Where is Upper Androscoggin?

In Androscoggin 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 Upper Androscoggin?

2 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.

Who owns Upper Androscoggin?

EIA-860M names Lewiston, City of - (ME) 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 Upper Androscoggin LLC?

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

Is Upper Androscoggin still running?

EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Upper Androscoggin

Upper Androscoggin is a 2 MW hydroelectric power plant in Androscoggin County, Maine, operated by Lewiston, City of - (ME). EIA-860M lists 3 generating units here, inside ISO New England. Its units entered service in 1920.

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: 1.6 MW; 1.7 MW net summer
Generating units: 3
In service: 1920
EIA plant ID: 54202

Where it is

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County: Androscoggin County, Maine
Coordinates: 44.088, -70.2124
Balancing authority: ISNE
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Lewiston, City of - (ME)
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Out of service and NOT expected to return to service in next calendar year

Every plant Lewiston, City of - (ME) reports to EIA →

Upper Androscoggin: FAQ

Where is Upper Androscoggin?: In Androscoggin 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 Upper Androscoggin?: 2 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Upper Androscoggin?: EIA-860M names Lewiston, City of - (ME) 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 Upper Androscoggin LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Lewiston, City of - (ME) 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 "Upper Androscoggin LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Upper Androscoggin still running?: EIA-860M files it as "Out of service and NOT expected to return to service in next calendar year" for 2026-07. Statuses change monthly, and this page follows the monthly release.