Geothermal heat probes

The production of near-surface geothermal energy is carried out, among other things, via geothermal probes. A geothermal probe is a borehole with an average depth of 40 to 150 m, into which usually four plastic pipes connected in pairs at the lower end are inserted. The remaining cavity between the plastic pipes and the rock is compressed with a concrete-clay mixture from bottom to top. A heat transfer medium (water-glycol mixture) circulates in the plastic pipes, which absorbs the heat from the substrate and transports it to the heat pump in the building. The geothermal probe drillings recorded in the Bavarian Soil Information System are shown. In addition to selected master data, the short and detailed information on the geothermal probes lists, among other things, information on groundwater, the depth of the rock layers, rock approach according to DIN 4023 and stratigraphy. These data can be ordered at the data office of the Bavarian State Office for the Environment (Bayerische Landesamt für Umwelt) after examination of the data protection regulations (in accordance with the Environmental Fee Regulations).