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209.3 MW All Other (8 MW) + Natural Gas Fired Combustion Turbine (202 MW) operating in Harris, TX — Electric Reliability Council of Texas, Inc.
209.3 MW
Nameplate Capacity
7
Generators
units
Hybrid (2)
Technology
All Other + Natural Gas Fired Combustion Turbine
1952
Operating Since
Coordinates
29.7535, -94.9973
County
Harris, TX
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Exxon Mobil Refining and Supply Co. | — | — |
| Owner(s) | Exxon Mobil Refining and Supply Co. | — | — |
| Status | Operating | — | — |
The ExxonMobil Baytown Refinery is a 209.3 MW natural gas-fired power plant located in Harris County, Texas. The plant, which began operating in 1952, is owned and operated by Exxon Mobil Refining and Supply Co. It consists of seven generators utilizing both "All Other" and natural gas-fired combustion turbine technologies, and is classified as a hybrid plant.
In the most recent year of data, the plant generated 1,240,328 MWh of electricity, achieving a capacity factor of 67.4%. The ExxonMobil Baytown Refinery operates within the Electric Reliability Council of Texas (ERCOT) balancing authority and the Texas Reliability Entity (TRE) NERC region. Ranked by capacity, it is the 117th largest power plant in Texas out of 144, and the 740th largest in the United States out of 945.
Generated from EIA, GEM, and public data sources
ISO/RTO
ERCOT
Market
ISO/RTO Member
NERC Region
TRE — Texas Reliability Entity
Balancing Authority
Electric Reliability Council of Texas, Inc. (ERCO)
Grid Voltage
138.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
89.7K MWh
Latest Month
1.2M MWh
Annual Generation
67.4%
Capacity Factor
CO₂ Intensity
619 lb/MWh
NOx
2 lb/MWh
SO₂
0.017 lb/MWh
CH₄
0.012 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
64.9%
Annual Net Gen
1190 GWh
CO₂eq
620 lb/MWh
Subregion
ERCOT All
2013
$965/kW
Est. Construction Cost
Total estimated cost: $202.0M
Market Position
ISO/RTO Market
ERCOT
LMP Node
EXN_G8
Pricing Hub
HB_HOUSTON
Node Source
EIA-860 direct report
Last updated 2026-03-14
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