Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Southwick Solar PV | NSTAR Electric Company | Southwick, MA | ISO New England (ISNE) | 8.2 GWh | Dec 2018 | Aug 2024 | Solar |
| Wilmarth Solar | Wilmarth Lane Solar 1, LLC | Plainville, MA | ISO New England (ISNE) | 8.3 GWh | Jan 2020 | Dec 2023 | Solar |
| Clark Road Solar 1, LLC | Clark Road Solar 1, LLC | Gardner, MA | ISO New England (ISNE) | 8.3 GWh | Nov 2020 | Dec 2023 | Solar |
| West Haydenville PJ Community Solar | AES Distributed Energy | Williamsburg, MA | ISO New England (ISNE) | 8.3 GWh | Aug 2022 | Dec 2023 | Solar |
| Syncarpha Northbridge II Hybrid CSG | Syncarpha Northbridge II, LLC | Whitinsville, MA | ISO New England (ISNE) | 8.3 GWh | Mar 2021 | Dec 2023 | Solar |
| BWC Lake Lashaway, LLC Hybrid | AES Distributed Energy | North Brookfield, MA | ISO New England (ISNE) | 8.3 GWh | Apr 2021 | Dec 2023 | Solar |
| Blacksmith Road Solar 1 | Blacksmith Road Solar 1, LLC | Falmouth, MA | ISO New England (ISNE) | 8.4 GWh | Nov 2021 | Dec 2023 | Solar |
| Woodland Avenue Solar 1 | Woodland Avenue Solar 1, LLC | Seekonk, MA | ISO New England (ISNE) | 8.4 GWh | Jul 2020 | Dec 2023 | Solar |
| Adirondack A+B Community Solar Garden | BWC Connecticut River LLC | Westport, MA | ISO New England (ISNE) | 8.5 GWh | Nov 2018 | Dec 2023 | Solar |
| West Street Solar 1 LLC | AES Distributed Energy | Gardner, MA | ISO New England (ISNE) | 8.5 GWh | Nov 2019 | Dec 2023 | Solar |
| Dartmouth | Mass Solar, LLC | Dartmouth, MA | ISO New England (ISNE) | 8.5 GWh | Mar 2014 | Dec 2023 | Solar |
| Clark University | Clark University | Worcester, MA | ISO New England (ISNE) | 8.6 GWh | Dec 2012 | 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 |
| Syncarpha Northbridge I Hybrid(CSG) | Syncarpha Northbridge I, LLC | Whitinsville, MA | ISO New England (ISNE) | 8.6 GWh | Nov 2021 | Dec 2023 | Solar |
| Randall Solar Project Hybrid | AES Distributed Energy | Berlin, MA | ISO New England (ISNE) | 8.7 GWh | Jun 2021 | Dec 2023 | Solar |
| Worcester Landfill | City of Worcester DPW | Worcester, MA | ISO New England (ISNE) | 8.8 GWh | Apr 2017 | 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 |
| Blodgett Solar CSG | Blodgett Street Solar 1, LLC | Tyngsboro, MA | ISO New England (ISNE) | 9.1 GWh | Jul 2021 | Dec 2023 | Solar |
| Syncarpha Puddon II Hybrid CSG | Syncarpha Puddon II, LLC | Northbridge, MA | ISO New England (ISNE) | 9.3 GWh | Feb 2021 | Dec 2022 | Solar |
| Holiday Hill Community Wind | Greenbacker Renewable Energy Corporation | Russell, MA | ISO New England (ISNE) | 9.5 GWh | Nov 2019 | Dec 2023 | Wind |
| MA Military Reservation Wind Project | Air Force Civil Engineer Center | Otis ANG Base Bourne, MA | ISO New England (ISNE) | 9.7 GWh | Nov 2009 | Dec 2023 | Wind |
| Old Middleboro Road Solar | Agilitas Energy, Inc. | Rochester, MA | ISO New England (ISNE) | 9.7 GWh | Dec 2022 | Dec 2023 | Solar |
| 160 Tihonet Rd Hybrid(CSG) | 160TIH WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 9.8 GWh | Nov 2021 | Dec 2023 | Solar |
| Dwight | Central Rivers Power MA, LLC | Chicopee, MA | ISO New England (ISNE) | 9.8 GWh | Dec 1919 | Dec 2023 | Water |
| Redbrook Community Solar 1 | Redbrook Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 9.9 GWh | Sep 2017 | Dec 2023 | Solar |
