There are different capture systems:
On the one hand, the vertical system with geothermal probe, which can reach up to 150 meters deep and in which a mortar is used, a mixture prepared for the filling of this geothermal drilling.
They consist of two or four tubes, usually made of polyethylene, joined at their lower ends by a U-piece of the same material, thus constructing simple or double geothermal probes. These probes are installed inside the vertical soundings, whose depth usually ranges between 100 and 150 meters and around 150 millimeters in diameter.
In the case of horizontal probes, solar energy is captured directly. To this end, a series of ditches are made, in which polyethylene pipes of between 20 and 40 millimeters in diameter are placed, through which water flows with antifreeze. These collectors are buried at a depth of one or one and a half meters.