Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Devens | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 4.6 GWh | May 2014 | Dec 2025 | Solar |
| BWC Wading River One, Two, Three CSG | Ameresco BWC Wading River LLC | Mendon, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2025 | Solar |
| Ameresco Chicopee Energy | AMERESCO Chicopee Energy LLC | Chicopee, MA | ISO New England (ISNE) | 3.7 GWh | Jan 2004 | Dec 2025 | Landfill Gas |
| Northampton Landfill Solar PV | Ameresco Glendale Road Solar PV LLC | Northampton, MA | ISO New England (ISNE) | 1.9 GWh | Oct 2017 | Dec 2025 | Solar |
| Braintree Landfill Solar | Ameresco, Inc - Braintree | Braintree, MA | ISO New England (ISNE) | 1.3 GWh | Nov 2014 | Dec 2025 | Solar |
| GELD Solar Farm | Ameresco, Inc - GELD | Groton, MA | ISO New England (ISNE) | 3.3 GWh | May 2016 | Dec 2025 | Solar |
| Weston Landfill Solar | Ameresco, Inc - Weston | Weston, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2016 | Dec 2025 | Solar |
| Amherst College Co Gen | Amherst College | Amherst, MA | ISO New England (ISNE) | 8.2 GWh | Oct 2006 | Dec 2025 | Natural Gas |
| Dudley | AMP MA Dudley | Dudley, MA | ISO New England (ISNE) | 7.5 GWh | Jun 2018 | Dec 2025 | Solar |
| Joe Jenny | AMP MA Joe Jenny | Oxford, MA | ISO New England (ISNE) | 2.4 GWh | Apr 2018 | Dec 2024 | Solar |
| ANP Blackstone Energy Project | ANP Blackstone Energy Company LLC | Blackstone, MA | ISO New England (ISNE) | 2.9 TWh | May 2001 | May 2026 | Natural Gas |
| ASD Cotuit MA Solar LLC | ASD Cotuit MA Solar LLC | Sandwich, MA | ISO New England (ISNE) | 2.2 GWh | Oct 2023 | Dec 2024 | Solar |
| Three Rivers Solar LLC | ASD Three Rivers Road MA Solar LLC | Wilbraham, MA | ISO New England (ISNE) | 154.0 MWh | Oct 2024 | Dec 2024 | Solar |
| ASD Wallum MA Solar LLC(CSG) | ASD Wallum MA Solar LLC | Douglas, MA | ISO New England (ISNE) | 9.4 GWh | Dec 2021 | Dec 2024 | Solar |
| Ashby Solar, LLC CSG | Ashby Solar, LLC | Fitchburg, MA | ISO New England (ISNE) | 2.9 GWh | Jun 2018 | Dec 2025 | Solar |
| New England Wind LLC | Avangrid Power LLC | Florida, MA | ISO New England (ISNE) | 73.0 GWh | Nov 2012 | May 2026 | Wind |
| Bashaw Solar CSG 1, LLC | Bashaw Solar 1, LLC | Newbury, MA | ISO New England (ISNE) | 2.9 GWh | Mar 2017 | Dec 2025 | Solar |
| Belchertown Renewables Community Solar | Belchertown Renewables, LLC | Belchertown, MA | ISO New England (ISNE) | 6.2 GWh | Feb 2018 | Dec 2025 | Solar |
| ANP Bellingham Energy Project | Bellingham Power Generation LLC | Bellingham, MA | ISO New England (ISNE) | 3.1 TWh | Oct 2002 | 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 |
| Bird Machine Solar Farm | Bird Machine Solar Farm, LLC | South Walpole, MA | ISO New England (ISNE) | 5.9 GWh | Jul 2017 | Dec 2025 | Solar |
| Blacksmith Road Solar 1 | Blacksmith Road Solar 1, LLC | Falmouth, MA | ISO New England (ISNE) | 8.5 GWh | Nov 2021 | Dec 2025 | Solar |
| Sunpin Blandford | Blandford Sun, LLC | Southwick, MA | ISO New England (ISNE) | 6.3 GWh | May 2020 | Dec 2025 | Solar |
| Blodgett Solar CSG | Blodgett Street Solar 1, LLC | Tyngsboro, MA | ISO New England (ISNE) | 9.8 GWh | Jul 2021 | Dec 2024 | Solar |
| Equinix - Billerica | Bloom Energy | Billerica, MA | ISO New England (ISNE) | 14.5 GWh | Aug 2021 | Dec 2025 | Natural Gas |
| CoreSite - Somerville | Bloom Energy | Somerville, MA | ISO New England (ISNE) | 27.8 GWh | Aug 2020 | Dec 2025 | Natural Gas |
