Quail Run Energy Center
Calpine · Ector County · ERCOT
Quail Run Energy Center is a two-block natural-gas combined-cycle plant in Ector County, Texas. EIA's May 2026 inventory reports six operating generators totaling 550.4 MW nameplate, 472.2 MW net summer, and 532.2 MW net winter capability. Four combustion turbines and two steam turbines entered service between May 2002 and May 2008. Calpine acquired the facility from Lotus Infrastructure Partners in September 2024 and describes it as a 550 MW plant.
Overview
Key fields
- Net summer capacity
- 472.2 MW
EIA May 2026
- Nameplate capacity
- 550.4 MW
EIA May 2026
- Net winter capacity
- 532.2 MW
EIA May 2026
- Operating generators
- 6
4 combustion turbines · 2 steam turbines
- Company rating
- 550 MW
Calpine
- Registry anchor
- Plant 56349
Quail Run Energy Partners, LP
Resource stack
- 8 resources
QALSW_CC1_1 · QALSW_CC1_2
Profile
- Grid role
- Dispatchable two-block natural-gas combined-cycle generation in ERCOT.
- Operating configuration
- Four combustion turbines and two steam turbines grouped into two combined-cycle blocks.
- Capacity scope
- EIA reports 550.4 MW nameplate, 472.2 MW net summer, and 532.2 MW net winter capability; Calpine uses a 550 MW company rating.
Structured profile
- Net summer capacity
- 472.2 MW
EIA May 2026
- Nameplate capacity
- 550.4 MW
EIA May 2026
- Net winter capacity
- 532.2 MW
EIA May 2026
- Current owner
- Calpine
Acquired September 2024
- Configuration
- 2 combined-cycle blocks · 6 generators
EIA May 2026
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CT1A | 90.6 MW 70 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 2007 | Operating |
| CT1B | 90.6 MW 70 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 2007 | Operating |
| CT2A | 86.5 MW 68 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 2002 | Operating |
| CT2B | 86.5 MW 68 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | May 2002 | Operating |
| ST1 | 98.1 MW 98.1 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | May 2007 | Operating |
| ST2 | 98.1 MW 98.1 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | May 2008 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 550.4 MW
- National rank
- #290
- TX rank
- #44
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
8 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 |
|---|---|---|
| Registered plant entity | Quail Run Energy Partners, LP | EIA May 2026 generator inventory |
| Market resources | QALSW_CC1_1, QALSW_CC1_2, QALSW_CC1_3, QALSW_CC1_4, QALSW_CC2_1 | 8 linked ERCOT resources. |
| Grid selection | plant:plant-56349 | Canonical asset page /ercot/assets/plant/quail-run-energy-center. |
Reporting portfolio
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- First combustion-turbine block entered serviceEIA May 202...
EIA reports May 2002 for CT2A and CT2B.
- Second combustion-turbine block entered serviceEIA May 202...
EIA reports May 2007 for CT1A and CT1B.
- Newest listed steam turbine entered serviceEIA May 202...
EIA reports May 2008 for ST2.
- Calpine announced the acquisitionCalpine Qua...
Calpine publicly announced that it had acquired the 550 MW facility from Lotus.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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