Here, in France, power suppliers sends each night clock commands.
Home automation is brilliant. You can create, regarding your habits, scenarios that handle common things for you. But the ecological approach about automation is, IMHO, the most important thing these devices and algorithms can bring to the game. Here, in France, power suppliers sends each night clock commands. Our houses are built to listen to these clock commands and to start electric boilers for about 8 hours at night no matter how much hot water we're going to use the next day.