Berkshire Power
Berkshire Power is a 289 MW natural gas power plant in Hampden County, Massachusetts, operated by Berkshire Power Co LLC. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 1999.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 289 MW
- 229.2 MW net summer
- Generating units
- 1
- In service
- 1999
- EIA plant ID
- 55041
Where it is
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- County
- Hampden County, Massachusetts
- Coordinates
- 42.0476, -72.6478
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Berkshire Power Co LLC
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle
- Status
- Operating
Berkshire Power: FAQ
- Where is Berkshire Power?
- In Hampden County, Massachusetts (MA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Berkshire Power?
- 289 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Berkshire Power?
- EIA-860M names Berkshire Power Co LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Berkshire Power LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Berkshire Power Co LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Berkshire Power LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Berkshire Power still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.