California's Assembly on Tuesday approved one of the most ambitious renewable energy programs in the nation. The bill requires the state's utilities to get 33 percent of their power from renewable resources like biomass, geothermal, solar and wind by 2020, up from the current target of 20 percent by 2010. Currently, the state's three investor-owned utilities -- Pacific Gas & Electric, Southern California Edison, and San Diego Gas & Electric -- get 18 percent of their electricity from wind farms, solar power plants, geothermal, and biomass facilities, according to a new report from the California Public Utilities Commission. But they...