Maybe change the 'Net metering' rules to buy the solar power from customers at a lower price, and let the supply-demand work itself out.
It won't be that simple, since even this (allowing customers to contribute power back to the grid at scale) requires expensive infrastructure upgrades.
I'd argue that one implication of a smarter grid would be that there'd have to batteries all over the place, exactly because batteries can adapt quickly and 'smartly' (with a .05$ microchip) to energy supply and demand.
Whereas there is a limit to the maximum intelligence of refrigerators, airconditioning devices, heat pumps, and washing machines.
It won't be that simple, since even this (allowing customers to contribute power back to the grid at scale) requires expensive infrastructure upgrades.