| One Patriot | Bloom Energy | Foxborough, MA | ISO New England (ISNE) | 16.9 GWh | Nov 2019 | Dec 2025 | Natural Gas |
| Boott Hydropower | Boott Hydro, LLC - Hybrid | Lowell, MA | ISO New England (ISNE) | 60.8 GWh | Sep 1985 | Dec 2025 | Water |
| Boston Medical Center CHP Plant | Boston Medical Center | Boston, MA | ISO New England (ISNE) | 14.0 GWh | Mar 2017 | Dec 2025 | Natural Gas |
| Bradford Solar | Bradford Solar, LLC | Haverhill, MA | ISO New England (ISNE) | 7.6 GWh | Mar 2017 | Dec 2024 | Solar |
| Breckenridge Solar | Breckenridge Street Solar 1, LLC | Palmer, MA | ISO New England (ISNE) | 6.7 GWh | Oct 2020 | Dec 2024 | Solar |
| Brockelman Road Solar 2 | Brockelman Road Solar 2, LLC | Lancaster, MA | ISO New England (ISNE) | 1.8 GWh | Jul 2021 | Dec 2025 | Solar |
| Brook Street Solar 1 CSG | Brook Street Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2017 | Dec 2025 | Solar |
| Bullock Road Solar 1 | Bullock Road Solar 1, LLC | Freetown, MA | ISO New England (ISNE) | 3.8 GWh | Jun 2018 | Dec 2025 | Solar |
| Westport Community Solar Garden | BWC Bass River LLC | Westport, MA | ISO New England (ISNE) | 3.7 GWh | Jun 2017 | Dec 2024 | Solar |
| Mendon | BWC Box Pond LLC | Mendon, MA | ISO New England (ISNE) | 3.8 GWh | Nov 2017 | Dec 2024 | Solar |
| Dover (MA) | BWC Buckmaster Pond LLC | Dover, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2017 | Dec 2024 | Solar |
| Adirondack A+B Community Solar Garden | BWC Connecticut River LLC | Westport, MA | ISO New England (ISNE) | 8.3 GWh | Nov 2018 | Dec 2024 | Solar |
| Wilbraham | BWC East Brook, LLC | Wilbraham, MA | ISO New England (ISNE) | 5.6 GWh | Nov 2020 | Dec 2025 | Solar |
| BWC Gibbs Brook | BWC Gibbs Brook, LLC | Wareham, MA | ISO New England (ISNE) | 6.6 GWh | Nov 2018 | Dec 2025 | Solar |
| Westport B Community Solar Garden | BWC Hamilton Brook LLC | Westport, MA | ISO New England (ISNE) | 7.9 GWh | Oct 2018 | Dec 2025 | Solar |
| BWC Harlow Brook | BWC Harlow Brook, LLC | Wareham, MA | ISO New England (ISNE) | 2.1 GWh | Nov 2018 | Dec 2025 | Solar |
| BWC Mystic River | BWC Mystic River LLC | Mendon, MA | ISO New England (ISNE) | 1.8 GWh | Jun 2017 | Dec 2025 | Solar |
| BWC Origination 18 | BWC Origination 18, LLC | Mattapoisett, MA | ISO New England (ISNE) | 7.4 GWh | Nov 2018 | Dec 2025 | Solar |
| BWC Origination 19 | BWC Origination 19 LLC | Hopedale, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2017 | Dec 2025 | Solar |
| New Bedford (MA) Plymouth | BWC Origination 4, LLC | Plymouth, MA | ISO New England (ISNE) | 7.0 GWh | Jun 2014 | Dec 2025 | Solar |
| BWC Origination 8 LLC Sturbridge 1 | BWC Origination 8 LLC Sturbridge 1 LLC | Sturbridge, MA | ISO New England (ISNE) | 1.2 GWh | Jul 2017 | Dec 2025 | Solar |
| BWC Origination 8 LLC Sturbridge 2 | BWC Origination 8 LLC Sturbridge 2 LLC | Sturbridge, MA | ISO New England (ISNE) | 1.3 GWh | Aug 2017 | Dec 2025 | Solar |
| BWC Pocasset River | BWC Pocasset River, LLC | Wareham, MA | ISO New England (ISNE) | 2.3 GWh | Nov 2018 | Dec 2025 | Solar |
| BWC Swan Pond River CSG | BWC Swan Pond River, LLC | Rehoboth, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2015 | Dec 2025 | Solar |
| BWC Wareham River | BWC Wareham River, LLC | Wareham, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2018 | Dec 2025 | Solar |
| Lakeville Solar | C2 MA Lakeville, LLC | Lakeville, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2018 | Dec 2025 | Solar |
