Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Pepperell Hydro Power Plant | Eagle Creek Renewable Energy, LLC | Pepperell, MA | ISO New England (ISNE) | 3.7 GWh | Dec 1919 | Sep 2025 | Water |
| Fairhaven Wind | Fairhaven Wind LLC | Fairhaven, MA | ISO New England (ISNE) | 3.7 GWh | Mar 2012 | Dec 2024 | Wind |
| MA Blackstone | Catalyze Blackstone 83 Federal Street Microgrid, LLC | Blackstone, MA | ISO New England (ISNE) | 3.7 GWh | Jun 2022 | Dec 2024 | Solar |
| Princeton Wind Farm | Town of Princeton - (MA) | Princeton, MA | ISO New England (ISNE) | 3.7 GWh | Dec 2009 | Dec 2024 | Wind |
| ISM Solar Dighton 2, LLC CSG | 38 Degrees North, LLC | Dighton, MA | ISO New England (ISNE) | 3.7 GWh | Nov 2017 | Dec 2024 | Solar |
| Bourne (MA) - Holliston I | NVT LICENSES, LLC | Holliston, MA | ISO New England (ISNE) | 3.7 GWh | Nov 2014 | Dec 2024 | Solar |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 3.6 GWh | Feb 2020 | Dec 2024 | Solar |
| Easthampton CSG | Easthampton Park Solar 1, LLC | Easthampton, MA | ISO New England (ISNE) | 3.6 GWh | Aug 2020 | Dec 2024 | Solar |
| Syncarpha Still River, LLC CSG | Syncarpha Still River, LLC | Bolton, MA | ISO New England (ISNE) | 3.6 GWh | Nov 2016 | Dec 2024 | Solar |
| Carver CSG | Altus Power America Management, LLC | Carver, MA | ISO New England (ISNE) | 3.6 GWh | Apr 2019 | Dec 2024 | Solar |
| Alicea Solar Project Hybrid CSG | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 3.6 GWh | Nov 2020 | Dec 2024 | Solar |
| GSPP Raynham TMLP, LLC CSG | Green Street Power Partners | Raynham, MA | ISO New England (ISNE) | 3.6 GWh | Jan 2019 | Dec 2024 | Solar |
| Dartmouth Farms Solar | Dartmouth Farms Solar, LLC | Dartmouth, MA | ISO New England (ISNE) | 3.6 GWh | Oct 2017 | Dec 2024 | Solar |
| Natick Mall | Natick Mall | Natick, MA | ISO New England (ISNE) | 3.6 GWh | Sep 2018 | Dec 2024 | Solar |
| Stafford St 2 Community Solar | Stafford St Solar 2, LLC | Lecister, MA | ISO New England (ISNE) | 3.6 GWh | Apr 2018 | Dec 2024 | Solar |
| Redbrook Community Solar 1 | Redbrook Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 3.6 GWh | Sep 2017 | Dec 2024 | Solar |
| Kearsarge Granby | Kearsarge Granby LLC | Granby, MA | ISO New England (ISNE) | 3.6 GWh | Feb 2017 | Dec 2024 | Solar |
| Charlemont A | Charlemont MA, LLC | Charlemont, MA | ISO New England (ISNE) | 3.6 GWh | Aug 2021 | Nov 2024 | Solar |
| Long Plain Solar | Long Plain Solar, LLC | Whatley, MA | ISO New England (ISNE) | 3.6 GWh | Nov 2019 | Dec 2024 | Solar |
| Stafford St Solar 1 CSG | Stafford St Solar 1, LLC | Leicester, MA | ISO New England (ISNE) | 3.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Incom Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 3.6 GWh | Oct 2017 | Dec 2024 | Solar |
| Wachusett Solar | Wachusett Solar, LLC | Rutland, MA | ISO New England (ISNE) | 3.6 GWh | Jul 2019 | Dec 2024 | Solar |
| ZPD-PT Solar Project 2017-023 LLC Hybrid | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 3.5 GWh | Dec 2020 | Dec 2024 | Solar |
| Saddleback Solar | SoCore Energy LLC | Lanesborough, MA | ISO New England (ISNE) | 3.5 GWh | Aug 2022 | Dec 2024 | Solar |
| Cottage Street Solar Facility | Western Massachusetts Electric Company | Springfield, MA | ISO New England (ISNE) | 3.5 GWh | Apr 2014 | Sep 2025 | Solar |
| Bullock Road Solar 1 | Bullock Road Solar 1, LLC | Freetown, MA | ISO New England (ISNE) | 3.5 GWh | Jun 2018 | Dec 2024 | Solar |
| Walpole Solar 2 | Walpole Solar 2, LLC | Walpole, MA | ISO New England (ISNE) | 3.5 GWh | Mar 2014 | Dec 2024 | Solar |
