3. Emission-free geothermal heat and geothermal cooling
In YIT’s new self-developed business premises, geothermal heat is always chosen as the heating system whenever possible. In the summer, the system is used for cooling, and in the winter for heating. When the geothermal heating and cooling system is used with electricity produced from renewable natural resources, heating and cooling are practically emission-free. In addition, the system’s good coefficient of performance (COP) means that the energy costs of heating and cooling are almost always cheaper than those of district heating/cooling. The system also heats domestic water in an emission-free and affordable manner.