ExxonMobil Baytown Refinery
Harris County, Texas · EIA plant ID 10436 · Operator: Exxon Mobil Refining and Supply Co.
Nameplate209MWSummer 142 MW
Generators7in service
Net generation1,180GWh12 mo to Dec 2025
Capacity factor101%!gas/coal/oil units, summer MW
Heat rate4,674Btu/kWhfossil units, electric fuel, HHV
First online1952Runs as baseload
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 1,544.4 | — | — |
| 2002 | 1,264.5 | — | — |
| 2003 | 1,132.2 | 70.3% | 5,820 |
| 2004 | 34.3 | 0.0% | — |
| 2005 | 1,072 | 78.5% | 13,604 |
| 2006 | 945 | 76.5% | 13,604 |
| 2007 | 915.8 | 80.0% | 13,581 |
| 2008 | 1,005.1 | 88.0% | 13,604 |
| 2009 | 986.6 | 86.6% | 13,604 |
| 2010 | 1,024.8 | 90.0% | 13,332 |
| 2011 | 982.8 | 86.3% | 13,332 |
| 2012 | 1,055.8 | 92.5% | 13,604 |
| 2013 | 1,010.7 | 86.1% | 13,604 |
| 2014 | 1,077.9 | 91.8% | 13,332 |
| 2015 | 1,052.8 | 89.7% | 13,604 |
| 2016 | 1,067.8 | 90.7% | 4,769 |
| 2017 | 1,034 | 88.1% | 4,674 |
| 2018 | 1,109 | 98.9% | 4,769 |
| 2019 | 1,015.9 | 90.6% | 4,769 |
| 2020 | 998.9 | 88.8% | 4,769 |
| 2021 | 1,203.2 | 102.5% | — |
| 2022 | 1,202.2 | 102.4% | 4,674 |
| 2023 | 1,190.2 | 101.4% | 4,674 |
| 2024 | 1,240.3 | 105.4% | 4,674 |
| 2025 | 1,180.2 | 100.5% | 4,674 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GT38 | Natural Gas Fired Combustion Turbine | GT | 45.7 | 31 | Aug 1989 | Operating | — | coming soon |
| GT41 | Natural Gas Fired Combustion Turbine | GT | 27.6 | 18 | Jan 1977 | Operating | — | coming soon |
| GT42 | Natural Gas Fired Combustion Turbine | GT | 27.6 | 18 | Jan 1977 | Operating | — | coming soon |
| GT43 | Natural Gas Fired Combustion Turbine | GT | 27.6 | 18 | Jan 1977 | Operating | — | coming soon |
| GT44 | Natural Gas Fired Combustion Turbine | GT | 27.6 | 18 | Jan 1977 | Operating | — | coming soon |
| GT45 | Natural Gas Fired Combustion Turbine | GT | 45.7 | 31 | Jun 1988 | Operating | — | coming soon |
| ST34 | All Other | ST | 7.5 | 7.5 | Jan 1952 | Operating | — | coming soon |
| GT35 | Natural Gas Fired Combustion Turbine | GT | 14.5 | 12.3 | Jan 1970 | Retired May 2005 | — | coming soon |
| GT36 | Natural Gas Fired Combustion Turbine | GT | 15.2 | 12.9 | Jan 1972 | Retired May 2005 | — | coming soon |
| GT37 | Natural Gas Fired Combustion Turbine | GT | 17.2 | 14.6 | Jan 1976 | Retired May 2005 | — | coming soon |
| ST33 | Natural Gas Steam Turbine | ST | 7.5 | 7 | Jan 1950 | Retired Jun 2003 | — | coming soon |
Owner / operator
Operator: Exxon Mobil Refining and Supply Co.. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Exxon Mobil Refining and Supply Co. | 100.0% | 209 MW |
Nearby plants
Within 80 km.
| ExxonMobil Baytown Turbine | 382 MW | 1.3 km |
| WAL194 | 1 MW | 3.4 km |
| Cedar Bayou | 1,530 MW | 6.9 km |
| Cedar Bayou 4 | 536 MW | 7.2 km |
| Cedar Bayou 5 | — | 7.4 km |
| San Jacinto Steam Electric Station | 176 MW | 7.8 km |