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Geothermal drilling in Riehen, Switzer­land

2 geothermal bores at depths of 1547m and 1247m

To survey for and verify heat reserves to feed into the planned Riehen district heating system. Temperature at borehole bottom:
bore B1 71°C,
bore B2 55 °C.
Yield at a drawdown of approx. 80 m is 14 I/s for both bores.

Call for tenders for drilling operations, supervision of drilling and short-term pump tests, liaising with service companies, overall construction management.


Gruner Gruneko AG
St. Jakobs-Strasse 199
4020 Basel
T +41 61 367 95 95
F +41 61 367 95 85
Contact Person
Arthur P. Moser
T +41 61 367 94 89