Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Brook Street Solar 1 CSG | Brook Street Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2017 | 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 |
| Bullock Road Solar 1 | Bullock Road Solar 1, LLC | Freetown, MA | ISO New England (ISNE) | 3.5 GWh | Jun 2018 | 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 |
| Stafford St Solar 3 CSG | Stafford St Solar 3, LLC | Leicester, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2017 | Dec 2024 | Solar |
| BWC Wading River One, Two, Three CSG | Ameresco BWC Wading River LLC | Mendon, MA | ISO New England (ISNE) | 5.0 GWh | Oct 2017 | Dec 2024 | Solar |
| Syncarpha Freetown | Marie's Way Solar I, LLC | Freetown, MA | ISO New England (ISNE) | 6.2 GWh | Oct 2016 | Dec 2024 | Solar |
| Onset East Community Solar Facility | Kearsarge Onset LLC | Wareham, MA | ISO New England (ISNE) | 1.8 GWh | Mar 2016 | Dec 2024 | Solar |
| Onset West Community Solar Facility | Kearsarge Onset LLC | Wareham, MA | ISO New England (ISNE) | 1.8 GWh | Mar 2016 | Dec 2024 | Solar |
| Boston Medical Center CHP Plant | Boston Medical Center | Boston, MA | ISO New England (ISNE) | 14.2 GWh | Mar 2017 | Dec 2024 | Natural Gas |
| 433 Purchase Solar NG, LLC | NuGen Capital Management | Swansea, MA | ISO New England (ISNE) | 3.8 GWh | Mar 2012 | Dec 2024 | Solar |
| Old Wardour Solar | NuGen Capital Management | East Brookfield, MA | ISO New England (ISNE) | 6.6 GWh | Dec 2015 | Dec 2024 | Solar |
| Shuman Solar | NuGen Capital Management | Stoughton, MA | ISO New England (ISNE) | 2.1 GWh | Mar 2016 | Dec 2024 | Solar |
| Vuelta Solar | NuGen Capital Management | East Brookfield, MA | ISO New England (ISNE) | 6.6 GWh | Dec 2015 | Dec 2024 | Solar |
| Farley Road Community Solar | Farley Road Solar, LLC | Dudley, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2017 | Dec 2024 | Solar |
| Belchertown Renewables Community Solar | Belchertown Renewables, LLC | Belchertown, MA | ISO New England (ISNE) | 6.5 GWh | Feb 2018 | Dec 2024 | Solar |
| Theodore Drive Community Solar | Theodore Drive Solar, LLC | Westminster, MA | ISO New England (ISNE) | 2.5 GWh | Feb 2018 | Dec 2024 | Solar |
| Upton Community Solar | Upton Solar, LLC | Upton, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2017 | Dec 2024 | Solar |
| Pleasantdale Road Community Solar | Pleasantdale Road Solar, LLC | Rutland, MA | ISO New England (ISNE) | 1.4 GWh | Aug 2017 | Dec 2024 | Solar |
| Hatfield Renewables Community Solar | Hatfield Renewables, LLC | Hatfield, MA | ISO New England (ISNE) | 2.9 GWh | Aug 2017 | Dec 2024 | Solar |
| Peterson Road Solar | Peterson Road Solar, LLC | Palmer, MA | ISO New England (ISNE) | 4.4 GWh | Mar 2017 | 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 |
| Golden Hills Solar | Golden Hills Solar, LLC | Rutland, MA | ISO New England (ISNE) | 7.8 GWh | Aug 2017 | Dec 2024 | Solar |
| Grafton PV | MN8 Energy LLC | Grafton, MA | ISO New England (ISNE) | 4.5 GWh | Sep 2016 | Dec 2024 | Solar |
| Barrett PV | MN8 Energy LLC | Oxford, MA | ISO New England (ISNE) | 19.5 GWh | Oct 2016 | Dec 2024 | Solar |
| MDFA Devens-Saratoga | Terraform Arcadia | Devens, MA | ISO New England (ISNE) | 3.5 GWh | Feb 2016 | Dec 2024 | Solar |
| Smith & Wesson at Springfield MA PV | Luminace Solar Massachusetts, LLC | Springfield, MA | ISO New England (ISNE) | 2.4 GWh | Jun 2017 | Dec 2024 | Solar |
