Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Joe Jenny | AMP MA Joe Jenny | Oxford, MA | ISO New England (ISNE) | 2.4 GWh | Apr 2018 | Dec 2024 | Solar |
| Aegean Drive Solar | Aegean Drive Solar LLC | Methuen, MA | ISO New England (ISNE) | 2.4 GWh | Aug 2021 | Dec 2025 | Solar |
| Town of Ware - Canadian Tree(CSG) | MA CS Ware West, LLC | Ware, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2021 | Dec 2024 | Solar |
| Indian Orchard PV Facility | Western Massachusetts Electric Company | Springfield, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2011 | Dec 2025 | Solar |
| Silver Lake Solar Photovoltaic Facility | Western Massachusetts Electric Company | Pittsfield, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2010 | Dec 2025 | Solar |
| 201 Sturbridge B | Altus Power America Management, LLC | Brimfield, MA | ISO New England (ISNE) | 2.5 GWh | May 2014 | Dec 2025 | Solar |
| Axio Green LLC | Altus Power America Management, LLC | Greenfield Township, MA | ISO New England (ISNE) | 2.5 GWh | May 2012 | Dec 2025 | Solar |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2012 | Dec 2025 | Solar |
| General Electric Aircraft Engines | General Electric Aircraft Engines | Lynn, MA | ISO New England (ISNE) | 2.5 GWh | Dec 1947 | May 2026 | Solar |
| Westborough Solar LLC | SunRay Power LLC | Westborough, MA | ISO New England (ISNE) | 2.5 GWh | Mar 2014 | Dec 2024 | Solar |
| 71 Charlotte Furnace Rd Hybrid(CSG) | 71CFR WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2021 | Dec 2024 | Solar |
| Electric Avenue Lunenburg Solar 1 | Electric Avenue Lunenburg Solar 1, LLC | Lunenburg, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2021 | Dec 2025 | Solar |
| Ludlow Site 72 - Conti | NSTAR Electric Company | Ludlow, MA | ISO New England (ISNE) | 2.5 GWh | Jul 2018 | Dec 2025 | Solar |
| Stow PV | AES Distributed Energy | Stow, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2013 | Dec 2025 | Solar |
| Scituate Wind | Scituate Wind LLC | Scituate, MA | ISO New England (ISNE) | 2.5 GWh | Feb 2012 | Dec 2025 | Wind |
| Easton Landfill | CleanCapital Holdings | Easton, MA | ISO New England (ISNE) | 2.5 GWh | Sep 2013 | Dec 2025 | Solar |
| Town of Lexington Solar | Syncarpha Lexington, LLC | Lexington, MA | ISO New England (ISNE) | 2.5 GWh | Apr 2017 | Dec 2025 | Solar |
| West Bridgewater AB CSG | MN8 Energy LLC | West Bridgewater, MA | ISO New England (ISNE) | 2.5 GWh | May 2017 | Dec 2025 | Solar |
| Citizens Agawam Landfill Solar | Citizens Enterprises Corporation | Agawam, MA | ISO New England (ISNE) | 2.6 GWh | Mar 2017 | Dec 2025 | Solar |
| Acushnet-Braley Road 1 | CleanCapital Holdings | Freetown, MA | ISO New England (ISNE) | 2.6 GWh | Dec 2012 | Dec 2025 | Solar |
| Brookfield Solar 2013 LLC | CVI CleanCapital Solar 6 | North Brookfield, MA | ISO New England (ISNE) | 2.6 GWh | Nov 2013 | Dec 2025 | Solar |
| Orange PV | Terraform Arcadia | Orange, MA | ISO New England (ISNE) | 2.6 GWh | Jun 2013 | Dec 2025 | Solar |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 2.6 GWh | Jan 2019 | Dec 2025 | Solar |
| Leominster | Syncarpha Massachusetts, LLC | Leominster, MA | ISO New England (ISNE) | 2.6 GWh | Apr 2015 | Dec 2025 | Solar |
| Hampshire College Hybrid | Tesla Inc. | Amherst, MA | ISO New England (ISNE) | 2.6 GWh | Apr 2017 | Dec 2025 | Solar |
