Motiva Enterprises Port Arthur Refinery
Natural gas power plant · Jefferson County, Texas
Nameplate capacity
277 MW
Rank in Texas
#193
of 1,071 plants
In service since
1957
June 1957
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Motiva Enterprises LLC
- County
- Jefferson County
- Generating units
- 9
- Share of state capacity
- 0.14%
- Rank among natural gas plants in Texas
- #98 of 310
- EIA plant code
- 50973
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GN41 | Natural Gas Fired Combined Cycle | 42 MW | 36 MW | 2011 | Operating |
| GN42 | Natural Gas Fired Combined Cycle | 42 MW | 36 MW | 2011 | Operating |
| GN43 | Natural Gas Fired Combined Cycle | 42 MW | 36 MW | 2011 | Operating |
| GN44 | Natural Gas Fired Combined Cycle | 42 MW | 36 MW | 2011 | Operating |
| GN35 | Natural Gas Fired Combined Cycle | 41 MW | 39 MW | 1983 | Operating |
| GN33 | Other Gases | 26 MW | 22 MW | 1978 | Operating |
| GN34 | Natural Gas Fired Combustion Turbine | 19 MW | 16 MW | 1970 | Operating |
| GN32 | Other Gases | 16 MW | 11 MW | 1957 | Operating |
| GN31 | Other Gases | 10 MW | 8.4 MW | 1962 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Texas
| Palo Duro Wind | Wind | 282 MW |
| King Mountain Wind Ranch 1 | Wind | 278 MW |
| Bethel Wind Farm LLC | Wind | 276 MW |
| Shell Deer Park | Natural gas | 274 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 277 MW solar plant and a 277 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Texas power plants · What Texas actually generates