Where is State Center?

In Marshall County, Iowa (IA). 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 State Center?

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

Who owns State Center?

EIA-860M names City of State Center - (IA) 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 State Center LLC?

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

Is State Center still running?

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

State Center

State Center is a 7 MW oil-fired power plant in Marshall County, Iowa, operated by City of State Center - (IA). EIA-860M lists 6 generating units here, inside MISO. Its units entered service between 1972 and 2017.

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: 7.1 MW; 6.9 MW net summer
Generating units: 6
In service: 1972–2017
EIA plant ID: 1187

Where it is

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County: Marshall County, Iowa
Coordinates: 42.0167, -93.1633
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: City of State Center - (IA)
Primary energy source: Petroleum
Technologies: Natural Gas Internal Combustion Engine, Petroleum Liquids, Solar Photovoltaic
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Petroleum 4 MW, Natural gas 3 MW, Solar 1 MW. It is filed here under Petroleum, the source with the most capacity.

Every plant City of State Center - (IA) reports to EIA →

State Center: FAQ

Where is State Center?: In Marshall County, Iowa (IA). 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 State Center?: 7 MW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
Who owns State Center?: EIA-860M names City of State Center - (IA) 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 State Center LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — City of State Center - (IA) 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 "State Center LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is State Center still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.