| Dartmouth II Solar | RWE Clean Energy | Dartmouth, MA | ISO New England (ISNE) | 2.6 GWh | May 2012 | Dec 2025 | Solar |
| Hadley 2 Solar, LLC CSG | Hadley 2 Solar, LLC | Hadley, MA | ISO New England (ISNE) | 2.6 GWh | Nov 2016 | 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 |
| Fairview Farms Solar | NuGen Capital Management | Whately, MA | ISO New England (ISNE) | 2.6 GWh | May 2014 | Dec 2025 | Solar |
| Greenfield Solar PV | NSTAR Electric Company | Greenfield, MA | ISO New England (ISNE) | 2.6 GWh | Dec 2018 | Dec 2025 | Solar |
| Winchendon Solar | Altus Power America Management, LLC | Winchendon, MA | ISO New England (ISNE) | 2.7 GWh | Mar 2014 | Dec 2025 | Solar |
| Integrys MA Solar, LLC - Ashburnham Site | Integrys MA Solar, LLC | Ashburnham, MA | ISO New England (ISNE) | 2.7 GWh | Nov 2013 | Dec 2025 | Solar |
| CED Westfield Solar, LLC | RWE Clean Energy | Westfield, MA | ISO New England (ISNE) | 2.7 GWh | Jul 2016 | Dec 2025 | Solar |
| RGS-Rutland VNM SREC II Project (MA) | TerraForm Solar XVII, LLC | Rutland, MA | ISO New England (ISNE) | 2.7 GWh | Oct 2015 | Dec 2025 | Solar |
| Seaboard Oxford, LLC | Navisun LLC | Oxford, MA | ISO New England (ISNE) | 2.7 GWh | Jul 2020 | Dec 2025 | Solar |
| Pine Hill Westport | Greenbacker Renewable Energy Corporation | Westport, MA | ISO New England (ISNE) | 2.7 GWh | May 2025 | Dec 2025 | Solar |
| Syncarpha Hancock I CSG | Syncarpha Hancock I, LLC | Hancock, MA | ISO New England (ISNE) | 2.7 GWh | Oct 2017 | Dec 2025 | Solar |
| Gardner Solar 1 | Gardner Solar 1, LLC | Gardner, MA | ISO New England (ISNE) | 2.7 GWh | Apr 2014 | Dec 2025 | Solar |
| Falmouth 2 Solar | Citizens Enterprises Corporation | Falmouth, MA | ISO New England (ISNE) | 2.7 GWh | Aug 2021 | Dec 2025 | Solar |
| UMass PV Lot 22 | RWE Clean Energy | Amherst, MA | ISO New England (ISNE) | 2.7 GWh | Aug 2022 | Dec 2025 | Solar |
| Harbor Road Solar 1 | Harbor Road Solar 1, LLC | Cheshire, MA | ISO New England (ISNE) | 2.7 GWh | Nov 2021 | Dec 2025 | Solar |
| Winchendon Landfill Solar | Onyx Asset Services Group | Winchendon, MA | ISO New England (ISNE) | 2.8 GWh | Sep 2018 | Dec 2024 | Solar |
| Weston Landfill Solar | Ameresco, Inc - Weston | Weston, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2016 | Dec 2025 | Solar |
| Syncarpha Hancock II CSG | Syncarpha Hancock II, LLC | Hancock, MA | ISO New England (ISNE) | 2.8 GWh | Oct 2017 | Dec 2025 | Solar |
| Hinsdale Solar PV | NSTAR Electric Company | Hinsdale, MA | ISO New England (ISNE) | 2.8 GWh | Dec 2018 | Dec 2025 | Solar |
| KS Solar Six LLC | Kearsarge Solar LLC | Hubbardston, MA | ISO New England (ISNE) | 2.8 GWh | Nov 2013 | Dec 2025 | Solar |
| Hurteau Solar Project Hybrid | AES Distributed Energy | Uxbridge, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2020 | Dec 2025 | Solar |
| Syncarpha Halifax Hybrid CSG | Syncarpha Halifax, LLC | Halifax, MA | ISO New England (ISNE) | 2.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Dudley Solar CSG | Dudley Solar, LLC | Dudley, MA | ISO New England (ISNE) | 2.8 GWh | Jul 2017 | Dec 2025 | Solar |
| Truck Stop | LSE Corona Austrina LLC | West Stockridge, MA | ISO New England (ISNE) | 2.8 GWh | Oct 2017 | Dec 2024 | Solar |
| Easthampton Landfill-City of Easthampton | CleanCapital Holdings | Easthampton, MA | ISO New England (ISNE) | 2.8 GWh | May 2012 | Dec 2025 | Solar |
