Massachusetts Mun Wholes Electric Co opera 4 centrales eléctricas en 1 país, con una capacidad instalada combinada de 560 MW.
| Central | Combustible | País | MW | t CO₂/año |
|---|---|---|---|---|
| Stony Brook | Oil | United States of America | 535 | — |
| Berkshire Wind Power Project | Wind | United States of America | 20 | — |
| Ashburnham Energy Storage Project | Storage | United States of America | 3 | — |
| Beebe Substation Battery Storage | Storage | United States of America | 3 | — |
Propiedad y capacidad: WRI Global Power Plant Database (CC BY 4.0). CO₂ medido cuando se declara a EPA/EU ETS/Climate TRACE.