Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Oxford | CVI CleanCapital Solar 6 | Oxford, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2014 | Dec 2025 | Solar |
| Oxford Solar | Citizens Enterprises Corporation | Oxford, MA | ISO New England (ISNE) | 4.8 GWh | Jan 2020 | Dec 2025 | Solar |
| Joe Jenny | AMP MA Joe Jenny | Oxford, MA | ISO New England (ISNE) | 2.4 GWh | Apr 2018 | Dec 2024 | Solar |
| Indian Hill Solar LLC | CVI CleanCapital Solar 1 LLC | Palmer, MA | ISO New England (ISNE) | 1.4 GWh | Mar 2014 | Dec 2025 | Solar |
| Palmer Landfill | Syncarpha Bondsville, LLC | Palmer, MA | ISO New England (ISNE) | 6.0 GWh | Nov 2016 | Dec 2025 | Solar |
| Palmer | AES Distributed Energy | Palmer, MA | ISO New England (ISNE) | 5.7 GWh | Sep 2019 | Dec 2025 | Solar |
| WYM 1250 Palmer LLC | CVI CleanCapital Solar 6 | Palmer, MA | ISO New England (ISNE) | 1.5 GWh | Aug 2013 | Dec 2025 | Solar |
| Breckenridge Solar | Breckenridge Street Solar 1, LLC | Palmer, MA | ISO New England (ISNE) | 6.7 GWh | Oct 2020 | Dec 2024 | Solar |
| Peterson Road Solar | Peterson Road Solar, LLC | Palmer, MA | ISO New England (ISNE) | 4.3 GWh | Mar 2017 | Dec 2025 | Solar |
| Syncarpha Palmer, LLC | Syncarpha Palmer, LLC | Palmer, MA | ISO New England (ISNE) | 7.2 GWh | Nov 2015 | Dec 2025 | Solar |
| State Street Solar LLC | CVI CleanCapital Solar 1 LLC | Palmer, MA | ISO New England (ISNE) | 1.5 GWh | Mar 2014 | Dec 2025 | Solar |
| Browne Solar LLC | CVI CleanCapital Solar 1 LLC | Palmer, MA | ISO New England (ISNE) | 1.4 GWh | Mar 2014 | Dec 2025 | Solar |
| MMWEC Simple Cycle Gas Turbine | Massachusetts Mun Wholes Electric Co | Peabody, MA | ISO New England (ISNE) | 8.3 GWh | Jun 2024 | Dec 2025 | Distillate Fuel Oil : 69.0% Natural Gas : 31.0% |
| Waters River | City of Peabody - (MA) | Peabody, MA | ISO New England (ISNE) | 5.5 GWh | Nov 1971 | Dec 2025 | Natural Gas : 71.3% Distillate Fuel Oil : 28.7% |
| Onyx - Pembroke Landfill Solar | Onyx Asset Services Group | Pembroke, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2017 | Dec 2025 | Solar |
| Pepperell Hydro Power Plant | Eagle Creek Renewable Energy, LLC | Pepperell, MA | ISO New England (ISNE) | 2.3 GWh | Dec 1919 | May 2026 | Water |
| Peru (MA) | Sunrise on West Main Rd. LLC | Peru, MA | ISO New England (ISNE) | 5.2 GWh | Oct 2020 | Dec 2024 | Solar |
| Barton Acres Solar, LLC CSG | 38 Degrees North, LLC | Phillipston, MA | ISO New England (ISNE) | 1.6 GWh | Sep 2017 | 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 |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 136.2 GWh | Jun 1990 | May 2026 | Natural Gas : 96.9% Distillate Fuel Oil : 3.1% |
| Oak Leaf Solar XVII Community Solar | Navisun LLC | Pittsfield, MA | ISO New England (ISNE) | 47.0 MWh | Nov 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 |
| Downing Parkway Solar | Downing Parkway Solar LLC | Pittsfield, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2015 | Dec 2025 | Solar |
| Syncarpha Hancock III CSG | Syncarpha Hancock III, LLC | Pittsfield, MA | ISO New England (ISNE) | 1.4 GWh | Oct 2017 | Dec 2025 | Solar |
| East Acres Solar NG, LLC | NuGen Capital Management | Pittsfield, MA | ISO New England (ISNE) | 4.8 GWh | Mar 2017 | Dec 2025 | Solar |
| Pittsfield 44 - M&W PV | NSTAR Electric Company | Pittsfield, MA | ISO New England (ISNE) | 1.5 GWh | Jul 2018 | Dec 2025 | Solar |
