Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Bridgewater Complex Co-Generation Plant | Massachusetts Department of Correction | Bridgewater, MA | ISO New England (ISNE) | 1.2 GWh | Oct 2015 | Dec 2025 | Natural Gas |
| Hopkinton CSG | Altus Power America Management, LLC | Hopkinton, MA | ISO New England (ISNE) | 2.8 GWh | Mar 2019 | Dec 2025 | Solar |
| Carver CSG | Altus Power America Management, LLC | Carver, MA | ISO New England (ISNE) | 3.5 GWh | Apr 2019 | Dec 2025 | Solar |
| GSPP Devens, LLC | Green Street Power Partners | Ayer, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2018 | Dec 2025 | Solar |
| GSPP Terrawatt Westfield LLC CSG | Green Street Power Partners | Westfield, MA | ISO New England (ISNE) | 6.0 GWh | Jan 2019 | Dec 2025 | Solar |
| GSPP Raynham TMLP, LLC CSG | Green Street Power Partners | Raynham, MA | ISO New England (ISNE) | 3.7 GWh | Jan 2019 | Dec 2025 | Solar |
| Ajax Solar, LLC (MA) | Green Street Power Partners | West Bridgewater, MA | ISO New England (ISNE) | 4.4 GWh | Nov 2017 | Dec 2025 | Solar |
| Nextsun Energy Littleton | Greenbacker Renewable Energy Corporation | Littleton, MA | ISO New England (ISNE) | 5.1 GWh | Sep 2013 | Dec 2025 | Solar |
| Gardner - Otter River Road | Otter River Road Solar LLC | Gardner, MA | ISO New England (ISNE) | 3.9 GWh | Sep 2019 | Dec 2025 | Solar |
| GSPP Boxborough Littleton (MA) | CleanCapital Holdings | Boxborough, MA | ISO New England (ISNE) | 6.2 GWh | Dec 2018 | Dec 2025 | Solar |
| Holiday Hill Community Wind | Greenbacker Renewable Energy Corporation | Russell, MA | ISO New England (ISNE) | 11.6 GWh | Nov 2019 | Dec 2025 | Wind |
| Kearsarge Gill | Kearsarge Gill LLC | Gill, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2017 | Dec 2025 | Solar |
| Syncarpha Tewksbury Hybrid CSG | Syncarpha Tewksbury, LLC | Tewksbury, MA | ISO New England (ISNE) | 3.9 GWh | Jan 2022 | Dec 2025 | Solar |
| Syncarpha Puddon I Hybrid CSG | Syncarpha Puddon I, LLC | Northbridge, MA | ISO New England (ISNE) | 8.4 GWh | Feb 2021 | Dec 2025 | Solar |
| Syncarpha Puddon II Hybrid CSG | Syncarpha Puddon II, LLC | Northbridge, MA | ISO New England (ISNE) | 8.5 GWh | Feb 2021 | Dec 2025 | Solar |
| Syncarpha Westminster Hybrid CSG | Syncarpha Westminster, LLC | Westminster, MA | ISO New England (ISNE) | 5.7 GWh | Oct 2022 | Dec 2025 | Solar |
| Syncarpha Leicester Hybrid CSG | Syncarpha Leicester, LLC | Leicester, MA | ISO New England (ISNE) | 4.4 GWh | May 2021 | Dec 2025 | Solar |
| Syncarpha Halifax Hybrid CSG | Syncarpha Halifax, LLC | Halifax, MA | ISO New England (ISNE) | 2.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Syncarpha Millbury Hybrid (CSG) | Syncarpha Millbury, LLC | Millbury, MA | ISO New England (ISNE) | 8.0 GWh | Sep 2022 | Dec 2025 | Solar |
| Syncarpha Blandford Hybrid CSG | Syncarpha Blandford, LLC | Blandford, MA | ISO New England (ISNE) | 7.9 GWh | Nov 2019 | Dec 2025 | Solar |
| Syncarpha Northampton Hybrid CSG | Syncarpha Northampton, LLC | Northampton, MA | ISO New England (ISNE) | 4.9 GWh | Nov 2020 | Dec 2025 | Solar |
| Syncarpha Northbridge I Hybrid(CSG) | Syncarpha Northbridge I, LLC | Whitinsville, MA | ISO New England (ISNE) | 8.5 GWh | Nov 2021 | Dec 2025 | Solar |
| Syncarpha Northbridge II Hybrid CSG | Syncarpha Northbridge II, LLC | Whitinsville, MA | ISO New England (ISNE) | 7.6 GWh | Mar 2021 | Dec 2025 | Solar |
