Dow Jones: Amid concerns about meeting growing power demand and fighting climate change, California regulators and utilities are working to cut electricity use in amounts that would power millions of homes. Under state law, the state’s three largest electric utilities are mandated to try to reach a goal of saving 23,183 gigawatt-hours per year of electricity from 2004 to 2013, or enough electricity to power about 2.3 million homes. A draft plan issued earlier this month by the California …