Primient Decatur Plant Cogen

Primient Decatur Plant Cogen is a 65 MW natural gas power plant in Macon County, Illinois, operated by Primary Products Ingredients Americas, LLC. EIA-860M lists 1 generating unit here, inside MISO. Its unit entered service in 1989.

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
64.8 MW
62 MW net summer
Generating units
1
In service
1989
EIA plant ID
10867

Where it is

Loading map…
County
Macon County, Illinois
Coordinates
39.8492, -88.9319
Balancing authority
MISO
Sector
Industrial CHP

Units, technology and status

Operator of record
Primary Products Ingredients Americas, LLC
Primary energy source
Natural gas
Technologies
Natural Gas Steam Turbine
Status
Operating

Every plant Primary Products Ingredients Americas, LLC reports to EIA →

Primient Decatur Plant Cogen: FAQ

Where is Primient Decatur Plant Cogen?
In Macon County, Illinois (IL). 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 Primient Decatur Plant Cogen?
65 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
Who owns Primient Decatur Plant Cogen?
EIA-860M names Primary Products Ingredients Americas, LLC 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 Primient Decatur Plant Cogen LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Primary Products Ingredients Americas, LLC 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 "Primient Decatur Plant Cogen LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Primient Decatur Plant Cogen still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.