AES nearly through air permitting for Redondo Beach project

In a major step forward for the AES Redondo Beach LLC unit of AES Corp. (NYSE: AES), the company has won a preliminary approval from the South Coast Air Quality Management District (SCAQMD).

The district had received permit applications from AES Redondo Beach for the Redondo Beach Energy Project (RBEP), which will replace four existing older and less efficient large electric generating utility boilers with three new, more efficient gas turbines at the Redondo Beach Generating Station in Redondo Beach.

“After a careful review and a detailed evaluation of the RBEP, SCAQMD has determined that the proposed project complies with all applicable federal, state and local air quality rules and regulations,” said a June 13 notice from the district that was filed the same day with the California Energy Commission, which is also reviewing this project. “Therefore, SCAQMD intends to issue Permits to Construct for the RBEP and to revise the Title V permit for this facility upon California Energy Commission’s (CEC’s) completion of the application for certification process and approval of the license for the RBEP. In addition, prior to issuance of the final Title V permit, SCAQMD is providing an opportunity for public comments on the SCAQMD’s proposed decision.”

SCAQMD is the air pollution control agency for the four-county region including all of Orange County and non-desert parts of Los Angeles, Riverside and San Bernardino counties.

The proposed RBEP will replace the existing Units 5, 6, 7, and 8, which are older, less efficient units that have been in operation since the 1950s (Units 5 and 6) and 1960s (Units 7 and 8). The new generating system will consist of three natural gas-fired Mitsubishi 501DA combined cycle gas turbine generators configured as a 3-on-1 power block with a steam turbine generator. The combined generating capacity of the RBEP will be 546.4 MW. This capacity replaces the capacity of the existing Unit 7 (480 MW) and Units 6 and 8 (66.4 MW of 655 MW total).

The surplus 588.6 MW from the shutdown of Units 6 and 8 will be used to help offset the separate repowering projects at AES Huntington Beach and AES Alamitos. AES Huntington Beach and AES Alamito are subject to their own California Energy Commission proceedings, which are currently ongoing.

  • In June 2012, AES Southland LLC submitted an Application for Certification (AFC) to the California commission seeking permission to construct and operate the Huntington Beach Energy Project (HBEP). The project will be located entirely within the footprint of the existing Huntington Beach Generating Station. The HBEP is a natural-gas fired, combined-cycle, air-cooled, 939-MW facility that will replace the AES Huntington Beach station. HBEP will consist of two independently operating, three-on-one, combined-cycle gas turbine power blocks. Each power block will consist of three-gas-fired combustion turbine generators (CTG), three supplemental fired heat recovery steam generators (HRSG), one steam turbine generator (STG), an air-cooled condenser, and related ancillary equipment
  • In December 2013, AES Southland Development LLC submitted an AFC to modernize the existing Alamitos Generating Station (AGS). The new Alamitos Energy Center (AEC) is a natural-gas fired, fast starting, combined-cycle, air-cooled facility with a net generating capacity of 1,936 MW, which will replace and be constructed on the site of the AES Alamitos station. AEC will consist of four 3-on1 combined-cycle gas turbine power blocks, with twelve natural-gas-fired CTGs, twelve HRSGs, four STGs, four air-cooled condensers, and related ancillary equipment.
About Barry Cassell 20414 Articles
Barry Cassell is Chief Analyst for GenerationHub covering coal and emission controls issues, projects and policy. He has covered the coal and power generation industry for more than 24 years, beginning in November 2011 at GenerationHub and prior to that as editor of SNL Energy’s Coal Report. He was formerly with Coal Outlook for 15 years as the publication’s editor and contributing writer, and prior to that he was editor of Coal & Synfuels Technology and associate editor of The Energy Report. He has a bachelor’s degree from Central Michigan University.