Power Plant Replacement Project
07-SPPE-01 (Application For Certification)
Project Status: Proceeding Terminated, October 8, 2008.
Committee that oversaw Original Licensing Proceeding:
Jeffrey Byron, Commissioner, Presiding Member
Arthur Rosenfeld, Commissioner, Associate Member
Hearing Officer: Raoul Renaud
- 6/22/2007 - Project SPPE filed with Energy Commission.
- 9/10/2008 - Company withdraws application.
- 9/18/2008 - Committee Order Terminating Proceeding.
- 10/8/2008 - Commission Order Terminating Proceeding.
GENERAL DESCRIPTION OF PROJECT
Chevron proposes to add an additional 60 megawatts (MW) net generation to its existing Refinery electrical generation located within Chevron's Richmond Refinery in the City of Richmond, Contra Costa County, California, at 841 Chevron Way. The approximately 2,900-acre Refinery occupies most of the Point San Pablo Peninsula with east and south boundaries near the residential communities of North Richmond and Point Richmond, respectively. The proposed Power Plant Replacement Project (PPRP) will be integrated into Chevron's plans to meet its growing Refinery electrical load, and produce steam to replace an existing boiler plant.
The PPRP will consist of (1) the cogeneration train (Cogen 3000) located within the existing Refinery cogeneration facility, (2) a nominal 17 MW (net) steam turbine generator (H2-STG) located in a new hydrogen production facility, (3) reconductoring to upgrade ampacity of approximately 4,000 ft of existing on-site double-circuit overhead 115-kV transmission line, located between the cogen facility substation and the Refinery's main switchyard, and (4) shutdown of the existing Refinery steam boilers located at the existing power plant which currently provides steam to the Refinery.
Cogen 3000 will be a nominal 43-megawatt (MW) net power output GE Frame 6B combustion turbine generator (CTG), which will have an inlet evaporative cooling system to maximize power output from the machine. The CTG exhaust will discharge through a heat recovery steam generator (HRSG) that will be equipped with refinery fuel gas-fired duct burners to provide steam production. The Cogen 3000 will be located on an existing previously developed site within the existing 5.2-acre cogeneration area of the Richmond Refinery. In addition to Cogen 3000, the H2-STG will be a nominal 17 MW maximum net output. The H2-STG will tie-in to the refinery electrical system via a 2,000-foot-long onsite interconnection that will connect through the refinery distribution system to the SOSS. The H2-STG will be installed as part of and be located in a new hydrogen production plant being installed by third-party owner, Praxair. The hydrogen plant is also situated within the existing Refinery.
Cogen 3000 will connect to the electrical transmission system via existing dual-circuit 115-kilovolt (kV) lines that loop from the existing cogen switchyard (Sub 5) to the refinery main substation, called the Standard Oil Switching Station (SOSS), which is the point of common coupling with the Pacific Gas and Electric (PG&E) existing 115-kV El Sobrante transmission lines.
The Refinery proposes to burn natural gas, medium-Btu gas, or LPG (butane and propane) in the CTG, and refinery fuel gas (RFG) in the HRSG duct burner. Natural gas and medium-Btu gas for the facility will be delivered via existing pipelines.
For cooling tower makeup, the H2-STG will use up to 485 acre feet per year (afy) of recycled water provided by the East Bay Municipal Utility District (EBMUD). Cooling water will be cycled in the H2-STG cooling tower approximately 3.5 times. The blowdown will be sent to the refinery wastewater treatment system.
The recycled water will be delivered to the H2-STG cooling tower from an existing recycled water pipeline. Additional in-plant water distribution piping will be added to route the recycled water to the new cooling tower. For Cogen 3000 cycle makeup, evaporative cooling makeup, and other uses, Cogen 3000 will use approximately 863 afy of refinery-treated (RO plant) water. The refinery-treated water is supplied from EBMUD. This is the same water supply currently serving the existing steam boilers.
Potable water for drinking, safety showers, fire protection, and service water uses will be served from the existing EBMUD potable water system that currently serves the refinery. No additional sanitary wastewater disposal will be required for the PPRP.
Energy Commission Facility Certification Process
The California Energy Commission is the lead agency (for licensing thermal power plants 50 megawatts and larger) under the California Environmental Quality Act (CEQA) and has a certified regulatory program under CEQA. Under its certified program, the Energy Commission is exempt from having to prepare an environmental impact report. Its certified program, however, does require environmental analysis of the project, including an analysis of alternatives and mitigation measures to minimize any significant adverse effect the project may have on the environment.
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