| Dunstable Solar 1, LLC | AES Distributed Energy | Dunstable, MA | ISO New England (ISNE) | 10.5 GWh | Mar 2021 | Dec 2023 | Solar : 98.9% Electricity used for energy storage : 1.1% |
| Cobble Mountain | City of Holyoke Gas and Electric Dept. | Granville, MA | ISO New England (ISNE) | 10.5 GWh | Dec 1929 | Dec 2023 | Water |
| Indian Orchard | Central Rivers Power MA, LLC | Indian Orchard, MA | ISO New England (ISNE) | 10.6 GWh | Dec 1927 | Dec 2023 | Water |
| 77 Farm to Market Rd Hybrid(CSG) | 77F2M WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 11.0 GWh | Nov 2021 | Dec 2023 | Solar |
| Stafford St Solar 1 CSG | Stafford St Solar 1, LLC | Leicester, MA | ISO New England (ISNE) | 11.6 GWh | Nov 2017 | Dec 2023 | Solar |
| 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 |
| Oakdale Power Station | Massachusetts Water Res Auth | West Boylston, MA | ISO New England (ISNE) | 12.0 GWh | Apr 1951 | Dec 2023 | Water |
| Bullock Road Solar 1 | Bullock Road Solar 1, LLC | Freetown, MA | ISO New England (ISNE) | 12.1 GWh | Jun 2018 | Dec 2023 | Solar |
| Boston Medical Center CHP Plant | Boston Medical Center | Boston, MA | ISO New England (ISNE) | 12.1 GWh | Mar 2017 | Dec 2023 | Natural Gas |
| Future Generation Wind | Consolidated Edison Solutions Inc. | Plymouth, MA | ISO New England (ISNE) | 12.2 GWh | Jul 2016 | Dec 2023 | Wind |
| 59 Federal Rd(CSG) | 59FED WHAM8 Solar, LLC | Carver, MA | ISO New England (ISNE) | 12.8 GWh | Oct 2021 | Dec 2023 | Solar |
| One Patriot | Bloom Energy | Foxborough, MA | ISO New England (ISNE) | 13.1 GWh | Nov 2019 | Dec 2023 | Natural Gas |
| Turners Falls | FirstLight Power Resources, Inc. - MA | Montague, MA | ISO New England (ISNE) | 13.9 GWh | Dec 1904 | Dec 2023 | Water |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 14.1 GWh | Jan 2004 | Dec 2023 | Landfill Gas |
| Rousselot Inc | Rousselot Inc | Peabody, MA | ISO New England (ISNE) | 15.0 GWh | Apr 1947 | Nov 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 |
| Federal Road Solar 1, LLC CSG | Federal Road Solar 1, LLC | South Carver, MA | ISO New England (ISNE) | 16.5 GWh | Nov 2015 | Dec 2023 | Solar |
| Equinix - Billerica | Bloom Energy | Billerica, MA | ISO New England (ISNE) | 16.8 GWh | Aug 2021 | Dec 2023 | Natural Gas |
| Barrett PV | MN8 Energy LLC | Oxford, MA | ISO New England (ISNE) | 17.2 GWh | Oct 2016 | Dec 2023 | Solar |
| Redbridge | Central Rivers Power MA, LLC | Wilbraham, MA | ISO New England (ISNE) | 17.7 GWh | Dec 1925 | Aug 2023 | Water |
| Gardners Falls | Central Rivers Power MA, LLC | Buckland, MA | ISO New England (ISNE) | 17.7 GWh | Dec 1913 | Dec 2023 | Water |
| West Groton CHP | Hollingsworth & Vose Co West Groton | Groton, MA | ISO New England (ISNE) | 19.6 GWh | Nov 2015 | Dec 2023 | Natural 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 |
| Boatlock | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 21.3 GWh | Dec 1920 | Dec 2023 | Water |
| Putts Bridge | Central Rivers Power MA, LLC | Ludlow, MA | ISO New England (ISNE) | 22.2 GWh | Dec 1917 | Dec 2023 | Water |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 26.3 GWh | Oct 1981 | Aug 2024 | Distillate Fuel Oil : 98.4% Natural Gas : 1.6% |
| Norton Powerhouse 2 | Norton Powerhouse 2 | Worcester, MA | ISO New England (ISNE) | 28.9 GWh | Oct 2022 | Dec 2023 | Natural Gas |
