Shallow Geothermal Energy
Shallow geothermal energy is based on the same fundamental principle as solar thermal energy. However, in this case it is the ground which is acting as a heat source, not the sun. There is an underground pipe system in which a liquid heat transfer medium circulates.
Geothermal probe with heat pipe principle
Transparent components allow observing how the state of the heat transfer medium changes.
Geothermal energy with two-well system
Use of geothermal energy in an open system without thermal repercussion.
Underfloor heating / geothermal energy absorber
Can be used as heat sink or heat source.