Many homeowners have been told by power companies to shift their power usage to the evening to avoid grid overload... so things like residential AC and pool fil

Many homeowners have been told by power companies to shift their power usage to the evening to avoid grid overload... so things like residential AC and pool filters, etc are put onto timers which shift their load to the night. If max power availability is actually earlier due to solar installations, then they should shift their AC to cool during the hot part of the day - leaving the home cooler after they come home... I don't think that explains everything about the demand curve, but using the current day demand curve to say 'solar doesn't work' isn't looking deeply enough. I like the Arthur Clarke quote: When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong. - Arthur C. Clarke