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Sempra Energy Trading, formerly AIG Trading Corp, said itopened a satellite trading floor in San Diego to take advantage ofCalifornia’s deregulated market for electricity. The company’s WestCoast operation will initially have 19 employees. They willinterface with power scheduling operations of California’sIndependent System Operator (ISO) and work with Sempra’s East Coastoperations. Sempra is based in Greenwich, CT.