Application "The electricity bill" helps determine and check the electricity consumed in Serbia for consumption category: "Consumer" or households and other consumers to 0.4kV There are two rates of consumption: High tariff (VT) and lower tariff (NT) The tariff system, there are three zones of consumption: Green, Blue and Red. The application automatically determines the share of higher and lower tariffs in the total monthly consumption. Then determines the allocation of kilowatt-hours consum