Power plant · EIA plant code 50973
Motiva Enterprises Port Arthur Refinery
- Operator
- Motiva Enterprises LLC
- Location
- Jefferson, TX (county level only)
- Balancing authority
- Midcontinent Independent Transmission System Operator, Inc.. (MISO)
- Nameplate capacity
- 276.8 MW
- Summer capacity
- 239.4 MW
U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Sep 10, 2027. Last checked for an update: Oct 31, 2026.
Generation in 2025
- Net generation
- 1,609,437 MWh
- Capacity factor
- 66.4%
Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.
U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Sep 11, 2027. Last checked for an update: Oct 31, 2026.
Emissions
- Carbon dioxide in 2023
- 605,564 metric tons
- Carbon dioxide per MWh
- 957 lb/MWh
eGRID reports 667,520 short tons. One short ton is 0.90718474 metric tons.
Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.
U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Jan 31, 2026. Last checked for an update: Oct 31, 2026.
Generators
| Generator | Technology | Energy source | Nameplate | Operating since | Status |
|---|---|---|---|---|---|
| GN31 | Other Gases | OG | 10 MW | 1962 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN32 | Other Gases | OG | 15.6 MW | 1957 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN33 | Other Gases | OG | 25.5 MW | 1978 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN34 | Natural Gas Fired Combustion Turbine | NG | 18.8 MW | 1970 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN35 | Natural Gas Fired Combined Cycle | NG | 40.5 MW | 1983 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN41 | Natural Gas Fired Combined Cycle | NG | 41.6 MW | 2011 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN42 | Natural Gas Fired Combined Cycle | NG | 41.6 MW | 2011 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN43 | Natural Gas Fired Combined Cycle | NG | 41.6 MW | 2011 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
| GN44 | Natural Gas Fired Combined Cycle | NG | 41.6 MW | 2011 | Operable · As of September 2026 (EIA-860M): (OP) Operating |
U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0 May be out of date. The next release was due by Nov 23, 2026. Last checked for an update: Oct 31, 2026.