Shallow geothermal
resources
Typical application of a borehole heat exchanger (BHE)/heat pump (HP) system in a Swiss home. Typical BHE length: 100 m. | Ground temperature profiles at a distance of 1 m from the BHE in Elgg. Curve December 1986 marks the undisturbed profile at the start of the first heating season. The subsequent curves show the conditions after winter heat extraction and summer recovery, just before the start of the next heating season. |