# Red Gate Power Plant

ERCOT asset profile · https://askthegrid.com/assets/facilities/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.

## 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.

## Metrics

- **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

## Facts

- **Nameplate capacity:** 224.4 MW — EIA · confidence: high
- **Net summer capability:** 219.6 MW — EIA · confidence: high
- **Equipment:** 12 Wärtsilä 18V50SG engines — Wärtsilä · confidence: high
- **Owner and operator:** South Texas Electric Cooperative — EIA · confidence: high

## Related parties

- **Owner and EIA registered operator:** South Texas Electric Cooperative — EIA May 2026 generator inventory ([source](https://www.stec.org/))

## Sources

- [EIA May 2026 generator inventory](https://www.eia.gov/electricity/data/eia860m/) — U.S. Energy Information Administration · regulatory — Current generator records, capacity scopes, dates, status, operator, and technology.
- [Wärtsilä Red Gate announcement](https://www.wartsila.com/media/news/08-01-2013-wartsila-to-supply-225-mw-flexible-power-plant-to-texas-utility) — Wärtsilä · official — Project scope, engine count and model.
- [ERCOT Red Gate notice](https://www.ercot.com/services/comm/mkt_notices/M-E032924-02) — ERCOT · regulatory — Resource-aggregation configuration.

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Canonical page: https://askthegrid.com/assets/facilities/red-gate-power-plant
Website: [South Texas Electric Cooperative](https://www.wartsila.com/media/news/08-01-2013-wartsila-to-supply-225-mw-flexible-power-plant-to-texas-utility)
Profile published: 2026-07-17T03:34:44.065Z
Source: Ask the Grid — https://askthegrid.com/