Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| 20 Bedford | Madison Energy Investments LLC | Bridgewater, MA | ISO New England (ISNE) | 146.0 MWh | Nov 2024 | Dec 2025 | Solar |
| Marston Mills Solar | SoCore Energy LLC | Marstons Mills, MA | ISO New England (ISNE) | 6.3 GWh | Nov 2021 | Dec 2025 | Solar |
| Apollo | Sunrise on Wing Ln. LLC | Acushnet, MA | ISO New England (ISNE) | 2.5 GWh | Aug 2021 | Dec 2025 | Solar |
| Adams Grove Solar | SoCore Energy LLC | Adams, MA | ISO New England (ISNE) | 6.0 GWh | Aug 2022 | Dec 2025 | Solar |
| Skyline Solar | SoCore Energy LLC | Lanesborough, MA | ISO New England (ISNE) | 8.2 GWh | Aug 2022 | Dec 2025 | Solar |
| Saddleback Solar | SoCore Energy LLC | Lanesborough, MA | ISO New England (ISNE) | 4.5 GWh | Aug 2022 | Dec 2025 | Solar |
| Partridge Solar | SoCore Energy LLC | Lanesborough, MA | ISO New England (ISNE) | 8.1 GWh | Aug 2022 | Dec 2025 | Solar |
| Westport (MA) | Sunrise on Drift Rd. LLC | Westport, MA | ISO New England (ISNE) | 3.5 GWh | Sep 2020 | Dec 2025 | Solar |
| Westhampton | Sunrise on Montague Rd. LLC | Westhampton, MA | ISO New England (ISNE) | 6.8 GWh | Nov 2020 | Dec 2025 | Solar |
| Tolland | Sunrise on Clubhouse Rd. LLC | Tolland, MA | ISO New England (ISNE) | 7.6 GWh | Nov 2020 | Dec 2025 | Solar |
| Russell (MA) | Sunrise on Blandford Rd. LLC | Russell, MA | ISO New England (ISNE) | 4.9 GWh | Oct 2020 | Dec 2025 | Solar |
| Peru (MA) | Sunrise on West Main Rd. LLC | Peru, MA | ISO New England (ISNE) | 4.5 GWh | Oct 2020 | Dec 2025 | Solar |
| New Marlborough | Sunrise on Knight Rd. LLC | New Marlborough, MA | ISO New England (ISNE) | 6.9 GWh | May 2021 | Dec 2025 | Solar |
| Overlook | Westbound Solar 3, LLC | Westminster, MA | ISO New England (ISNE) | 6.8 GWh | Feb 2023 | Dec 2025 | Solar |
| Central Heating Plant | University of Massachusetts Amherst | Amherst, MA | ISO New England (ISNE) | 79.6 GWh | Sep 2007 | Dec 2025 | Natural Gas : 96.3% Distillate Fuel Oil : 3.7% |
| Wendell MA 1 | Wendell MA 1 LLC | Wendell, MA | ISO New England (ISNE) | 1.2 GWh | Nov 2018 | Dec 2025 | Solar |
| Rochester MA 2 | Rochester MA 2 LLC | Rochester, MA | ISO New England (ISNE) | 1.4 GWh | Nov 2018 | Dec 2025 | Solar |
| Millis MA 1 | Millis MA 1 LLC | Millis, MA | ISO New England (ISNE) | 1.5 GWh | Oct 2018 | Dec 2025 | Solar |
| Millbury MA #1092 | Millbury MA #1092 LLC | Millbury, MA | ISO New England (ISNE) | 1.6 GWh | May 2019 | Dec 2025 | Solar |
| Downing Parkway Solar | Downing Parkway Solar LLC | Pittsfield, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2015 | Dec 2025 | Solar |
| Aegean Drive Solar | Aegean Drive Solar LLC | Methuen, MA | ISO New England (ISNE) | 2.4 GWh | Aug 2021 | Dec 2025 | Solar |
| 515 Main Saugus | 515 Main Saugus LLC | Saugus, MA | ISO New England (ISNE) | 1.9 GWh | Aug 2017 | Dec 2025 | Solar |
| 118 Echo | Madison Energy Investments LLC | Mashpee, MA | ISO New England (ISNE) | 814.0 MWh | Jun 2023 | Dec 2025 | Solar |
| Old Frontier Solar III | Old Frontier Solar III PV, LLC | South Deerfield, MA | ISO New England (ISNE) | 3.8 GWh | Aug 2022 | Dec 2025 | Solar |
| Ward Solar 1, LLC | REA Investments, LLC | Carver, MA | ISO New England (ISNE) | 3.4 GWh | Jan 2019 | Dec 2025 | Solar |