| Deerfield 4 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 29.0 GWh | Jul 1912 | Dec 2023 | Water |
| CoreSite - Somerville | Bloom Energy | Somerville, MA | ISO New England (ISNE) | 29.8 GWh | Aug 2020 | Dec 2023 | Natural Gas |
| Fitchburg Gas Recovery | WM Renewable Energy LLC | Westminster, MA | ISO New England (ISNE) | 30.7 GWh | Sep 2007 | Dec 2023 | Landfill Gas |
| Berkshire Wind Power Project | Massachusetts Mun Wholes Electric Co | Lanesboro, MA | ISO New England (ISNE) | 31.6 GWh | Apr 2011 | Aug 2024 | Wind |
| 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% |
| Fife Brook | Bear Swamp Power Company LLC | Florida, MA | ISO New England (ISNE) | 33.4 GWh | Sep 1974 | Dec 2023 | Water |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 33.7 GWh | Jun 1990 | Aug 2024 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| Deerfield 3 | Great River Hydro, LLC | Buckland, MA | ISO New England (ISNE) | 34.4 GWh | Jul 1912 | Dec 2023 | Water |
| 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% |
| Sherman | Great River Hydro, LLC | Rowe, MA | ISO New England (ISNE) | 35.5 GWh | Nov 1926 | Dec 2023 | Water |
| NE Renewable Fitchburg, LLC | NE Renewable Fitchburg, LLC | Westminster, MA | ISO New England (ISNE) | 36.4 GWh | Jul 1992 | Dec 2023 | Wood/Wood Waste Solids : 97.6% Natural Gas : 2.4% |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 37.5 GWh | Jul 1995 | Aug 2024 | Other Biomass Gas : 70.5% Distillate Fuel Oil : 16.1% Water : 10.2% Solar : 1.6% Wind : 1.6% |
| Deerfield 2 | Great River Hydro, LLC | Conway, MA | ISO New England (ISNE) | 39.4 GWh | Jul 1913 | Dec 2023 | Water |
| Riverside Holyoke | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 40.4 GWh | Dec 1905 | Dec 2023 | Water |
| Erving Paper Mills | Erving Paper Mills Inc | Erving, MA | ISO New England (ISNE) | 42.2 GWh | Nov 2013 | Aug 2024 | Natural Gas : 98.5% Distillate Fuel Oil : 1.5% |
| 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% |
| Boott Hydropower | Boott Hydro, LLC - Hybrid | Lowell, MA | ISO New England (ISNE) | 55.7 GWh | Sep 1985 | Dec 2022 | Water |
| Gillette SBMC | The Gillette Company | Boston, MA | ISO New England (ISNE) | 61.0 GWh | Jan 1971 | Aug 2024 | Natural Gas : 99.9% |
| New England Wind LLC | Avangrid Renewables LLC | Florida, MA | ISO New England (ISNE) | 62.1 GWh | Nov 2012 | Aug 2024 | Wind |
| Deerfield 5 | Great River Hydro, LLC | Florida, MA | ISO New England (ISNE) | 63.1 GWh | Sep 1974 | Dec 2023 | Water |
| 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% |
| Berkshire Power | Berkshire Power Co LLC | Agawam, MA | ISO New England (ISNE) | 70.1 GWh | Aug 1999 | Dec 2023 | Natural Gas |
| SJA Solar LLC-Solterra Monastery CSG | SJA Solar, LLC | Spencer, MA | ISO New England (ISNE) | 72.5 GWh | Nov 2016 | Dec 2023 | Solar |
| Lawrence Hydroelectric Associates | Central Rivers Power US, LLC | Lawrence, MA | ISO New England (ISNE) | 94.2 GWh | Jun 1981 | Dec 2023 | Water |
| 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% |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 201.6 GWh | May 1968 | Aug 2024 | Natural Gas : 77.7% Residual Fuel Oil : 21.1% Distillate Fuel Oil : 1.2% |
| 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 |
