# Barney M Davis

ERCOT Natural Gas Fired Combined Cycle, Natural Gas Steam Turbine · https://askthegrid.com/assets/facilities/barney-m-davis

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.

## Key facts

- Technology: Natural Gas Fired Combined Cycle, Natural Gas Steam Turbine
- Power capacity: 1082.2 MW
- Operating status: operating
- Retirement: before 2030

## Grid and market context

- ISO/RTO: ERCOT
- Balancing authority: ERCOT
- Substation: Barney M. Davis Substation (ETT)
- Point of interconnection: Barney M. Davis Substation (ETT)
- Transmission owner: AEP Texas Central Company
- Interconnection voltage: 138 kV

## Source-backed facts

- Owner logo domain: cpsenergy.com — About Us - CPS Energy Newsroom · confidence: medium
- Identifiers: [{"value":"4939","system":"EIA plant ID"},{"value":"ERCOT","system":"ISO/RTO"},{"value":"4","system":"EIA generator ID"},{"value":"CC1","system":"EIA unit code"},{"value":"B_DAVIS_B_DAVIG1","system":"ERCOT market resource"},{"value":"B_DAVIS_CC1_1","system":"ERCOT market resource"},{"value":"B_DAVIS_CC1_2","system":"ERCOT market resource"},{"value":"B_DAVIS_CC1_3","system":"ERCOT market resource"}] — Source · confidence: medium
- Description: Barney M Davis is a natural-gas electric generating plant in Corpus Christi, Nueces County, Texas, identified by EIA plant ID 4939. EIA/FERC records identify City of San Antonio - (TX) as the utility and list generator 4, unit CC1, with 189.6 MW of nameplate capacity. The plant includes combined-cycle and steam-turbine generation, and CPS Energy acquired the Barney Davis assets from Talen Energy in 2024. — Source · confidence: medium
- Description: Barney M Davis is a natural-gas electric generating plant in Corpus Christi, Nueces County, Texas, identified by EIA plant ID 4939. EIA/FERC records identify City of San Antonio - (TX) as the utility and list generator 4, unit CC1, with 189.6 MW of nameplate capacity. The plant includes combined-cycle and steam-turbine generation, and CPS Energy acquired the Barney Davis assets from Talen Energy in 2024. — Source · confidence: medium
- Canonical name: Barney M Davis — Source · confidence: high
- Identifiers.0: {"value":"4939","system":"EIA plant ID"} — Source · confidence: high
- Identifiers.2: {"value":"4","system":"EIA generator ID"} — Source · confidence: high
- Identifiers.3: {"value":"CC1","system":"EIA unit code"} — Source · confidence: high
- Parties.0: {"relationship":"Current owner and operator","name":"CPS Energy","official_url":"https://www.cpsenergy.com/"} — Source · confidence: high
- Parties.1: {"relationship":"EIA-listed utility","name":"City of San Antonio - (TX)","official_url":null} — Source · confidence: high
- Parties.4: {"relationship":"Former operator","name":"Consolidated Asset Management Services (CAMS)","official_url":null} — Source · confidence: high
- Parties.5: {"relationship":"Steam-turbine OEM","name":"Siemens Energy","official_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/steam-turbines.html"} — Power plant profile: Barney Davis Energy Center, US · confidence: high
- Parties.5: {"relationship":"Steam-turbine OEM","name":"Siemens Energy","official_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/steam-turbines.html"} — Reliable steam turbines for improved efficiency · confidence: high
- Parties.6: {"relationship":"Gas-turbine OEM","name":"GE Power / GE Vernova","official_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7f"} — Power plant profile: Barney Davis Energy Center, US · confidence: high
- Parties.6: {"relationship":"Gas-turbine OEM","name":"GE Power / GE Vernova","official_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7f"} — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 · confidence: high
- Parties.7: {"relationship":"HRSG/steam-boiler supplier","name":"Nooter/Eriksen","official_url":"https://cicgroup.com/nooter-eriksen/heat-recovery-steam-generators-hrsgs/"} — Power plant profile: Barney Davis Energy Center, US · confidence: high
- Parties.7: {"relationship":"HRSG/steam-boiler supplier","name":"Nooter/Eriksen","official_url":"https://cicgroup.com/nooter-eriksen/heat-recovery-steam-generators-hrsgs/"} — Heat Recovery Steam Generators - HRSGs - Nooter Eriksen · confidence: high
- Parties.8: {"relationship":"Fuel supplier","name":"ONYX GAS MARKETING CO","official_url":null} — Power plant profile: Barney Davis Energy Center, US · confidence: medium
- Product url: https://www.gevernova.com/gas-power/products/gas-turbines/7f — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: medium
- Manufacturer domain: gevernova.com — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: medium
- Product family: GE 7FA.03 / GE 7F gas turbine family — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: medium
- Manufacturer name: GE Power / GE Vernova — 7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova · confidence: medium
