MA · State grid profile
Massachusetts power grid
Massachusetts's operating portfolio is led by Oil & gas, followed by Hydro. Its 682 plants represent 12,758 MW of nameplate capacity. The dataset also reports 1,072 MW of proposed capacity.
Final 2024 state totalsPreliminary 2025 facilitiesCommunity-reported data centers
Coverage quality
What is complete here?
Generation portfolio
Massachusetts capacity by fuel
Oil & gas66.3%8,462 MW
Hydro16.5%2,106 MW
Solar11.2%1,434 MW
Biomass2.7%350 MW
Storage2.4%305 MW
Wind0.8%102 MW
Facility intelligence
Largest Massachusetts power plants
| Plant | Primary fuel | Location | Utility | Operating capacity |
|---|---|---|---|---|
| CanalPlant 1599 | Oil & gas | Sandwich, MABarnstable County | Canal Generating LLC | 1,495 MW |
| Northfield MountainPlant 547 | Hydro | Northfield, MAFranklin County | FirstLight Power Resources, Inc. - MA | 1,168 MW |
| Fore River Generating StationPlant 55317 | Oil & gas | North Weymouth, MANorfolk County | Calpine Fore River Energy Center, LLC | 872 MW |
| Salem Harbor Power Development LPPlant 60903 | Oil & gas | Salem, MAEssex County | Salem Harbor Power Development LP | 798 MW |
| Bear SwampPlant 8005 | Hydro | Florida, MABerkshire County | Bear Swamp Power Company LLC | 666 MW |
| ANP Bellingham Energy ProjectPlant 55211 | Oil & gas | Bellingham, MANorfolk County | Bellingham Power Generation LLC | 578 MW |
| ANP Blackstone Energy ProjectPlant 55212 | Oil & gas | Blackstone, MAWorcester County | ANP Blackstone Energy Company LLC | 578 MW |
| Stony BrookPlant 6081 | Oil & gas | Ludlow, MAHampden County | Massachusetts Mun Wholes Electric Co | 542 MW |
| Millennium PowerPlant 55079 | Oil & gas | Charlton, MAWorcester County | Millennium Power Company, LLC | 428 MW |
| Bellingham Cogeneration FacilityPlant 10307 | Oil & gas | Bellingham, MANorfolk County | Northeast Energy Associates LP | 386 MW |
Methodology
Transparent by design
State totals and fuel mix use finalized EIA-860 2024 generator data. The facility table uses the EIA-860 2025 Early Release and is preliminary. Data-center counts use OpenStreetMap community records and measure mapped coverage, not the full market.