In central Europe, the majority of the CO2 emissions in the energy sector are related to the
provision of building and process heat. Due to seasonal fluctuations in demand, especially
to provide heat for residential and industrial buildings, local storage of excess heat in
summer for utilization in winter is becoming increasingly important. With the current state of
technology and foreseeable developments, sufficient amounts of heat can only be stored
underground, taking advantage of the large available storage volumes. In contrast to typical …