My washing machine or dish washer is programmable at the moment. They often wash in the night. I don't mind when they are washing given them a target finishing

My washing machine or dish washer is programmable at the moment. They often wash in the night. I don't mind when they are washing given them a target finishing time. My 2 thermal heat pumps for hot water and heating could easily take the price into their on/off calculations without any nuisance. They just store the heat energy in the house / water bowl when electric is cheap. If I am going to buy an electric car or a plug hybrid, I don't mind when it is charging, I just want that the batteries are full at 7 am. There is a lot of room for intelligence in our energy consumption. Owning my own battery buffer could also become profitable. The volatile wholesale price is there at the moment, what is missing is a volatile consumer price and an XML / JSON whatever webservice with the current price information and some WIFI chips and logic in my hardware. Not a big deal actually.