| 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% |
| Camelot Wind LLC | Camelot Wind LLC | Plymouth, MA | ISO New England (ISNE) | 2.3 GWh | Sep 2012 | Dec 2024 | Wind |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 546.2 GWh | May 1968 | May 2026 | Residual Fuel Oil : 55.3% Natural Gas : 34.6% Distillate Fuel Oil : 10.1% |
| Berkley | Captona Berkley LLC | Berkley, MA | ISO New England (ISNE) | 3.7 GWh | Mar 2017 | Dec 2025 | Solar |
| Canton | Captona Canton LLC | Canton, MA | ISO New England (ISNE) | 6.0 GWh | Jul 2012 | Dec 2025 | Solar |
| Carver | Captona Carver LLC | North Carver, MA | ISO New England (ISNE) | 1.8 GWh | Apr 2017 | Dec 2025 | Solar |
| Chicopee | Captona Chicopee LLC | Chicopee, MA | ISO New England (ISNE) | 2.3 GWh | Mar 2017 | Dec 2025 | Solar |
| Hudson | Captona Hudson LLC | Hudson, MA | ISO New England (ISNE) | 5.4 GWh | Apr 2017 | Dec 2025 | Solar |
| Ravenbrook | Captona Ravenbrook LLC | Carver, MA | ISO New England (ISNE) | 6.4 GWh | Nov 2013 | Dec 2025 | Solar |
| MA Blackstone | Catalyze Blackstone 83 Federal Street Microgrid, LLC | Blackstone, MA | ISO New England (ISNE) | 6.6 GWh | Jun 2022 | Dec 2025 | Solar |
| Curtis Hill Solar CSG | CCC Solar Holdings LLC | Charlton, MA | ISO New England (ISNE) | 2.8 GWh | Sep 2016 | Dec 2024 | Solar |
| Depot Hill Solar CSG | CCC Solar Holdings LLC | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Sep 2016 | Dec 2025 | Solar |
| Franklin 1 | CD US Solar MT 2 LLC | Wrentham, MA | ISO New England (ISNE) | 4.4 GWh | Oct 2013 | Dec 2025 | Solar |
| Franklin 2 | CD US Solar MT 2 LLC | Franklin, MA | ISO New England (ISNE) | 5.7 GWh | Nov 2013 | Dec 2025 | Solar |
| Grafton Solar | CD US Solar MT 2 LLC | Grafton, MA | ISO New England (ISNE) | 2.0 GWh | Sep 2013 | Dec 2025 | Solar |
| True North | CD US Solar MT1 LLC | Salisbury, MA | ISO New England (ISNE) | 6.0 GWh | Jul 2012 | Dec 2025 | Solar |
| Shaffer | CD US Solar MT3, LLC | Billerica, MA | ISO New England (ISNE) | 6.4 GWh | Aug 2014 | Dec 2025 | Solar |
| Dwight | Central Rivers Power MA, LLC | Chicopee, MA | ISO New England (ISNE) | 5.6 GWh | Dec 1919 | Dec 2025 | Water |
| Indian Orchard | Central Rivers Power MA, LLC | Indian Orchard, MA | ISO New England (ISNE) | 3.5 GWh | Dec 1927 | Dec 2025 | Water |
| Gardners Falls | Central Rivers Power MA, LLC | Buckland, MA | ISO New England (ISNE) | 11.4 GWh | Dec 1913 | Dec 2025 | Water |
| Putts Bridge | Central Rivers Power MA, LLC | Ludlow, MA | ISO New England (ISNE) | 10.6 GWh | Dec 1917 | Dec 2025 | Water |
| Lawrence Hydroelectric Associates | Central Rivers Power US, LLC | Lawrence, MA | ISO New England (ISNE) | 58.9 GWh | Jun 1981 | Dec 2025 | Water |
| CES Agawam Tuckahoe Solar Hybrid | CES Agawam Tuckahoe Solar LLC | Agawam, MA | ISO New England (ISNE) | 6.7 GWh | Nov 2021 | Dec 2025 | Solar |
| Charlton Solar I CSG | Charlton Solar I, LLC | Charlton, MA | ISO New England (ISNE) | 5.3 GWh | Nov 2014 | Dec 2025 | Solar |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 4.0 GWh | Feb 2020 | Dec 2025 | Solar |
| Chicopee River Solar | Citizens Enterprises Corporation | Springfield, MA | ISO New England (ISNE) | 2.9 GWh | Dec 2014 | Dec 2025 | Solar |
| Twiss Street Solar | Citizens Enterprises Corporation | Westfield, MA | ISO New England (ISNE) | 1.9 GWh | Dec 2014 | Mar 2025 | Solar |
| Rehoboth Solar | Citizens Enterprises Corporation | Rehoboth, MA | ISO New England (ISNE) | 2.9 GWh | Nov 2013 | Dec 2025 | Solar |
