Where is Greater Des Moines?

In Polk 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 Greater Des Moines?

576 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.

Who owns Greater Des Moines?

EIA-860M names MidAmerican Energy Co 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 Greater Des Moines LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — MidAmerican Energy Co 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 "Greater Des Moines LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Greater Des Moines still running?

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

Greater Des Moines

Greater Des Moines is a 576 MW natural gas power plant in Polk County, Iowa, operated by MidAmerican Energy Co. EIA-860M lists 3 generating units here, inside MISO. Its units entered service between 2003 and 2004.

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: 576.3 MW; 503.7 MW net summer
Generating units: 3
In service: 2003–2004
EIA plant ID: 7985

Where it is

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County: Polk County, Iowa
Coordinates: 41.5563, -93.5283
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: MidAmerican Energy Co
Primary energy source: Natural gas
Technologies: Natural Gas Fired Combined Cycle
Status: Operating

Every plant MidAmerican Energy Co reports to EIA →

Greater Des Moines: FAQ

Where is Greater Des Moines?: In Polk 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 Greater Des Moines?: 576 MW of nameplate capacity across 3 units, as of the EIA-860M release for 2026-07.
Who owns Greater Des Moines?: EIA-860M names MidAmerican Energy Co 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 Greater Des Moines LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — MidAmerican Energy Co 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 "Greater Des Moines LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Greater Des Moines still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.