Cavendish

Cavendish is a 2 MW hydroelectric power plant in Windsor County, Vermont, operated by Green Mountain Power Corp. EIA-860M lists 3 generating units here, inside ISO New England. Its units entered service in 1907.

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
1.7 MW
1.1 MW net summer
Generating units
3
In service
1907
EIA plant ID
3710

Where it is

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County
Windsor County, Vermont
Coordinates
43.3812, -72.5982
Balancing authority
ISNE
Sector
Electric Utility

Units, technology and status

Operator of record
Green Mountain Power Corp
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Green Mountain Power Corp reports to EIA →

Cavendish: FAQ

Where is Cavendish?
In Windsor County, Vermont (VT). 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 Cavendish?
2 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Cavendish?
EIA-860M names Green Mountain Power Corp 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 Cavendish LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Green Mountain Power Corp 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 "Cavendish LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Cavendish still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.