Red Gate Power Plant
South Texas Electric Cooperative · Hidalgo County · ERCOT
Red Gate Power Plant is a 224.4 MW nameplate natural-gas reciprocating-engine facility in Hidalgo County, Texas, owned and operated by South Texas Electric Cooperative. EIA's May 2026 inventory lists twelve 18.7 MW generators with 219.6 MW of combined net summer capability and December 2016 service dates. Wärtsilä's supply announcement described a 225 MW project using twelve 18V50SG engines. The plant is represented in ERCOT by four resource aggregations at the REDGATE_RN settlement point.
Overview
Key fields
- Nameplate capacity
- 224.4 MW
EIA
- Net summer capability
- 219.6 MW
EIA
- Engine generators
- 12
Wärtsilä 18V50SG
- Commercial operation
- Dec 2016
EIA
- Settlement point
- REDGATE_RN
ERCOT settlement point.
- Resource stack
- 4 resources
REDGATE_AGR_A · REDGATE_AGR_B · REDGATE_AGR_C
- Registry anchor
- Plant 59391
South Texas Electric Cooperative
Profile
- Grid role
- Flexible natural-gas generation owned by a generation-and-transmission cooperative.
- Capacity scope
- 224.4 MW EIA nameplate · 219.6 MW net summer · 225 MW supplier project description.
- Equipment
- Twelve Wärtsilä 18V50SG reciprocating engines.
- Market model
- Four ERCOT resource aggregations at REDGATE_RN.
Structured profile
- Nameplate capacity
- 224.4 MW
EIA
- Net summer capability
- 219.6 MW
EIA
- Equipment
- 12 Wärtsilä 18V50SG engines
Wärtsilä
- Owner and operator
- South Texas Electric Cooperative
EIA
Units and generators
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| ENG01 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG02 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG03 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG04 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG05 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG06 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG07 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG08 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG09 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG10 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG11 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
| ENG12 | 18.7 MW 18.3 MW summer | Natural Gas Internal Combustion Engine Natural Gas · IC | Dec 2016 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 224.4 MW
- National rank
- #4
- TX rank
- #2
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
4 ERCOT market resources · Diesel
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 |
|---|---|---|
| Owner and EIA registered operator | EIA May 2026 generator inventory | |
| Market resources | REDGATE_AGR_A, REDGATE_AGR_B, REDGATE_AGR_C, REDGATE_AGR_D | Linked ERCOT resources. |
| Grid selection | plant:plant-59391 | Canonical asset page /ercot/assets/plant/red-gate-power-plant. |
Reporting portfolio
| Largest reported plants | Capacity | State |
|---|---|---|
| Red Gate Power PlantCurrent | 224.4 MW | TX |
| Pearsall | 201.6 MW | TX |
| Sam Rayburn | 192.8 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
- Engine Order AnnouncedWärtsilä Re...
Wärtsilä announced twelve 18V50SG engines for the project.
- Generators Entered ServiceEIA May 202...
EIA reports December 2016 for all twelve units.
- ERCOT aggregation change notice issuedERCOT Red G...
ERCOT documented the plant's resource-aggregation configuration.
- Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.
Sources
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