| Ayers Village Solar | Altus Power America Management, LLC | Methuen, MA | ISO New England (ISNE) | 2.8 GWh | May 2014 | Dec 2025 | Solar |
| Wareham MA 1 Community Solar | Navisun LLC | Wareham, MA | ISO New England (ISNE) | 2.8 GWh | Aug 2016 | 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 |
| Hopkinton CSG | Altus Power America Management, LLC | Hopkinton, MA | ISO New England (ISNE) | 2.8 GWh | Mar 2019 | Dec 2025 | Solar |
| Shirley Water | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 2.8 GWh | Jul 2016 | Dec 2025 | Solar |
| Kearsarge 100 Sohier Rd | Kearsarge Beverly LLC | Beverly, MA | ISO New England (ISNE) | 2.9 GWh | Apr 2023 | Dec 2025 | Solar |
| Savoy Solar PV | NSTAR Electric Company | Savoy, MA | ISO New England (ISNE) | 2.9 GWh | Jan 2019 | Dec 2025 | Solar |
| Oak Bluffs Diesel Generating Facility | Vineyard Reliability LLC | Oak Bluffs, MA | ISO New England (ISNE) | 2.9 GWh | Dec 1968 | Sep 2025 | Distillate Fuel Oil |
| Bashaw Solar CSG 1, LLC | Bashaw Solar 1, LLC | Newbury, MA | ISO New England (ISNE) | 2.9 GWh | Mar 2017 | Dec 2025 | Solar |
| Ashby Solar, LLC CSG | Ashby Solar, LLC | Fitchburg, MA | ISO New England (ISNE) | 2.9 GWh | Jun 2018 | Dec 2025 | Solar |
| Hatfield Renewables Community Solar | Hatfield Renewables, LLC | Hatfield, MA | ISO New England (ISNE) | 2.9 GWh | Aug 2017 | Dec 2025 | Solar |
| Chicopee River Solar | Citizens Enterprises Corporation | Springfield, MA | ISO New England (ISNE) | 2.9 GWh | Dec 2014 | Dec 2025 | Solar |
| Rehoboth Solar | Citizens Enterprises Corporation | Rehoboth, MA | ISO New England (ISNE) | 2.9 GWh | Nov 2013 | 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 |
| Kearsarge GB | Kearsarge GB LLC | Great Barrington, MA | ISO New England (ISNE) | 2.9 GWh | Jul 2018 | Dec 2025 | Solar |
| CES Sterling LLC | SunEdison LLC | Sterling, MA | ISO New England (ISNE) | 2.9 GWh | Jan 2013 | Dec 2025 | Solar |
| DG Tufts Knoll LLC CSG | DG Tufts Knoll, LLC | North Grafton, MA | ISO New England (ISNE) | 2.9 GWh | Jul 2017 | Dec 2025 | Solar |
| Partridge Hill Solar Hybrid | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 2.9 GWh | Jun 2020 | Dec 2025 | Solar |
| Scituate PV | AES Distributed Energy | Scituate, MA | ISO New England (ISNE) | 2.9 GWh | Sep 2013 | Dec 2025 | Solar |
| Cabot Holyoke | City of Holyoke Gas and Elec Dept - (MA) | Holyoke, MA | ISO New England (ISNE) | 3.0 GWh | Dec 1892 | Dec 2025 | Water |
| Kearsarge Acushnet | Kearsarge Acushnet LLC | Acushnet, MA | ISO New England (ISNE) | 3.0 GWh | Jan 2020 | 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 |
| Kearsarge Gill | Kearsarge Gill LLC | Gill, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2017 | Dec 2025 | Solar |
| GSPP Devens, LLC | Green Street Power Partners | Ayer, MA | ISO New England (ISNE) | 3.0 GWh | Dec 2018 | Dec 2025 | Solar |
| Seaboard Charlton, LLC | Navisun LLC | Charlton, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2020 | Dec 2025 | Solar |
| Lakeville Solar | C2 MA Lakeville, LLC | Lakeville, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2018 | Dec 2025 | Solar |
| Ashby Duffy CSG Solar Farm | LSE Cassiopeia LLC | Ashby, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2017 | Dec 2025 | Solar |
| Fairhaven E | Agilitas Energy, Inc. | Fairhaven, MA | ISO New England (ISNE) | 3.1 GWh | Jul 2021 | Dec 2025 | Solar |
| Charlemont A | Agilitas Energy, Inc. | Charlemont, MA | ISO New England (ISNE) | 3.1 GWh | Aug 2021 | Dec 2025 | Solar |
