Heatstorage

We have the opportunity to use the earth's natural heat capacity to store heat for the season. This applies to both options for storing solar heat from the bright day of summer to the need for heating in the winter as well as the energy of the wind-filled roofs to heat a cold evening.

By supplying the soil mass with energy in the form of heat when there is a surplus, eg from photovoltaic systems or surplus heat from production, it is possible to increase the value of renewable energy.