Directory of Power Plants in Massachusetts
| Plant Name | Utility | Location | Balancing Authority | Annual Generation | Plant Date | Last Update | Fuel Types |
|---|---|---|---|---|---|---|---|
| MA CS Uxbridge Community Solar | MA CS Uxbridge, LLC | Uxbridge, MA | ISO New England (ISNE) | 4.3 GWh | Jan 2023 | Dec 2023 | Solar |
| MA Blackstone | Catalyze Blackstone 83 Federal Street Microgrid, LLC | Blackstone, MA | ISO New England (ISNE) | 4.5 GWh | Jun 2022 | Dec 2023 | Solar |
| Maple(CSG) | Maple Street Solar 1, LLC | Bellingham, MA | ISO New England (ISNE) | 5.8 GWh | Oct 2021 | Dec 2023 | Solar |
| McDougle-Mitchell Solar Project Hybrid CSG | AES Distributed Energy | Charlton, MA | ISO New England (ISNE) | 7.3 GWh | Jul 2020 | Dec 2023 | Solar |
| Montague Road Solar | Montague Road Solar, LLC | Amherst, MA | ISO New England (ISNE) | 3.9 GWh | Nov 2019 | Dec 2023 | Solar |
| Montague Site 36-Grosolar | NSTAR Electric Company | Millers Falls, MA | ISO New England (ISNE) | 5.7 GWh | Sep 2018 | Aug 2024 | Solar |
| Middleton Solar Park | HG Solar Development, LLC | Middleton, MA | ISO New England (ISNE) | 7.5 GWh | May 2018 | Dec 2023 | Solar |
| MA Solar Storage 1 Hybrid | Origis Energy USA, Inc | Sterling, MA | ISO New England (ISNE) | 1.3 GWh | Feb 2018 | Dec 2023 | Solar |
| Mendon | BWC Box Pond LLC | Mendon, MA | ISO New England (ISNE) | 3.9 GWh | Nov 2017 | Dec 2023 | Solar |
| Monson Solar, LLC | Monson Solar, LLC | Monson, MA | ISO New England (ISNE) | 3.2 GWh | Jul 2017 | Dec 2023 | Solar |
| Mt. Tom Solar Project Hybrid | Mt. Tom Solar, LLC | Holyoke, MA | ISO New England (ISNE) | 5.3 GWh | Dec 2016 | Dec 2023 | Solar |
| Meadow Solar | Altus Power America Management, LLC | Boston, MA | ISO New England (ISNE) | 4.3 GWh | Nov 2016 | Dec 2023 | Solar |
| MDFA Devens-Saratoga | Terraform Arcadia | Devens, MA | ISO New England (ISNE) | 3.5 GWh | Feb 2016 | Dec 2023 | Solar |
| Mashpee Landfill Solar | Nautilus Solar Solutions | Mashpee, MA | ISO New England (ISNE) | 2.4 GWh | Aug 2014 | Dec 2023 | Solar |
| Monson Solar | Altus Power America Management, LLC | Monson, MA | ISO New England (ISNE) | 4.1 GWh | Jun 2014 | Dec 2023 | Solar |
| Mass Midstate Solar 1 | Evergreen Wind, LLC | Warren, MA | ISO New England (ISNE) | 7.3 GWh | Apr 2014 | Dec 2023 | Solar |
| Mass Midstate Solar 2 | Evergreen Wind, LLC | Warren, MA | ISO New England (ISNE) | 7.0 GWh | Apr 2014 | Dec 2023 | Solar |
| Mass Midstate Solar 3 | Evergreen Wind, LLC | Warren, MA | ISO New England (ISNE) | 6.2 GWh | Apr 2014 | Dec 2023 | Solar |
| Millbury Solar | Evergreen Wind, LLC | Millbury, MA | ISO New England (ISNE) | 4.6 GWh | Mar 2014 | Dec 2023 | Solar |
| Maynard PV | Terraform Arcadia | Maynard, MA | ISO New England (ISNE) | 1.3 GWh | Dec 2013 | Dec 2023 | Solar |
| Marshfield PV | Terraform Arcadia | Marshfield, MA | ISO New England (ISNE) | 5.0 GWh | Nov 2013 | Dec 2023 | Solar |
| Merrimac Solar | Consolidated Edison Development Inc. | Merrimac, MA | ISO New England (ISNE) | 2.2 GWh | Nov 2013 | Dec 2023 | Solar |
| Morin Solar 2013 LLC | CVI CleanCapital Solar 6 | Warren, MA | ISO New England (ISNE) | 5.1 GWh | Nov 2013 | Dec 2023 | Solar |
| Methuen Landfill | CleanCapital Holdings | Methuen, MA | ISO New England (ISNE) | 1.6 GWh | Jun 2013 | Dec 2023 | Solar |
| Manheim New England | Cox Enterprises | North Dighton, MA | ISO New England (ISNE) | 3.0 GWh | Nov 2012 | Dec 2023 | Solar |
| Mt Wachusett Community College | Mt Wachusett Community College | Gardner, MA | ISO New England (ISNE) | 3.8 GWh | Feb 2011 | Aug 2024 | Wind |
| MA Military Reservation Wind Project | Air Force Civil Engineer Center | Otis ANG Base Bourne, MA | ISO New England (ISNE) | 9.7 GWh | Nov 2009 | Dec 2023 | Wind |
| Millennium Power | Millennium Power Company, LLC | Charlton, MA | ISO New England (ISNE) | 809.4 GWh | Mar 2001 | Aug 2024 | Natural Gas |
| MM Taunton Energy | MM Taunton Energy LLC | Taunton, MA | ISO New England (ISNE) | 8.1 GWh | Aug 1997 | Dec 2023 | Landfill Gas |
| Mass Inst Tech Cntrl Utilities/Cogen Plt | Massachusetts Inst of Tech | Cambridge, MA | ISO New England (ISNE) | 204.5 GWh | May 1995 | Dec 2023 | Natural Gas |
| Masspower | Masspower | Indian Orchard, MA | ISO New England (ISNE) | 609.1 GWh | Jun 1993 | Dec 2023 | Natural Gas |
| Milford Power LP | Milford Power LLC | Milford, MA | ISO New England (ISNE) | 210.3 GWh | Feb 1993 | Dec 2023 | Natural Gas |
| Medical Area Total Energy Plant | MATEP LLC | Boston, MA | ISO New England (ISNE) | 338.6 GWh | Dec 1979 | Dec 2023 | Natural Gas : 99.7% |
| M Street Jet | Massachusetts Bay Trans Auth | Boston, MA | ISO New England (ISNE) | 275.0 MWh | Apr 1979 | Dec 2023 | Kerosene |
| Mystic Generating Station | Constellation Mystic Power LLC | Charlestown, MA | ISO New England (ISNE) | 1.8 TWh | May 1969 | Mar 2024 | Natural Gas |
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 |