The washing machine starts running when the most power is available. The blinds go up automatically when you get up in the morning and back down again in the evening. You can centrally switch off all unnecessary power consumers when you leave the house.
This and much more is possible with intelligent building management systems. All electrical connections and devices in the building can be switched and monitored via an internal bus system. Some systems are also interconnected. Heating, ventilation, alarm system, intercom, garden irrigation, automatic lighting and weather station can communicate on a single network and react independently to changing environmental conditions.