Project Status: Licensed; In Compliance Phase.
Operational: October 20, 2016

The California Energy Commission approved this project's Application For Certification on September 12, 2012. The Commission monitors the power plant's construction, operation and eventual decommissioning through a compliance proceeding.

Key Dates

General Description of Project

The Pio Pico Energy Center (PPEC) is located at 7363 Calzada de la Fuente, San Diego, CA 92154, and is situated on a 10 acre parcel next to the Otay Mesa Energy Center. PPEC is a simple-cycle power generation project that consists of three General Electric LMS100 natural gas-fired combustion turbine generators (CTG). The total net generating capacity is 300 megawatts, with each CTG capable of generating 100 megawatts.

Otay Water District provides potable water directly to the project site through Otay Water District water lines immediately adjacent to the site. Upon the District’s commissioning of the proposed Otay Mesa area recycled water system, the project will make a connection to a recycled water main. Once the project’s process water needs are supplied using recycled water, PPEC’s permanent potable water needs will consist of drinking water, showers, sinks, toilets, eye wash stations, safety showers, and primary fire protection water. The water balance is based on recycled water quality parameters, which presents a worst case scenario, based on volume.

The plant uses a partial dry-cooling system (PDCS) in a closed-loop configuration. This allows the plant water consumption to be dramatically decreased in two ways. First, the dry-cooling section reduces the total amount of water evaporated during the cooling process. Second, the closed-loop cooling allows the contaminants in the evaporative water to be concentrated to a much greater extent than in a traditional open-loop cooling system because that water does not pass through the combustion turbine equipment.

Compared to a typical open-loop system with no dry cooling, the PDCS described above decreases the annual plant water consumption by approximately 53 percent and the wastewater production rate by 59 percent.

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:

Public Advisor
California Energy Commission
1516 Ninth Street, MS-12 Sacramento, CA 95814
Phone: 916-654-4489
Toll-Free in California: 1-800-822-6228

News Media Please Contact:

Media & Public Communications Office
Phone: 916-654-4989

Original Proceeding

Pio Pico List Serve

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