| Goose Pond Solar | LSE Dorado, LLC | Southwick, MA | ISO New England (ISNE) | 7.0 GWh | Dec 2019 | Dec 2025 | Solar |
| Cronin Road Solar 1, LLC CSG Hybrid | AES Distributed Energy | Warren, MA | ISO New England (ISNE) | 3.4 GWh | May 2020 | Dec 2025 | Solar |
| Lane Ave Solar LLC | AES Distributed Energy | North Brookfield, MA | ISO New England (ISNE) | 2.2 GWh | Aug 2021 | Dec 2025 | Solar |
| Ryan Road Solar LLC Hybrid(CSG) | AES Distributed Energy | North Brookfield, MA | ISO New England (ISNE) | 9.6 GWh | Nov 2021 | Dec 2025 | Solar |
| W. Orange Rd Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 7.6 GWh | Aug 2021 | Dec 2025 | Solar |
| Wilbur Woods Solar LLC | AES Distributed Energy | Orange, MA | ISO New England (ISNE) | 7.8 GWh | Aug 2021 | Dec 2025 | Solar |
| West Street Solar 1 LLC | AES Distributed Energy | Gardner, MA | ISO New England (ISNE) | 8.2 GWh | Nov 2019 | Dec 2025 | Solar |
| Brookfield Wire Company | Dynamic Energy Solutions, LLC | Brookfield, MA | ISO New England (ISNE) | 1.5 GWh | May 2016 | Dec 2025 | Solar |
| Partridge Hill Solar Hybrid | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 2.9 GWh | Jun 2020 | Dec 2025 | Solar |
| Sutton Solar 2, LLC CSG | Sutton Solar 2, LLC | Sutton, MA | ISO New England (ISNE) | 1.3 GWh | Nov 2020 | Dec 2025 | Solar |
| Granby Solar, LLC CSG | Granby Solar, LLC | Granby, MA | ISO New England (ISNE) | 5.8 GWh | Jun 2021 | Dec 2025 | Solar |
| Kearsarge Amesbury Hybrid | Kearsarge Amesbury LLC | Amesbury, MA | ISO New England (ISNE) | 5.0 GWh | Nov 2019 | Dec 2025 | Solar |
| Hurteau Solar Project Hybrid | AES Distributed Energy | Uxbridge, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2020 | Dec 2025 | Solar |
| Alicea Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 4.0 GWh | Nov 2020 | Dec 2025 | Solar |
| McDougle-Mitchell Solar Project Hybrid C | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 6.9 GWh | Jul 2020 | Dec 2025 | Solar |
| Cycz Solar Project CSG Hybrid | AES Distributed Energy | Spencer, MA | ISO New England (ISNE) | 2.9 GWh | May 2020 | Dec 2025 | Solar |
| West A&B Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 4.7 GWh | Nov 2020 | Dec 2025 | Solar |
| Annese Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 8.1 GWh | Nov 2020 | Dec 2025 | Solar : 99.1% Electricity used for energy storage : 0.9% |
| Randall Solar Project Hybrid | AES Distributed Energy | Berlin, MA | ISO New England (ISNE) | 8.5 GWh | Jun 2021 | Dec 2025 | Solar |
| St. Joseph's Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2025 | Solar |
| Boutillier Solar, LLC CSG | 38 Degrees North, LLC | Leicester, MA | ISO New England (ISNE) | 4.5 GWh | Mar 2018 | Dec 2025 | Solar |
| Blair Wire Village Solar, LLC CSG | 38 Degrees North, LLC | Spencer, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2025 | Solar |
| Barton Acres Solar, LLC CSG | 38 Degrees North, LLC | Phillipston, MA | ISO New England (ISNE) | 1.6 GWh | Sep 2017 | Dec 2025 | Solar |
| MMWEC Simple Cycle Gas Turbine | Massachusetts Mun Wholes Electric Co | Peabody, MA | ISO New England (ISNE) | 8.3 GWh | Jun 2024 | Dec 2025 | Distillate Fuel Oil : 69.0% Natural Gas : 31.0% |
| Cherry Valley Solar, LLC CSG | 38 Degrees North, LLC | Leicester, MA | ISO New England (ISNE) | 1.5 GWh | Oct 2017 | Dec 2025 | Solar |
