# Graham

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

Luminant · Young County · ERCOT

Graham is a two-unit natural-gas steam-electric plant in Young County, Texas. EIA's May 2026 inventory reports 634.7 MW nameplate and 629 MW net summer and winter capability. Luminant states that Unit 1 entered commercial operation on December 19, 1960, and Unit 2 followed in 1969.

## Profile

- **Grid role:** Dispatchable two-unit steam generation in ERCOT.
- **Operating configuration:** Unit 1 is 247.7 MW nameplate and Unit 2 is 387 MW nameplate.
- **Market mapping:** ERCOT identifies GRSES_UNIT1 and GRSES_UNIT2 as the two Graham resources and current settlement points.

## Metrics

- **Net summer capacity:** 629 MW — EIA May 2026 · two generators
- **Nameplate capacity:** 634.7 MW — EIA May 2026
- **Net winter capacity:** 629 MW — EIA May 2026
- **Settlement points:** 2 — GRSES_UNIT1 · GRSES_UNIT2
- **Registry anchor:** Plant 3490 — Luminant Generation Company LLC

## Facts

- **Net summer capacity:** 629 MW — EIA May 2026 · confidence: high
- **Nameplate capacity:** 634.7 MW — EIA May 2026 · confidence: high
- **Net winter capacity:** 629 MW — EIA May 2026 · confidence: high
- **Operator:** Luminant Generation Company LLC — EIA May 2026 · confidence: high
- **Commercial operation:** Dec 19, 1960 — Unit 1 · Luminant · confidence: high

## Related parties

- **Operator:** Luminant Generation Company LLC — Operator for Graham ([source](https://luminant.com/))

## 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.
- [Luminant Graham 50th anniversary](https://www.luminant.com/graham-power-plant-celebrates-50-years-of-commercial-operation/) — Luminant · official — Official Unit 1 and Unit 2 service chronology.
- [ERCOT Graham resource record](https://www.ercot.com/files/docs/2021/02/15/Resource_list_021421_2100.pdf) — Electric Reliability Council of Texas · regulatory — Graham resource identifiers and unit ratings.

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Canonical page: https://askthegrid.com/assets/facilities/graham
Website: [Vistra Corp](https://vistracorp.com/)
Profile published: 2026-07-17T03:34:19.018Z
Source: Ask the Grid — https://askthegrid.com/