Archer Daniels Midland Decatur Power Plant — United States of America

Archer Daniels Midland Decatur Power Plant is a 335 MW coal power station in Illinois, United States of America. It is operated by Archer-Daniels-Midland Co [100%]. Based on its capacity (estimated), it can supply roughly 419k homes (estimated). It ranks #1509 of 10,884 United States of America power plants by installed capacity. Commissioned in 1987, it is around 39 years old — long-established. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id GEM_coa_archerdanielsmidland_unite_3.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000103852; fuel: GEM GCPT

In context: how this plant compares

At 335 MW, Archer Daniels Midland Decatur Power Plant is below the median coal plant in United States of America (558 MW). Technically it is described as subcritical. Coal plants burn pulverised coal to raise high-pressure steam for a turbine; they run as baseload but are the most carbon-intensive mainstream source and the first targeted for retirement or efficiency retrofits.

Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.

Key facts

Share of United States of America coal capacity

less than 0.1% of 621,194 MW across 802 plants in this dataset

Age among peers

574 of 745 dated coal plants in United States of America are older

Calculated from the capacity and generation records in this dataset (WRI Global Power Plant Database (CC BY 4.0)).

Capacity vs largest coal plants in United States of America

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Archer-Daniels-Midland Co [100%].

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a hot-summer humid continental climate (Köppen Dfa) — Northern Hemisphere, latitude 39.9°N — which shapes how much energy it can produce and how its output varies through the year.

Monthly mean temperature

Heating degree-days here run 20% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 61/100 — this site sits in the mid third of the power plants we cover by heating degree-days.

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

How it compares & nearby plants

The #507 largest coal power plant of 802 in United States of America by capacity.

United States of America has 802 coal power plants in this dataset, together about 621,194 MW of capacity.

Nearby power plants

• Archer Daniels Midland Decatur · Coal · 335 MW · Illinois
• Broadwing Energy Center · Gas · 400 MW · Illinois
• Tate & Lyle Decatur Plant Cogen · Coal · 64.8 MW · Illinois
• Primient Decatur Plant Cogen · Gas · 64.8 MW · Illinois
• Fuyao Glass Illinois Inc. · Oil · 4.7 MW · Illinois
• Radfords Run Wind Farm · Wind · 278 MW · Illinois

Location

Coordinates 39.870008, -88.890964 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions