Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Rousselot Inc | Rousselot Inc | Peabody, MA | ISO New England (ISNE) | 16.2 GWh | Apr 1947 | Nov 2023 | Natural Gas |
| Rounseville Solar | Rounseville Solar 1, LLC | Rochester, MA | ISO New England (ISNE) | 4.5 GWh | Jan 2020 | Dec 2023 | Solar |
| Redbrook Community Solar 1 | Redbrook Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 10.3 GWh | Sep 2017 | Dec 2023 | Solar |
| Happy Hollow CSG Hybrid | REA Investments, LLC | Winchendon, MA | ISO New England (ISNE) | 8.3 GWh | Sep 2019 | Dec 2023 | Solar |
| Washburn Road Solar | REA Investments, LLC | Freetown, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2018 | Dec 2023 | Solar |
| Williams College - Campus CHP | President & Trustees of Williams College | Williamstown, MA | ISO New England (ISNE) | 2.3 GWh | Feb 2003 | Dec 2023 | Natural Gas : 94.1% Distillate Fuel Oil : 5.9% |
| Berkshire 1 | PPS Berkshire Solar LLC | Sheffield, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2011 | Dec 2023 | Solar |
| Pleasantdale Road Community Solar | Pleasantdale Road Solar, LLC | Rutland, MA | ISO New England (ISNE) | 1.4 GWh | Aug 2017 | Dec 2023 | Solar |
| Plainfield Community Solar LLC | Plainfield Solar LLC | Plainfield, MA | ISO New England (ISNE) | 2.7 GWh | Jan 2019 | Dec 2023 | Solar |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 24.8 GWh | Jun 1990 | Jun 2024 | Natural Gas : 99.1% Distillate Fuel Oil : 0.9% |
| Peterson Road Solar | Peterson Road Solar, LLC | Palmer, MA | ISO New England (ISNE) | 4.4 GWh | Mar 2017 | Dec 2023 | Solar |
| Partridgeville Hybrid CSG | Partridgeville Road Solar 1, LLC | Athol, MA | ISO New England (ISNE) | 6.1 GWh | Dec 2019 | Dec 2022 | Solar |
| Palmer Solar LLC | Palmer Solar LLC | Palmer, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2013 | Dec 2022 | Solar |
| Gardner - Otter River Road | Otter River Road Solar LLC | Gardner, MA | ISO New England (ISNE) | 4.1 GWh | Sep 2019 | Dec 2023 | Solar |
| MA Solar Storage 1 Hybrid | Origis Energy USA, Inc | Sterling, MA | ISO New England (ISNE) | 1.3 GWh | Feb 2018 | Dec 2023 | Solar |
| Onyx - Pembroke Landfill Solar | Onyx Asset Services Group | Pembroke, MA | ISO New England (ISNE) | 3.8 GWh | Nov 2017 | Dec 2023 | Solar |
| Onyx - Brockton Thatcher Landfill Solar CSG | Onyx Asset Services Group | Brockton, MA | ISO New England (ISNE) | 4.5 GWh | Oct 2017 | Dec 2023 | Solar |
| Winchendon Landfill Solar | Onyx Asset Services Group | Winchendon, MA | ISO New England (ISNE) | 3.1 GWh | Sep 2018 | Dec 2023 | Solar |
| Covanta Haverhill | Ogden Projects Inc-Haverhill | Haverhill, MA | ISO New England (ISNE) | 374.2 GWh | Apr 1989 | Jun 2024 | Non-biogenic Municipal Solid Waste : 54.9% Biogenic Municipal Solid Waste : 44.9% |
| Bourne (MA) - Holliston I | NVT LICENSES, LLC | Holliston, MA | ISO New England (ISNE) | 3.3 GWh | Nov 2014 | Dec 2023 | Solar |
| Halifax Solar | NuGen Capital Management | Halifax, MA | ISO New England (ISNE) | 4.1 GWh | Jul 2015 | Dec 2023 | Solar |
| Fairview Farms Solar | NuGen Capital Management | Whately, MA | ISO New England (ISNE) | 2.9 GWh | May 2014 | Dec 2023 | Solar |
| Old Wardour Solar | NuGen Capital Management | East Brookfield, MA | ISO New England (ISNE) | 7.2 GWh | Dec 2015 | Dec 2023 | Solar |
| Tolland Solar NG LLC | NuGen Capital Management | Tolland, MA | ISO New England (ISNE) | 5.0 GWh | Sep 2014 | Dec 2023 | Solar |
