Where is French Island?

In La Crosse County, Wisconsin (WI). 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 French Island?

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

Who owns French Island?

EIA-860M names Northern States Power Co - Minnesota 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 French Island LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Northern States Power Co - Minnesota 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 "French Island LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is French Island still running?

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

French Island

French Island is a 188 MW oil-fired power plant in La Crosse County, Wisconsin, operated by Northern States Power Co - Minnesota. EIA-860M lists 4 generating units here, inside MISO. Its units entered service between 1940 and 1974.

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: 188 MW; 135 MW net summer
Generating units: 4
In service: 1940–1974
EIA plant ID: 4005

Where it is

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County: La Crosse County, Wisconsin
Coordinates: 43.8292, -91.2597
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: Northern States Power Co - Minnesota
Primary energy source: Petroleum
Technologies: Municipal Solid Waste, Petroleum Liquids
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Petroleum 158 MW, Biomass 30 MW. It is filed here under Petroleum, the source with the most capacity.

Every plant Northern States Power Co - Minnesota reports to EIA →

French Island: FAQ

Where is French Island?: In La Crosse County, Wisconsin (WI). 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 French Island?: 188 MW of nameplate capacity across 4 units, as of the EIA-860M release for 2026-07.
Who owns French Island?: EIA-860M names Northern States Power Co - Minnesota 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 French Island LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Northern States Power Co - Minnesota 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 "French Island LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is French Island still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.