Nueces Bay
CPS Energy · Nueces County · ERCOT
Nueces Bay is a three-generator natural-gas combined-cycle facility in Corpus Christi, Texas. EIA's May 2026 inventory reports 730.2 MW nameplate, 633 MW net summer, and 655 MW net winter capability. Unit 7 entered service in July 1972; Units 8 and 9 entered service in March 2010.
Overview
Key fields
- Net summer capacity
- 633 MW
EIA May 2026 · three generators
- Nameplate capacity
- 730.2 MW
EIA May 2026
- Net winter capacity
- 655 MW
EIA May 2026
- Company rating
- 635 MW
CPS Energy acquisition announcement
- Portfolio acquisition
- $785M
1,710 MW · three facilities
- Registry anchor
- Plant 3441
City of San Antonio
Resource stack
- 2 resources
NUECES_B_CC1_1 · NUECES_B_CC1_2
Profile
- Grid role
- Dispatchable combined-cycle generation in ERCOT's South region.
- Operating configuration
- Three EIA generator records: Unit 7 at 351 MW nameplate and Units 8 and 9 at 189.6 MW each.
- Capacity scope
- EIA reports 730.2 MW nameplate, 633 MW net summer, and 655 MW net winter. CPS Energy uses a separate 635 MW facility rating.
Structured profile
- Net summer capacity
- 633 MW
EIA May 2026
- Nameplate capacity
- 730.2 MW
EIA May 2026
- Net winter capacity
- 655 MW
EIA May 2026
- Owner and operator
- CPS Energy
Acquired May 1, 2024
- Portfolio transaction
- $785M
Three facilities · 1,710 MW · not allocated by plant
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 5 | 32.5 MW 30 MW summer | Natural Gas Steam Turbine Natural Gas · ST | — | Operating |
| 6 | 180 MW 161 MW summer | Natural Gas Steam Turbine Natural Gas · ST | May 1965 | Operating |
| 7 | 351 MW 319 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Jul 1972 | Operating |
| 8 | 189.6 MW 157 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Mar 2010 | Operating |
| 9 | 189.6 MW 157 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Mar 2010 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 730.2 MW
- National rank
- #163
- TX rank
- #27
Monthly generation
Download CSVMonthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
ERCOT disclosed dispatch
2 ERCOT market resources · Combined-cycle gas
Generation
3 mo through May 22, 2026Capacity factor is average output vs. this plant's observed peak.
Output by hourlocal time · 90 days through May 22, 2026
Latest disclosed outputhourly · 2 weeks ending May 22, 2026
Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
ERCOT public disclosuresOperating context
ERCOT market recordsNearby substations
HIFLD infrastructure inventoryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
Drag organizations to explore the network. Select a node to pin its details and available page link.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Portfolio owner | Financing covers a portfolio that includes Nueces Bay. | |
| Portfolio operator | Financing covers a portfolio that includes Nueces Bay. | |
| Market resources | NUECES_B_CC1_1, NUECES_B_CC1_2 | Linked ERCOT resources. |
| Grid selection | plant:plant-3441 | Canonical asset page /ercot/assets/plant/nueces-bay. |
Reporting portfolio
| Largest reported plants | Capacity | State |
|---|---|---|
| J K Spruce | 1,488.5 MW | TX |
| V H Braunig | 1,138 MW | TX |
| Barney M Davis | 1,082.2 MW | TX |
| Rio Nogales Power Project | 940.2 MW | TX |
| O W Sommers | 892 MW | TX |
| Nueces BayCurrent | 730.2 MW | TX |
| Topaz Generating | 605 MW | TX |
| Arthur Von Rosenberg | 575 MW | TX |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioTimeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Generator enters operationEIA-860
EIA-860 lists generator 6 with this operating date.
- Unit 7 entered serviceEIA May 202...
EIA reports July 1972 as Unit 7's operating month.
- Units 8 and 9 entered serviceEIA May 202...
EIA reports March 2010 for the two 189.6 MW generator records.
- CPS Energy announced portfolio acquisitionCPS Energy ...
CPS Energy agreed to acquire three Talen facilities, including Nueces Bay.
- CPS Energy completed portfolio acquisitionCPS Energy ...
CPS Energy closed the $785 million acquisition of the 1,710 MW portfolio.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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