 | Natural Gas : 93.7% Distillate Fuel Oil : 6.3% |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 29.7 GWh | Jun 1990 | Jan 2025 | Natural Gas : 95.3% Distillate Fuel Oil : 4.7% |
| Cleary Flood Hybrid | City of Taunton | Taunton, MA | ISO New England (ISNE) | 49.6 GWh | May 1966 | Dec 2023 | Natural Gas : 95.5% Distillate Fuel Oil : 4.5% |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | North Weymouth, MA | ISO New England (ISNE) | 3.3 TWh | Jul 2003 | Jan 2025 | Natural Gas : 96.0% Distillate Fuel Oil : 4.0% |
| Univ of Massachusetts Medical Center | University of Massachusetts Medical | Worcester, MA | ISO New England (ISNE) | 68.1 GWh | Mar 1974 | Dec 2023 | Natural Gas : 97.4% Residual Fuel Oil : 2.4% |
| Exelon West Medway II LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 208.8 GWh | Feb 2019 | Jan 2025 | Natural Gas : 98.1% Kerosene : 1.9% |
| Erving Paper Mills | Erving Paper Mills Inc | Erving, MA | ISO New England (ISNE) | 42.8 GWh | Nov 2013 | Jan 2025 | Natural Gas : 98.5% Distillate Fuel Oil : 1.5% |
| Dartmouth Power Associates LP | Morris Energy Operations Company, LLC | Dartmouth, MA | ISO New England (ISNE) | 34.8 GWh | Feb 1992 | Dec 2023 | Natural Gas : 99.0% Distillate Fuel Oil : 1.0% |
| Kendall Square Station | Kendall Green Energy, LLC | Cambridge, MA | ISO New England (ISNE) | 1.6 TWh | May 1949 | Jan 2025 | Natural Gas : 99.0% Distillate Fuel Oil : 1.0% |
| Amherst College Co Gen | Amherst College | Amherst, MA | ISO New England (ISNE) | 5.2 GWh | Oct 2006 | Dec 2023 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 338.6 GWh | Dec 1979 | Dec 2023 | Natural Gas : 99.7% |
| Gillette SBMC | The Gillette Company | Boston, MA | ISO New England (ISNE) | 60.6 GWh | Jan 1971 | Jan 2025 | Natural Gas : 99.9% |
| SEMASS Resource Recovery | SEMASS Partnership | West Wareham, MA | ISO New England (ISNE) | 563.9 GWh | Jun 1988 | Jan 2025 | Non-biogenic Municipal Solid Waste : 54.1% Biogenic Municipal Solid Waste : 44.3% Natural Gas : 1.6% |
| Covanta Haverhill | Ogden Projects Inc-Haverhill | Haverhill, MA | ISO New England (ISNE) | 343.0 GWh | Apr 1989 | Jan 2025 | Non-biogenic Municipal Solid Waste : 54.8% Biogenic Municipal Solid Waste : 44.9% |
| Wheelabrator Millbury Facility | Wheelabrator Environmental Systems | Millbury, MA | ISO New England (ISNE) | 319.2 GWh | Aug 1987 | Jan 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) | 240.3 GWh | Apr 1985 | Jan 2025 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Wheelabrator Saugus | Wheelabrator Environmental Systems | Saugus, MA | ISO New England (ISNE) | 228.9 GWh | Jul 1985 | Jan 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) | 36.0 GWh | Jul 1995 | Jan 2025 | Other Biomass Gas : 76.0% Distillate Fuel Oil : 13.4% Water : 6.8% Wind : 2.1% Solar : 1.8% |
| Syncarpha Puddon II Hybrid CSG | Syncarpha Puddon II, LLC | Northbridge, MA | ISO New England (ISNE) | 9.3 GWh | Feb 2021 | Dec 2022 | Solar |
| Granby Solar, LLC CSG | Granby Solar, LLC | Granby, MA | ISO New England (ISNE) | 5.6 GWh | Jun 2021 | Dec 2023 | Solar |
| Syncarpha Tewksbury Hybrid CSG | Syncarpha Tewksbury, LLC | Tewksbury, MA | ISO New England (ISNE) | 4.1 GWh | Jan 2022 | Dec 2023 | Solar |
| Randall Solar Project Hybrid | AES Distributed Energy | Berlin, MA | ISO New England (ISNE) | 8.7 GWh | Jun 2021 | Dec 2023 | Solar |
| Syncarpha Puddon I Hybrid CSG | Syncarpha Puddon I, LLC | Northbridge, MA | ISO New England (ISNE) | 8.9 GWh | Feb 2021 | Dec 2022 | Solar |
| Dudley River 2 Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2023 | Solar |
| St. Joseph's Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2023 | Solar |
| Boutillier Solar, LLC CSG | 38 Degrees North, LLC | Leicester, MA | ISO New England (ISNE) | 4.7 GWh | Mar 2018 | Dec 2023 | Solar |
| Syncarpha Westminster Hybrid CSG | Syncarpha Westminster, LLC | Westminster, MA | ISO New England (ISNE) | 6.4 GWh | Oct 2022 | Dec 2023 | Solar |
| Syncarpha Millbury Hybrid (CSG) | Syncarpha Millbury, LLC | Millbury, MA | ISO New England (ISNE) | 7.8 GWh | Sep 2022 | Dec 2023 | Solar |
