Where is Stillwater Hydro Station?

In Penobscot County, Maine (ME). 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 Hydro Station?

2 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.

Who owns Stillwater Hydro Station?

EIA-860M names Brookfield Black Bear Hydro, LLC 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 Hydro Station LLC?

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

Is Stillwater Hydro Station still running?

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

Stillwater Hydro Station

Stillwater Hydro Station is a 2 MW hydroelectric power plant in Penobscot County, Maine, operated by Brookfield Black Bear Hydro, LLC. EIA-860M lists 4 generating units here, inside ISO New England. Its units entered service between 1913 and 1929.

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; 2.1 MW net summer
Generating units: 4
In service: 1913–1929
EIA plant ID: 1478

Where it is

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County: Penobscot County, Maine
Coordinates: 44.9094, -68.6833
Balancing authority: ISNE
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Brookfield Black Bear Hydro, LLC
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Operating

Every plant Brookfield Black Bear Hydro, LLC reports to EIA →

Stillwater Hydro Station: FAQ

Where is Stillwater Hydro Station?: In Penobscot County, Maine (ME). 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 Hydro Station?: 2 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns Stillwater Hydro Station?: EIA-860M names Brookfield Black Bear Hydro, LLC 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 Hydro Station LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Brookfield Black Bear Hydro, LLC 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 Hydro Station LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Stillwater Hydro Station still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.