Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| Syncarpha Westminster Hybrid CSG | Syncarpha Westminster, LLC | Westminster, MA | ISO New England (ISNE) | 6.4 GWh | Oct 2022 | Dec 2023 | Solar |
| Syncarpha Millbury Hybrid (CSG) | Syncarpha Millbury, LLC | Millbury, MA | ISO New England (ISNE) | 7.8 GWh | Sep 2022 | Dec 2023 | Solar |
| Syncarpha Tewksbury Hybrid CSG | Syncarpha Tewksbury, LLC | Tewksbury, MA | ISO New England (ISNE) | 4.1 GWh | Jan 2022 | Dec 2023 | Solar |
| Syncarpha Northbridge I Hybrid(CSG) | Syncarpha Northbridge I, LLC | Whitinsville, MA | ISO New England (ISNE) | 8.6 GWh | Nov 2021 | Dec 2023 | Solar |
| Syncarpha Leicester Hybrid CSG | Syncarpha Leicester, LLC | Leicester, MA | ISO New England (ISNE) | 4.4 GWh | May 2021 | Dec 2023 | Solar : 99.5% Electricity used for energy storage : 0.5% |
| Seaboard Sheffield, LLC | Navisun LLC | Sheffield, MA | ISO New England (ISNE) | 2.8 GWh | Mar 2021 | Dec 2023 | Solar |
| Syncarpha Northbridge II Hybrid CSG | Syncarpha Northbridge II, LLC | Whitinsville, MA | ISO New England (ISNE) | 8.3 GWh | Mar 2021 | Dec 2023 | Solar |
| Syncarpha Puddon I Hybrid CSG | Syncarpha Puddon I, LLC | Northbridge, MA | ISO New England (ISNE) | 8.9 GWh | Feb 2021 | Dec 2022 | Solar |
| Syncarpha Puddon II Hybrid CSG | Syncarpha Puddon II, LLC | Northbridge, MA | ISO New England (ISNE) | 9.3 GWh | Feb 2021 | Dec 2022 | Solar |
| Sutton Solar 2, LLC CSG | Sutton Solar 2, LLC | Sutton, MA | ISO New England (ISNE) | 1.3 GWh | Nov 2020 | Dec 2023 | Solar |
| Settlers Solar | Settlers Solar, LLC | Lunenberg, MA | ISO New England (ISNE) | 7.3 GWh | Nov 2020 | Dec 2023 | Solar |
| Syncarpha Northampton Hybrid CSG | Syncarpha Northampton, LLC | Northampton, MA | ISO New England (ISNE) | 5.0 GWh | Nov 2020 | Dec 2023 | Solar |
| Seaboard Charlton, LLC | Navisun LLC | Charlton, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2020 | Dec 2023 | Solar |
| Syncarpha Halifax Hybrid CSG | Syncarpha Halifax, LLC | Halifax, MA | ISO New England (ISNE) | 2.7 GWh | Nov 2020 | Dec 2023 | Solar : 99.0% |
| Seaboard Oxford, LLC | Navisun LLC | Oxford, MA | ISO New England (ISNE) | 2.7 GWh | Jul 2020 | Dec 2023 | Solar |
| Sunpin Blandford | Blandford Sun, LLC | Southwick, MA | ISO New England (ISNE) | 6.2 GWh | May 2020 | Nov 2023 | Solar |
| Spencer Solar MA | Citizens Enterprises Corporation | Spencer, MA | ISO New England (ISNE) | 2.8 GWh | Feb 2020 | Dec 2023 | Solar |
| Syncarpha Blandford Hybrid CSG | Syncarpha Blandford, LLC | Blandford, MA | ISO New England (ISNE) | 8.1 GWh | Nov 2019 | Dec 2023 | Solar |
| Signature Breads Chelsea | JDC 65R Owner, LLC | Chelsea, MA | ISO New England (ISNE) | 2.0 MWh | Apr 2019 | Dec 2023 | Distillate Fuel Oil |
| Southampton Solar PV | NSTAR Electric Company | Southampton, MA | ISO New England (ISNE) | 2.6 GWh | Jan 2019 | Dec 2023 | Solar |
| Savoy Solar PV | NSTAR Electric Company | Savoy, MA | ISO New England (ISNE) | 3.1 GWh | Jan 2019 | Dec 2023 | Solar |
| Southwick Solar PV | NSTAR Electric Company | Southwick, MA | ISO New England (ISNE) | 8.2 GWh | Dec 2018 | Aug 2024 | Solar |
| Springfield Solar PV | NSTAR Electric Company | Springfield, MA | ISO New England (ISNE) | 6.2 GWh | Dec 2018 | Dec 2023 | Solar |
