The Earth, at depths from 18 to 20 meters, maintains a uniform temperature, whether it's winter or summer. Obtain energy from the depth of the ground through heat pumps is commonly made, and that is also known as geothermal energy. But the biggest drawback from this technology lies in the high price of the drilling of wells in geothermal fields.
We have patented what we call Geothermal Stakes that are stuck in the ground (quickly, to a fraction of the cost and without specialized equipment and personnel, and that they may be driven in screes, walls and roofs of galleries, tunnels, etc.) to the depths required to obtain geothermal heat.