| Plympton Main Street Solar, LLC | REA Investments, LLC | Plympton, MA | ISO New England (ISNE) | 7.4 GWh | Nov 2023 | Dec 2025 | Solar |
| Plympton Lake Street Solar | REA Investments, LLC | Plympton, MA | ISO New England (ISNE) | 2.0 GWh | Nov 2022 | Dec 2025 | Solar |
| Southwick Solar, LLC Community Solar | Navisun LLC | Southwick, MA | ISO New England (ISNE) | 3.5 GWh | Apr 2025 | Dec 2025 | Solar |
| Oak Leaf Solar XVI Community Solar | Navisun LLC | Pittsfield, MA | ISO New England (ISNE) | 10.0 MWh | Nov 2025 | Dec 2025 | Solar |
| Oak Leaf Solar XVII Community Solar | Navisun LLC | Pittsfield, MA | ISO New England (ISNE) | 47.0 MWh | Nov 2025 | Dec 2025 | Solar |
| Sandwich | LSE Ophiuchus LLC | Sandwich, MA | ISO New England (ISNE) | 4.2 GWh | Jun 2023 | Dec 2025 | Solar |
| Monument Valley | LSE Lepus LLC | Great Barrington, MA | ISO New England (ISNE) | 3.1 GWh | Dec 2021 | Dec 2025 | Solar |
| Sturbridge Barn | LSE Ara LLC | Charlton, MA | ISO New England (ISNE) | 1.7 GWh | May 2018 | Dec 2025 | Solar |
| Pulpit Hill | LSE Fornax LLC | Amherst, MA | ISO New England (ISNE) | 7.2 GWh | Jun 2019 | Dec 2025 | Solar |
| GSPP NESV, LLC | Green Street Power Partners | Attleboro, MA | ISO New England (ISNE) | 1.6 GWh | Feb 2023 | Dec 2025 | Solar |
| 665 Scenic Highway | Madison Energy Investments LLC | Bourne, MA | ISO New England (ISNE) | 89.0 MWh | Nov 2022 | Dec 2025 | Solar |
| BWC Rams Horn Channel LLC | Navisun LLC | Beverly, MA | ISO New England (ISNE) | 5.6 GWh | Nov 2020 | Dec 2025 | Solar |
| Seaboard Sheffield, LLC | Navisun LLC | Sheffield, MA | ISO New England (ISNE) | 2.3 GWh | Mar 2021 | Dec 2025 | Solar |
| Seaboard Oxford, LLC | Navisun LLC | Oxford, MA | ISO New England (ISNE) | 2.7 GWh | Jul 2020 | Dec 2025 | Solar |
| Seaboard Charlton, LLC | Navisun LLC | Charlton, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2020 | Dec 2025 | Solar |
| OSG Solar 1 LLC | Navisun LLC | Orange, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2012 | Dec 2025 | Solar |
| Freetown MA 1, LLC | Navisun LLC | Freetown, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2022 | Dec 2025 | Solar |
| CVEC Round 4 Brewster Captn Golf Course | Freemans Way Solar Project 2019, LLC | Brewster, MA | ISO New England (ISNE) | 1.1 GWh | Feb 2022 | Dec 2025 | Solar |
| Upland | Greenbacker Renewable Energy Corporation | Plympton, MA | ISO New England (ISNE) | 3.3 GWh | May 2025 | Dec 2025 | Solar |
| Nationwide | Nationwide Solar Energy LLC | Lancaster, MA | ISO New England (ISNE) | 4.7 GWh | May 2021 | Dec 2025 | Solar |
| 5 Berry | Madison Energy Investments LLC | Plainsville, MA | ISO New England (ISNE) | 7.5 GWh | Aug 2023 | Dec 2025 | Solar |
| 401 South | Madison Energy Investments LLC | Dalton, MA | Southern Company Services, Inc. - Trans (SOCO) | 945.0 MWh | Nov 2023 | Dec 2025 | Solar |
| Pine Hill Westport | Greenbacker Renewable Energy Corporation | Westport, MA | ISO New England (ISNE) | 2.7 GWh | May 2025 | Dec 2025 | Solar |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 4.0 GWh | Feb 2020 | Dec 2025 | Solar |
| Oxford Solar | Citizens Enterprises Corporation | Oxford, MA | ISO New England (ISNE) | 4.8 GWh | Jan 2020 | Dec 2025 | Solar |
| Falmouth 2 Solar | Citizens Enterprises Corporation | Falmouth, MA | ISO New England (ISNE) | 2.7 GWh | Aug 2021 | Dec 2025 | Solar |
