Calculations for the services of "stairs electricity" and "electric power lift" are performed according to Government Decision no.191 of 19 February 2002 and Government Decision no. 1339 of 15 October 2002. Monthly, housing fund managers present data on the amount of electricity consumed for each meter installed in the block. This volume is divided proportionally to the number of occupants who are resident in the apartments using these services and are connected to the counters. When calculating electricity consumption, the days when the lift was disconnected are also considered.