| 651 Chase Solar NG | NuGen Capital Management | Lunenburg, MA | ISO New England (ISNE) | 4.1 GWh | May 2014 | Dec 2023 | Solar |
| 580 River Solar | NuGen Capital Management | Winchendon, MA | ISO New England (ISNE) | 4.7 GWh | Aug 2018 | Dec 2023 | Solar |
| 265 Pleasant Solar NG, LLC | NuGen Capital Management | Lunenburg, MA | ISO New England (ISNE) | 1.4 GWh | Jun 2014 | Dec 2023 | Solar |
| Hadley Solar NG, LLC | NuGen Capital Management | Hadley, MA | ISO New England (ISNE) | 3.5 GWh | Jun 2014 | Dec 2023 | Solar |
| East Acres Solar NG, LLC | NuGen Capital Management | Pittsfield, MA | ISO New England (ISNE) | 5.0 GWh | Mar 2017 | Dec 2023 | Solar |
| 433 Purchase Solar NG, LLC | NuGen Capital Management | Swansea, MA | ISO New England (ISNE) | 4.0 GWh | Mar 2012 | Dec 2023 | Solar |
| 301 Chestnut Solar NG | NuGen Capital Management | East Longmeadow, MA | ISO New England (ISNE) | 2.5 GWh | Mar 2017 | Dec 2023 | Solar |
| Vuelta Solar | NuGen Capital Management | East Brookfield, MA | ISO New England (ISNE) | 7.2 GWh | Dec 2015 | Dec 2023 | Solar |
| Shuman Solar | NuGen Capital Management | Stoughton, MA | ISO New England (ISNE) | 2.3 GWh | Mar 2016 | Dec 2023 | Solar |
| East Springfield Solar PV | NSTAR Electric Company | Springfield, MA | ISO New England (ISNE) | 2.0 GWh | Sep 2018 | Dec 2023 | Solar |
| Plymouth Solar | NSTAR Electric Company | Plymouth, MA | ISO New England (ISNE) | 1.5 GWh | May 2018 | Dec 2023 | Solar |
| Lee Site 31 Solar | NSTAR Electric Company | Lee, MA | ISO New England (ISNE) | 2.4 GWh | Jul 2018 | Dec 2023 | Solar |
| Pittsfield 44 - M&W PV | NSTAR Electric Company | Pittsfield, MA | ISO New England (ISNE) | 1.6 GWh | Jul 2018 | Dec 2023 | Solar |
| Ludlow Site 72 - Conti | NSTAR Electric Company | Ludlow, MA | ISO New England (ISNE) | 2.4 GWh | Jul 2018 | Dec 2023 | Solar |
| Montague Site 36-Grosolar | NSTAR Electric Company | Millers Falls, MA | ISO New England (ISNE) | 6.2 GWh | Sep 2018 | Jun 2024 | Solar |
| Wareham Solar PV | NSTAR Electric Company | Wareham, MA | ISO New England (ISNE) | 1.4 GWh | Nov 2018 | Dec 2022 | Solar |
| East Longmeadow Solar PV | NSTAR Electric Company | East Longmeadow, MA | ISO New England (ISNE) | 6.1 GWh | Sep 2019 | Dec 2023 | Solar |
| Greenfield Solar PV | NSTAR Electric Company | Greenfield, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2018 | Dec 2023 | Solar |
| Hinsdale Solar PV | NSTAR Electric Company | Hinsdale, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2018 | Dec 2023 | Solar |
| Savoy Solar PV | NSTAR Electric Company | Savoy, MA | ISO New England (ISNE) | 3.2 GWh | Jan 2019 | Dec 2023 | Solar |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 2.7 GWh | Jan 2019 | Dec 2023 | Solar |
| Springfield Solar PV | NSTAR Electric Company | Springfield, MA | ISO New England (ISNE) | 6.4 GWh | Dec 2018 | Dec 2023 | Solar |
| Hampden Solar PV | NSTAR Electric Company | Hampden, MA | ISO New England (ISNE) | 5.3 GWh | Oct 2019 | Dec 2023 | Solar |
| Southwick Solar PV | NSTAR Electric Company | Southwick, MA | ISO New England (ISNE) | 9.1 GWh | Dec 2018 | Jun 2024 | Solar |
| Sunderland Solar PV | NSTAR Electric Company | Sunderland, MA | ISO New England (ISNE) | 1.7 GWh | Aug 2018 | Dec 2023 | Solar |
| Hatfield Solar PV | NSTAR Electric Company | Hatfield, MA | ISO New England (ISNE) | 5.7 GWh | Nov 2018 | Dec 2023 | Solar |
| Renew Canal 1 CSG LLC | NRG Renew Canal 1 LLC | Sandwich, MA | ISO New England (ISNE) | 1.9 GWh | May 2017 | Dec 2022 | Solar |
