Trinidad (TX)
Luminant Generation Company LLC · Henderson County · ERCOT
Trinidad is an operating thermal generation facility in Henderson County, Texas. EIA's May 2026 inventory lists Plant ID 3507 with 243.3 MW of nameplate capacity and 239 MW of net summer capability: a 239.3 MW natural-gas steam unit that entered service in May 1965 and two 2 MW petroleum-liquid generators added in August 1966.
Overview
Key fields
- Net summer capability
- 239 MW
EIA May 2026
- Nameplate capacity
- 243.3 MW
Three operating generators
- Gas steam unit
- 239.3 MW
May 1965
- Petroleum units
- 2 × 2 MW
Aug 1966
- Settlement point
- TRSES_UNIT6
ERCOT settlement point.
- Registry anchor
- Plant 3507
Luminant Generation Company LLC
Resource stack
- 1 resource
TRSES_UNIT6
Profile
- Grid role
- Dispatchable thermal generation in ERCOT.
- Capacity scope
- 243.3 MW EIA nameplate · 239 MW EIA net summer capability.
- Operating configuration
- One 239.3 MW gas steam unit · two 2 MW petroleum-liquid generators.
- Status reconciliation
- A 2020 retirement plan targeted April 2021; May 2026 EIA and current ERCOT records still list the facility as operating.
Structured profile
- Net summer capability
- 239 MW
EIA
- Nameplate capacity
- 243.3 MW
EIA
- Registered operator
- Luminant Generation Company LLC
EIA
- Current ERCOT point
- TRSES_UNIT6
ERCOT
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 6 | 239.3 MW 235 MW summer | Natural Gas Steam Turbine Natural Gas · ST | May 1965 | Operating |
| D1 | 2 MW 2 MW summer | Petroleum Liquids Disillate Fuel Oil · IC | Aug 1966 | Operating |
| D2 | 2 MW 2 MW summer | Petroleum Liquids Disillate Fuel Oil · IC | Aug 1966 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 239.3 MW
- National rank
- #93
- TX rank
- #23
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
1 ERCOT market resource · Gas steam
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
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Parties and identifiers
| Relationship | Entity | Basis |
|---|---|---|
| EIA registered operator | Luminant Generation Company LLC | EIA May 2026 generator inventory |
| Market resources | TRSES_UNIT6 | Linked ERCOT resources. |
| Grid selection | plant:plant-3507 | Canonical asset page /ercot/assets/plant/trinidad-tx. |
Reporting portfolio
| Largest reported plants | Capacity | State |
|---|---|---|
| Comanche Peak | 2,430 MW | TX |
| Martin Lake | 2,379.6 MW | TX |
| Oak Grove (TX) | 1,795.4 MW | TX |
| Lake Hubbard | 927.5 MW | TX |
| Stryker Creek | 713.4 MW | TX |
| Graham | 634.7 MW | TX |
| DeCordova Steam Electric Station | 626.7 MW | TX |
| Morgan Creek | 536.4 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
- Natural-gas steam unit entered serviceEIA May 202...
EIA reports May 1965 for Unit 6.
- Petroleum-liquid generators entered serviceEIA May 202...
EIA reports August 1966 for D1 and D2.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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