With rooftop solar there's a path towards mass deployment that other alternative electricity generation solutions currently lack. Rooftop solar for residential houses doesn't require permits or planning, and can be done by individuals within a reasonable budget, unlike solar farms or rooftop nuclear.
> Rooftop solar for residential houses doesn't require permits or planning
Either you're assuming residential battery storage systems replacing the grid, or your ignoring the connecting rooftop solar to the grid requires permits and planning (the grid may not be able to handle it).