Licensed; In Compliance Phase.
Operational: October 3, 2009
The California Energy Commission approved this project's Application For Certification on April 18, 2001. The Commission monitors the power plant's construction, operation and eventual decommissioning through a compliance proceeding.
- October 14, 1998 -- Hearing on Petition for Jurisdictional Determination.
- 8/2/1999 - Application for Certification (AFC) filed
- 10/6/1999 - Commission accepts AFC as "data adequate."
- 5/10/2000 - Commission staff releases Preliminary Staff Assessment.
- 10/13/2000 - Commission staff releases Part 1 Final Staff Assessment.
- 10/27/2000 - Commission staff releases Part 2 Final Staff Assessment.
- 3/12/2001 - Committee releases Presiding Member's Proposed Decision.
- 4/18/2001 - Commission approves Application for Certification.
- 10/3/2009 - Power plant on line and producing power.
General Description of Project
Otay Mesa is located approximately 15 miles southeast of downtown San Diego and about 1.5 miles north of the United States/Mexico border. The plant itself is situated on a 15-acre parcel northeast of the intersection of Otay Mesa and Alta Roads. The plant includes two power islands, air-cooled condensers, a 230 kV switchyard, an administration building, storage tanks and ancillary facilities. Each power island consists of an F-class combustion turbine generator (CTG) nominally rated at 170 MW, a heat recovery steam generator (HRSG), a 160-foot tall HRSG exhaust stack, and a nominally rated 90 MW steam turbine generator (STG) for each power train. Total net output of each unit is approximately 255 MW with a combined nominal output of 510 MW.
At the present time, Otay Mesa uses potable water provided by the Otay Water District via a 0.2-mile pipeline to an existing water main in Alta Road.
The project uses dry cooling technology, while process water for steam generation and potable water for domestic needs will be supplied by the Otay Water District. Wastewater from the plant is transported to San Diego County's sewer system from the plant, via a 2-mile pipeline that connects to an existing line in Johnson Canyon.
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.
For Questions about this Certification Proceeding Contact:
Newly Approved, No Project Manager Assigned
For Questions About Public Participation In Certification Proceedings Contact:
California Energy Commission
1516 Ninth Street, MS-12 Sacramento, CA 95814
Toll-Free in California: 1-800-822-6228
News Media Please Contact:
Media & Public Communications Office
e-Commenting & e-Filing have been closed. Please use the Compliance Section above.
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