Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Kearsarge Granby | Kearsarge Granby LLC | Granby, MA | ISO New England (ISNE) | 3.9 GWh | Feb 2017 | Dec 2023 | 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 |
| 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 |
| East Springfield Solar PV | NSTAR Electric Company | Springfield, MA | ISO New England (ISNE) | 2.0 GWh | Sep 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 |
| Palmer | AES Distributed Energy | Palmer, MA | ISO New England (ISNE) | 6.1 GWh | Sep 2019 | Dec 2023 | Solar |
| Hadley 2 Solar, LLC CSG | Hadley 2 Solar, LLC | Hadley, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2016 | Dec 2023 | Solar |
| East Bridgewater Solar | Altus Power America Management, LLC | East Bridgewater, MA | ISO New England (ISNE) | 3.5 GWh | Oct 2017 | Dec 2023 | Solar |
| Griffin Road Solar, LLC CSG | Griffin Road Solar, LLC | Charlton, MA | ISO New England (ISNE) | 3.3 GWh | Feb 2018 | Dec 2023 | Solar |
| Ashby Solar, LLC CSG | Ashby Solar, LLC | Fitchburg, MA | ISO New England (ISNE) | 2.8 GWh | Jun 2018 | Dec 2023 | Solar |
| Dudley Solar CSG | Dudley Solar, LLC | Dudley, MA | ISO New England (ISNE) | 2.9 GWh | Jul 2017 | Dec 2023 | Solar |
| Williamsburg | AES Distributed Energy | Goshen, MA | ISO New England (ISNE) | 6.0 GWh | Jun 2019 | Dec 2023 | Solar |
| Monson Solar, LLC | Monson Solar, LLC | Monson, MA | ISO New England (ISNE) | 3.3 GWh | Jul 2017 | Dec 2023 | Solar |
| Westminster Renewables, LLC CSG | Westminster Renewables, LLC | Westminster, MA | ISO New England (ISNE) | 2.6 GWh | Sep 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 |
| Lee Site 31 Solar | NSTAR Electric Company | Lee, MA | ISO New England (ISNE) | 2.4 GWh | Jul 2018 | Dec 2023 | Solar |
| Plymouth Solar | NSTAR Electric Company | Plymouth, MA | ISO New England (ISNE) | 1.5 GWh | May 2018 | Dec 2023 | Solar |
| Dynamic - Walpole | AES Distributed Energy | Walpole, MA | ISO New England (ISNE) | 3.0 GWh | May 2017 | Dec 2023 | Solar |
| Barre Solar III LLC | AES Distributed Energy | Barre, MA | ISO New England (ISNE) | 1.5 GWh | Feb 2018 | Dec 2023 | Solar |
| BWC Origination 18 | BWC Origination 18, LLC | Mattapoisett, MA | ISO New England (ISNE) | 7.7 GWh | Nov 2018 | Dec 2023 | Solar |
| BWC Gibbs Brook | BWC Gibbs Brook, LLC | Wareham, MA | ISO New England (ISNE) | 6.9 GWh | Nov 2018 | Dec 2023 | Solar |
| BWC Wareham River | BWC Wareham River, LLC | Wareham, MA | ISO New England (ISNE) | 1.8 GWh | Nov 2018 | Dec 2023 | Solar |
| BWC Harlow Brook | BWC Harlow Brook, LLC | Wareham, MA | ISO New England (ISNE) | 2.1 GWh | Nov 2018 | Dec 2023 | Solar |
| BWC Pocasset River | BWC Pocasset River, LLC | Wareham, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2018 | Dec 2023 | Solar |
| Winchendon Landfill Solar | Onyx Asset Services Group | Winchendon, MA | ISO New England (ISNE) | 3.1 GWh | Sep 2018 | Dec 2023 | Solar |
| Kearsarge GB | Kearsarge GB LLC | Great Barrington, MA | ISO New England (ISNE) | 3.3 GWh | Jul 2018 | Dec 2023 | Solar |
| Kearsarge Uxbridge | Kearsarge Uxbridge LLC | Uxbridge, MA | ISO New England (ISNE) | 3.4 GWh | Aug 2018 | Dec 2023 | Solar |
| Kearsarge Montague | Kearsarge Montague LLC | Montague, MA | ISO New England (ISNE) | 7.0 GWh | May 2018 | Dec 2023 | Solar |
| Kearsarge Wilmington | Kearsarge Wilmington LLC | Wilmington, MA | ISO New England (ISNE) | 2.1 GWh | Nov 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 |
| Tolland Solar NG LLC | NuGen Capital Management | Tolland, MA | ISO New England (ISNE) | 5.0 GWh | Sep 2014 | Dec 2023 | Solar |
| Tanglewood Circle Solar 1 LLC | Tanglewood Circle Solar 1 LLC | Becket, MA | ISO New England (ISNE) | 7.6 GWh | Oct 2018 | Dec 2023 | Solar |