| Centaurus Solar - MA | LSE Centaurus LLC | Ashland, MA | ISO New England (ISNE) | 2.7 GWh | Oct 2016 | Dec 2024 | Solar |
| Kearsarge Bellingham PV | Kearsarge Bellingham LLC | Bellingham, MA | ISO New England (ISNE) | 4.8 GWh | Nov 2016 | 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 |
| West Boylston Community Shared Solar | Town of West Boylston - (MA) | West Boylston, MA | ISO New England (ISNE) | 2.2 GWh | Nov 2016 | Dec 2024 | Solar |
| Big George PV CSG | Altus Power America Management, LLC | Plymouth, MA | ISO New England (ISNE) | 1.4 GWh | Aug 2018 | Dec 2024 | Solar |
| 301 Chestnut Solar NG | NuGen Capital Management | East Longmeadow, MA | ISO New England (ISNE) | 2.4 GWh | Mar 2017 | Dec 2024 | Solar |
| Antanavica Solar | Cypress Creek Renewables | Leicester, MA | ISO New England (ISNE) | 1.4 GWh | Jul 2018 | Dec 2024 | Solar |
| Weston Landfill Solar | Ameresco, Inc - Weston | Weston, MA | ISO New England (ISNE) | 2.9 GWh | Feb 2016 | Dec 2024 | Solar |
| Braintree Landfill Solar | Ameresco, Inc - Braintree | Braintree, MA | ISO New England (ISNE) | 1.2 GWh | Nov 2014 | Dec 2024 | Solar |
| GELD Solar Farm | Ameresco, Inc - GELD | Groton, MA | ISO New England (ISNE) | 3.5 GWh | May 2016 | Dec 2024 | Solar |
| DG Haverhill CSG | DG Haverhill LLC | Haverhill, MA | ISO New England (ISNE) | 1.6 GWh | Aug 2017 | Dec 2024 | Solar |
| DG Crystal Spring CSG | DG Crystal Spring LLC | Mattapoisett, MA | ISO New England (ISNE) | 6.8 GWh | Jun 2017 | Dec 2024 | Solar |
| Falmouth Landfill Solar | Citizens Enterprises Corporation | Falmouth, MA | ISO New England (ISNE) | 4.9 GWh | Mar 2017 | Dec 2024 | Solar |
| Town of Foxborough - Landfill (SREC II) | Town of Foxborough - Landfill (SREC II) | Foxborough, MA | ISO New England (ISNE) | 1.9 GWh | Jul 2017 | Dec 2024 | Solar |
| Citizens Agawam Landfill Solar | Citizens Enterprises Corporation | Agawam, MA | ISO New England (ISNE) | 2.7 GWh | Mar 2017 | Dec 2024 | Solar |
| Norton Landfill Solar | Citizens Enterprises Corporation | Norton, MA | ISO New England (ISNE) | 2.4 GWh | Dec 2016 | Dec 2024 | Solar |
| Tyngsborough Solar | Citizens Enterprises Corporation | Tyngsborough, MA | ISO New England (ISNE) | 4.0 GWh | Dec 2016 | Dec 2024 | Solar |
| CED Chicopee Solar | Consolidated Edison Development Inc. | Chicopee, MA | ISO New England (ISNE) | 4.8 GWh | Jun 2017 | Dec 2024 | Solar |
| West Brookfield Solar - Gilbertsville Rd | Nautilus Solar Solutions | West Brookfield, MA | ISO New England (ISNE) | 5.7 GWh | May 2017 | Dec 2024 | Solar |
| DG Tufts Science LLC CSG | DG Tufts Science, LLC | North Grafton, MA | ISO New England (ISNE) | 1.4 GWh | Jan 2017 | Dec 2024 | Solar |
| DG Tufts Knoll LLC CSG | DG Tufts Knoll, LLC | North Grafton, MA | ISO New England (ISNE) | 2.9 GWh | Jul 2017 | Dec 2024 | Solar |
| Greater New Bedford LFG Utiliz. Facility | CommonWealth New Bedford Energy LLC | New Bedford, MA | ISO New England (ISNE) | 16.9 GWh | Sep 2005 | Dec 2024 | Landfill Gas |
| Onyx - Pembroke Landfill Solar | Onyx Asset Services Group | Pembroke, MA | ISO New England (ISNE) | 3.3 GWh | Nov 2017 | Dec 2024 | Solar |
| Solten Plainville 6000, LLC | Altus Power America Management, LLC | Plainville, MA | ISO New England (ISNE) | 7.1 GWh | Jul 2017 | Dec 2024 | Solar |