| Notus Wind 1 | Notus Clean Energy LLC | E. Falmouth, MA | ISO New England (ISNE) | 4.5 GWh | Jun 2010 | Dec 2023 | Wind |
| Norton Powerhouse 2 | Norton Powerhouse 2 | Worcester, MA | ISO New England (ISNE) | 7.1 GWh | Oct 2022 | Dec 2022 | Natural Gas |
| 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% |
| Upper Blackstone (MA) Treasure Valley | Nexamp Treasure Valley Solar, LLC | Rutland, MA | ISO New England (ISNE) | 7.1 GWh | Jun 2014 | Dec 2023 | Solar |
| Nexamp Peak CSG | Nexamp Peak, LLC | Hancock, MA | ISO New England (ISNE) | 2.2 GWh | Nov 2015 | Dec 2023 | Solar |
| Newton Rumford Landfill | Newton Municipal Solar LLC - Rumford | Newton, MA | ISO New England (ISNE) | 2.8 GWh | Jun 2017 | Dec 2023 | Solar |
| 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% |
| Seaboard Sheffield, LLC | Navisun LLC | Sheffield, MA | ISO New England (ISNE) | 2.8 GWh | Mar 2021 | Dec 2023 | Solar |
| Wareham MA 1 Community Solar | Navisun LLC | Wareham, MA | ISO New England (ISNE) | 3.3 GWh | Aug 2016 | Dec 2023 | Solar |
| Carver MA 1 Community Solar | Navisun LLC | Carver, MA | ISO New England (ISNE) | 2.9 GWh | Aug 2016 | Dec 2023 | Solar |
| BWC Rams Horn Channel LLC | Navisun LLC | Beverly, MA | ISO New England (ISNE) | 5.8 GWh | Nov 2020 | Dec 2023 | Solar |
| Seaboard Oxford, LLC | Navisun LLC | Oxford, MA | ISO New England (ISNE) | 2.7 GWh | Jul 2020 | Dec 2023 | Solar |
| Seaboard Charlton, LLC | Navisun LLC | Charlton, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2020 | Dec 2023 | Solar |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2012 | Dec 2023 | Solar |
| Freetown MA 1, LLC | Navisun LLC | Freetown, MA | ISO New England (ISNE) | 1.1 GWh | Nov 2022 | Dec 2023 | Solar |
| Acushnet MA 1 | Navisun LLC | Acushnet, MA | ISO New England (ISNE) | 59.0 MWh | Nov 2023 | Dec 2023 | Solar |
| Westport MA 2 Community Solar | Navisun LLC | Westport, MA | ISO New England (ISNE) | 1.9 GWh | Aug 2016 | Dec 2023 | Solar |
| Westport MA 1 Community Solar | Navisun LLC | Westport, MA | ISO New England (ISNE) | 2.3 GWh | Aug 2016 | Dec 2023 | Solar |
| West Brookfield Solar - Gilbertsville Rd (CSG) | Nautilus Solar Solutions | West Brookfield, MA | ISO New England (ISNE) | 6.2 GWh | May 2017 | Dec 2023 | Solar |
| Mashpee Landfill Solar | Nautilus Solar Solutions | Mashpee, MA | ISO New England (ISNE) | 2.4 GWh | Aug 2014 | Dec 2023 | Solar |
| Natick Mall | Natick Mall | Natick, MA | ISO New England (ISNE) | 2.4 GWh | Sep 2018 | Dec 2022 | Solar |
| Charlestown Wind Turbine | MWRA Charlestown | Charlestown, MA | ISO New England (ISNE) | 1.7 GWh | Sep 2011 | Dec 2022 | Wind |
| Mt. Tom Solar Project Hybrid | Mt. Tom Solar, LLC | Holyoke, MA | ISO New England (ISNE) | 6.7 GWh | Dec 2016 | Dec 2022 | Solar |
| Mt Wachusett Community College | Mt Wachusett Community College | Gardner, MA | ISO New England (ISNE) | 3.9 GWh | Feb 2011 | Jun 2024 | Wind |
| Dartmouth Power Associates LP | Morris Energy Operations Company, LLC | Dartmouth, MA | ISO New England (ISNE) | 62.0 GWh | Feb 1992 | Dec 2022 | Natural Gas : 96.3% Distillate Fuel Oil : 3.7% |
| Montague Road Solar | Montague Road Solar, LLC | Amherst, MA | ISO New England (ISNE) | 4.1 GWh | Nov 2019 | Dec 2023 | Solar |
| Monson Solar, LLC | Monson Solar, LLC | Monson, MA | ISO New England (ISNE) | 3.3 GWh | Jul 2017 | Dec 2023 | Solar |
