Where is Thundermist Hydro?

In Providence County, Rhode Island (RI). 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 Thundermist Hydro?

1 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.

Who owns Thundermist Hydro?

EIA-860M names City of Woonsocket - (RI) 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 Thundermist Hydro LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — City of Woonsocket - (RI) 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 "Thundermist Hydro LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Thundermist Hydro still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Thundermist Hydro

Thundermist Hydro is a 1 MW hydroelectric power plant in Providence County, Rhode Island, operated by City of Woonsocket - (RI). EIA-860M lists 1 generating unit here, inside ISO New England. Its unit entered service in 1981.

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: 1.2 MW; 1.1 MW net summer
Generating units: 1
In service: 1981
EIA plant ID: 54688

Where it is

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County: Providence County, Rhode Island
Coordinates: 41.999, -71.5174
Balancing authority: ISNE
Sector: IPP Non-CHP

Units, technology and status

Operator of record: City of Woonsocket - (RI)
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Operating

Every plant City of Woonsocket - (RI) reports to EIA →

Thundermist Hydro: FAQ

Where is Thundermist Hydro?: In Providence County, Rhode Island (RI). 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 Thundermist Hydro?: 1 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Thundermist Hydro?: EIA-860M names City of Woonsocket - (RI) 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 Thundermist Hydro LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — City of Woonsocket - (RI) 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 "Thundermist Hydro LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Thundermist Hydro still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.