Berkshire Power
Natural gas power plant · Hampden County, Massachusetts
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Berkshire Power Co LLC
- County
- Hampden County
- Generating units
- 1
- Share of state capacity
- 2.06%
- Rank among natural gas plants in Massachusetts
- #7 of 40
- EIA plant code
- 55041
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN2 | Natural Gas Fired Combined Cycle | 289 MW | 229 MW | 1999 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Massachusetts
| Millennium Power | Natural gas | 428 MW |
| Bellingham Cogeneration Facility | Natural gas | 386 MW |
| Exelon West Medway II LLC | Natural gas | 264 MW |
| Masspower | Natural gas | 261 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 289 MW solar plant and a 289 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Massachusetts power plants · What Massachusetts actually generates