Coal power plant in Arkansas, United States of America. Approximate location 33.65117, -93.811666.
CoalArkansasUnited States of Americaultra-supercritical
John W. Turk Jr. Power Plant is a 609 MW coal power station in Arkansas, United States of America. It is operated by East Texas Electric Cooperative Inc [8%]; Southwestern Electric Power Co [73%]. Based on its capacity (estimated), it can supply roughly 762k homes (estimated). It ranks #1098 of 10,938 United States of America power plants by installed capacity. Commissioned in 2012, it is around 14 years old — relatively modern. 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_johnwturkjr_unite.
Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.
The capacity and/or fuel fields on this page include a source-backed provenance label from GEM, an official registry, Wikidata, OSM, or a cross-source match.
capacity: GEM · 2026 · L100000103795; fuel: GEM GCPT
At 609 MW, John W. Turk Jr. Power Plant is around the median coal plant in United States of America (558 MW). Technically it is described as ultra-supercritical. 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.
Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).
Operated by East Texas Electric Cooperative Inc [8%]; Southwestern Electric Power Co [73%].
This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 33.7°N — which shapes how much energy it can produce and how its output varies through the year.
Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).
For a plant’s outdoor hardware — heat-recovery steam generators (HRSG), expansion joints, valves, flanges and their insulation — the local climate sets how fast unprotected steel and coatings degrade. This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.
Higher environmental severity is exactly where protective removable insulation pays back most: a sheltered micro-climate slows corrosion, UV and thermal-cycling damage and extends outdoor hardware service life. This is an indicative site-climate context — not a condition assessment of any specific plant or operator.
Indicative estimate via the ISO 9223:2012 informative method (atmospheric corrosivity from temperature, time-of-wetness and airborne salinity), using WorldClim climate normals, the Köppen-Geiger class and coast distance. Indicative, not a measured corrosion rate.
The #372 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.
Coordinates 33.65117, -93.811666 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
John W. Turk Jr. Power Plant is a 609 MW coal power plant in Arkansas, United States of America, commissioned in 2012.
Its output is enough to supply roughly 762,120 homes (estimated).
John W. Turk Jr. Power Plant is operated by East Texas Electric Cooperative Inc [8%]; Southwestern Electric Power Co [73%].
