Geothermal energy is that energy in the form of heat located under the surface of the earth. Through the different capture systems, the heat exchange with the ground is carried out. Very low temperature geothermal energy is constantly regenerated by the sun, rain and the internal heat of the earth. Geothermal energy is one of the most efficient renewable energies, usable anywhere on the planet, 24 hours a day, 365 days a year. The geothermal heat pump takes advantage of the constant temperature of the subsoil throughout the year. For example, the one that contains the land that surrounds the houses or the groundwater, absorbing or transferring heat to the land through the different geothermal capture systems. This allows you to heat your home in winter, cool it in summer and produce domestic hot water very efficiently. The use of this energy has been carried out for more than 40 years in countries such as Germany, Austria, Switzerland, Sweden, France, USA, so its use is very reliable as it is a mature technology.