| Deerfield CSG Solar | MN8 Energy LLC | Deerfield, MA | ISO New England (ISNE) | 5.8 GWh | Nov 2017 | Dec 2023 | Solar |
| Stone Hill Solar CSG | MN8 Energy LLC | North Easton, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2014 | Dec 2023 | Solar |
| Kenmare - Mansfield Branch Street | MN8 Energy LLC | Mansfield, MA | ISO New England (ISNE) | 2.4 GWh | May 2017 | Dec 2023 | Solar |
| Bridgewater Solar CSG | MN8 Energy LLC | Bridgewater, MA | ISO New England (ISNE) | 3.9 GWh | Jul 2015 | Dec 2023 | Solar |
| West Bridgewater AB CSG | MN8 Energy LLC | West Bridgewater, MA | ISO New England (ISNE) | 2.8 GWh | May 2017 | Dec 2023 | Solar |
| Holliston Solar CSG | MN8 Energy LLC | Holliston, MA | ISO New England (ISNE) | 1.5 GWh | Jun 2015 | Dec 2023 | Solar |
| Fairhaven C CSG | MN8 Energy LLC | Fairhaven, MA | ISO New England (ISNE) | 3.0 GWh | Apr 2017 | Dec 2023 | Solar |
| Wilmington Solar | MN8 Energy LLC | Wilmington, MA | ISO New England (ISNE) | 2.8 GWh | Oct 2015 | Dec 2023 | Solar |
| Fall River Solar CSG | MN8 Energy LLC | Fall River, MA | ISO New England (ISNE) | 2.8 GWh | Jan 2013 | Dec 2023 | Solar |
| Barrett PV | MN8 Energy LLC | Oxford, MA | ISO New England (ISNE) | 17.9 GWh | Oct 2016 | Dec 2023 | Solar |
| Grafton PV | MN8 Energy LLC | Grafton, MA | ISO New England (ISNE) | 4.3 GWh | Sep 2016 | Dec 2023 | Solar |
| Rockland Solar CSG | MN8 Energy LLC | Rockland, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2013 | Dec 2023 | Solar |
| Westford Solar Park | MN8 Energy LLC | Westford, MA | ISO New England (ISNE) | 5.3 GWh | Mar 2012 | Dec 2022 | Solar |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 9.1 GWh | Aug 1997 | Dec 2023 | Landfill Gas |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 790.8 GWh | Mar 2001 | Jun 2024 | Natural Gas |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 147.3 GWh | Feb 1993 | Dec 2022 | Natural Gas |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 364.8 GWh | Dec 1979 | Dec 2022 | Natural Gas : 99.3% Distillate Fuel Oil : 0.7% |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 610.7 GWh | Jun 1993 | Dec 2023 | Natural Gas |
| Deer Island Treatment Plant | Massachusetts Wtr Rauth-Deer I | Winthrop, MA | ISO New England (ISNE) | 41.9 GWh | Jul 1995 | Jun 2024 | Other Biomass Gas : 71.7% Distillate Fuel Oil : 14.3% Water : 11.0% Solar : 1.7% Wind : 1.3% |
| Cosgrove Intake and Power Station | Massachusetts Water Res Auth | Clinton, MA | ISO New England (ISNE) | 2.0 GWh | Dec 1968 | Dec 2022 | Water |
| Oakdale Power Station | Massachusetts Water Res Auth | West Boylston, MA | ISO New England (ISNE) | 14.9 GWh | Apr 1951 | Dec 2022 | Water |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 15.5 GWh | Oct 1981 | Jun 2024 | Distillate Fuel Oil : 72.0% Natural Gas : 28.0% |
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 | 8.5 GWh |
| Berkshire County, MA | # 12 | 35 | 58.2 GWh |
| Hampshire County, MA | # 11 | 35 | 144.9 GWh |
| Barnstable County, MA | # 10 | 21 | 157.3 GWh |
| Franklin County, MA | # 9 | 31 | 437.0 GWh |
| Suffolk County, MA | # 8 | 13 | 494.5 GWh |
| Bristol County, MA | # 7 | 68 | 593.5 GWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Plymouth County, MA | # 6 | 73 | 871.2 GWh |
| Hampden County, MA | # 5 | 83 | 1.4 TWh |
| Essex County, MA | # 4 | 37 | 2.0 TWh |
| Middlesex County, MA | # 3 | 65 | 4.1 TWh |
| Worcester County, MA | # 2 | 188 | 4.8 TWh |
| Norfolk County, MA | # 1 | 36 | 6.4 TWh |