Masspower
Natural gas power plant · Hampden County, Massachusetts
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Masspower
- County
- Hampden County
- Generating units
- 3
- Share of state capacity
- 1.86%
- Rank among natural gas plants in Massachusetts
- #9 of 40
- EIA plant code
- 10726
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combined Cycle | 90 MW | 83 MW | 1993 | Operating |
| GEN2 | Natural Gas Fired Combined Cycle | 90 MW | 83 MW | 1993 | Operating |
| GEN3 | Natural Gas Fired Combined Cycle | 81 MW | 79 MW | 1993 | 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
| Berkshire Power | Natural gas | 289 MW |
| Exelon West Medway II LLC | Natural gas | 264 MW |
| Medway Grid | Battery storage | 250 MW |
| Milford Power LP | Natural gas | 249 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 261 MW solar plant and a 261 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