San Diego Gas and Electric, a subsidiary of Sempra Energy, is one of California’s three big shareholder-owned utilities, along with Pacific Gas and Electric and Southern California Edison. Together they serve about 70 percent of California’s electricity customers and have been raising concerns about the impact of government-run utility programs on their businesses.
An additional bill was passed in 1999 that helped further establish a competitive electricity market by creating a price floor to prevent established energy providers from underselling emerging providers. In 2002, Texas finalized deregulation when the Public Utility Commission gave ERCOT the responsibility of managing and monitoring the Texas electricity market. The market opened up to around 6 million Texas power customers.