Other power plant in Illinois, United States of America. Approximate location 38.6972, -90.1283.
OtherIllinoisUnited States of America
Granite City Works is a 78 MW other power plant in Illinois, United States of America. It is operated by United States Steel Granite City Works. Based on reported annual generation of 501 GWh, it can supply roughly 143,228 homes. It ranks #2270 of 9,833 United States of America power plants by installed capacity. Commissioned in 2010, it is around 16 years old — relatively modern. In context, the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057072.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by United States Steel Granite City Works.
This other plant generates electricity for the grid. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 38.7°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 3% 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: 51/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
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.
The #2 largest other power plant of 16 in United States of America by capacity.
United States of America has 16 other power plants in this dataset, together about 572 MW of capacity.
Coordinates 38.6972, -90.1283 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
