Alamitos Energy Center

Docket Number:

13-AFC-01 (Application For Certification)
13-AFC-01C (Compliance Proceeding)

Project Status: Licensed; In Compliance Phase

Key Dates


Artist Rendering of the Alamitos Power Plant

On December 27, 2013, AES Southland Development, LLC (AES-SD) submitted an Application for Certification (AFC) to modernize the existing Alamitos Generating Station (AGS). The original AFC proposed a natural gas-fired, fast starting, combined-cycle gas turbines, air-cooled electrical generating facility with a net generating capacity of 1,936 megawatt (MW), to replace, and be constructed on the AGS site. The Alamitos Energy Center (AEC) would be located on approximately 21 acres of the 71-acre brownfield AGS site. The proposed project site is bounded to the north by State Route 22; to the east by the San Gabriel River; to the south by 2nd Street; and to the west by N. Studebaker Rd., in the city of Long Beach, Los Angeles County, California.

On October 26, 2015, AES-SD submitted a Supplemental Application for Certification (SAFC) (13-AFC-01) to address significant revisions to the design for modernizing the existing AGS. The SAFC replaces the original AFC filed on December 27, 2013. The project description in the SAFC for the proposed AEC has changed from that in the AFC filed on December 27, 2013. The revised proposed AEC would include a nominal 640-megawatt (MW), natural gas-fired, combined-cycle power block and a 400-MW simple-cycle, air-cooled electrical generating facility. Power Block 1 would consist of two natural gas-fired combustion turbine generators (CTG) in a combined-cycle configuration with two unfired heat recovery steam generators (HRSG), one steam turbine generator (STG), an air cooled condenser, an auxiliary boiler, and related ancillary equipment. Power Block 2 would consist of four simple-cycle CTGs with fin-fan coolers and ancillary facilities. Demolition of retired Unit 7 and construction activities at the project site are anticipated to last 56 months, from first quarter 2017 until third quarter 2021.

Existing Alamitos Generating Station Units 1–6 are currently in operation with a net generating capacity of 1,950 megawatts (MW). Although AES still intends to demolish all six operating units, AES is no longer including the demolition as part of the proposed AEC project, but now plans to accomplish the demolition under a separate CEQA proceeding through a Memorandum of Understanding with the city of Long Beach.

Construction began in June 2017.

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:

Joe Douglas
Compliance Project Manager
Siting, Transmission and Environmental Protection (STEP) Division
California Energy Commission
1516 Ninth Street, MS-2000
Sacramento, CA 95814
Phone: 916-653-4677

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

Compliance Proceeding

Original Proceeding



Alamitos Energy Project
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