Boott Hydropower
Boott Hydropower is a 23 MW hydroelectric power plant in Middlesex County, Massachusetts, operated by Boott Hydro, LLC - Hybrid. EIA-860M lists 3 generating units here, inside ISO New England. Its units entered service in 1985.
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
- 22.9 MW
- 21.7 MW net summer
- Generating units
- 3
- In service
- 1985
- EIA plant ID
- 10556
Where it is
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- County
- Middlesex County, Massachusetts
- Coordinates
- 42.6525, -71.3224
- Balancing authority
- ISNE
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Boott Hydro, LLC - Hybrid
- Primary energy source
- Hydro
- Technologies
- Conventional Hydroelectric
- Status
- Operating
Boott Hydropower: FAQ
- Where is Boott Hydropower?
- In Middlesex 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 Boott Hydropower?
- 23 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
- Who owns Boott Hydropower?
- EIA-860M names Boott Hydro, LLC - Hybrid 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 Boott Hydropower LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Boott Hydro, LLC - Hybrid 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 "Boott Hydropower LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Boott Hydropower still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.