Where is Maquoketa 1?

In Jackson 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 Maquoketa 1?

24 MW of nameplate capacity across 9 units, as of the EIA-860M release for 2026-07.

Who owns Maquoketa 1?

EIA-860M names City of Maquoketa - (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 Maquoketa 1 LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — City of Maquoketa - (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 "Maquoketa 1 LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Maquoketa 1 still running?

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

Maquoketa 1

Maquoketa 1 is a 24 MW natural gas power plant in Jackson County, Iowa, operated by City of Maquoketa - (IA). EIA-860M lists 9 generating units here, inside MISO. Its units entered service between 1956 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: 24.4 MW; 22 MW net summer
Generating units: 9
In service: 1956–2004
EIA plant ID: 1162

Where it is

Loading map…

County: Jackson County, Iowa
Coordinates: 42.0356, -90.665
Balancing authority: MISO
Sector: Electric Utility

Units, technology and status

Operator of record: City of Maquoketa - (IA)
Primary energy source: Natural gas
Technologies: Natural Gas Internal Combustion Engine, Petroleum Liquids
Status: Operating (8) · Standby/Backup (1)

This site runs on more than one energy source. EIA-860M capacity splits: Natural gas 19 MW, Petroleum 5 MW. It is filed here under Natural gas, the source with the most capacity.

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

Maquoketa 1: FAQ

Where is Maquoketa 1?: In Jackson 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 Maquoketa 1?: 24 MW of nameplate capacity across 9 units, as of the EIA-860M release for 2026-07.
Who owns Maquoketa 1?: EIA-860M names City of Maquoketa - (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 Maquoketa 1 LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — City of Maquoketa - (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 "Maquoketa 1 LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Maquoketa 1 still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.