| Randolph | Altus Power America Management, LLC | Randolph, MA | ISO New England (ISNE) | 6.0 GWh | Oct 2017 | Dec 2024 | Solar |
| East Acres Solar NG, LLC | NuGen Capital Management | Pittsfield, MA | ISO New England (ISNE) | 4.9 GWh | Mar 2017 | 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 |
| Syncarpha Hancock II CSG | Syncarpha Hancock II, LLC | Hancock, MA | ISO New England (ISNE) | 3.2 GWh | Oct 2017 | Dec 2024 | Solar |
| Syncarpha Hancock III CSG | Syncarpha Hancock III, LLC | Pittsfield, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | 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 |
| Kearsarge Concord II | Kearsarge Concord II LLC | Concord, MA | ISO New England (ISNE) | 6.9 GWh | Dec 2016 | Dec 2024 | Solar |
| Kearsarge Granby | Kearsarge Granby LLC | Granby, MA | ISO New England (ISNE) | 3.6 GWh | Feb 2017 | Dec 2024 | Solar |
| Wareham Solar PV | NSTAR Electric Company | Wareham, MA | ISO New England (ISNE) | 1.2 GWh | Nov 2018 | Dec 2024 | Solar |
| East Longmeadow Solar PV | NSTAR Electric Company | East Longmeadow, MA | ISO New England (ISNE) | 5.2 GWh | Sep 2019 | Dec 2024 | Solar |
| Greenfield Solar PV | NSTAR Electric Company | Greenfield, MA | ISO New England (ISNE) | 2.9 GWh | Dec 2018 | Dec 2024 | Solar |
| Hinsdale Solar PV | NSTAR Electric Company | Hinsdale, MA | ISO New England (ISNE) | 3.1 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 |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 3.1 GWh | Jan 2019 | Dec 2024 | Solar |
| Hampden Solar PV | NSTAR Electric Company | Hampden, MA | ISO New England (ISNE) | 5.9 GWh | Oct 2019 | Dec 2024 | Solar |
| Sunderland Solar PV | NSTAR Electric Company | Sunderland, MA | ISO New England (ISNE) | 1.7 GWh | Aug 2018 | Dec 2024 | Solar |
| Hatfield Solar PV | NSTAR Electric Company | Hatfield, MA | ISO New England (ISNE) | 5.7 GWh | Nov 2018 | Dec 2024 | Solar |
| East Springfield Solar PV | NSTAR Electric Company | Springfield, MA | ISO New England (ISNE) | 2.0 GWh | Sep 2018 | Dec 2024 | Solar |
| Ludlow Site 72 - Conti | NSTAR Electric Company | Ludlow, MA | ISO New England (ISNE) | 2.5 GWh | Jul 2018 | Dec 2024 | Solar |
| Palmer | AES Distributed Energy | Palmer, MA | ISO New England (ISNE) | 5.9 GWh | Sep 2019 | 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 |
| East Bridgewater Solar | Altus Power America Management, LLC | East Bridgewater, MA | ISO New England (ISNE) | 3.4 GWh | Oct 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 |
| Ashby Solar, LLC CSG | Ashby Solar, LLC | Fitchburg, MA | ISO New England (ISNE) | 3.0 GWh | Jun 2018 | Dec 2024 | Solar |
| Dudley Solar CSG | Dudley Solar, LLC | Dudley, MA | ISO New England (ISNE) | 2.8 GWh | Jul 2017 | Dec 2024 | Solar |
| Williamsburg | AES Distributed Energy | Goshen, MA | ISO New England (ISNE) | 6.6 GWh | Jun 2019 | Dec 2024 | Solar |
| Monson Solar, LLC | Monson Solar, LLC | Monson, MA | ISO New England (ISNE) | 3.3 GWh | Jul 2017 | Dec 2024 | Solar |
| Westminster Renewables, LLC CSG | Westminster Renewables, LLC | Westminster, MA | ISO New England (ISNE) | 2.0 GWh | Sep 2018 | Dec 2024 | Solar |
| Pittsfield 44 - M&W PV | NSTAR Electric Company | Pittsfield, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2018 | Dec 2024 | Solar |
| Plymouth Solar | NSTAR Electric Company | Plymouth, MA | ISO New England (ISNE) | 1.5 GWh | May 2018 | Dec 2024 | Solar |
