Batteries are good. But we must definitely find a way to do load shifting of high energy demand industries and processes to peak of solar. Wonder what can be shifted to 4 hour window without impacting the overall economics ?

There is a good chance solar per Kwh may reach 1-2 US cents LCOE by 2030. Off course this does not include storage, transmission. But this is an order of magnitude difference from many energy sources only a decade back.