| Centaurus Solar - MA | LSE Centaurus LLC | Ashland, MA | ISO New England (ISNE) | 3.1 GWh | Oct 2016 | Dec 2025 | Solar |
| Carver MA 1 Community Solar | Navisun LLC | Carver, MA | ISO New England (ISNE) | 3.1 GWh | Aug 2016 | Dec 2025 | Solar |
| Rail Trail | Altus Power America Management, LLC | Great Barrington, MA | ISO New England (ISNE) | 3.1 GWh | Apr 2016 | Dec 2025 | Solar |
| Kearsarge Montague BD(CSG) | Kearsarge Montague BD LLC | Montague, MA | ISO New England (ISNE) | 3.1 GWh | Oct 2021 | Dec 2025 | Solar |
| Sampson Road Community Solar | Sampson Road Solar, LLC | Charlton, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2017 | Dec 2025 | Solar |
| Oxford | CVI CleanCapital Solar 6 | Oxford, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2014 | Dec 2025 | Solar |
| Fairhaven Wind | Fairhaven Wind LLC | Fairhaven, MA | ISO New England (ISNE) | 3.1 GWh | Mar 2012 | Dec 2025 | Wind |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2012 | Dec 2025 | Solar |
| Monument Valley | LSE Lepus LLC | Great Barrington, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2021 | Dec 2024 | Solar |
| Williams College - Campus CHP | President & Trustees of Williams College | Williamstown, MA | ISO New England (ISNE) | 3.2 GWh | Feb 2003 | Dec 2025 | Natural Gas : 98.4% Distillate Fuel Oil : 1.6% |
| Monson Solar, LLC | Monson Solar, LLC | Monson, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2017 | Dec 2025 | Solar |
| Sutton Solar CSG | Sutton Solar, LLC | Sutton, MA | ISO New England (ISNE) | 3.2 GWh | Oct 2016 | Dec 2025 | Solar |
| Downing Parkway Solar | Downing Parkway Solar LLC | Pittsfield, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2015 | Dec 2025 | Solar |
| Griffin Road Solar, LLC CSG | Griffin Road Solar, LLC | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Feb 2018 | Dec 2025 | Solar |
| Northbridge Solar | RWE Clean Energy | South Grafton, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2013 | Dec 2025 | Solar |
| Depot Hill Solar CSG | CCC Solar Holdings LLC | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Sep 2016 | Dec 2025 | Solar |
| Brimfield | WEB Brimfield Solar LLC | Brimfield, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2021 | Dec 2025 | Solar |
| Douglas Solar | RWE Clean Energy | Douglas, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2012 | Dec 2025 | Solar |
| DG Foxborough Elm CSG | DG Foxborough Elm LLC | Foxborough, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2017 | Dec 2025 | Solar |
| Hadley Solar NG, LLC | NuGen Capital Management | Hadley, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2014 | 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 |
|---|---|---|---|
| Franklin County, MA | # 13 | 33 | 182.1 GWh |
| Berkshire County, MA | # 12 | 46 | 198.8 GWh |
| Hampshire County, MA | # 11 | 39 | 226.9 GWh |
| Dukes County, MA | # 10 | 7 | 376.1 GWh |
| Suffolk County, MA | # 9 | 14 | 428.0 GWh |
| Barnstable County, MA | # 8 | 25 | 628.3 GWh |
| Bristol County, MA | # 7 | 74 | 645.8 GWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Plymouth County, MA | # 6 | 84 | 814.7 GWh |
| Hampden County, MA | # 5 | 89 | 1.9 TWh |
| Middlesex County, MA | # 4 | 68 | 1.9 TWh |
| Essex County, MA | # 3 | 41 | 2.5 TWh |
| Worcester County, MA | # 2 | 197 | 5.4 TWh |
| Norfolk County, MA | # 1 | 40 | 6.7 TWh |