Heat from a depth of 2000 meters planned
The Federal Office for Buildings and Logistics is planning an exploratory borehole for a geothermal site at the National Sports Center in Magglingen. The borehole is due to be drilled at the end of 2027. The aim is to gain insights into deep water resources for geothermal heat generation.
The Federal Office for Buildings and Logistics (BBL) has announced an exploratory borehole for a planned geothermal project in Magglingen. Provided the necessary credit approval from the Federal Assembly and drilling permits from the cantonal authorities are obtained, deep water should be detected at a depth of around 1,500 to 2,300 meters.
According to a press release, “several potential deep water reservoirs” are suspected there, which are to be used for a geothermal plant at the Magglingen National Sports Center of the Federal Office of Sport (FOSPO). The plant could supply heat there from 2029.
This was preceded by underground investigations in 2023 by the FOBL. These were intended to help obtain a “geological image of the subsoil that is as precise as possible”. The exploration step that has now been announced is intended to further clarify whether the deep water is suitable for the economic use of a geothermal plant in the event of positive evidence.
Seismic investigations are the basis of many geothermal projects to clarify the exact location of the deep water and because key figures such as water temperature, water volume and flow rate are lacking. The planned exploratory drilling reduces uncertainties and project risks.