Docket Number
Simple Cycle
Project Status
Under Review
Project Type
Temporary Power Generators
Project Description

The Roseville State Power Augmentation Power Site (RSPAPS) would be an approximately 60-megawatt natural gas-fired simple cycle electric generating facility located adjacent to and on the east side of the existing Roseville Energy Park in the city of Roseville, Placer County. If licensed, the RSPAPS would be a temporary facility licensed pursuant to the Governor’s Emergency Proclamation issued on July 30, 2021.


RSPAPS would consist of two TM 2500 gas turbine package units. The package units would be skid mounted units which would arrive complete with air filters, fuel gas skid, control room, and generator. The package units are equipped with nitrogen oxide (NOx) water injection to control emissions from the units to 25 ppm at 15% oxygen. The units would be retrofitted with a Selective Catalytic Reduction (SCR) system and Catalytic Oxidation system as soon as practicable.


The units would be located on land that was previously disturbed during the construction of the Roseville Energy Park (REP) back in 2005-2007. The new TM2500 units would utilize natural gas and would connect to existing lines stubbed to the adjacent REP located to the west. The natural gas would be provided from the existing Pacific Gas and Electric (PG&E) natural gas system located at the site. Existing generator step-up units (GSU) would be used to step up the voltage to interconnect into Roseville’s existing 60 KV transmission lines which would provide power to the City of Roseville controlled-grid. Demineralized water for NOx control would also be provided from the adjacent REP site.

Power Plant Certification and Exemption Processes

As required by the Warren-Alquist Act, the Energy Commission monitors Commission-certified energy projects throughout construction, operation, and closure to ensure compliance with the conditions of certification imposed by the Commission’s Final Decision for approving the projects.

Original Proceeding

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Docket Log (21-TPG-01)

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