Hanford Combined-Cycle Power Plant Amendment Proceeding
(Hanford Energy Peaker Project Amendment)

Docket Number:

01-EP-07C (Amendment Proceeding)

Project Status: Amendment Approved; In Compliance Phase.

The California Energy Commission approved this project's Amendment on March 24, 2010. The Commission monitors the power plant's construction, operation and eventual decommissioning through a compliance proceeding.

Key Dates

• 10/1/2008 - GWF Energy LLC files Amendment Petition
• 10/14/2008 - Commission staff releases Staff Analysis.
• 3/24/2010 - Commission approved major amendment.

DESCRIPTION OF PROPOSED MODIFICATION

The modification proposed in the petition would involve converting the existing HEPP from a nominal 95-megawatt (MW) simple-cycle power plant into a combined-cycle power plant with a nominal 25 MW (net) of additional generating capacity. Though the plant would be renamed to the GWF Hanford Combined-Cycle Power Plant (GWF Hanford), it will retain the capability to operate in a simple-cycle configuration. New once-through steam generators (OTSGs) would be installed to allow the plant to be operated in its current simple-cycle configuration with no steam generation but with the selective catalytic reduction (SCR) and oxidation catalyst in operation, or to operate as a combined-cycle power plant generating an additional 25 MW (net) of power with new proposed emission limits.

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