Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Pittsfield 44 - M&W PV | NSTAR Electric Company | Pittsfield, MA | ISO New England (ISNE) | 1.7 GWh | Jul 2018 | Dec 2024 | Solar |
| Partridge Solar | SoCore Energy LLC | Lanesborough, MA | ISO New England (ISNE) | 8.0 GWh | Aug 2022 | Dec 2024 | Solar |
| Peru (MA) | Sunrise on West Main Rd. LLC | Peru, MA | ISO New England (ISNE) | 5.2 GWh | Oct 2020 | Dec 2024 | Solar |
| Plympton Main Street Solar, LLC | REA Investments, LLC | Plympton, MA | ISO New England (ISNE) | 7.5 GWh | Nov 2023 | Dec 2024 | Solar |
| Plympton Lake Street Solar | REA Investments, LLC | Plympton, MA | ISO New England (ISNE) | 2.1 GWh | Nov 2022 | Dec 2024 | Solar |
| Pulpit Hill | LSE Fornax LLC | Amherst, MA | ISO New England (ISNE) | 7.2 GWh | Jun 2019 | Dec 2024 | Solar |
| Partridgeville Hybrid CSG | Partridgeville Road Solar 1, LLC | Athol, MA | ISO New England (ISNE) | 5.7 GWh | Dec 2019 | Dec 2024 | Solar |
| Palombo B Solar, LLC CSG | 38 Degrees North, LLC | Uxbridge, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2024 | Solar |
| Palombo Solar, LLC CSG | 38 Degrees North, LLC | Uxbridge, MA | ISO New England (ISNE) | 3.4 GWh | Nov 2017 | Dec 2024 | Solar |
| Partridge Hill Solar Hybrid | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 3.2 GWh | Jun 2020 | Dec 2024 | Solar |
| Plainfield Community Solar LLC | Plainfield Solar LLC | Plainfield, MA | ISO New England (ISNE) | 3.4 GWh | Jan 2019 | Dec 2024 | Solar |
| Plymouth Solar | NSTAR Electric Company | Plymouth, MA | ISO New England (ISNE) | 1.5 GWh | May 2018 | Dec 2024 | Solar |
| Putts Bridge | Central Rivers Power MA, LLC | Ludlow, MA | ISO New England (ISNE) | 16.0 GWh | Dec 1917 | Dec 2024 | Water |
| Palmer | AES Distributed Energy | Palmer, MA | ISO New England (ISNE) | 5.9 GWh | Sep 2019 | Dec 2024 | Solar |
| Peterson Road Solar | Peterson Road Solar, LLC | Palmer, MA | ISO New England (ISNE) | 4.4 GWh | Mar 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 |
| Palmer Landfill | Syncarpha Bondsville, LLC | Palmer, MA | ISO New England (ISNE) | 6.3 GWh | Nov 2016 | Dec 2024 | Solar |
| Plymouth Site 1 | CleanCapital Holdings | Plympton, MA | ISO New England (ISNE) | 7.2 GWh | Sep 2013 | Dec 2024 | Solar |
| Padelford Solar | Consolidated Edison Solutions Inc. | Berkley, MA | ISO New England (ISNE) | 3.4 GWh | Nov 2012 | Dec 2024 | Solar |
| Pittsfield Generating LP | Pittsfield Generating Company, LP | Pittsfield, MA | ISO New England (ISNE) | 120.9 GWh | Jun 1990 | Aug 2025 | Natural Gas : 98.6% Distillate Fuel Oil : 1.4% |
| Pepperell Hydro Power Plant | Eagle Creek Renewable Energy, LLC | Pepperell, MA | ISO New England (ISNE) | 3.7 GWh | Dec 1919 | Aug 2025 | Water |
| Princeton Wind Farm | Town of Princeton - (MA) | Princeton, MA | ISO New England (ISNE) | 3.7 GWh | Dec 2009 | Dec 2024 | Wind |
| Potter Station 2 | Town of Braintree - (MA) | Braintree, MA | ISO New England (ISNE) | 23.3 GWh | Jun 1963 | Dec 2024 | Natural Gas : 93.9% Distillate Fuel Oil : 6.1% |
Browse Power Plants By Massachusetts Counties
Figures are based on August 2025 generation numbers.| County | State Rank | Active Plants | Aug 2025 Generation |
|---|---|---|---|
| Norfolk County, MA | # 1 | 38 | 7.2 TWh |
| Worcester County, MA | # 2 | 190 | 4.7 TWh |
| Middlesex County, MA | # 3 | 68 | 3.8 TWh |
| Essex County, MA | # 4 | 39 | 2.5 TWh |
| Hampden County, MA | # 5 | 86 | 1.7 TWh |
| Bristol County, MA | # 6 | 71 | 947.8 GWh |
| Plymouth County, MA | # 7 | 84 | 852.5 GWh |
| County | State Rank | Active Plants | Aug 2025 Generation |
|---|---|---|---|
| Suffolk County, MA | # 8 | 13 | 429.4 GWh |
| Barnstable County, MA | # 9 | 23 | 427.2 GWh |
| Franklin County, MA | # 10 | 33 | 301.7 GWh |
| Hampshire County, MA | # 11 | 37 | 270.0 GWh |
| Berkshire County, MA | # 12 | 44 | 244.3 GWh |
| Dukes County, MA | # 13 | 7 | 9.9 GWh |