John W. Turk Jr. Power Plant — United States of America

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 #1042 of 10,884 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.

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000103795; fuel: GEM GCPT

In context: how this plant compares

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.

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

728 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 East Texas Electric Cooperative Inc [8%]; Southwestern Electric Power Co [73%].

Climate zone & how it works

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).

Site climate & environmental severity

This site sits in a moderately corrosive environment (estimated ISO 9223 class C3 — Medium), with humidity / wetness the leading environmental stress.

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.

How it compares & nearby plants

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.

Nearby power plants

• John W Turk Jr Power Plant · Coal · 609 MW · Arkansas
• Fulton (AR) · Gas · 154.8 MW · Arkansas
• Ashdown · Biomass · 156.5 MW · Arkansas
• International Paper Texarkana Mill · Biomass · 65 MW · Texas
• Narrows (AR) · Hydro · 25.5 MW · Arkansas
• Degray · Hydro · 70 MW · Arkansas

Location

Coordinates 33.65117, -93.811666 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions