Nueces Bay
Nueces County, Texas · EIA plant ID 3441 · Operator: City of San Antonio - (TX)
Nameplate730MWSummer 633 MW
Generators3in service
Net generation2,121GWh12 mo to Aug 2026
Capacity factor38%gas/coal/oil units, summer MW
Heat rate7,620Btu/kWhfossil units, electric fuel, HHV
First online1972Runs as intermediate
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 1,841.6 | — | — |
| 2002 | 1,046.6 | — | — |
| 2004 | 0 | 0.0% | — |
| 2005 | 0 | 0.0% | — |
| 2006 | 0 | 0.0% | — |
| 2008 | 0 | 0.0% | — |
| 2010 | 1,897.4 | 32.7% | 7,793 |
| 2011 | 2,090.9 | 33.2% | 7,609 |
| 2012 | 2,498.5 | 39.6% | 7,626 |
| 2013 | 2,151.9 | 38.8% | 7,795 |
| 2014 | 1,522.1 | 27.5% | 8,041 |
| 2015 | 1,553.8 | 28.0% | 7,757 |
| 2016 | 1,180.6 | 21.2% | 7,569 |
| 2017 | 1,122.9 | 20.3% | 7,564 |
| 2018 | 2,172.5 | 39.2% | 7,550 |
| 2019 | 1,624.6 | 29.3% | 7,489 |
| 2020 | 1,186.9 | 21.3% | 7,601 |
| 2021 | 1,440.7 | 26.0% | 7,598 |
| 2022 | 1,472.1 | 26.6% | 7,632 |
| 2023 | 1,066.4 | 19.2% | 7,709 |
| 2024 | 1,682.5 | 30.3% | 8,061 |
| 2025 | 1,821.3 | 32.9% | 7,593 |
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 |
|---|---|---|---|---|---|---|---|---|
| 7 | Natural Gas Fired Combined Cycle | CA | 351 | 319 | Jul 1972 | Operating | — | coming soon |
| 8 | Natural Gas Fired Combined Cycle | CT | 189.6 | 157 | Mar 2010 | Operating | — | coming soon |
| 9 | Natural Gas Fired Combined Cycle | CT | 189.6 | 157 | Mar 2010 | Operating | — | coming soon |
| 5 | Natural Gas Steam Turbine | ST | 32.5 | 30 | Jun 1949 | Retired May 2008 | — | coming soon |
| 6 | Natural Gas Steam Turbine | ST | 180 | 161 | May 1965 | Retired May 2008 | — | coming soon |
Owner / operator
Operator: City of San Antonio - (TX). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| City of San Antonio - (TX) | 100.0% | 730 MW |
Nearby plants
Within 80 km.
| Corpus Christi Energy Center | 593 MW | 1.1 km |
| Aggreko MSR Grid PC2 | 10 MW | 4.4 km |
| HEBCCBakery | 3 MW | 5.6 km |
| Valero Refinery Corpus Christi West | 69 MW | 6.1 km |
| Weil Tract BESS | 10 MW | 7.1 km |
| M&G Resins USA | — | 7.8 km |