Deer Park Energy Center
Calpine / Constellation · Harris County · ERCOT
Deer Park Energy Center is a six-generator natural-gas combined-cycle cogeneration facility in Harris County, registered as EIA Plant ID 55464. EIA's May 2026 inventory lists 1,176 MW nameplate, 1,192 MW net summer, and 1,237 MW net winter capability across five combustion turbines and one steam turbine. The original trains entered service in 2003 and 2004; CTG6 entered service in 2014. ERCOT maps all six resources to the DDPEC resource node.
Overview
Key fields
- Net summer capability
- 1,192 MW
EIA May 2026 · six operating generators
- Nameplate / winter
- 1,176 / 1,237 MW
EIA May 2026
- Technology
- Combined-cycle cogeneration
Five combustion turbines · one steam turbine
- Registry anchor
- Plant 55464
Deer Park Energy Center · Harris County
- Resource node
- DDPEC
ERCOT
- Resource stack
- 6 resources
DDPEC_GT1 · DDPEC_GT2 · DDPEC_GT3
Profile
- ERCOT configuration
- Six thermal resources at resource node DDPEC: five gas turbines and one steam turbine.
- Cogeneration role
- Calpine identifies Deer Park as a Houston Ship Channel cogeneration facility that supplies steam to the petrochemical industry.
- Physical build
- Five 180 MW nameplate combustion turbines and one 276 MW nameplate steam turbine. EIA lists the gas turbines in 2003, 2004, and 2014 and the steam turbine in 2004.
- Carbon capture
- Calpine, Shell, and project partners describe a FEED-stage system designed for roughly 5 million tonnes of net CO2 capture per year. No operating capture installation is claimed.
Structured profile
- Project company
- Deer Park Energy Center LLC
TCEQ RN100222033
- Operating service
- 2003 · 2004 · 2014
Generator operating vintages
- Site address
- 5665 Highway 225
Deer Park, TX 77536
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| CTG1 | 180 MW 182 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2003 | Operating |
| CTG2 | 180 MW 182 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2003 | Operating |
| CTG3 | 180 MW 182 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2004 | Operating |
| CTG4 | 180 MW 182 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2004 | Operating |
| CTG6 | 180 MW 182 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CT | Jun 2014 | Operating |
| STG1 | 276 MW 282 MW summer | Natural Gas Fired Combined Cycle Natural Gas · CA | Jun 2004 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 1,176 MW
- National rank
- #64
- TX rank
- #7
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
5 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.
Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| Market resources | DDPEC_CC1_1, DDPEC_CC1_2, DDPEC_CC1_3, DDPEC_CC1_4, DDPEC_CC1_6 | Linked ERCOT resources. |
| Grid selection | plant:plant-55464 | Canonical asset page /ercot/assets/plant/deer-park-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 generating trains entered serviceEIA May 202...
EIA lists June 2003 operating dates for CTG1 and CTG2.
- Additional combined-cycle trains entered serviceEIA May 202...
EIA lists June 2004 operating dates for CTG3, CTG4, and STG1.
- CTG6 Entered ServiceEIA May 202...
EIA lists June 2014 as the operating date for the sixth generator.
- Carbon-Capture FEED AnnouncedShell Deer ...
Shell described the Deer Park FEED study and a design target of roughly 5 million tonnes of net CO2 capture per year.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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