Potential air pollution from construction of the proposed 940 MW Huntington Beach project is significant, but does not rise to the level of halting the project, according to a California Energy Commission staff assessment released March 11. \u201cStaff recommends that the applicant continue to refine the modeling, consider staggering construction activities to reduce concurrent emissions and implement additional mitigation measures to reduce construction emissions and potential impacts,\u201d the assessment reads in part. It is part of the second volume of a preliminary staff assessment of the Huntington Beach Project, a proposed the natural-gas fired, combined-cycle, air-cooled electrical generating facility that would replace the current AES Huntington Beach Generating Station. It is to supply the western Los Angeles Basin. The first volume of the staff assessment, which covered more than a dozen other areas, including facility design, land use, reliability, waste management and efficiency, was released in October 2013. Commission staff determined that the project would offer numerous benefits to the public, including playing a critical role in replacing generation lost for Southern California with the closure of the San Onofre Nuclear Generating Station, as well as supporting local electricity reliability and grid stability. The first volume, which declared that the project\u2019s impacts would be less than significant with mitigation measures, also touted eliminating the daily need for millions of gallons of ocean water and other resources associated with once-through cooling among the proposed project\u2019s benefits. If approved by the Energy Commission, the Huntington Beach project would be built on the 28.6 acre plot of private land where the existing power plant sits. Applicant AES Southland applied for CEC certification in June 2012. The project consists of two power blocks, each composed of three natural gas combustion turbine generators with supplemental fired heat recovery steam generators, a steam turbine generator, and air-cooled condenser. Each power block could generate between 110 MW to 470 MW and would be designed to start and stop very quickly. The existing facility, which uses once-through cooling technology, would eventually be demolished and removed. If the Commission approves the $525 million project, demolition and construction work is scheduled to take place between the first quarter of 2015 and the third quarter of 2022. The two-part preliminary staff assessment serves as a precursor to a final staff assessment that\u2019s expected to be released later this year, after allowing for a public comment period on the preliminary assessment. After that, evidentiary hearings are to be held by the Energy Commission committee assigned to the case, followed by a final decision by the full commission either later this year or in 2015.