| North Adams Landfill | Syncarpha North Adams, LLC | North Adams, MA | ISO New England (ISNE) | 3.5 GWh | Sep 2015 | Dec 2024 | Solar |
| Acushnet- High Hill | CleanCapital Holdings | Dartmouth, MA | ISO New England (ISNE) | 3.5 GWh | Feb 2013 | Dec 2024 | Solar |
| GELD Solar Farm | Ameresco, Inc - GELD | Groton, MA | ISO New England (ISNE) | 3.5 GWh | May 2016 | Dec 2024 | Solar |
| MDFA Devens-Saratoga | Terraform Arcadia | Devens, MA | ISO New England (ISNE) | 3.5 GWh | Feb 2016 | Dec 2024 | Solar |
| AIS Solar Project | Terraform Arcadia | Leominster, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2016 | Dec 2024 | Solar |
| Integrys MA Solar, LLC - Ashburnham Site | Integrys MA Solar, LLC | Ashburnham, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2013 | Dec 2024 | Solar |
| Bowden Solar LLC | 38DN Power Fund 1 LLC | Monson, MA | ISO New England (ISNE) | 3.4 GWh | Feb 2019 | Dec 2024 | Solar |
| Adams Farm Solar | Altus Power America Management, LLC | Athol, MA | ISO New England (ISNE) | 3.4 GWh | Sep 2013 | Dec 2024 | Solar |
| Hadley Solar NG, LLC | NuGen Capital Management | Hadley, MA | ISO New England (ISNE) | 3.4 GWh | Jun 2014 | Dec 2024 | Solar |
| Plainfield Community Solar LLC | Plainfield Solar LLC | Plainfield, MA | ISO New England (ISNE) | 3.4 GWh | Jan 2019 | Dec 2024 | Solar |
| Fairhaven E | Fairhaven MA 1, LLC | Fairhaven, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2021 | Dec 2024 | Solar |
| Brook Street Solar 1 CSG | Brook Street Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2017 | Dec 2024 | Solar |
| Hunt Farm Solar | Altus Power America Management, LLC | Orange, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2013 | Dec 2024 | Solar |
| Northbridge Solar | Consolidated Edison Development Inc. | South Grafton, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2013 | Dec 2024 | Solar |
| Southern Sky Renew Energy Berkley LLC | Southern Sky Renewable Energy Berkley, LLC | Berkley, MA | ISO New England (ISNE) | 3.4 GWh | May 2014 | Dec 2024 | Solar |
| Ward Solar 1, LLC | REA Investments, LLC | Carver, MA | ISO New England (ISNE) | 3.4 GWh | Jan 2019 | Dec 2024 | Solar |
| Downing Parkway Solar | Downing Parkway Solar LLC | Pittsfield, MA | ISO New England (ISNE) | 3.4 GWh | Jun 2015 | Dec 2024 | Solar |
| Kearsarge Uxbridge | Kearsarge Uxbridge LLC | Uxbridge, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2018 | Dec 2024 | Solar |
| East Bridgewater Solar | Altus Power America Management, LLC | East Bridgewater, MA | ISO New England (ISNE) | 3.4 GWh | Oct 2017 | Dec 2024 | Solar |
| Upton Community Solar | Upton Solar, LLC | Upton, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2017 | Dec 2024 | Solar |
| Palombo Solar, LLC CSG | 38 Degrees North, LLC | Uxbridge, MA | ISO New England (ISNE) | 3.4 GWh | Nov 2017 | Dec 2024 | Solar |
| Dartmouth II Solar | Consolidated Edison Development Inc. | Dartmouth, MA | ISO New England (ISNE) | 3.4 GWh | May 2012 | Dec 2024 | Solar |
| Kearsarge Montague BD(CSG) | Kearsarge Montague BD LLC | Montague, MA | ISO New England (ISNE) | 3.4 GWh | Oct 2021 | Dec 2024 | Solar |
| Padelford Solar | Consolidated Edison Solutions Inc. | Berkley, MA | ISO New England (ISNE) | 3.4 GWh | Nov 2012 | Dec 2024 | Solar |
| Ludlow Landfill | CleanCapital Holdings | Ludlow, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2013 | Dec 2024 | Solar |