| Sunderland Solar PV | NSTAR Electric Company | Sunderland, MA | ISO New England (ISNE) | 1.7 GWh | Aug 2018 | Dec 2023 | Solar |
| SELCO Community Solar | Massachusetts Mun Wholes Electric Co | Shrewsbury, MA | ISO New England (ISNE) | 4.9 GWh | May 2018 | Dec 2023 | Solar |
| Salem Harbor Power Development LP | Salem Harbor Power Development LP | Salem, MA | ISO New England (ISNE) | 1.0 TWh | Apr 2018 | Aug 2024 | Natural Gas |
| Stafford St 2 Community Solar | Stafford St Solar 2, LLC | Lecister, MA | ISO New England (ISNE) | 3.1 GWh | Apr 2018 | Dec 2023 | Solar |
| Sampson Road Community Solar | Sampson Road Solar, LLC | Charlton, MA | ISO New England (ISNE) | 3.1 GWh | Nov 2017 | Dec 2023 | Solar |
| St. Joseph's Solar, LLC CSG | 38 Degrees North, LLC | Charlton, MA | ISO New England (ISNE) | 1.6 GWh | Nov 2017 | Dec 2023 | Solar |
| Stafford St Solar 3 CSG | Stafford St Solar 3, LLC | Leicester, MA | ISO New England (ISNE) | 1.7 GWh | Nov 2017 | Dec 2023 | Solar |
| Stafford St Solar 1 CSG | Stafford St Solar 1, LLC | Leicester, MA | ISO New England (ISNE) | 11.6 GWh | Nov 2017 | Dec 2023 | Solar |
| Syncarpha Hancock I CSG | Syncarpha Hancock I, LLC | Hancock, MA | ISO New England (ISNE) | 2.9 GWh | Oct 2017 | Dec 2023 | Solar |
| Syncarpha Hancock II CSG | Syncarpha Hancock II, LLC | Hancock, MA | ISO New England (ISNE) | 3.1 GWh | Oct 2017 | Dec 2023 | Solar |
| Syncarpha Hancock III CSG | Syncarpha Hancock III, LLC | Pittsfield, MA | ISO New England (ISNE) | 1.5 GWh | Oct 2017 | Dec 2023 | Solar |
| Solten Plainville 6000, LLC | Altus Power America Management, LLC | Plainville, MA | ISO New England (ISNE) | 6.9 GWh | Jul 2017 | Dec 2023 | Solar |
| Smith & Wesson at Springfield MA PV | Luminace Solar Massachusetts, LLC | Springfield, MA | ISO New England (ISNE) | 2.3 GWh | Jun 2017 | Dec 2023 | Solar |
| Shirley Landfill | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 1.4 GWh | Apr 2017 | Dec 2023 | Solar |
| Spring Street Solar 1 CSG | Spring Street Solar 1, LLC | Carver, MA | ISO New England (ISNE) | 4.8 GWh | Feb 2017 | Dec 2023 | Solar |
| Syncarpha Still River, LLC CSG | Syncarpha Still River, LLC | Bolton, MA | ISO New England (ISNE) | 3.5 GWh | Nov 2016 | Dec 2023 | Solar |
| SJA Solar LLC-Solterra Monastery CSG | SJA Solar, LLC | Spencer, MA | ISO New England (ISNE) | 72.5 GWh | Nov 2016 | Dec 2023 | Solar |
| Syncarpha Freetown | Marie's Way Solar I, LLC | Freetown, MA | ISO New England (ISNE) | 6.6 GWh | Oct 2016 | Dec 2023 | Solar |
| Sutton Solar CSG | Sutton Solar, LLC | Sutton, MA | ISO New England (ISNE) | 3.1 GWh | Oct 2016 | Dec 2023 | Solar |
| Shirley Water | Altus Power America Management, LLC | Shirley, MA | ISO New England (ISNE) | 2.9 GWh | Jul 2016 | Dec 2023 | Solar |
| Shuman Solar | NuGen Capital Management | Stoughton, MA | ISO New England (ISNE) | 2.2 GWh | Mar 2016 | Dec 2023 | Solar |
| Southbridge Solar | AES Distributed Energy | Southbridge, MA | ISO New England (ISNE) | 2.3 GWh | Feb 2016 | Aug 2024 | Solar |
| Syncarpha Palmer, LLC | Syncarpha Palmer, LLC | Palmer, MA | ISO New England (ISNE) | 7.7 GWh | Nov 2015 | Dec 2023 | Solar |
| Spring Hill Road | AES Distributed Energy | Barre, MA | ISO New England (ISNE) | 2.5 GWh | Nov 2015 | Mar 2024 | Solar |