| Dynamic - Walpole | AES Distributed Energy | Walpole, MA | ISO New England (ISNE) | 2.6 GWh | May 2017 | Dec 2024 | Solar |
| Barre Solar III LLC | AES Distributed Energy | Barre, MA | ISO New England (ISNE) | 1.5 GWh | Feb 2018 | Dec 2024 | Solar |
| BWC Origination 18 | BWC Origination 18, LLC | Mattapoisett, MA | ISO New England (ISNE) | 7.6 GWh | Nov 2018 | Dec 2024 | Solar |
| BWC Gibbs Brook | BWC Gibbs Brook, LLC | Wareham, MA | ISO New England (ISNE) | 6.4 GWh | Nov 2018 | Dec 2024 | Solar |
| BWC Wareham River | BWC Wareham River, LLC | Wareham, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2018 | Dec 2024 | Solar |
| BWC Harlow Brook | BWC Harlow Brook, LLC | Wareham, MA | ISO New England (ISNE) | 2.2 GWh | Nov 2018 | Dec 2024 | Solar |
| BWC Pocasset River | BWC Pocasset River, LLC | Wareham, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2018 | Dec 2024 | Solar |
| Winchendon Landfill Solar | Onyx Asset Services Group | Winchendon, MA | ISO New England (ISNE) | 2.8 GWh | Sep 2018 | Dec 2024 | Solar |
| Kearsarge GB | Kearsarge GB LLC | Great Barrington, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2018 | Dec 2024 | Solar |
| Kearsarge Uxbridge | Kearsarge Uxbridge LLC | Uxbridge, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2018 | Dec 2024 | Solar |
| Kearsarge Montague | Kearsarge Montague LLC | Montague, MA | ISO New England (ISNE) | 7.2 GWh | May 2018 | Dec 2024 | Solar |
| Kearsarge Wilmington | Kearsarge Wilmington LLC | Wilmington, MA | ISO New England (ISNE) | 2.3 GWh | Nov 2017 | Dec 2024 | Solar |
| Plainfield Community Solar LLC | Plainfield Solar LLC | Plainfield, MA | ISO New England (ISNE) | 3.4 GWh | Jan 2019 | Dec 2024 | Solar |
| Tolland Solar NG LLC | NuGen Capital Management | Tolland, MA | ISO New England (ISNE) | 5.0 GWh | Sep 2014 | Dec 2024 | Solar |
| Tanglewood Circle Solar 1 LLC | Tanglewood Circle Solar 1 LLC | Becket, MA | ISO New England (ISNE) | 7.8 GWh | Oct 2018 | Dec 2024 | Solar |
| West Water Street | City of Taunton | Taunton, MA | ISO New England (ISNE) | 1.8 GWh | Dec 2017 | Dec 2024 | Distillate Fuel Oil |
| Washburn Road Solar | REA Investments, LLC | Freetown, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2018 | Dec 2024 | Solar |
| CED Northampton Solar LLC Hybrid | Consolidated Edison Development Inc. | Northampton, MA | ISO New England (ISNE) | 6.8 GWh | Nov 2019 | Dec 2024 | Solar |
| Bridgewater Complex Co-Generation Plant | Massachusetts Department of Correction | Bridgewater, MA | ISO New England (ISNE) | 1.1 GWh | Oct 2015 | Dec 2024 | Natural Gas |
Browse Power Plants By Massachusetts Counties
Figures are based on March 2025 generation numbers.| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Norfolk County, MA | # 1 | 38 | 7.1 TWh |
| Worcester County, MA | # 2 | 190 | 4.0 TWh |
| Middlesex County, MA | # 3 | 68 | 3.8 TWh |
| Essex County, MA | # 4 | 39 | 2.1 TWh |
| Hampden County, MA | # 5 | 86 | 1.8 TWh |
| Plymouth County, MA | # 6 | 82 | 868.7 GWh |
| Bristol County, MA | # 7 | 70 | 765.7 GWh |
| County | State Rank | Active Plants | Mar 2025 Generation |
|---|---|---|---|
| Suffolk County, MA | # 8 | 13 | 456.2 GWh |
| Barnstable County, MA | # 9 | 22 | 378.3 GWh |
| Franklin County, MA | # 10 | 33 | 294.6 GWh |
| Hampshire County, MA | # 11 | 37 | 142.3 GWh |
| Berkshire County, MA | # 12 | 44 | 73.1 GWh |
| Dukes County, MA | # 13 | 7 | 9.9 GWh |