| Town of Needham VNEM CSG | Tesla Inc. | Needham, MA | ISO New England (ISNE) | 3.3 GWh | Jan 2016 | Dec 2024 | Solar |
| Monson Solar, LLC | Monson Solar, LLC | Monson, MA | ISO New England (ISNE) | 3.3 GWh | Jul 2017 | Dec 2024 | Solar |
| Rail Trail | Altus Power America Management, LLC | Great Barrington, MA | ISO New England (ISNE) | 3.3 GWh | Apr 2016 | Dec 2024 | Solar |
| Cronin Road Solar 1, LLC CSG Hybrid | AES Distributed Energy | Warren, MA | ISO New England (ISNE) | 3.3 GWh | May 2020 | Dec 2024 | Solar |
| Onyx - Pembroke Landfill Solar | Onyx Asset Services Group | Pembroke, MA | ISO New England (ISNE) | 3.3 GWh | Nov 2017 | Dec 2024 | Solar |
| Scituate PV | AES Distributed Energy | Scituate, MA | ISO New England (ISNE) | 3.3 GWh | Sep 2013 | Dec 2024 | Solar |
| Brimfield | WEB Brimfield Solar LLC | Brimfield, MA | ISO New England (ISNE) | 3.3 GWh | Nov 2021 | Dec 2024 | Solar |
| Kearsarge GB | Kearsarge GB LLC | Great Barrington, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2018 | Dec 2024 | Solar |
| Spring Street Solar 1 CSG | Spring Street Solar 1, LLC | Carver, MA | ISO New England (ISNE) | 3.2 GWh | Feb 2017 | Dec 2024 | Solar |
| Griffin Road Solar, LLC CSG | Griffin Road Solar, LLC | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Feb 2018 | Dec 2024 | Solar |
| Syncarpha Hancock II CSG | Syncarpha Hancock II, LLC | Hancock, MA | ISO New England (ISNE) | 3.2 GWh | Oct 2017 | Dec 2024 | Solar |
| UMass PV Lot 22 | Consolidated Edison Development Inc. | Amherst, MA | ISO New England (ISNE) | 3.2 GWh | Aug 2022 | Dec 2024 | Solar |
| Seaboard Charlton, LLC | Navisun LLC | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2020 | Dec 2024 | Solar |
| GSPP Devens, LLC | Green Street Power Partners | Ayer, MA | ISO New England (ISNE) | 3.2 GWh | Dec 2018 | Dec 2024 | Solar |
| Savoy Solar PV | NSTAR Electric Company | Savoy, MA | ISO New England (ISNE) | 3.2 GWh | Jan 2019 | Dec 2024 | Solar |
| Washburn Road Solar | REA Investments, LLC | Freetown, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2018 | Dec 2024 | Solar |
| DG Foxborough Elm CSG | DG Foxborough Elm LLC | Foxborough, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2017 | Dec 2024 | Solar |
| Bashaw Solar CSG 1, LLC | Bashaw Solar 1, LLC | Newbury, MA | ISO New England (ISNE) | 3.2 GWh | Mar 2017 | Dec 2024 | Solar |
| Leominster (MA)-South Street-R&D | South Street Solar, LLC | Tewksbury, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2013 | Dec 2024 | Solar |
| CED Westfield Solar, LLC | Consolidated Edison Development Inc. | Westfield, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2016 | Dec 2024 | Solar |
| Partridge Hill Solar Hybrid | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2020 | Dec 2024 | Solar |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2012 | Dec 2024 | Solar |
| Ashby Duffy CSG Solar Farm | LSE Cassiopeia LLC | Ashby, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2017 | Dec 2024 | Solar |
| CES Sterling LLC | SunEdison LLC | Sterling, MA | ISO New England (ISNE) | 3.2 GWh | Jan 2013 | Dec 2024 | Solar |
| Beverly | Integrys MA Solar, LLC | Beverly, MA | ISO New England (ISNE) | 3.2 GWh | Apr 2014 | Dec 2024 | Solar |
| Monument Valley | LSE Lepus LLC | Great Barrington, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2021 | Dec 2024 | Solar |
| Hadley 3 Solar (South) | Hadley 3 Solar, LLC (South) | Hadley, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2019 | Dec 2024 | Solar |
| Depot Hill Solar CSG | CCC Solar Holdings LLC | Charlton, MA | ISO New England (ISNE) | 3.1 GWh | Sep 2016 | Dec 2024 | Solar |