| Ashland Solar | Citizens Enterprises Corporation | Ashland, MA | ISO New England (ISNE) | 6.4 GWh | Nov 2019 | Dec 2025 | Solar |
| Ring Road | Greenbacker Renewable Energy Corporation | Plympton, MA | ISO New England (ISNE) | 2.0 GWh | May 2025 | Dec 2025 | Solar |
| French King Solar LLC | French King Solar LLC | Erving, MA | ISO New England (ISNE) | 7.9 GWh | Oct 2022 | Dec 2025 | Solar |
| MA Blackstone | Catalyze Blackstone 83 Federal Street Microgrid, LLC | Blackstone, MA | ISO New England (ISNE) | 6.6 GWh | Jun 2022 | Dec 2025 | Solar |
| Westport Stone & Sand Solar (CSG) | AES Clean Energy | Westport, MA | ISO New England (ISNE) | 6.8 GWh | Feb 2024 | Dec 2025 | Solar |
| Emerald Marshfields, LLC | Emerald Marshfield, LLC | Marshfield, MA | ISO New England (ISNE) | 2.3 GWh | Nov 2022 | Dec 2025 | Solar |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2012 | Dec 2025 | Solar |
| 3Colton | Madison Energy Holdings LLC | Millbury, MA | ISO New England (ISNE) | 4.9 GWh | Jun 2023 | Dec 2025 | Solar |
| WEB Brookfield | WEB Brookfield Solar LLC | Brookfield, MA | ISO New England (ISNE) | 5.7 GWh | Nov 2021 | Dec 2025 | Solar |
| Brimfield | WEB Brimfield Solar LLC | Brimfield, MA | ISO New England (ISNE) | 3.2 GWh | Nov 2021 | Dec 2025 | Solar |
| Town of Amherst Solar | Agilitas Energy, Inc. | Amherst, MA | ISO New England (ISNE) | 4.5 GWh | Jul 2022 | Dec 2025 | Solar |
| Fairhaven MA 2 | RWE Clean Energy | Fairhaven, MA | ISO New England (ISNE) | 4.3 GWh | Aug 2021 | Dec 2025 | Solar |
| 580 River Solar | NuGen Capital Management | Winchendon, MA | ISO New England (ISNE) | 4.4 GWh | Aug 2018 | Dec 2025 | Solar |
| Halifax Solar | NuGen Capital Management | Halifax, MA | ISO New England (ISNE) | 3.9 GWh | Jul 2015 | Dec 2025 | Solar |
| 299 Farm to Market Rd Hybrid(CSG) | 299F2M WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 5.2 GWh | Nov 2021 | Dec 2025 | Solar |
| 160 Tihonet Rd Hybrid(CSG) | 160TIH WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 9.9 GWh | Nov 2021 | Dec 2025 | Solar |
| 77 Farm to Market Rd Hybrid(CSG) | 77F2M WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 9.1 GWh | Nov 2021 | Dec 2025 | Solar |
| 71 Charlotte Furnace Rd Hybrid(CSG) | 71CFR WHAM8 Solar, LLC | Wareham, MA | ISO New England (ISNE) | 2.7 GWh | Nov 2021 | Dec 2025 | Solar : 99.8% |
| ASD Wallum MA Solar LLC(CSG) | ASD Wallum MA Solar LLC | Douglas, MA | ISO New England (ISNE) | 8.7 GWh | Dec 2021 | Dec 2025 | Solar |
| ASD Cotuit MA Solar LLC | ASD Cotuit MA Solar LLC | Sandwich, MA | ISO New England (ISNE) | 4.2 GWh | Oct 2023 | Dec 2025 | Solar |
| UMass Boston | MSS Energy Holdings, LLC (d.b.a. Calibrant Energy) | Dorchester, MA | ISO New England (ISNE) | 1.0 GWh | Dec 1971 | Dec 2025 | Solar |
| 59 Federal Rd(CSG) | 59FED WHAM8 Solar, LLC | Carver, MA | ISO New England (ISNE) | 11.2 GWh | Oct 2021 | Dec 2025 | Solar |
| 0 Hammond St CSG | 0HAM WHAM8 Solar, LLC | Carver, MA | ISO New England (ISNE) | 14.3 GWh | Sep 2021 | Dec 2025 | Solar |
| 276 Federal Rd(CSG) | 276FED WHAM8 Solar, LLC | Carver, MA | ISO New England (ISNE) | 9.4 GWh | Oct 2021 | Dec 2025 | Solar |
| Three Rivers Solar LLC | ASD Three Rivers Road MA Solar LLC | Wilbraham, MA | ISO New England (ISNE) | 5.5 GWh | Oct 2024 | Dec 2025 | Solar |
