# Mountain Creek

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

Mountain Creek Power, LLC · Dallas County · ERCOT

Mountain Creek Steam Electric Station is a three-unit natural-gas steam plant in Dallas, Texas. EIA's May 2026 inventory reports 852.2 MW nameplate and 808 MW net summer and winter capability. Units 6, 7, and 8 began operating in February 1956, March 1958, and July 1967, respectively. Mountain Creek Power, LLC is the registered operator and the holder of TCEQ Federal Operating Permit O58.

## Profile

- **Grid role:** Dispatchable natural-gas steam generation in ERCOT.
- **Operating configuration:** Three steam turbines: units 6, 7, and 8.
- **Market mapping:** ERCOT's current public price list includes MCSES_UNIT6, MCSES_UNIT7, and MCSES_UNIT8.
- **Environmental record:** TCEQ RN101559235; Federal Operating Permit O58; NSR permit 45417; wastewater permit WQ0001250000.

## Metrics

- **Net summer capacity:** 808 MW — EIA May 2026 · three generators
- **Nameplate capacity:** 852.2 MW — 135.7 MW · 136 MW · 580.5 MW
- **Net winter capacity:** 808 MW — EIA May 2026
- **2024 generation:** 479 GWh — EIA 923 · 2024 calendar year
- **Settlement points:** MCSES_UNIT6-8 — ERCOT current public listing
- **Registry anchor:** Plant 3453 — Mountain Creek Power, LLC

## Facts

- **Owner / operator:** Mountain Creek Power, LLC — EIA and TCEQ · confidence: high
- **Operating generators:** 3 — 1956 · 1958 · 1967 · confidence: high
- **Plant type:** Natural-gas steam — Non-CHP · confidence: high
- **TCEQ entity:** RN101559235 — O58 · NSR 45417 · confidence: high

## Related parties

- **Owner:** Trafigura — Owner for Mountain Creek ([source](https://trafigura.com/))
- **Co-owner:** Frontier Group of Companies — Co-owner for Mountain Creek ([source](https://frontier-us.com/))

## Sources

- [EIA May 2026 generator inventory](https://www.eia.gov/electricity/data/eia860m/) — U.S. Energy Information Administration · regulatory — Current units, ratings, dates, operator, technology, and balancing authority.
- [Mountain Creek TCEQ operating record](https://records.tceq.texas.gov/cs/idcplg?IdcService=TCEQ_EXTERNAL_SEARCH_GET_FILE&dID=8657612&Rendition=Web&searchType=Internal) — Texas Commission on Environmental Quality · regulatory — Exact-site environmental identity and permit context.

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Canonical page: https://askthegrid.com/assets/facilities/mountain-creek
Website: [Trafigura / Frontier Group](https://trafigura.com/)
Profile published: 2026-07-17T03:34:34.792Z
Source: Ask the Grid — https://askthegrid.com/