| Wareham MA 1 Community Solar | Navisun LLC | Wareham, MA | ISO New England (ISNE) | 3.1 GWh | Aug 2016 | Dec 2024 | Solar |
| Sampson Road Community Solar | Sampson Road Solar, LLC | Charlton, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2017 | Dec 2024 | Solar |
| Granby LFG | Industrial Power Services Corp. | Granby, MA | ISO New England (ISNE) | 3.1 GWh | Aug 2001 | Dec 2024 | Landfill Gas |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 3.1 GWh | Jan 2019 | Dec 2024 | Solar |
| Syncarpha Hancock I CSG | Syncarpha Hancock I, LLC | Hancock, MA | ISO New England (ISNE) | 3.1 GWh | Oct 2017 | Dec 2024 | Solar |
| Shirley Water | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 3.1 GWh | Jul 2016 | Dec 2024 | Solar |
| Chicopee River Solar | Citizens Enterprises Corporation | Springfield, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2014 | Dec 2024 | Solar |
| Hinsdale Solar PV | NSTAR Electric Company | Hinsdale, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2018 | Dec 2024 | Solar |
| Gardner Solar 1 | Gardner Solar 1, LLC | Gardner, MA | ISO New England (ISNE) | 3.1 GWh | Apr 2014 | Dec 2024 | Solar |
| Kearsarge Gill | Kearsarge Gill LLC | Gill, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2017 | Dec 2024 | Solar |
| Rehoboth Solar | Citizens Enterprises Corporation | Rehoboth, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2013 | Dec 2024 | Solar |
| BWC Swan Pond River CSG | BWC Swan Pond River, LLC | Rehoboth, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2015 | Dec 2024 | Solar |
| Sutton Solar CSG | Sutton Solar, LLC | Sutton, MA | ISO New England (ISNE) | 3.0 GWh | Oct 2016 | Dec 2024 | Solar |
| West Tisbury Generating Facility | Vineyard Reliability LLC | West Tisbury, MA | ISO New England (ISNE) | 3.0 GWh | Dec 1974 | Dec 2024 | Distillate Fuel Oil |
| Ashby Solar, LLC CSG | Ashby Solar, LLC | Fitchburg, MA | ISO New England (ISNE) | 3.0 GWh | Jun 2018 | Dec 2024 | Solar |
| Hurteau Solar Project Hybrid | AES Distributed Energy | Uxbridge, MA | ISO New England (ISNE) | 3.0 GWh | Feb 2020 | Dec 2024 | Solar |
| Leominster | Syncarpha Massachusetts, LLC | Leominster, MA | ISO New England (ISNE) | 3.0 GWh | Apr 2015 | Dec 2024 | Solar |
| Williamsburg Solar LLC VNEM CSG | Tesla Inc. | Haydenville, MA | ISO New England (ISNE) | 3.0 GWh | Jan 2016 | Dec 2024 | Solar |
| Carver MA 1 Community Solar | Navisun LLC | Carver, MA | ISO New England (ISNE) | 3.0 GWh | Aug 2016 | Dec 2024 | Solar |
| Hadley 2 Solar, LLC CSG | Hadley 2 Solar, LLC | Hadley, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2016 | Dec 2024 | Solar |
Browse Power Plants By Massachusetts Counties
Figures are based on September 2025 generation numbers.| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Norfolk County, MA | # 1 | 38 | 7.3 TWh |
| Worcester County, MA | # 2 | 190 | 4.9 TWh |
| Middlesex County, MA | # 3 | 68 | 3.7 TWh |
| Essex County, MA | # 4 | 39 | 2.5 TWh |
| Hampden County, MA | # 5 | 86 | 1.7 TWh |
| Bristol County, MA | # 6 | 71 | 947.8 GWh |
| Plymouth County, MA | # 7 | 84 | 848.5 GWh |
| County | State Rank | Active Plants | Sep 2025 Generation |
|---|---|---|---|
| Barnstable County, MA | # 8 | 23 | 435.9 GWh |
| Suffolk County, MA | # 9 | 13 | 429.2 GWh |
| Franklin County, MA | # 10 | 33 | 290.3 GWh |
| Hampshire County, MA | # 11 | 37 | 270.0 GWh |
| Berkshire County, MA | # 12 | 44 | 250.6 GWh |
| Dukes County, MA | # 13 | 7 | 9.9 GWh |