| Old Middleboro Road Solar | Agilitas Energy, Inc. | Rochester, MA | ISO New England (ISNE) | 8.4 GWh | Dec 2022 | Dec 2025 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 6.6 GWh | Oct 2021 | Dec 2025 | Solar |
| Brookwood Drive Community Solar | AES Distributed Energy | Westport, MA | ISO New England (ISNE) | 5.5 GWh | Jul 2022 | Dec 2025 | Solar |
| West Haydenville PJ Community Solar | AES Distributed Energy | Williamsburg, MA | ISO New England (ISNE) | 8.6 GWh | Aug 2022 | Dec 2025 | Solar : 99.8% |
| Acushnet MA 2 (CSG) | Navisun LLC | Acushnet, MA | ISO New England (ISNE) | 1.0 GWh | Feb 2024 | Dec 2025 | Solar |
| Acushnet MA 1 | Navisun LLC | Acushnet, MA | ISO New England (ISNE) | 1.0 GWh | Nov 2023 | Dec 2025 | Solar |
| Adirondack A+B Community Solar Garden | BWC Connecticut River LLC | Westport, MA | ISO New England (ISNE) | 8.7 GWh | Nov 2018 | Dec 2025 | Solar |
| Wilmarth Solar | Wilmarth Lane Solar 1, LLC | Plainville, MA | ISO New England (ISNE) | 7.9 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 |
| Joe Jenny | AMP MA Joe Jenny | Oxford, MA | ISO New England (ISNE) | 2.3 GWh | Apr 2018 | Dec 2025 | Solar |
| Westport Community Solar Garden | BWC Bass River LLC | Westport, MA | ISO New England (ISNE) | 1.7 GWh | Jun 2017 | Dec 2025 | Solar |
| Mendon | BWC Box Pond LLC | Mendon, MA | ISO New England (ISNE) | 3.4 GWh | Nov 2017 | Dec 2025 | Solar |
| Dover (MA) | BWC Buckmaster Pond LLC | Dover, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2017 | Dec 2025 | Solar |
| Kearsarge Upper Union | Kearsarge Upper Union LLC | Franklin, MA | ISO New England (ISNE) | 1.5 GWh | Feb 2023 | Dec 2025 | Solar |
| Dunstable Solar 1, LLC | AES Distributed Energy | Dunstable, MA | ISO New England (ISNE) | 8.4 GWh | Mar 2021 | Dec 2025 | Solar |
| Clark Road Solar 1, LLC | Clark Road Solar 1, LLC | Gardner, MA | ISO New England (ISNE) | 8.0 GWh | Nov 2020 | Dec 2025 | Solar |
| Blodgett Solar CSG | Blodgett Street Solar 1, LLC | Tyngsboro, MA | ISO New England (ISNE) | 9.3 GWh | Jul 2021 | 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 |
| Kearsarge William Way | Kearsarge William Way LLC | Bellingham, MA | ISO New England (ISNE) | 7.3 GWh | Nov 2021 | Dec 2025 | Solar |
| Westport B Community Solar Garden | BWC Hamilton Brook LLC | Westport, MA | ISO New England (ISNE) | 7.9 GWh | Oct 2018 | Dec 2025 | Solar |
| 115 G Fisher | Greenbacker Renewable Energy Corporation | Middleborough, MA | ISO New England (ISNE) | 1.5 GWh | Sep 2015 | Dec 2025 | Solar |
Browse Power Plants By Massachusetts Counties
Figures are based on August 2026 generation numbers.| County | State Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Berkshire County, MA | # 13 | 46 | 85.8 GWh |
| Franklin County, MA | # 12 | 33 | 172.4 GWh |
| Hampshire County, MA | # 11 | 39 | 226.3 GWh |
| Suffolk County, MA | # 10 | 14 | 427.6 GWh |
| Barnstable County, MA | # 9 | 25 | 531.6 GWh |
| Bristol County, MA | # 8 | 75 | 645.7 GWh |
| Plymouth County, MA | # 7 | 86 | 797.7 GWh |
| County | State Rank | Active Plants | Aug 2026 Generation |
|---|---|---|---|
| Dukes County, MA | # 6 | 7 | 879.6 GWh |
| Hampden County, MA | # 5 | 90 | 1.9 TWh |
| Middlesex County, MA | # 4 | 70 | 1.9 TWh |
| Essex County, MA | # 3 | 41 | 2.1 TWh |
| Worcester County, MA | # 2 | 200 | 4.9 TWh |
| Norfolk County, MA | # 1 | 40 | 5.9 TWh |