GMP Solar - Williston

GMP Solar - Williston is a 5 MW solar farm in Chittenden County, Vermont, operated by Green Mountain Power Corp. EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 2016.

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
4.7 MW
4.7 MW net summer
Generating units
1
In service
2016
EIA plant ID
60875

Where it is

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County
Chittenden County, Vermont
Coordinates
44.4655, -73.1032
Balancing authority
ISNE
Sector
Electric Utility

Units, technology and status

Operator of record
Green Mountain Power Corp
Primary energy source
Solar
Technologies
Solar Photovoltaic
Status
Operating

Every plant Green Mountain Power Corp reports to EIA →

GMP Solar - Williston: FAQ

Where is GMP Solar - Williston?
In Chittenden 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 GMP Solar - Williston?
5 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns GMP Solar - Williston?
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 GMP Solar - Williston 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 "GMP Solar - Williston LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is GMP Solar - Williston still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.