| ISM Solar Dighton 2, LLC CSG | 38 Degrees North, LLC | Dighton, MA | ISO New England (ISNE) | 3.6 GWh | Nov 2017 | Dec 2025 | Solar |
| Incom Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Oct 2017 | Dec 2025 | Solar |
| JH Solar, LLC CSG | 38 Degrees North, LLC | North Brookfield, MA | ISO New England (ISNE) | 1.5 GWh | Oct 2017 | Dec 2025 | Solar |
| Woodchuck Solar, LLC CSG | 38 Degrees North, LLC | Spencer, MA | ISO New England (ISNE) | 1.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Dudley River 3 Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.7 GWh | Oct 2017 | Dec 2025 | Solar |
| Dudley River 2 Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2025 | Solar |
| Dudley River Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | Dec 2025 | Solar |
| Ledeaux Solar, LLC CSG | 38 Degrees North, LLC | North Brookfield, MA | ISO New England (ISNE) | 1.4 GWh | Oct 2017 | Dec 2025 | Solar |
| Cohasse Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.5 GWh | Sep 2017 | Dec 2025 | Solar |
| Palombo Solar, LLC CSG | 38 Degrees North, LLC | Uxbridge, MA | ISO New England (ISNE) | 3.4 GWh | Nov 2017 | Dec 2025 | Solar |
| Palombo B Solar, LLC CSG | 38 Degrees North, LLC | Uxbridge, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2025 | Solar |
| One Patriot | Bloom Energy | Foxborough, MA | ISO New England (ISNE) | 16.9 GWh | Nov 2019 | Dec 2025 | Natural Gas |
| Bowden Solar LLC | 38DN Power Fund 1 LLC | Monson, MA | ISO New England (ISNE) | 3.3 GWh | Feb 2019 | Dec 2025 | Solar |
| Lakeville Solar | C2 MA Lakeville, LLC | Lakeville, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2018 | Dec 2025 | Solar |
| Oak Street Solar | Citizens Enterprises Corporation | Springfield, MA | ISO New England (ISNE) | 5.4 GWh | Nov 2019 | Dec 2025 | Solar |
| Cranberry Solar | GWE Cranberry Solar RT, LLC | Middleborough, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2016 | Dec 2025 | Solar |
| CES Agawam Tuckahoe Solar Hybrid | CES Agawam Tuckahoe Solar LLC | Agawam, MA | ISO New England (ISNE) | 6.7 GWh | Nov 2021 | Dec 2025 | Solar |
| East Brookfield Main Street Solar LLC CS | AES Distributed Energy | East Brookfield, MA | ISO New England (ISNE) | 1.3 GWh | Nov 2020 | Dec 2025 | Solar |
| Sunpin Blandford | Blandford Sun, LLC | Southwick, MA | ISO New England (ISNE) | 6.3 GWh | May 2020 | Dec 2025 | Solar |
| Erving CSG | Erving Poplar Mountain Solar 1, LLC | Erving, MA | ISO New England (ISNE) | 1.5 GWh | Aug 2020 | Dec 2025 | Solar |
| Easthampton CSG | Easthampton Park Solar 1, LLC | Easthampton, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2020 | Dec 2025 | Solar |
| Amaterasu LLC | AES Distributed Energy | Lancaster, MA | ISO New England (ISNE) | 7.0 GWh | May 2021 | Dec 2025 | Solar |
| 28 Livermore Hill Road Solar | 28 Livermore Hill Road Solar, LLC | Westminster, MA | ISO New England (ISNE) | 7.5 GWh | May 2020 | Dec 2025 | Solar |
| Montague Road Solar | Montague Road Solar, LLC | Amherst, MA | ISO New England (ISNE) | 4.2 GWh | Nov 2019 | Dec 2025 | Solar |
| Fitchburg Renewables | Fitchburg Renewables, LLC | Fitchburg, MA | ISO New England (ISNE) | 6.0 GWh | Feb 2020 | Dec 2025 | Solar |
| SELCO Community Solar | Massachusetts Mun Wholes Electric Co | Shrewsbury, MA | ISO New England (ISNE) | 4.6 GWh | May 2018 | Dec 2025 | Solar |
