Barney M Davis
CPS EnergyNueces County
Barney M Davis is a natural gas-fired power facility with 1,082.2 MW of EIA-reported nameplate capacity in Nueces County, Texas, registered as EIA Plant ID 4939. City of San Antonio - (TX) is the registered plant entity or operator.
Mapped infrastructure geometry associated with this asset.
Natural Gas Fired Combined Cycle, Natural Gas Steam Turbine
Barney M Davis is currently operating; a closure or retirement is listed for before 2030.
Barney M Davis is currently operating; a closure or retirement is listed for before 2030.
138 kV · AEP Texas Central Company
EIA plant 4939 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 1 | Natural Gas Steam Turbine | Operating | 352 | Unknown |
| 2 | Natural Gas Fired Combined Cycle | Operating | 351 | Unknown |
| 3 | Natural Gas Fired Combined Cycle | Operating | 189.6 | Unknown |
| 4 | Natural Gas Fired Combined Cycle | Operating | 189.6 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 352 MW 292 MW summer | Natural Gas Steam Turbine ST | May 1974 | Operating |
| 2 | 351 MW 319 MW summer | Natural Gas Fired Combined Cycle CA | Jul 1976 | Operating |
| 3 | 189.6 MW 157 MW summer | Natural Gas Fired Combined Cycle CT | Mar 2010 | Operating |
| 4 | 189.6 MW 157 MW summer | Natural Gas Fired Combined Cycle CT | Mar 2010 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
EIA-860 lists generator 1 with this operating date.
ERCOT
ERCOT · Nueces County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
4 ERCOT market resources · Combined-cycle gas
Capacity factor is average output vs. this plant's observed peak.
Observed ERCOT settlement prices at B_DAVIS_3 over 364 days (2025-11-03 to 2026-11-01). This plant is also crosswalked to B_DAVIS_4, B_DAVIS_CC1, B_D_B_DAVIG1, B_D_B_DAVIG2; the point with the deepest price history is shown.
The TB2 figure is a price benchmark, not revenue: it values one perfect-foresight cycle per day between the 2 cheapest and 2 dearest hours of each day, gross of round-trip losses, and excludes ancillary services and any physical dispatch constraint. It describes what this node’s price shape was worth over the window — it is not this asset’s realized capture, and no dispatch is assumed or modelled.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| J K Spruce | 1,488.5 MW | TX | |
| Rio Nogales Power Project | 1,108 MW | TX | |
| Barney M DavisCurrent | 1,082.2 MW | TX | |
| O W Sommers | 892 MW | TX | |
| Nueces Bay | 730.2 MW | TX | |
| Topaz Generating | 605 MW | TX | |
| Arthur Von Rosenberg | 575 MW | TX | |
| Mark One Power Station | 484 MW | TX |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioEIA-860 lists generator 2 with this operating date.
The repowering project began in 2008. Existing Unit 2 was shut down and replaced through a two-for-one conversion using two new combined-cycle turbines, Units 3 and 4; Unit 1 was not affected.
EIA-860 lists generator 3, generator 4 with this operating date.
ERCOT received a Notification of Suspension of Operations for the 292 MW B_DAVIG1 resource associated with Barney Davis.
The ERCOT notice identified November 24, 2023 as the date on which B_DAVIG1 would indefinitely suspend operations, subject to any subsequent reliability procurement or other status change.
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Barney M Davis reports 1,082.2 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Barney M Davis is a Natural Gas Fired Combined Cycle, Natural Gas Steam Turbine facility in Nueces County, TX, participating in the ERCOT market.
Barney M Davis is in Nueces County, TX, inside the ERCOT balancing area.
Barney M Davis is operated by City of San Antonio - (TX) according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Barney M Davis reported 1,890.9 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Barney M Davis interconnects at Barney M. Davis Substation (ETT), on the AEP Texas Central Company system.
By capacity, Barney M Davis ranks #164 of 540 operating plants of the same technology nationally. It ranks #27 of 68 in TX.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
