Geothermics
Efficient energy storage facilitates the integration of renewable energy sources into energy systems. Because of temporal variability in the availability of solar and industrial process heat, thermal storage systems are key components for the effective utilisation of this heat in solar thermal power stations, heat recovery processes, solar local heat projects, air-conditioning systems in buildings, and service water systems.
With large seasonal heat storage facilities, around half of the total heat requirements of large building complexes in Germany can be covered by solar energy.