Freeport Plant — United States of America

Coal power plant in Texas, United States of America. Approximate location 28.943464, -95.368158.

CoalTexasUnited States of AmericaIGCC

Freeport Plant is a 400 MW coal power station in Texas, United States of America. It is operated by Hunton Energy [100%]. Based on its capacity (estimated), it can supply roughly 501k homes (estimated). It ranks #1378 of 10,884 United States of America power plants by installed capacity. 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).

400MW installed capacity
500,571homes powered (est.)

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

Data status

Known data

FacilityFreeport Plant GEM-coal
CountryUnited States of America · Texas GEM-coal
Coordinates28.943464, -95.368158 GEM-coal
FuelCoal GEM-coal
MW installed capacity400 MW GEM GCPT; source record
OwnerHunton Energy [100%] GEM-coal
TechnologyIGCC GEM-coal

Calculated from dataset

CO₂ emissions1,752,000 t CO₂·a⁻¹ calculated
Capacity rank in country#1378 / 10884 calculated
Fuel-specific rank in country#467 / 802 calculated
Capacity vs country/fuel peers0.72× · 558 MW · n=802 calculated
Homes-powered equivalent500,571 calculated
Environmental severityC5 · 50/100 derived from coordinates

Not available

CommissionedNot available not in dataset
GWh reported / yrNot available not in dataset

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

Data provenance

Capacity and fuel are the upstream open-dataset record, not yet matched to a 2026 registry or GEM entry.

capacity: GEM GCPT; fuel: GEM GCPT

In context: how this plant compares

At 400 MW, Freeport Plant is below the median coal plant in United States of America (558 MW). Technically it is described as IGCC. 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

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

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 Hunton Energy [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 28.9°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

This site sits in an aggressive, high-corrosion environment (estimated ISO 9223 class C5 — Very high), with marine salt corrosion the leading environmental stress.

C5ISO 9223 corrosivity (indicative)
50/100environmental-severity index
16.6°Cseasonal temperature swing
31 kmdistance to coast

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 #467 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 28.943464, -95.368158 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions

What type of power plant is Freeport Plant?

Freeport Plant is a 400 MW coal power plant in Texas, United States of America.

Who operates Freeport Plant?

Freeport Plant is operated by Hunton Energy [100%].

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