Earlier quoted context omitted.
I agree that a a more general law would be better, but for the foreseeable future I don't see this law having detrimental side effects. Also this law can be addressed in the future when solar is a less compelling technology.
It sounds horrible to me for a number of reasons: * Increases the cost of homes * Gives solar power industry a boost in a way that's hard to get rid of--they will lobby to keep this even if other industries are around and it'll probably never change * No incentive to research new energy technology in the meantime
And decreases the energy bill by a very similar amount of what an increase in the mortgage would be if the cost was 100% passed on. Regardless, in much of California the price of homes has little to do with the cost of building them. So another possibility is buildable land gets a little cheaper because building is more expensive and homes are priced by what the market will bear, not by material cost.