| Shaffer | CD US Solar MT3, LLC | Billerica, MA | ISO New England (ISNE) | 5.6 GWh | Aug 2014 | Dec 2023 | Solar |
| Sullivan Solar | Altus Power America Management, LLC | New Bedford, MA | ISO New England (ISNE) | 2.0 GWh | Jul 2014 | Dec 2023 | Solar |
| Stone Hill Solar CSG | MN8 Energy LLC | North Easton, MA | ISO New England (ISNE) | 3.1 GWh | Jun 2014 | Dec 2023 | Solar |
| Southern Sky Renew Energy Berkley LLC | Southern Sky Renewable Energy Berkley, LLC | Berkley, MA | ISO New England (ISNE) | 3.3 GWh | May 2014 | Dec 2023 | Solar |
| Stetson Road Solar - Barre I | Kearsarge Solar LLC | Barre, MA | ISO New England (ISNE) | 2.8 GWh | Apr 2014 | Dec 2023 | Solar |
| State Street Solar LLC | CVI CleanCapital Solar 1 LLC | Palmer, MA | ISO New England (ISNE) | 1.2 GWh | Mar 2014 | Dec 2023 | Solar |
| Southbridge PV | Terraform Arcadia | Southbridge, MA | ISO New England (ISNE) | 3.6 GWh | Dec 2013 | Dec 2023 | Solar |
| Stow PV | AES Distributed Energy | Stow, MA | ISO New England (ISNE) | 2.3 GWh | Nov 2013 | Dec 2023 | Solar |
| Sudbury Landfill | Heliovaas LLC | Sudbury, MA | ISO New England (ISNE) | 1.5 GWh | Nov 2013 | Dec 2023 | Solar |
| Scituate PV | AES Distributed Energy | Scituate, MA | ISO New England (ISNE) | 3.6 GWh | Sep 2013 | Dec 2023 | Solar |
| Shrewsbury Solar | Consolidated Edison Development Inc. | Shrewsbury, MA | ISO New England (ISNE) | 4.1 GWh | Sep 2012 | Dec 2023 | Solar |
| Scituate Wind | Scituate Wind LLC | Scituate, MA | ISO New England (ISNE) | 1.9 GWh | Feb 2012 | Dec 2023 | Wind |
| Southbridge Landfill Gas-to-Energy | Southbridge Recycling and Disposal Park | Southbridge, MA | ISO New England (ISNE) | 11.7 GWh | Sep 2011 | Dec 2023 | Landfill Gas |
| Silver Lake Solar Photovoltaic Facility | Western Massachusetts Electric Company | Pittsfield, MA | ISO New England (ISNE) | 1.4 GWh | Nov 2010 | Dec 2023 | Solar |
| Smith College Central Heating Plant | The Trustees of Smith College | Northampton, MA | ISO New England (ISNE) | 15.1 GWh | Sep 2008 | Dec 2023 | Natural Gas |
| SEMASS Resource Recovery | SEMASS Partnership | West Wareham, MA | ISO New England (ISNE) | 567.6 GWh | Jun 1988 | Aug 2024 | Non-biogenic Municipal Solid Waste : 54.2% Biogenic Municipal Solid Waste : 44.4% Natural Gas : 1.3% |
| Stony Brook | Massachusetts Mun Wholes Electric Co | Ludlow, MA | ISO New England (ISNE) | 26.3 GWh | Oct 1981 | Aug 2024 | Distillate Fuel Oil : 98.4% Natural Gas : 1.6% |
| Sherman | Great River Hydro, LLC | Rowe, MA | ISO New England (ISNE) | 35.5 GWh | Nov 1926 | Dec 2023 | Water |
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 | 7.9 GWh |
| Berkshire County, MA | # 12 | 37 | 58.0 GWh |
| Hampshire County, MA | # 11 | 35 | 139.7 GWh |
| Barnstable County, MA | # 10 | 21 | 268.8 GWh |
| Suffolk County, MA | # 9 | 13 | 455.9 GWh |
| Franklin County, MA | # 8 | 31 | 500.0 GWh |
| Bristol County, MA | # 7 | 68 | 674.3 GWh |
| County | State Rank | Active Plants | Dec 2023 Generation |
|---|---|---|---|
| Plymouth County, MA | # 6 | 73 | 849.2 GWh |
| Hampden County, MA | # 5 | 84 | 1.3 TWh |
| Essex County, MA | # 4 | 37 | 2.1 TWh |
| Middlesex County, MA | # 3 | 65 | 3.8 TWh |
| Worcester County, MA | # 2 | 188 | 4.4 TWh |
| Norfolk County, MA | # 1 | 36 | 5.9 TWh |