- Equipment models.1: {"manufacturer_domain":"cicgroup.com","product_url":"https://cicgroup.com/nooter-eriksen/heat-recovery-steam-generators-hrsgs","count":2,"unit_mw":null,"name":"Nooter/Eriksen heat-recovery steam generator (HRSG)"} — Heat Recovery Steam Generators - HRSGs - Nooter Eriksen · confidence: high
- Timeline: [{"event":"Initial commercial operation","date":"1974-05","detail":"The original Barney Davis Unit 1, a 352 MW natural-gas steam turbine, began operating in May 1974."},{"event":"Combined-cycle phase commissioned","date":"1976-07","detail":"The 351 MW combined-cycle phase is recorded as operating or commissioned in July 1976."},{"event":"Repowering construction began","date":"2008","detail":"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."},{"event":"Repowering completed and units returned to service","date":"2010-03","detail":"The repowering was completed in 2010. Units 3 and 4 became commercially available to the ERCOT grid in March 2010 after CEMS certification in February 2010."},{"event":"Suspension notification filed","date":"2023-06-27","detail":"ERCOT received a Notification of Suspension of Operations for the 292 MW B_DAVIG1 resource associated with Barney Davis."},{"event":"Planned indefinite suspension date","date":"2023-11-24","detail":"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."},{"event":"Acquisition agreement announced","date":"2024-03-27","detail":"CPS Energy agreed to acquire Talen's approximately 1,710 MW ERCOT portfolio, including the Barney Davis assets, for $785 million subject to customary closing conditions and net-working-capital adjustments."},{"event":"Acquisition closed","date":"2024-05-01","detail":"CPS Energy completed its acquisition from Talen Energy of the assets associated with the Barney Davis, Nueces Bay, and Laredo natural-gas facilities."}] — Source · confidence: medium
- Timeline.2: {"event":"Repowering construction began","date":"2008","detail":"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."} — Source · confidence: medium
- Timeline.3: {"event":"Repowering completed and units returned to service","date":"2010-03","detail":"The repowering was completed in 2010. Units 3 and 4 became commercially available to the ERCOT grid in March 2010 after CEMS certification in February 2010."} — Source · confidence: high
- Timeline.6: {"event":"Acquisition agreement announced","date":"2024-03-27","detail":"CPS Energy agreed to acquire Talen's approximately 1,710 MW ERCOT portfolio, including the Barney Davis assets, for $785 million subject to customary closing conditions and net-working-capital adjustments."} — CPS Energy Acquires Gas Plants in Corpus Christi and Laredo From Talen Energy as Part of Approved Generation Plan | Wed, 03/27/2024 - 08:00 · confidence: high
- Commercial parties.4: {"relationship":"Former operator","name":"Consolidated Asset Management Services (CAMS)","detail":"Reported as the operator of Barney Davis Energy Center during the former Talen ownership period.","official_url":null} — Source · confidence: medium
- Commercial parties.5: {"relationship":"Steam-turbine OEM","name":"Siemens Energy","detail":"Reported supplier of the steam turbine for the original Unit I phase.","official_url":"https://www.siemens-energy.com/global/en/home/products-services/product-offerings/steam-turbines.html"} — Power plant profile: Barney Davis Energy Center, US · confidence: medium
- Commercial parties.6: {"relationship":"Gas-turbine OEM","name":"GE Power / GE Vernova","detail":"Reported supplier of the two 7F.04 gas turbines used in the repowered combined-cycle phase.","official_url":"https://www.gevernova.com/gas-power/products/gas-turbines/7f"} — Power plant profile: Barney Davis Energy Center, US · confidence: medium
- Commercial parties.7: {"relationship":"HRSG/steam-boiler supplier","name":"Nooter/Eriksen","detail":"Reported supplier of the steam boilers or heat-recovery steam generators for the two repowered combined-cycle units.","official_url":"https://cicgroup.com/nooter-eriksen/heat-recovery-steam-generators-hrsgs/"} — Power plant profile: Barney Davis Energy Center, US · confidence: medium
- Commercial parties.8: {"relationship":"Fuel supplier","name":"ONYX GAS MARKETING CO","detail":"Reported gas supplier for the Barney Davis Energy Center.","official_url":null} — Power plant profile: Barney Davis Energy Center, US · confidence: medium
- Retirement date: before 2030 — Appendix A Narrative @ 01/31/26 (SMEs) · confidence: medium
- Balancing authority: ERCOT — Source · confidence: high
- Retirement scope: unit — Appendix A Narrative @ 01/31/26 (SMEs) · confidence: high
- Resource type: GEN; ERCOT classifications include GAS-ST and GAS-CC — Source · confidence: high
- Grid role: Dispatchable, cyclic gas generation: units are typically cycled during peak-load months and operated in standby during shoulder months to cover native load and pursue ERCOT market opportunities. — Source · confidence: medium
- Operating status: operating — Appendix A Narrative @ 01/31/26 (SMEs) · confidence: medium

