Sempra Energy‘s two California utilities, Southern California Gas Co. (SoCalGas) and San Diego Gas and Electric Co. (SDG&E), were ranked highest for customer satisfaction among the largest U.S. investor-owned energy utilities (IOU) in the first quarter of this year, according to a recently completed survey by the American Customer Satisfaction Index (ACSI). The utilities announced their top ranking in the University of Michigan survey that measures customer satisfaction across 10 economic sectors, 44 industries and more than 200 companies, along with federal and local government agencies. SoCalGas and SDG&E scored the highest in residential customer satisfaction of the 29 largest IOUs. The ACSI survey used a uniform system to measure customer satisfaction, quality of service, value, reliability and the ability to restore power after outages.

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