petition with the California Energy Commission requesting to modify the Midway Sunset Cogeneration Project. The 225-megawatt project was certified by the Energy Commission on May 14, 1987, and began commercial operation on May 1, 1989. The facility is located in Fellows in Kern County, California and uses cogeneration steam to aid in the enhanced oil recovery process. Air Quality technical staff reviewed the petition to amend and requested additional revisions for consistency with the San Joaquin Valley Air Pollution Control District (SJVAPCD) Authority to Construct (ATC) permit. A modification of the petition to amend was submitted and posted online and docketed on November 19, 2010. The proposed amendment requests administrative modifications to Units A, B and C and revision of unit B’s DLN9 Combustion System to a DLN1+ Combustion System. Energy Commission staff reviewed the petition and assessed the impacts of this proposal on environmental quality, public health and safety, and proposes the modifications to the Air Quality Conditions of Certification as noted in the attached analysis. It is staff’s opinion that, with the implementation of the revised air quality condition, the project will remain in compliance with applicable laws, ordinances, regulations, and standards and that the proposed modifications will not result in a significant adverse direct or cumulative impact to the environment (Title 20, California Code of Regulations, Section 1769). The amendment petition and staff’s analysis have been posted on the Energy Commission’s webpage at
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