## Timeline

- 2008 — Repowering construction began
  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.
  Source: Source (https://downloads.regulations.gov/EPA-HQ-OAR-2009-0491-4755/attachment_1.pdf)
- 2023-06-27 — Suspension notification filed
  ERCOT received a Notification of Suspension of Operations for the 292 MW B_DAVIG1 resource associated with Barney Davis.
  Source: Market Notice Details (https://www.ercot.com/services/comm/mkt_notices/M-B062723-03)
- 2023-11-24 — Planned indefinite suspension date
  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.
  Source: Market Notice Details (https://www.ercot.com/services/comm/mkt_notices/M-B062723-03)

## Sources

- [About Us - CPS Energy Newsroom](https://newsroom.cpsenergy.com/about-us/) — newsroom.cpsenergy.com · tier other
- [Source](https://mbrweb.ferc.gov/SearchlkpEIA/Index?page=664) — mbrweb.ferc.gov · tier regulatory
- [Source](https://newsroom.cpsenergy.com/cps-energy-closes-on-previously-announced-acquisition-of-talen-energy-gas-plants-in-corpus-christi-and-laredo) — newsroom.cpsenergy.com · tier other
- [Source](https://www.ccj-online.com/best-practices-barney-davis/) — ccj-online.com · tier other
- [Power plant profile: Barney Davis Energy Center, US](https://www.power-technology.com/data-insights/power-plant-profile-barney-davis-energy-center-us/) — power-technology.com · tier other
- [Steam turbines](https://www.siemens-energy.com/global/en/home/products-services/product-offerings/steam-turbines.html) — siemens-energy.com · tier other
- [7F Heavy Duty Gas Turbine | 7F.04/7F.05 | GE Vernova](https://www.gevernova.com/gas-power/products/gas-turbines/7f) — gevernova.com · tier other
- [Heat Recovery Steam Generators - HRSGs - Nooter Eriksen](https://cicgroup.com/nooter-eriksen/heat-recovery-steam-generators-hrsgs/) — cicgroup.com · tier other
- [Source](https://media.fisheries.noaa.gov/dam-migration/draft_ea_barneydavis_itp_final_for_website_508.pdf) — media.fisheries.noaa.gov · tier regulatory
- [Management And Operations Quarterly Update (Ending April 30, 2025)](https://www.cpsenergy.com/content/dam/corporate/en/Documents/Finance/CPS%20Appendix%20A%20(04.30.25)vF.pdf) — cpsenergy.com · tier other
- [Heat Recovery Steam Generators - HRSGs - Nooter Eriksen](https://cicgroup.com/nooter-eriksen/heat-recovery-steam-generators-hrsgs) — cicgroup.com · tier other
- [Source](https://downloads.regulations.gov/EPA-HQ-OAR-2009-0491-4755/attachment_1.pdf) — downloads.regulations.gov · tier regulatory
- [Market Notice Details](https://www.ercot.com/services/comm/mkt_notices/M-B062723-03) — ercot.com · tier regulatory
- [CPS Energy Acquires Gas Plants in Corpus Christi and Laredo From Talen Energy as Part of Approved Generation Plan | Wed, 03/27/2024 - 08:00](https://ir.talenenergy.com/news-releases/news-release-details/cps-energy-acquires-gas-plants-corpus-christi-and-laredo-talen/) — ir.talenenergy.com · tier other
- [Source](https://ccj-online.com/best-practices-barney-davis) — ccj-online.com · tier other
- [Source](https://www.ercot.com/files/docs/2026/05/01/MORA_July2026.pdf) — ercot.com · tier regulatory
- [Appendix A Narrative @ 01/31/26 (SMEs)](https://www.cpsenergy.com/content/dam/corporate/en/Documents/Finance/AppendixANarrative%4001.31.26_vF_ada_050126.pdf) — cpsenergy.com · tier other

## Data quality

- Current EIA-linked records report 1,082.2 MW across four generators, while the May 2024 acquisition release described the Barney Davis transaction asset group as 897 MW; the figures reflect different reporting scopes. ERCOT received a June 27, 2023 notification that the 292 MW B_DAVIG1 resource would indefinitely suspend operations beginning November 24, 2023. The notice documents a planned suspension rather than a confirmed permanent retirement, and later plant records list the facility as operational. The 2024 transaction value of $785 million covered Talen's approximately 1,710 MW ERCOT portfolio, including Barney Davis, Nueces Bay, and a Laredo facility; it should not be treated as a standalone Barney Davis valuation. No separate project-finance debt, equity financing, or construction financing terms were disclosed in the cited transaction materials.

---

Canonical page: https://askthegrid.com/assets/facilities/barney-m-davis

Source: Ask the Grid — https://askthegrid.com/