694 plants · 13.7 GW total capacity
Massachusetts has 694 power plants with 13.7 GW total capacity. The generation mix includes 522 solar, 53 battery, 40 gas plants.
Largest is Canal (1495 MW Residual Oil); oldest active is Cabot Holyoke (1893); newest is Oak Leaf Solar XVI Community Solar (2025); top owner is AES Distributed Energy (36 plants).
26 interconnection queue projects in Massachusetts totaling 9.8 GW of proposed capacity.
Search plants, projects, owners, and states