Another practically inexhaustible source of energy is geothermal which uses the energy emanating from the warm interior of the earth. It is exploited using a geothermal heat pump and a geothermal exchanger (a piping circuit located on the ground that diffuses or concentrates heat). Depending on the surface, the piping network is laid horizontally or vertically.
With low installation costs and easy licensing procedures, geothermal is a sure choice for energy savings of up to 80% for heating in winter as well as for greater coolness during hot summer days.