The Unit 5 at the power plant has a power generation capacity of 485MW. The report communicated that the output of Unit 6 at the power plant, rated 495MW, was decreased for unplanned work on September 3, 2009, by around 135MW.

The Alamitos plant is situated in Long Beach in Los Angeles County, approximately 25 miles south of Los Angeles. The plant’s total power generation capacity is 1,997MW.

The Alamitos plant comprises six units which include Units 1 and 2 with a generation capacity of 175MW each, Unit 3 with 332MW capacity, Unit 4 with 335MW capacity, Unit 5 with 485MW capacity and Unit 6 with 495MW of power generation capacity. Unit 1, 2,3,4,5 and 6 began operations in 1956, 1957, 1961, 1962, 1964 and 1966 respectively.