Where is Longfalls Facility?

In Jefferson 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 Longfalls Facility?

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

Who owns Longfalls Facility?

EIA-860M names Ampersand Long Falls 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 Longfalls Facility LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Ampersand Long Falls 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 "Longfalls Facility LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Longfalls Facility still running?

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

Longfalls Facility

Longfalls Facility is a 3 MW hydroelectric power plant in Jefferson County, New York, operated by Ampersand Long Falls Hydro, LLC. EIA-860M lists 1 generating unit here, inside NYISO. Its unit entered service in 1991.

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: 3.3 MW; 3 MW net summer
Generating units: 1
In service: 1991
EIA plant ID: 54548

Where it is

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County: Jefferson County, New York
Coordinates: 43.9808, -75.6247
Balancing authority: NYIS
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Ampersand Long Falls Hydro, LLC
Primary energy source: Hydro
Technologies: Conventional Hydroelectric
Status: Operating

Every plant Ampersand Long Falls Hydro, LLC reports to EIA →

Longfalls Facility: FAQ

Where is Longfalls Facility?: In Jefferson 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 Longfalls Facility?: 3 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Longfalls Facility?: EIA-860M names Ampersand Long Falls 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 Longfalls Facility LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Ampersand Long Falls 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 "Longfalls Facility LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Longfalls Facility still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.