In each object there is a local heat exchange station with local controls, and the offices are equipped with integrated room controllers, more than 70 in total. It is possible to cool the buildings by cold water from the wells in summer, the system has active dewpoint control. Sunblind control system is also integrated together with window contacts provided by the security system. The produced and consumed energy is measured by communicative meters. The process stations in the objects communicate with the management station over local Ethernet network.