Largest Power Plants in Massachusetts

Massachusetts has 700 power plants with a combined nameplate capacity of 14,691 MW. The table below ranks the 50 largest by installed capacity — these are the facilities with the most generation potential in the state. Nameplate capacity measures the maximum output under ideal conditions; actual generation depends on fuel cost, demand, and maintenance schedules.

For a complete list of all plants in the state, visit the Massachusetts state page. To find plants near a specific address, use the address lookup.

#PlantStateFuelCapacity
1Mystic Generating StationMassachusettsNatural Gas1,744 MW
2CanalMassachusettsNatural Gas1,495 MW
3Northfield MountainMassachusettsHydroelectric1,168 MW
4Fore River Generating StationMassachusettsNatural Gas872 MW
5Salem Harbor Power Development LpMassachusettsNatural Gas798 MW
6Bear SwampMassachusettsHydroelectric666 MW
7Anp Bellingham Energy ProjectMassachusettsNatural Gas578 MW
8Anp Blackstone Energy ProjectMassachusettsNatural Gas578 MW
9Stony BrookMassachusettsNatural Gas542 MW
10Millennium PowerMassachusettsNatural Gas428 MW
11Bellingham Cogeneration FacilityMassachusettsNatural Gas386 MW
12Berkshire PowerMassachusettsNatural Gas289 MW
13Exelon West Medway Ii LlcMassachusettsNatural Gas264 MW
14MasspowerMassachusettsNatural Gas261 MW
15Milford Power LpMassachusettsNatural Gas249 MW
16Kendall Square StationMassachusettsNatural Gas235 MW
17Potter Station 2MassachusettsNatural Gas217 MW
18Dighton Power PlantMassachusettsNatural Gas200 MW
19Pittsfield Generating LpMassachusettsNatural Gas176 MW
20Exelon Medway LlcMassachusettsOil135 MW
21Cleary Flood HybridMassachusettsNatural Gas121 MW
22Semass Resource RecoveryMassachusettsBiomass99 MW
23Dartmouth Power Associates LpMassachusettsNatural Gas97 MW
24Medical Area Total Energy PlantMassachusettsNatural Gas95 MW
25Tanner Street GenerationMassachusettsNatural Gas85 MW
26Deer Island Treatment PlantMassachusettsBiomass73 MW
27M Street JetMassachusettsOil69 MW
28Mmwec Simple Cycle Gas TurbineMassachusettsNatural Gas65 MW
29Waters RiverMassachusettsNatural Gas65 MW
30CabotMassachusettsHydroelectric62 MW
31Wheelabrator SaugusMassachusettsBiomass58 MW
32Wheelabrator Millbury FacilityMassachusettsBiomass48 MW
33Covanta HaverhillMassachusettsBiomass46 MW
34Mass Inst Tech Cntrl Utilities/Cogen PltMassachusettsNatural Gas43 MW
35Exelon Framingham LlcMassachusettsOil43 MW
36Wheelabrator North AndoverMassachusettsBiomass40 MW
37Hadley FallsMassachusettsHydroelectric33 MW
38Cobble MountainMassachusettsHydroelectric33 MW
39New England Wind LlcMassachusettsWind29 MW
40Outer Cape Community BatteryMassachusettsOther Fossil25 MW
41Boott HydropowerMassachusettsHydroelectric23 MW
42Nantucket HybridMassachusettsOil22 MW
43Central Heating PlantMassachusettsNatural Gas20 MW
44Berkshire Wind Power ProjectMassachusettsWind20 MW
45Ne Renewable Fitchburg, LlcMassachusettsBiomass18 MW
46Deerfield 5MassachusettsHydroelectric18 MW
47Univ Of Massachusetts Medical CenterMassachusettsNatural Gas18 MW
48Cherry StreetMassachusettsNatural Gas17 MW
49Lawrence Hydroelectric AssociatesMassachusettsHydroelectric15 MW
50Sja Solar Llc-Solterra Monastery CsgMassachusettsSolar15 MW

Cite this page

PowerPlantsNearMe.com. (2026). Largest Power Plants in Massachusetts. Derived from EIA Form 860, EIA Form 923, and EPA eGRID. Retrieved from https://powerplantsnearme.com/largest-power-plants/massachusetts

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