I agree! When we do get close to all solar, wind, and battery storage; it may come close to that with deciding what you want to use when energy is super cheap (maybe 10:00 - 14:00) and what you want to do when it is much more expensive (maybe 17:00 - 5:00). IoT and programmable appliances will make it pretty easy to schedule the dishwasher, clothes dryer, etc. The demand-response company, OhmConnect, that I think I've posted on, already has the ability to automatically adjust (for users who have opted in) smart thermostats and other devices (like car chargers) when demand is high.