Please explain how you just "make" loads run only when solar is present? A quick look at California's "Duck Curve" shows that isn't likely, and reinforces my original point. AC during the day is a major draw, but the second major draw is in the evenings when people get home from work and start doing things. Solar is okay during the summer when the sun is still out (albeit low on the horizon so many arrays have reduced output) but during the winter it's dark before you even get home.
Aluminum smelting, data processing, water treatment and pumping, mining... A lot of industries don't need a 100% duty cycle and would be hally to switch to scheduling if cost incentives are here (and some already do like aluminum smelting in some areas).
