Lyonsdale Associates

Lyonsdale Associates is a 3 MW hydroelectric power plant in Lewis County, New York, operated by Eagle Creek Renewable Energy, LLC. EIA-860M lists 2 generating units here, inside NYISO. Its units entered service in 1984.

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 MW
3 MW net summer
Generating units
2
In service
1984
EIA plant ID
50652

Where it is

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County
Lewis County, New York
Coordinates
43.6189, -75.3055
Balancing authority
NYIS
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Eagle Creek Renewable Energy, LLC
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Eagle Creek Renewable Energy, LLC reports to EIA →

Lyonsdale Associates: FAQ

Where is Lyonsdale Associates?
In Lewis 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 Lyonsdale Associates?
3 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Lyonsdale Associates?
EIA-860M names Eagle Creek Renewable Energy, 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 Lyonsdale Associates LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Eagle Creek Renewable Energy, 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 "Lyonsdale Associates LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Lyonsdale Associates still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.