Barney M Davis
Nueces County, Texas · EIA plant ID 4939 · Operator: City of San Antonio - (TX)
Nameplate1,082MWSummer 925 MW
Generators4in service
Net generation1,897GWh12 mo to Aug 2026
Capacity factor23%gas/coal/oil units, summer MW
Heat rate7,636Btu/kWhfossil units, electric fuel, HHV
First online1974Runs as peaking
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 | 2,993.7 | — | — |
| 2002 | 1,563.7 | — | — |
| 2003 | 1,057.7 | 17.3% | 10,933 |
| 2004 | 1,119.7 | 18.7% | 11,033 |
| 2005 | 817.8 | 13.7% | 11,636 |
| 2006 | 527.3 | 8.8% | 10,933 |
| 2007 | 276.4 | 4.6% | 11,983 |
| 2008 | 720.3 | 12.0% | 11,479 |
| 2009 | 302.8 | 5.1% | 11,298 |
| 2010 | 1,818 | 21.3% | 7,650 |
| 2011 | 2,206.5 | 24.4% | 7,912 |
| 2012 | 2,615.9 | 28.8% | 8,067 |
| 2013 | 2,309.2 | 27.2% | 8,134 |
| 2014 | 1,793 | 21.1% | 8,034 |
| 2015 | 1,728.4 | 20.5% | 7,764 |
| 2016 | 900.7 | 10.7% | 8,096 |
| 2017 | 1,197.7 | 14.6% | 7,709 |
| 2018 | 1,800.6 | 22.0% | 7,832 |
| 2019 | 1,547.8 | 18.9% | 8,177 |
| 2020 | 1,228 | 15.1% | 8,090 |
| 2021 | 1,057.8 | 13.1% | 8,742 |
| 2022 | 1,284.4 | 15.8% | 8,373 |
| 2023 | 1,540.7 | 19.0% | 8,483 |
| 2024 | 1,560.9 | 19.2% | 7,905 |
| 2025 | 1,579.1 | 19.5% | 7,740 |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | ST | 352 | 292 | May 1974 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combined Cycle | CA | 351 | 319 | Jul 1976 | Operating | — | coming soon |
| 3 | Natural Gas Fired Combined Cycle | CT | 189.6 | 157 | Mar 2010 | Operating | — | coming soon |
| 4 | Natural Gas Fired Combined Cycle | CT | 189.6 | 157 | Mar 2010 | Operating | — | 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% | 1,082 MW |
Nearby plants
Within 80 km.
| HEB00057 | 1 MW | 7.2 km |
| HEB00069 | 2 MW | 11 km |
| Chapman Ranch Wind I | 236 MW | 18.7 km |
| Cumbia Energy Center | — | 20 km |
| HEBCCBakery | 3 MW | 24.9 km |
| Corpus Christi Energy Center | 593 MW | 25.8 km |