| Canton | Captona Canton LLC | Canton, MA | ISO New England (ISNE) | 6.0 GWh | Jul 2012 | Dec 2025 | Solar |
| Ravenbrook | Captona Ravenbrook LLC | Carver, MA | ISO New England (ISNE) | 6.4 GWh | Nov 2013 | Dec 2025 | Solar |
| Hudson | Captona Hudson LLC | Hudson, MA | ISO New England (ISNE) | 5.4 GWh | Apr 2017 | Dec 2025 | Solar |
| Berkley | Captona Berkley LLC | Berkley, MA | ISO New England (ISNE) | 3.7 GWh | Mar 2017 | 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 |
| Kenmare - Mansfield Branch Street | MN8 Energy LLC | Mansfield, MA | ISO New England (ISNE) | 2.3 GWh | May 2017 | Dec 2025 | Solar |
| BWC Stony Brook, LLC Hybrid | AES Distributed Energy | Chelmsford, MA | ISO New England (ISNE) | 1.8 GWh | Jun 2021 | Dec 2025 | Solar |
| ZPD-PT Solar Project 2017-038 Hybrid LLC | AES Distributed Energy | Lancaster, MA | ISO New England (ISNE) | 7.5 GWh | Mar 2021 | Dec 2025 | Solar |
| Newton Rumford Landfill | Newton Municipal Solar LLC - Rumford | Newton, MA | ISO New England (ISNE) | 2.2 GWh | Jun 2017 | Dec 2025 | Solar |
| BWC Muddy Brook, LLC Hybrid | AES Distributed Energy | Mendon, MA | ISO New England (ISNE) | 1.9 GWh | Aug 2021 | Dec 2025 | Solar : 99.8% |
| BWC Lake Lashaway, LLC Hybrid | AES Distributed Energy | North Brookfield, MA | ISO New England (ISNE) | 8.3 GWh | Apr 2021 | Dec 2025 | Solar : 99.4% Electricity used for energy storage : 0.6% |
| ZPD-PT Solar Project 2017-044 LLC CSG | AES Distributed Energy | Spencer, MA | ISO New England (ISNE) | 812.0 MWh | Sep 2021 | Dec 2025 | Solar |
| ZPD-PT Solar Project 2017-023 LLC Hybrid | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 4.0 GWh | Dec 2020 | Dec 2025 | Solar : 99.9% |
| ZPD-PT Solar Project 2017-021 LLC Hybrid | AES Distributed Energy | Wilbraham, MA | ISO New England (ISNE) | 1.6 GWh | Dec 2020 | Dec 2025 | Solar |
| Auburn Solar Project | Agilitas Energy, Inc. | Auburn, MA | ISO New England (ISNE) | 8.0 GWh | Apr 2022 | Dec 2025 | Solar |
| Hadley 3 Solar (North) | Hadley 3 Solar, LLC (North) | Hadley, MA | ISO New England (ISNE) | 2.6 GWh | Nov 2019 | Dec 2025 | Solar |
| Hadley 3 Solar (South) | Hadley 3 Solar, LLC (South) | Hadley, MA | ISO New England (ISNE) | 3.3 GWh | Nov 2019 | Dec 2025 | Solar |
| ZPD-PT Solar Project 2017-006 LLC Hybrid | AES Distributed Energy | Warren, MA | ISO New England (ISNE) | 6.1 GWh | Jun 2021 | Dec 2025 | Solar |
| Wilbraham | BWC East Brook, LLC | Wilbraham, MA | ISO New England (ISNE) | 5.6 GWh | Nov 2020 | Dec 2025 | Solar |
| Elm Street | ISM Solar Dighton 3, LLC | Dighton, MA | ISO New England (ISNE) | 4.7 GWh | Nov 2020 | Dec 2025 | Solar |
| Rounseville Solar | Rounseville Solar 1, LLC | Rochester, MA | ISO New England (ISNE) | 3.8 GWh | Jan 2020 | Dec 2025 | Solar |
| Dresser Hill CSG | Dresser Hill Solar, LLC | Southbridge, MA | ISO New England (ISNE) | 6.1 GWh | Dec 2020 | Dec 2025 | Solar |
| Raboth - Marion Drive | Madison Energy Holdings LLC | Kingston, MA | ISO New England (ISNE) | 3.6 GWh | Feb 2021 | Dec 2025 | Solar |
| Norton | Madison Energy Holdings LLC | Norton, MA | ISO New England (ISNE) | 1.6 GWh | Feb 2023 | Dec 2025 | Solar |
| Dudley | AMP MA Dudley | Dudley, MA | ISO New England (ISNE) | 7.5 GWh | Jun 2018 | Dec 2025 | Solar |
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 |