But that's not a problem with rooftop solar mandates, that's a problem with California's absolute refusal to fix their stupid and terrible electricity market. Electricity doesn't cost 30 cents per kilowatt hour in California because it's inherently harder to generate or sell electricity there, after all, how many solar panels and whatever other infra you want could you build just across the boarder in Nevada and sell back into California undercutting PG&E prices?
I don't have eyes into the specifics, but it's just always seemed like California state politicians have a vested interest in keeping money, both state and consumer, flowing into PG&E.