Gas power plant in Illinois, United States of America. Approximate location 37.6577, -89.5112.
GasIllinoisUnited States of AmericaCCGT · HRSGMothballed
Grand Tower Energy Center LLC is a 640.9 MW gas power station in Illinois, United States of America. It ranks #1048 of 10,938 United States of America power plants by installed capacity. Commissioned in 1987, it is around 39 years old — long-established. In context, gas supplies about 40.0% 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 USA0000862.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and fuel fields on this page are source-record values from the upstream open dataset. They are useful for identification and ranking, but they have not been upgraded to a 2026 registry/GEM-location verified value.
capacity: WRI GPPD; fuel: WRI GPPD
At 640.9 MW, Grand Tower Energy Center LLC is well above the median gas plant in United States of America (121.2 MW). Technically it is described as CCGT; combined-cycle with a heat-recovery steam generator (HRSG). Its current lifecycle status is “Mothballed” — so it is not yet, or no longer, generating at full output. Gas plants burn natural gas either in open-cycle turbines for fast peaking, or in combined-cycle units that recover exhaust heat in an HRSG to reach roughly 55–62% efficiency — the cleanest-burning fossil option.
Capacity comparison computed from the WRI Global Power Plant Database; fuel-type context is general engineering background.
The #452 largest gas power plant of 2165 in United States of America by capacity.
United States of America has 2165 gas power plants in this dataset, together about 789,950 MW of capacity.
Coordinates 37.6577, -89.5112 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
Grand Tower Energy Center LLC is a 640.9 MW gas power plant in Illinois, United States of America, commissioned in 1987.
