Energetically effective technologies of the house guarantee: — great savings for the time of use, and considerable cost when buying, installation. But it is worth noting that if the issue becomes about the sale of an energy -independent house, then the price of such a house increases significantly compared to ordinary houses. It is worth thinking about the choice of high -quality thermal insulation, the location of solar panels, the correct layout of the location of windows and residential premises, the correct calculation of the energy consumption.