| Syncarpha Blandford Hybrid CSG | Syncarpha Blandford, LLC | Blandford, MA | ISO New England (ISNE) | 8.1 GWh | Nov 2019 | Dec 2023 | Solar |
| Annese Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 7.0 GWh | Nov 2020 | Dec 2023 | Solar |
| ISM Solar Dighton 2, LLC CSG | 38 Degrees North, LLC | Dighton, MA | ISO New England (ISNE) | 3.7 GWh | Nov 2017 | Dec 2023 | Solar |
| Cherry Valley Solar, LLC CSG | 38 Degrees North, LLC | Leicester, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2023 | Solar |
| Barton Acres Solar, LLC CSG | 38 Degrees North, LLC | Phillipston, MA | ISO New England (ISNE) | 1.7 GWh | Sep 2017 | Dec 2023 | Solar |
| Blair Wire Village Solar, LLC CSG | 38 Degrees North, LLC | Spencer, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2017 | Dec 2023 | Solar |
| GSPP Devens, LLC | Green Street Power Partners | Ayer, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2018 | Dec 2023 | Solar |
| Wilbur Woods Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 8.1 GWh | Aug 2021 | Dec 2023 | Solar |
| Tolland Solar NG LLC | NuGen Capital Management | Tolland, MA | ISO New England (ISNE) | 4.8 GWh | Sep 2014 | Dec 2023 | Solar |
| Tanglewood Circle Solar 1 LLC | Tanglewood Circle Solar 1 LLC | Becket, MA | ISO New England (ISNE) | 7.3 GWh | Oct 2018 | Dec 2023 | Solar |
| Ledeaux Solar, LLC CSG | 38 Degrees North, LLC | North Brookfield, MA | ISO New England (ISNE) | 1.4 GWh | Oct 2017 | Dec 2023 | Solar |
| Washburn Road Solar | REA Investments, LLC | Freetown, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2018 | Dec 2023 | Solar |
| Happy Hollow CSG Hybrid | REA Investments, LLC | Winchendon, MA | ISO New England (ISNE) | 8.0 GWh | Sep 2019 | Dec 2023 | Solar |
| CED Northampton Solar LLC Hybrid | Consolidated Edison Development Inc. | Northampton, MA | ISO New England (ISNE) | 6.5 GWh | Nov 2019 | Dec 2023 | Solar |
| Hopkinton CSG | Altus Power America Management, LLC | Hopkinton, MA | ISO New England (ISNE) | 2.7 GWh | Mar 2019 | Dec 2023 | Solar |
| Carver CSG | Altus Power America Management, LLC | Carver, MA | ISO New England (ISNE) | 1.7 GWh | Apr 2019 | Dec 2023 | Solar |
| Dudley River Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.7 GWh | Oct 2017 | Dec 2023 | Solar |
| GSPP Terrawatt Westfield LLC CSG | Green Street Power Partners | Westfield, MA | ISO New England (ISNE) | 5.9 GWh | Jan 2019 | Dec 2023 | Solar |
| GSPP Raynham TMLP, LLC CSG | Green Street Power Partners | Raynham, MA | ISO New England (ISNE) | 3.7 GWh | Jan 2019 | Dec 2023 | Solar |
| Ajax Solar, LLC (MA) | Green Street Power Partners | West Bridgewater, MA | ISO New England (ISNE) | 4.2 GWh | Nov 2017 | Dec 2023 | Solar |
| Nextsun Energy Littleton | Greenbacker Renewable Energy Corporation | Littleton, MA | ISO New England (ISNE) | 5.2 GWh | Sep 2013 | Dec 2023 | Solar |
| Gardner - Otter River Road | Otter River Road Solar LLC | Gardner, MA | ISO New England (ISNE) | 3.9 GWh | Sep 2019 | Dec 2023 | Solar |
| GSPP Boxborough Littleton (MA) | GSPP Boxborough Littleton, LLC | Boxborough, MA | ISO New England (ISNE) | 5.2 GWh | Dec 2018 | Dec 2023 | Solar |
| DG Haverhill CSG | DG Haverhill | Haverhill, MA | ISO New England (ISNE) | 1.6 GWh | Aug 2017 | Dec 2023 | Solar |
| Kearsarge Gill | Kearsarge Gill LLC | Gill, MA | ISO New England (ISNE) | 2.8 GWh | Dec 2017 | Dec 2023 | Solar |
Browse Power Plants By Massachusetts Counties
Figures are based on January 2025 generation numbers.| County | State Rank | Active Plants | Jan 2025 Generation |
|---|---|---|---|
| Norfolk County, MA | # 1 | 36 | 6.4 TWh |
| Worcester County, MA | # 2 | 188 | 3.9 TWh |
| Middlesex County, MA | # 3 | 65 | 3.8 TWh |
| Essex County, MA | # 4 | 37 | 2.1 TWh |
| Hampden County, MA | # 5 | 84 | 1.4 TWh |
| Plymouth County, MA | # 6 | 73 | 839.2 GWh |
| Bristol County, MA | # 7 | 68 | 674.2 GWh |
| County | State Rank | Active Plants | Jan 2025 Generation |
|---|---|---|---|
| Suffolk County, MA | # 8 | 13 | 453.8 GWh |
| Franklin County, MA | # 9 | 31 | 416.5 GWh |
| Barnstable County, MA | # 10 | 21 | 370.9 GWh |
| Hampshire County, MA | # 11 | 35 | 139.7 GWh |
| Berkshire County, MA | # 12 | 37 | 72.7 GWh |
| Dukes County, MA | # 13 | 7 | 7.9 GWh |