The BIGGEST problem with clean energy

Another option might be to have pricing adapted dynamically? Half the power outlets in your home have an LED. LED off, default price, green half price, flashing green quarter price, red double price, flashing red quadruple price. A guarantee of no changes more frequent than once per hour, and at least 4 hours of half price per day. Consumer goods could be adaptive, so your EV would only charge when power is cheap, pool pumps can rearrange their schedule, and washing machines and dishwashers could wait for an opportune time. Industrial uses such as desalination and electrolysis for hydrogen could take advantage of cheap power. 

This could significantly reduce not only the need for storage, but also reduce peak demand, hence infrastructure requirements. 

IMHO something like this has to be a significant part of future solutions.