The operation of smart-home appliances can be made as reasonable as possible, virtually eliminating useless energy consumption – thereby significantly reducing utility costs. Savings are achieved due to the more coordinated work of various engineering systems (primarily heating and ventilation). The European experience suggests that if a smart-home uses lighting control and climate control, this can save up to 30% on heat and electricity! At the same time, you can use various lighting and ventilation options much more actively than before, without thinking about energy saving. Smart-Home will take care of it by turning off unused devices or transferring them in sleep mode.