# Los Medanos Energy Center

CAISO asset profile · https://askthegrid.com/assets/facilities/los-medanos-energy-center

Los Medanos Energy Center LLC - Contra Costa County - CAISO

Los Medanos Energy Center is a natural-gas-fired combined-cycle cogeneration facility located on a 12-acre site in Pittsburg, Contra Costa County, California, adjacent to the USS-POSCO steel mill. The facility consists of two General Electric Frame 7FA gas turbines, two Nooter/Eriksen heat-recovery steam generators, and one General Electric D11 steam turbine in a 2×1 configuration. Reclaimed water for cooling is supplied by the Delta Diablo Sanitation District.

## Metrics

- **Nameplate capacity:** 678.3 MW — Canonical EIA plant baseline.
- **Registry anchor:** Plant 55217 — plant-55217

## Facts

- **Technology:** Natural Gas Fired Combined Cycle
- **Operator:** Calpine Corporation

## Related parties

- **Parent company:** Constellation Energy Corporation — Current corporate parent ([source](https://www.constellationenergy.com/))
- **Former owner / operator / developer:** Calpine Corporation — Developer, former owner, operator ([source](https://www.calpine.com/))
- **Former owner / developer:** Enron Corporation / Enron North America — Original developer and prior owner
- **EPC contractor / construction contractor:** Kiewit Industrial Company — Constructor and commissioning contractor ([source](https://www.kiewit.com/))
- **Offtaker:** San Francisco Bay Aggregates — Carbon-capture project developer
- **Regulator:** California Energy Commission — California siting and certification regulator ([source](https://www.energy.ca.gov/))

## Sources

- [powergen.wordpress.com](https://powergen.wordpress.com/2008/06/18/los-medanos-energy-center-pittsburg-california/) — powergen.wordpress.com · public_source — Source retained for exact-record publication review.

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Canonical page: https://askthegrid.com/assets/facilities/los-medanos-energy-center
Website: [Los Medanos Energy Center LLC](https://www.calpine.com/)

Source: Ask the Grid — https://askthegrid.com/