Where is Stillwater Reservoir Hydro?

In Herkimer County, New York (NY). 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 Stillwater Reservoir Hydro?

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

Who owns Stillwater Reservoir Hydro?

EIA-860M names Watershed Hydropower 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 Stillwater Reservoir Hydro LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Watershed Hydropower 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 "Stillwater Reservoir Hydro LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Stillwater Reservoir Hydro still running?

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

Stillwater Reservoir Hydro

Stillwater Reservoir Hydro is a 2 MW hydroelectric power plant in Herkimer County, New York, operated by Watershed Hydropower Corp. EIA-860M lists 1 generating unit here, inside NYISO. Its unit entered service in 1987.

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: 1.8 MW; 1.8 MW net summer
Generating units: 1
In service: 1987
EIA plant ID: 50513

Where it is

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County: Herkimer County, New York
Coordinates: 43.8974, -75.04
Balancing authority: NYIS
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Watershed Hydropower Corp
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Operating

Every plant Watershed Hydropower Corp reports to EIA →

Stillwater Reservoir Hydro: FAQ

Where is Stillwater Reservoir Hydro?: In Herkimer County, New York (NY). 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 Stillwater Reservoir Hydro?: 2 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Stillwater Reservoir Hydro?: EIA-860M names Watershed Hydropower 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 Stillwater Reservoir Hydro LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Watershed Hydropower 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 "Stillwater Reservoir Hydro LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Stillwater Reservoir Hydro still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.