| Plainfield Community Solar LLC | Plainfield Solar LLC | Plainfield, MA | ISO New England (ISNE) | 3.3 GWh | Jan 2019 | Dec 2025 | Solar |
| 5 Berry | Madison Energy Investments LLC | Plainsville, MA | ISO New England (ISNE) | 7.5 GWh | Aug 2023 | Dec 2025 | Solar |
| Solten Plainville 6000, LLC | Altus Power America Management, LLC | Plainville, MA | ISO New England (ISNE) | 6.9 GWh | Jul 2017 | Dec 2025 | Solar |
| Wilmarth Solar | Wilmarth Lane Solar 1, LLC | Plainville, MA | ISO New England (ISNE) | 8.0 GWh | Jan 2020 | Dec 2024 | Solar |
| Lepomis PV Energy LLC | CleanCapital Holdings | Plymouth, MA | ISO New England (ISNE) | 7.7 GWh | May 2014 | Dec 2025 | Solar |
| Camelot Wind LLC | Camelot Wind LLC | Plymouth, MA | ISO New England (ISNE) | 2.3 GWh | Sep 2012 | Dec 2024 | Wind |
| Plymouth Solar | NSTAR Electric Company | Plymouth, MA | ISO New England (ISNE) | 1.5 GWh | May 2018 | Dec 2025 | Solar |
| New Bedford (MA) Plymouth | BWC Origination 4, LLC | Plymouth, MA | ISO New England (ISNE) | 7.0 GWh | Jun 2014 | Dec 2025 | Solar |
| Future Generation Wind | RWE Clean Energy | Plymouth, MA | ISO New England (ISNE) | 12.2 GWh | Jul 2016 | Nov 2025 | Wind |
| Cedarville CSG | Altus Power America Management, LLC | Plymouth, MA | ISO New England (ISNE) | 914.0 MWh | Jun 2017 | Dec 2025 | Solar |
| Big George PV CSG | Altus Power America Management, LLC | Plymouth, MA | ISO New England (ISNE) | 1.4 GWh | Aug 2018 | Dec 2025 | Solar |
| Ring Road | Greenbacker Renewable Energy Corporation | Plympton, MA | ISO New England (ISNE) | 2.0 GWh | May 2025 | Dec 2025 | Solar |
| Upland | Greenbacker Renewable Energy Corporation | Plympton, MA | ISO New England (ISNE) | 3.3 GWh | May 2025 | Dec 2025 | Solar |
| Brook Street Solar 1 CSG | Brook Street Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 3.4 GWh | Jul 2017 | Dec 2025 | Solar |
| Redbrook Community Solar 1 | Redbrook Solar 1, LLC | Plympton, MA | ISO New England (ISNE) | 1.4 GWh | Sep 2017 | Dec 2025 | Solar |
| Plymouth Site 1 | CleanCapital Holdings | Plympton, MA | ISO New England (ISNE) | 7.5 GWh | Sep 2013 | 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 |
| Princeton Wind Farm | Town of Princeton - (MA) | Princeton, MA | ISO New England (ISNE) | 4.0 GWh | Dec 2009 | Dec 2025 | Wind |
| Boston Scientific Solar | RWE Clean Energy | Quincy, MA | ISO New England (ISNE) | 1.5 GWh | Nov 2012 | Dec 2025 | Solar |
| Randolph | Altus Power America Management, LLC | Randolph, MA | ISO New England (ISNE) | 5.8 GWh | Oct 2017 | Dec 2025 | Solar |
| GSPP Raynham TMLP, LLC CSG | Green Street Power Partners | Raynham, MA | ISO New England (ISNE) | 3.7 GWh | Jan 2019 | Dec 2025 | Solar |
| Rehoboth Solar | Citizens Enterprises Corporation | Rehoboth, MA | ISO New England (ISNE) | 2.9 GWh | Nov 2013 | 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 |
| Rounseville Solar | Rounseville Solar 1, LLC | Rochester, MA | ISO New England (ISNE) | 3.8 GWh | Jan 2020 | Dec 2025 | Solar |
| Old Middleboro Road Solar | Agilitas Energy, Inc. | Rochester, MA | ISO New England (ISNE) | 8.4 GWh | Dec 2022 | Dec 2025 | Solar |
| Quittacas Pond Solar | RWE Clean Energy | Rochester, MA | ISO New England (ISNE) | 5.5 GWh | Nov 2013 | Dec 2025 | Solar |
