Massachusetts
power plants.
Massachusetts has 412 operating power plants in the catalog, 11,403 MW in all. The catalog also marks 7 plants as Retired, with 2,823 MW of capacity. Its operating fleet leans on natural gas, which accounts for 66% of operating capacity, with hydro second at 17.2%. The largest operating plant in the catalog is Canal Power Station (1,442 MW, recorded start year 1968).
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Massachusetts electricity mix
Operating installed capacity by fuel. Each row gives megawatts and its share of the operating total.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Largest plants in Massachusetts
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Newest plants in Massachusetts
This table includes 3 of the 6 operating plants with a recorded start year of 2022, largest first. The catalog records years, not full commissioning dates.
Source: Global Energy Monitor, Global Integrated Power Tracker, March 2026 release II. Catalog content date: .
Frequently asked questions
Where does Massachusetts get its electricity?
Across the 412 operating plants in the catalog, capacity is led by natural gas at 66%, then hydro at 17.2%. These are installed-capacity shares, not live generation.
What is the largest power plant in Massachusetts?
The largest operating plant in the catalog for Massachusetts is Canal Power Station, a natural gas facility with 1,442 MW and a recorded start year of 1968.
How many power plants are in Massachusetts?
The catalog tracks 412 operating power plants in Massachusetts, with 11,403 MW in all. It also marks 7 plants as Retired, with 2,823 MW of capacity.