Well you’d just make the ice whenever it’s cheapest, taking into account the effects of cold air and of electricity prices. In the future it might make sense to

Well you’d just make the ice whenever it’s cheapest, taking into account the effects of cold air and of electricity prices. In the future it might make sense to make the ice when it’s warm out because power is nearly free at those times. But a smart building automation system could know when cloud cover is predicted and make ice the night before.