Sissonville Hydro

Sissonville Hydro is a 3 MW hydroelectric power plant in St Lawrence County, New York, operated by Boralex Hydro Operations Inc. EIA-860M lists 1 generating unit here, inside NYISO. Its unit entered service in 1990.

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
1
In service
1990
EIA plant ID
10220

Where it is

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County
St Lawrence County, New York
Coordinates
44.6856, -75.0029
Balancing authority
NYIS
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Boralex Hydro Operations Inc
Primary energy source
Hydro
Technologies
Conventional Hydroelectric
Status
Operating

Every plant Boralex Hydro Operations Inc reports to EIA →

Sissonville Hydro: FAQ

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