| Oak Street Solar | Citizens Enterprises Corporation | Springfield, MA | ISO New England (ISNE) | 5.4 GWh | Nov 2019 | Dec 2025 | Solar |
| Agawam Solar | Citizens Enterprises Corporation | Agawam, MA | ISO New England (ISNE) | 2.0 GWh | Feb 2012 | Dec 2025 | Solar |
| Chicopee Granby Road Solar | Citizens Enterprises Corporation | Chicopee, MA | ISO New England (ISNE) | 2.4 GWh | Dec 2014 | Dec 2025 | Solar |
| Norton Landfill Solar | Citizens Enterprises Corporation | Norton, MA | ISO New England (ISNE) | 2.3 GWh | Dec 2016 | Dec 2025 | Solar |
| Tyngsborough Solar | Citizens Enterprises Corporation | Tyngsborough, MA | ISO New England (ISNE) | 3.2 GWh | Dec 2016 | Dec 2025 | Solar |
| Citizens Agawam Landfill Solar | Citizens Enterprises Corporation | Agawam, MA | ISO New England (ISNE) | 2.6 GWh | Mar 2017 | Dec 2025 | Solar |
| Route 57 Solar | Citizens Enterprises Corporation | Agawam, MA | ISO New England (ISNE) | 2.2 GWh | Feb 2013 | Dec 2025 | Solar |
| Ashland Solar | Citizens Enterprises Corporation | Ashland, MA | ISO New England (ISNE) | 6.4 GWh | Nov 2019 | Dec 2025 | Solar |
| Falmouth 2 Solar | Citizens Enterprises Corporation | Falmouth, MA | ISO New England (ISNE) | 2.7 GWh | Aug 2021 | Dec 2025 | Solar |
| Whately Solar | Citizens Enterprises Corporation | Whately, MA | ISO New England (ISNE) | 2.4 GWh | Feb 2013 | Dec 2025 | Solar |
| Oxford Solar | Citizens Enterprises Corporation | Oxford, MA | ISO New England (ISNE) | 4.8 GWh | Jan 2020 | Dec 2025 | Solar |
| Chicopee Solar | Citizens Enterprises Corporation | Chicopee, MA | ISO New England (ISNE) | 4.4 GWh | Nov 2013 | Dec 2025 | Solar |
| Falmouth Landfill Solar | Citizens Enterprises Corporation | Falmouth, MA | ISO New England (ISNE) | 4.7 GWh | Mar 2017 | Dec 2025 | Solar |
| Hunt Road Solar | Citizens Enterprises Corporation | Amesbury, MA | ISO New England (ISNE) | 7.0 GWh | Nov 2016 | Dec 2025 | Solar |
| EBZ Solar | Citizens Enterprises Corporation | Shirley, MA | ISO New England (ISNE) | 3.4 GWh | Dec 2012 | Dec 2025 | Solar |
| Front Street | City of Chicopee - (MA) | Chicopee, MA | ISO New England (ISNE) | 1.2 GWh | Dec 1977 | Dec 2025 | Distillate Fuel Oil |
| Chemical | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 5.1 GWh | Dec 1934 | Dec 2025 | Water |
| Cobble Mountain | City of Holyoke Gas and Elec Dept - (MA) | Granville, MA | ISO New England (ISNE) | 7.1 GWh | Dec 1929 | Dec 2025 | Water |
| Riverside Holyoke | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 22.5 GWh | Dec 1905 | Dec 2025 | Water |
| Cabot Holyoke | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 3.0 GWh | Dec 1892 | Dec 2025 | Water |
Browse Power Plants By Massachusetts Counties
Figures are based on May 2026 generation numbers.| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Norfolk County, MA | # 1 | 40 | 6.7 TWh |
| Worcester County, MA | # 2 | 197 | 5.4 TWh |
| Essex County, MA | # 3 | 41 | 2.5 TWh |
| Middlesex County, MA | # 4 | 68 | 1.9 TWh |
| Hampden County, MA | # 5 | 89 | 1.9 TWh |
| Plymouth County, MA | # 6 | 84 | 814.7 GWh |
| Bristol County, MA | # 7 | 74 | 645.8 GWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Barnstable County, MA | # 8 | 25 | 628.3 GWh |
| Suffolk County, MA | # 9 | 14 | 428.0 GWh |
| Dukes County, MA | # 10 | 7 | 376.1 GWh |
| Hampshire County, MA | # 11 | 39 | 226.9 GWh |
| Berkshire County, MA | # 12 | 46 | 198.8 GWh |
| Franklin County, MA | # 13 | 33 | 182.1 GWh |