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Big Brown Steam Electric Station

Coal power plant in Texas, United States of America. Approximate location 31.820589, -96.055167.

CoalTexasUnited States of Americasupercritical

Big Brown Steam Electric Station is a 1,186.8 MW coal power station in Texas, United States of America. It is operated by Luminant Generation Company LLC [100%]. Based on its capacity (estimated), it can supply roughly 1.5 million homes (estimated). It ranks #539 of 10,938 United States of America power plants by installed capacity. Commissioned in 1971, it is around 55 years old — an older, legacy facility. 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).

1,186.8MW installed capacity
1,485,195homes powered (est.)
1971commissioned (~55 yrs)

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

Data status

Known data

FacilityBig Brown Steam Electric Station GEM-coal
CountryUnited States of America · Texas GEM-coal
Coordinates31.820589, -96.055167 GEM-coal
FuelCoal GEM-coal
MW installed capacity1,186.8 MW GEM GCPT; source record
OwnerLuminant Generation Company LLC [100%] GEM-coal
Commissioned1971 GEM-coal
Technologysupercritical GEM-coal

Calculated from dataset

CO₂ emissions5,198,184 t CO₂·a⁻¹ calculated
Capacity rank in country#539 / 10938 calculated
Fuel-specific rank in country#204 / 802 calculated
Capacity vs country/fuel peers2.13× · 558 MW · n=802 calculated
Homes-powered equivalent1,485,195 calculated
Environmental severityC3 · 38/100 derived from coordinates

Not available

GWh reported / yrNot available not in dataset

Known, modelled and calculated values are kept separate. Missing fields are shown as unavailable.

Data provenance

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: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 1,186.8 MW, Big Brown Steam Electric Station is well above the median coal plant in United States of America (558 MW). Technically it is described as 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.

Capacity vs largest coal plants in United States of America

W A Parish: 3,953 MW4kW A ParishScherer: 3,564 MW4kSchererScherer Steam Generating Station: 3,564 MW4kScherer St…Bowen: 3,499 MW3kBowenPlant Bowen: 3,499 MW3kPlant BowenCrystal River Energy Complex: 3,448 MW3kCrystal Ri…Gibson: 3,340 MW3kGibsonGibson Generating Station: 3,340 MW3kGibson Gen…

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

Owner

Operated by Luminant Generation Company LLC [100%].

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 31.8°N — which shapes how much energy it can produce and how its output varies through the year.

~18°Ctypical annual mean
~27°Ctypical warm-season mean
Humid subtropical: hot summers and mild winters

Climate zone & typical temperatures: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid).

Site climate & environmental severity

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.

C3ISO 9223 corrosivity (indicative)
38/100environmental-severity index
20.5°Cseasonal temperature swing
297 kmdistance to coast

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.

How it compares & nearby plants

The #204 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

Location

Coordinates 31.820589, -96.055167 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Big Brown Steam Electric Station?

Big Brown Steam Electric Station is a 1,186.8 MW coal power plant in Texas, United States of America, commissioned in 1971.

How many homes can Big Brown Steam Electric Station power?

Its output is enough to supply roughly 1,485,195 homes (estimated).

Who operates Big Brown Steam Electric Station?

Big Brown Steam Electric Station is operated by Luminant Generation Company LLC [100%].

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