| West Water Street | City of Taunton | Taunton, MA | ISO New England (ISNE) | 1.6 GWh | Dec 2017 | Dec 2023 | Distillate Fuel Oil |
| Washburn Road Solar | REA Investments, LLC | Freetown, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2018 | Dec 2023 | Solar |
| Happy Hollow CSG Hybrid | REA Investments, LLC | Winchendon, MA | ISO New England (ISNE) | 8.3 GWh | Sep 2019 | Dec 2023 | Solar |
| Bridgewater Complex Co-Generation Plant | Massachusetts Department of Correction | Bridgewater, MA | ISO New England (ISNE) | 9.5 GWh | Oct 2015 | Dec 2023 | Natural Gas |
| Hopkinton CSG | Altus Power America Management, LLC | Hopkinton, MA | ISO New England (ISNE) | 2.8 GWh | Mar 2019 | Dec 2023 | Solar |
| Dartmouth Farms Solar | Dartmouth Farms Solar, LLC | Dartmouth, MA | ISO New England (ISNE) | 3.7 GWh | Oct 2017 | Dec 2023 | Solar |
| Rounseville Solar | Rounseville Solar 1, LLC | Rochester, MA | ISO New England (ISNE) | 4.5 GWh | Jan 2020 | Dec 2023 | Solar |
| Norton | Madison Energy Holdings LLC | Norton, MA | ISO New England (ISNE) | 707.0 MWh | Feb 2023 | Dec 2023 | Solar |
| Dudley | AMP MA Dudley | Dudley, MA | ISO New England (ISNE) | 5.0 GWh | Jun 2018 | Dec 2023 | Solar |
| Joe Jenny | AMP MA Joe Jenny | Oxford, MA | ISO New England (ISNE) | 2.5 GWh | Apr 2018 | Dec 2023 | Solar |
| Westport Community Solar Garden | BWC Bass River LLC | Westport, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2017 | Dec 2023 | Solar |
| Mendon | BWC Box Pond LLC | Mendon, MA | ISO New England (ISNE) | 4.1 GWh | Nov 2017 | Dec 2023 | Solar |
| Dover | BWC Buckmaster Pond LLC | Dover, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2017 | Dec 2023 | Solar |
| Adirondack A+B Community Solar Garden | BWC Connecticut River LLC | Westport, MA | ISO New England (ISNE) | 8.8 GWh | Nov 2018 | Dec 2023 | Solar |
| Westport B Community Solar Garden | BWC Hamilton Brook LLC | Westport, MA | ISO New England (ISNE) | 7.4 GWh | Oct 2018 | Dec 2023 | Solar |
| Kearsarge Haverhill | Kearsarge Haverhill LLC | Haverhill, MA | ISO New England (ISNE) | 4.0 GWh | Feb 2021 | Dec 2023 | Solar |
| Dunstable Solar 1, LLC | AES Distributed Energy | Dunstable, MA | ISO New England (ISNE) | 10.9 GWh | Mar 2021 | Dec 2023 | Solar : 99.0% Electricity used for energy storage : 1.0% |
| Fairhaven MA 2 | Consolidated Edison Development Inc. | Fairhaven, MA | ISO New England (ISNE) | 5.2 GWh | Aug 2021 | Dec 2023 | Solar |
| Acushnet MA 1 | Navisun LLC | Acushnet, MA | ISO New England (ISNE) | 59.0 MWh | Nov 2023 | Dec 2023 | Solar |
| West Haydenville PJ Community Solar | AES Distributed Energy | Williamsburg, MA | ISO New England (ISNE) | 8.5 GWh | Aug 2022 | Dec 2023 | Solar |
| Brookwood Drive Community Solar | AES Distributed Energy | Westport, MA | ISO New England (ISNE) | 5.6 GWh | Jul 2022 | Dec 2023 | Solar |
| Old Middleboro Road Solar | Agilitas Energy, LLC | Rochester, MA | ISO New England (ISNE) | 9.7 GWh | Dec 2022 | Dec 2023 | Solar |
| ASD Cotuit MA Solar LLC | ASD Cotuit MA Solar LLC | Sandwich, MA | ISO New England (ISNE) | 110.0 MWh | - | Dec 2023 | Solar |
| Halifax Solar | NuGen Capital Management | Halifax, MA | ISO New England (ISNE) | 4.1 GWh | Jul 2015 | Dec 2023 | Solar |
| 580 River Solar | NuGen Capital Management | Winchendon, MA | ISO New England (ISNE) | 4.7 GWh | Aug 2018 | Dec 2023 | Solar |
| 115 G Fisher | Greenbacker Renewable Energy Corporation | Middleborough, MA | ISO New England (ISNE) | 1.6 GWh | Sep 2015 | Dec 2023 | Solar |
| 154 D Fisher | Greenbacker Renewable Energy Corporation | Middleborough, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2015 | Dec 2023 | Solar |
| UMass PV Lot 22 | Consolidated Edison Development Inc. | Amherst, MA | ISO New England (ISNE) | 3.2 GWh | Aug 2022 | Dec 2023 | Solar |
| ENGIE 2019 ProjectCo-MA1, LLC | ENGIE 2019 ProjectCo MA-1, LLC | Agawam, MA | ISO New England (ISNE) | 5.6 GWh | Feb 2021 | Dec 2023 | Solar |
| Fairhaven E | Fairhaven MA 1, LLC | Fairhaven, MA | ISO New England (ISNE) | 3.7 GWh | Jul 2021 | Dec 2023 | Solar |
| Indian River Hydro | Eagle Creek Renewable Energy, LLC | Russell, MA | ISO New England (ISNE) | 2.1 GWh | Nov 1909 | Dec 2023 | Water |
| MA CS Uxbridge Community Solar | MA CS Uxbridge, LLC | Uxbridge, MA | ISO New England (ISNE) | 4.4 GWh | Jan 2023 | Dec 2023 | Solar |
| Truck Stop | Strata Manager, LLC | West Stockridge, MA | ISO New England (ISNE) | 3.3 GWh | Oct 2017 | Dec 2023 | Solar |
| Whatley Renewables | Whatley Renewables, LLC | Whatley, MA | ISO New England (ISNE) | 1.7 GWh | Sep 2020 | Dec 2023 | Solar |
| Wachusett Solar | Wachusett Solar, LLC | Rutland, MA | ISO New England (ISNE) | 3.5 GWh | Jul 2019 | Dec 2023 | Solar |
| 3Colton | Madison Energy Holdings LLC | Millbury, MA | ISO New England (ISNE) | 1.6 GWh | Jun 2023 | Dec 2023 | Solar |
| Exelon Framingham LLC | Constellation Power, Inc | Framingham, MA | ISO New England (ISNE) | 981.4 MWh | Aug 1969 | Dec 2023 | Distillate Fuel Oil |
| Seaboard Sheffield, LLC | Navisun LLC | Sheffield, MA | ISO New England (ISNE) | 2.8 GWh | Mar 2021 | 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 |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2020 | Dec 2023 | Solar |
| Oxford Solar | Citizens Enterprises Corporation | Oxford, MA | ISO New England (ISNE) | 6.5 GWh | Jan 2020 | Dec 2023 | Solar |
| Falmouth 2 Solar | Citizens Enterprises Corporation | Falmouth, MA | ISO New England (ISNE) | 2.6 GWh | Aug 2021 | Dec 2023 | Solar |
| Ashland Solar | Citizens Enterprises Corporation | Ashland, MA | ISO New England (ISNE) | 6.8 GWh | Nov 2019 | Dec 2023 | Solar |
| French King Solar LLC | French King Solar LLC | Erving, MA | ISO New England (ISNE) | 7.3 GWh | Oct 2022 | Dec 2023 | Solar |
| MA Blackstone | Catalyze Blackstone 83 Federal Street Microgrid, LLC | Blackstone, MA | ISO New England (ISNE) | 4.6 GWh | Jun 2022 | Dec 2023 | Solar |
| Emerald Marshfields, LLC | Emerald Marshfield, LLC | Marshfield, MA | ISO New England (ISNE) | 4.6 GWh | Nov 2022 | Dec 2023 | Solar |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2012 | Dec 2023 | Solar |
| Woodland Avenue Solar 1 | Woodland Avenue Solar 1, LLC | Seekonk, MA | ISO New England (ISNE) | 8.7 GWh | Jul 2020 | Dec 2023 | Solar |
| Brockelman Road Solar 2 | Brockelman Road Solar 2, LLC | Lancaster, MA | ISO New England (ISNE) | 2.1 GWh | Jul 2021 | Dec 2023 | Solar |
| Kearsarge Ludlow LLC | Kearsarge Ludlow LLC | Ludlow, MA | ISO New England (ISNE) | 6.0 GWh | Nov 2020 | Dec 2023 | Solar |
| Kearsarge Acushnet | Kearsarge Acushnet LLC | Acushnet, MA | ISO New England (ISNE) | 3.5 GWh | Jan 2020 | Dec 2023 | Solar |
| Long Plain Solar | Long Plain Solar, LLC | Whatley, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2019 | Dec 2023 | Solar |
| Settlers Solar | Settlers Solar, LLC | Lunenberg, MA | ISO New England (ISNE) | 7.6 GWh | Nov 2020 | Dec 2023 | Solar |
| Griffin Road Solar 2 | Griffin Road Solar 2, LLC | Charlton, MA | ISO New England (ISNE) | 2.3 GWh | May 2020 | Dec 2023 | Solar |
| Brimfield | WEB Brimfield Solar LLC | Brimfield, MA | ISO New England (ISNE) | 3.3 GWh | Nov 2021 | Dec 2023 | Solar |
| Harbor Road Solar 1 | Harbor Road Solar 1, LLC | Cheshire, MA | ISO New England (ISNE) | 2.9 GWh | Nov 2021 | Dec 2023 | Solar |
| Electric Avenue Lunenburg Solar 1 | Electric Avenue Lunenburg Solar 1, LLC | Lunenburg, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2021 | Dec 2023 | Solar |
| WEB Brookfield | WEB Brookfield Solar LLC | Brookfield, MA | ISO New England (ISNE) | 5.9 GWh | Nov 2021 | Dec 2023 | Solar |
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 |