| Rochester MA 2 | Rochester MA 2 LLC | Rochester, MA | ISO New England (ISNE) | 1.4 GWh | Nov 2018 | Dec 2025 | Solar |
| Rockland Solar CSG | MN8 Energy LLC | Rockland, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2013 | Dec 2025 | Solar |
| Sherman | Great River Hydro, LLC | Rowe, MA | ISO New England (ISNE) | 27.8 GWh | Nov 1926 | Dec 2025 | Water |
| Holiday Hill Community Wind | Greenbacker Renewable Energy Corporation | Russell, MA | ISO New England (ISNE) | 11.6 GWh | Nov 2019 | Dec 2025 | Wind |
| Russell (MA) | Sunrise on Blandford Rd. LLC | Russell, MA | ISO New England (ISNE) | 5.0 GWh | Oct 2020 | Dec 2024 | Solar |
| Indian River Hydro | Eagle Creek Renewable Energy, LLC | Russell, MA | ISO New England (ISNE) | 1.8 GWh | Nov 1909 | Dec 2025 | Water |
| Texon Hydroelectric Project | Hitchcock Hydro, LLC | Russell, MA | ISO New England (ISNE) | 3.9 GWh | Dec 1981 | Dec 2025 | Water |
| Pleasantdale Road Community Solar | Pleasantdale Road Solar, LLC | Rutland, MA | ISO New England (ISNE) | 1.3 GWh | Aug 2017 | Dec 2025 | Solar |
| Wachusett Solar | Wachusett Solar, LLC | Rutland, MA | ISO New England (ISNE) | 3.3 GWh | Jul 2019 | Dec 2025 | Solar |
| Golden Hills Solar | Golden Hills Solar, LLC | Rutland, MA | ISO New England (ISNE) | 7.4 GWh | Aug 2017 | Dec 2025 | Solar |
| Upper Blackstone (MA) Treasure Valley | Nexamp Treasure Valley Solar, LLC | Rutland, MA | ISO New England (ISNE) | 6.2 GWh | Jun 2014 | 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 |
| Cape Cod Air Force Station - 6 SWS | US Space Force | Sagamore, MA | ISO New England (ISNE) | 6.2 GWh | Dec 2013 | May 2026 | Wind |
| Salem Harbor Power Development LP | Salem Harbor Power Development LP | Salem, MA | ISO New England (ISNE) | 1.6 TWh | Apr 2018 | May 2026 | Natural Gas |
| True North | CD US Solar MT1 LLC | Salisbury, MA | ISO New England (ISNE) | 6.0 GWh | Jul 2012 | Dec 2025 | Solar |
| Renew Canal 1 CSG LLC | NRG Renew Canal 1 LLC | Sandwich, MA | ISO New England (ISNE) | 1.9 GWh | May 2017 | Dec 2024 | Solar |
| ASD Cotuit MA Solar LLC | ASD Cotuit MA Solar LLC | Sandwich, MA | ISO New England (ISNE) | 2.2 GWh | Oct 2023 | Dec 2024 | Solar |
| Sandwich | LSE Ophiuchus LLC | Sandwich, MA | ISO New England (ISNE) | 4.6 GWh | Jun 2023 | Dec 2024 | Solar |
| Canal | Canal Generating LLC | Sandwich, MA | ISO New England (ISNE) | 546.2 GWh | May 1968 | May 2026 | Residual Fuel Oil : 55.3% Natural Gas : 34.6% Distillate Fuel Oil : 10.1% |
| Green Meadows | Altus Power America Management, LLC | Sandwich, MA | ISO New England (ISNE) | 5.1 GWh | Apr 2014 | Dec 2025 | Solar |
| 515 Main Saugus | 515 Main Saugus LLC | Saugus, MA | ISO New England (ISNE) | 1.9 GWh | Aug 2017 | Dec 2025 | Solar |
| Wheelabrator Saugus | Wheelabrator Environmental Systems | Saugus, MA | ISO New England (ISNE) | 180.5 GWh | Jul 1985 | May 2026 | Non-biogenic Municipal Solid Waste : 55.0% Biogenic Municipal Solid Waste : 45.0% |
| Savoy Solar PV | NSTAR Electric Company | Savoy, MA | ISO New England (ISNE) | 2.9 GWh | Jan 2019 | Dec 2025 | Solar |
| Scituate PV | AES Distributed Energy | Scituate, MA | ISO New England (ISNE) | 2.9 GWh | Sep 2013 | Dec 2025 | Solar |
| Scituate Wind | Scituate Wind LLC | Scituate, MA | ISO New England (ISNE) | 2.5 GWh | Feb 2012 | Dec 2025 | Wind |
| Woodland Avenue Solar 1 | Woodland Avenue Solar 1, LLC | Seekonk, MA | ISO New England (ISNE) | 8.7 GWh | Jul 2020 | Dec 2025 | Solar |
