Mariposa Energy Project

Byron, CA


The Mariposa Energy Project is a 200-megawatt (MW), natural gas, simple-cycle electric peaking generating station. Located in Alameda County in the Bay Area local capacity resource area, it supports renewable wind and solar power sources in the area. The Project is also currently developing a Battery Energy Storage System (BESS) on the site.

Mariposa helps to ensure a reliable supply of energy as California increases reliance upon renewable resources by providing on-demand standby power capacity for grid stability. With its quick startup time, it can be dispatched incrementally with just a minimum output of 25 MW. Mariposa utilizes a drycooling system and is a zero liquid discharge site, ensuring that plant has minimal impacts on water resources in the area.

DGC Management, LLC is the Asset Manager providing asset management services; and DGC Operations, LLC serves as the Operator providing O&M services for Mariposa. The facility is powered by four General Electric (GE) LM6000 PC Sprint combustion turbines generators, which employ Best Available Control Technology to limit emissions and noise.

Mariposa Energy Project

Byron, CA


4887 Bruns Road
Byron, CA 94514


Natural Gas, Simple-Cycle Peaker

Nominal Capacity:

200 MW

Commercial Operation Date:


DGC Role:

Ownership / Asset Management / O&M / Development

DGC Ownership:


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