In Gratiot County, Michigan (MI). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

6 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.

EIA-860M names City of St Louis - (MI) 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 St Louis LLC?

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

Is St Louis still running?

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

St Louis

St Louis is a 6 MW oil-fired power plant in Gratiot County, Michigan, operated by City of St Louis - (MI). EIA-860M lists 6 generating units here, inside MISO. Its units entered service between 1919 and 2003.

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: 5.6 MW; 5.4 MW net summer
Generating units: 6
In service: 1919–2003
EIA plant ID: 1852

Where it is

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County: Gratiot County, Michigan
Coordinates: 43.4019, -84.6014
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: City of St Louis - (MI)
Primary energy source: Petroleum
Technologies: Conventional Hydroelectric, Petroleum Liquids
Status: Standby/Backup (3) · Operating (3)

This site runs on more than one energy source. EIA-860M capacity splits: Petroleum 5 MW, Hydro 0 MW. It is filed here under Petroleum, the source with the most capacity.

Every plant City of St Louis - (MI) reports to EIA →

St Louis: FAQ

Where is St Louis?: In Gratiot County, Michigan (MI). 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 St Louis?: 6 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
Who owns St Louis?: EIA-860M names City of St Louis - (MI) 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 St Louis LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — City of St Louis - (MI) 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 "St Louis LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is St Louis still running?: EIA-860M files it as "Standby/Backup" for 2026-07. Statuses change monthly, and this page follows the monthly release.