# Green Power 2

ERCOT asset profile · https://askthegrid.com/assets/facilities/green-power-2

Marathon Petroleum · Galveston County · ERCOT

Green Power 2 is an industrial combined-heat-and-power facility at the Galveston Bay refinery complex in Texas City, Texas. EIA's May 2026 inventory lists five combined-cycle generator records totaling 861 MW nameplate, 624 MW net summer, and 645 MW net winter capability. Four records are operating; ST805 is out of service and not expected to return within the next calendar year. Excluding ST805, the four operating records total 611 MW nameplate, 549 MW net summer, and 570 MW net winter capability.

## Profile

- **Grid role:** Industrial combined heat and power at the Galveston Bay refinery complex.
- **Operating configuration:** Four operating EIA records total 611 MW nameplate; a fifth 250 MW record, ST805, is currently out of service.
- **Capacity scope:** All five records total 861 MW nameplate and 624 MW net summer; currently operating records total 611 MW nameplate and 549 MW net summer.
- **Market mapping:** ERCOT's current public list includes AMOCOOIL_CC1 and AMOCOOIL_CC2 plus related AMOCO unit and PUN points.

## Metrics

- **Operating net summer:** 549 MW — Four operating EIA records
- **Operating nameplate:** 611 MW — Excludes ST805
- **Inventory net summer:** 624 MW — All five EIA records
- **Inventory nameplate:** 861 MW — Includes out-of-service ST805
- **Out-of-service record:** ST805 — 250 MW nameplate · 75 MW summer
- **Registry anchor:** Plant 55470 — South Houston Green Power LLC

## Facts

- **Operating net summer:** 549 MW — Four operating EIA records · confidence: high
- **Operating nameplate:** 611 MW — Excludes ST805 · confidence: high
- **Inventory net summer:** 624 MW — All five EIA records · confidence: high
- **Inventory nameplate:** 861 MW — Includes ST805 · confidence: high

## Related parties

- **Owner:** South Houston Green Power — Owner for Green Power 2
- **Operator:** South Houston Green Power — Operator for Green Power 2

## 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.

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Canonical page: https://askthegrid.com/assets/facilities/green-power-2
Website: [South Houston Green Power](https://www.marathonpetroleum.com/Operations/Refining/Galveston-Bay-Refinery/)
Profile published: 2026-07-17T03:34:19.858Z
Source: Ask the Grid — https://askthegrid.com/