ExxonMobil Baytown Turbine — United States of America

ExxonMobil Baytown Turbine is a 381.8 MW gas power station in Texas, United States of America. It is operated by Exxon Mobil Refining and Supply Co.. Based on reported annual generation of 2,567 GWh, it can supply roughly 733k homes. It ranks #1402 of 10,884 United States of America power plants by installed capacity. Commissioned in 1997, it is around 29 years old — long-established. Its modelled annual emissions are 554,800 t CO₂/yr (Climate TRACE), equivalent to about 129k cars driven for a year. 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 USA0010692.

Capacity provenance

The public capacity above is the current source-record value. A 2026 tracker candidate lists 263 MW for ExxonMobil Baytown power station, but it is not used as the public primary value until scope is verified (unit vs operating vs installed/project total).

Data provenance

Source of the capacity and fuel values:

capacity: GEM · 2026 · L100000402441; fuel: WRI GPPD

In context: how this plant compares

At 381.8 MW, ExxonMobil Baytown Turbine is well above the median gas plant in United States of America (121.2 MW). 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.

~554,800 t CO₂/yr (modelled) — in everyday terms

This facility's annual emissions are roughly equivalent to:

Equivalencies via US EPA Greenhouse Gas Equivalencies; modelled emissions from Climate TRACE.

Key facts

Load factor

77%, from 2,567 GWh of reported generation; the median for 1622 gas plants in United States of America that report generation is 26%

Generation trend

2,486 GWh in 2013 and 2,567 GWh in 2019 (+3%)

Highest and lowest year

2015: 2,837 GWh; 2013: 2,486 GWh

Share of United States of America gas capacity

less than 0.1% of 789,950 MW across 2,165 plants in this dataset

Age among peers

782 of 1,973 dated gas 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)).

Reported generation trend

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Exxon Mobil Refining and Supply Co..

Local climate & thermal context

This gas plant burns natural gas in a turbine — often in a combined-cycle setup — to generate electricity. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 29.8°N — which shapes how much energy it can produce and how its output varies through the year.

Monthly mean temperature

Heating degree-days here run 76% below the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.

Climate heat-demand index: 22/100 — this site sits in the bottom third of the power plants we cover by heating degree-days.

A gas turbine here also runs ~4% below its ISO (15°C) rating at this annual mean (typical CCGT curve, estimate).

Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.

Site climate & environmental severity

This site sits in a corrosive environment (estimated ISO 9223 class C4 — High), 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 #686 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.

Nearby power plants

• ExxonMobil Baytown Refinery · Gas · 177.3 MW · Texas
• Sam Bertron · Gas · 875.1 MW · Texas
• San Jacinto Steam Electric Station · Gas · 176.4 MW · Texas
• Houston Chemical Complex Battleground · Gas · 380.7 MW · Texas
• Cedar Bayou · Gas · 1,530 MW · Texas
• Cedar Bayou 4 · Gas · 535.5 MW · Texas

Location

Coordinates 29.7591, -95.0096 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

Frequently asked questions