That's one side of the equation. The other side that's being explored is to vary the demand side. Only use 90 GW when 90 GW is available, and run the aluminum smelters undercapacity when there isn't the solar power to run them at full capacity.
It's an interesting balancing equation that someone could make an interesting game out of.
It's an interesting balancing equation that someone could make an interesting game out of.