| Exelon West Medway II LLC | Constellation Power, Inc | Medway, MA | ISO New England (ISNE) | 210.2 GWh | Feb 2019 | Aug 2024 | Natural Gas : 99.6% |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 210.3 GWh | Feb 1993 | Dec 2023 | Natural Gas |
| Hadley Falls | City of Holyoke Gas and Electric Dept. | Holyoke, MA | ISO New England (ISNE) | 218.2 GWh | Dec 1951 | Dec 2023 | Water |
| Wheelabrator Saugus | Wheelabrator Environmental Systems | Saugus, MA | ISO New England (ISNE) | 225.3 GWh | Jul 1985 | Aug 2024 | 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) | 240.6 GWh | Apr 1985 | Aug 2024 | 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) | 319.9 GWh | Aug 1987 | Aug 2024 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 338.6 GWh | Dec 1979 | Dec 2023 | Natural Gas : 99.7% |
| Covanta Haverhill | Ogden Projects Inc-Haverhill | Haverhill, MA | ISO New England (ISNE) | 342.0 GWh | Apr 1989 | Aug 2024 | Non-biogenic Municipal Solid Waste : 54.9% Biogenic Municipal Solid Waste : 44.9% |
| Dighton Power Plant | Dighton Power, LLC | Dighton, MA | ISO New England (ISNE) | 358.4 GWh | Apr 1999 | Dec 2023 | Natural Gas |
| Cabot | FirstLight Power Resources, Inc. - MA | Montague, MA | ISO New England (ISNE) | 394.4 GWh | Dec 1914 | Dec 2023 | Water |
| SEMASS Resource Recovery | SEMASS Partnership | West Wareham, MA | ISO New England (ISNE) | 567.6 GWh | Jun 1988 | Aug 2024 | Non-biogenic Municipal Solid Waste : 54.2% Biogenic Municipal Solid Waste : 44.4% Natural Gas : 1.3% |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 609.1 GWh | Jun 1993 | Dec 2023 | Natural Gas |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 809.4 GWh | Mar 2001 | Aug 2024 | Natural Gas |
| Salem Harbor Power Development LP | Salem Harbor Power Development LP | Salem, MA | ISO New England (ISNE) | 1.0 TWh | Apr 2018 | Aug 2024 | Natural Gas |
| Kendall Square Station | Kendall Green Energy, LLC | Cambridge, MA | ISO New England (ISNE) | 1.6 TWh | May 1949 | Aug 2024 | Natural Gas : 99.8% |
| Mystic Generating Station | Constellation Mystic Power LLC | Charlestown, MA | ISO New England (ISNE) | 1.8 TWh | May 1969 | Mar 2024 | Natural Gas |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 2.2 TWh | May 2001 | Aug 2024 | Natural Gas |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 2.6 TWh | Oct 2002 | Aug 2024 | Natural Gas |
| Fore River Generating Station | Calpine Fore River Energy Center, LLC | North Weymouth, MA | ISO New England (ISNE) | 2.8 TWh | Jul 2003 | Aug 2024 | Natural Gas : 99.8% |
Browse Power Plants By Massachusetts Counties
Figures are based on December 2023 generation numbers.| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Dukes County, MA | # 13 | 7 | 7.9 GWh |
| Berkshire County, MA | # 12 | 37 | 58.0 GWh |
| Hampshire County, MA | # 11 | 35 | 139.7 GWh |
| Barnstable County, MA | # 10 | 21 | 268.8 GWh |
| Suffolk County, MA | # 9 | 13 | 455.9 GWh |
| Franklin County, MA | # 8 | 31 | 500.0 GWh |
| Bristol County, MA | # 7 | 68 | 674.3 GWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Plymouth County, MA | # 6 | 73 | 849.2 GWh |
| Hampden County, MA | # 5 | 84 | 1.3 TWh |
| Essex County, MA | # 4 | 37 | 2.1 TWh |
| Middlesex County, MA | # 3 | 65 | 3.8 TWh |
| Worcester County, MA | # 2 | 188 | 4.4 TWh |
| Norfolk County, MA | # 1 | 36 | 5.9 TWh |