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Cleaning Up California Power

Station upgrade eliminates ocean water for cooling, reduces emissions, supports renewables

Posted on February 11, 2014

The Los Angeles Department of Water and Power (LADWP) is upgrading the Scattergood Generating Station to cleaner, faster power generating technology from GE.

For the repowering project near El Segundo, California, U.S.A., LADWP said it will phase out the current 460 MW Unit 3 conventional steam boiler, in operation since 1974, and replace it with the combination of GE’s heavy-duty and aeroderivative gas turbines.

GE said its ecomagination-qualified combined-cycle power island with “Rapid Response” technology will feature a 216 MW 7F.05 gas turbine, a GE ST-A650 steam turbine operating in combined-cycle mode, and a heat recovery steam generator (HRSG).

GE also will supply two of its 104 MW intercooled LMS100 aeroderivative gas turbines. The power island will reduce carbon emissions by using less fuel and reacting faster to changing grid conditions; eliminate the use of ocean water for cooling, requiring minimal water use and providing over 500 MW of output using air-cooled condenser technology; start-up and ramp quickly to support the use of renewable energy; and fit into the site layout with a compact equipment footprint, GE said.

The monitoring and control of the new power generation equipment is unified under the company’s distributed control system (DCS), which is based on its Mark VIe control technology.

Commercial operation of the Scattergood station’s new power generating equipment is scheduled to begin by the end of 2015. GE’s equipment will be manufactured at its facilities in Greenville, South Carolina; Schenectady, New York; and Houston, Texas, U.S.A.