| 1 Commercial | Madison Energy Investments LLC | Sharon, MA | ISO New England (ISNE) | 622.0 MWh | Aug 2023 | Oct 2025 | Solar |
| Berkshire 1 | PPS Berkshire Solar LLC | Sheffield, MA | ISO New England (ISNE) | 2.4 GWh | Nov 2011 | Dec 2024 | Solar |
| Seaboard Sheffield, LLC | Navisun LLC | Sheffield, MA | ISO New England (ISNE) | 2.3 GWh | Mar 2021 | Dec 2025 | Solar |
| Shirley Landfill | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 1.3 GWh | Apr 2017 | Dec 2025 | Solar |
| EBZ Solar | Citizens Enterprises Corporation | Shirley, MA | ISO New England (ISNE) | 3.4 GWh | Dec 2012 | Dec 2025 | Solar |
| Devens | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 4.6 GWh | May 2014 | Dec 2025 | Solar |
| Shirley Water | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 2.8 GWh | Jul 2016 | Dec 2025 | Solar |
| Centech Gas Generator | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 428.0 MWh | Mar 2019 | Dec 2025 | Natural Gas |
| Shrewsbury Solar | RWE Clean Energy | Shrewsbury, MA | ISO New England (ISNE) | 4.1 GWh | Sep 2012 | Dec 2025 | Solar |
| Shrewsbury | Town of Shrewsbury - (MA) | Shrewsbury, MA | ISO New England (ISNE) | 1.9 GWh | Oct 1969 | Dec 2025 | Distillate Fuel Oil |
| SELCO Community Solar | Massachusetts Mun Wholes Electric Co | Shrewsbury, MA | ISO New England (ISNE) | 4.6 GWh | May 2018 | Dec 2025 | Solar |
| CoreSite - Somerville | Bloom Energy | Somerville, MA | ISO New England (ISNE) | 27.8 GWh | Aug 2020 | Dec 2025 | Natural Gas |
| Federal Road Solar 1, LLC CSG | Federal Road Solar 1, LLC | South Carver, MA | ISO New England (ISNE) | 8.3 GWh | Nov 2015 | 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 |
| Northbridge Solar | RWE Clean Energy | South Grafton, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2013 | Dec 2025 | Solar |
| Bird Machine Solar Farm | Bird Machine Solar Farm, LLC | South Walpole, MA | ISO New England (ISNE) | 5.9 GWh | Jul 2017 | Dec 2025 | Solar |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 2.6 GWh | Jan 2019 | Dec 2025 | Solar |
| Southbridge Landfill Gas-to-Energy | Southbridge Recycling and Disposal Park | Southbridge, MA | ISO New England (ISNE) | 9.6 GWh | Sep 2011 | Dec 2025 | Landfill Gas |
| Dudley River 3 Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.7 GWh | Oct 2017 | Dec 2025 | Solar |
| Cohasse Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.5 GWh | Sep 2017 | Dec 2025 | Solar |
| Dudley River Solar, LLC CSG | 38 Degrees North, LLC | Southbridge, MA | ISO New England (ISNE) | 1.6 GWh | Oct 2017 | 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 |
|---|---|---|---|
| Norfolk County, MA | # 1 | 40 | 6.7 TWh |
| Worcester County, MA | # 2 | 197 | 5.4 TWh |
| Essex County, MA | # 3 | 41 | 2.5 TWh |
| Middlesex County, MA | # 4 | 68 | 1.9 TWh |
| Hampden County, MA | # 5 | 89 | 1.9 TWh |
| Plymouth County, MA | # 6 | 84 | 814.7 GWh |
| Bristol County, MA | # 7 | 74 | 645.8 GWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|---|---|---|
| Barnstable County, MA | # 8 | 25 | 628.3 GWh |
| Suffolk County, MA | # 9 | 14 | 428.0 GWh |
| Dukes County, MA | # 10 | 7 | 376.1 GWh |
| Hampshire County, MA | # 11 | 39 | 226.9 GWh |
| Berkshire County, MA | # 12 | 46 | 198.8 GWh |
| Franklin County, MA | # 13 | 33 | 182.1 GWh |