Mercury News: After casting itself as a champion of solar power, Pacific Gas & Electric has angered green-energy advocates by opposing two state bills that would ramp up the benefits for those who go solar. Put simply, PG&E’s objection is that the two measures would make solar too popular. The utility says that would be unfair to its non-solar customers, who under existing law must subsidize rebates and credits paid to solar-power users. But some supporters of the bills say …