Daldrup & Söhne signs contract for geothermal drilling in Geiselbullach, Germany
GfA waste-to-energy plant in Geiselbullach, Bavaria, Germany (source: GfA)
Carlo Cariaga
25 Aug 2025
Daldrup & Söhne has been awarded the contract to drill a geothermal doublet in Geiselbullach, Germany to transition local district heating from waste incineration.
Local drilling company Daldrup & Söhne Aktiengesellschaft (Daldrup & Söhne) has been awarded the drilling contract for a doublet to be drilled as part of the planned geothermal project in the town of Geiselbullach in the municipality of Olching in Bavaria, Germany. Construction of the drilling site is set to begin in September, with drilling work scheduled between December and May 2026.
The contract awarded to Daldrup & Söhne has a value of about EUR 16.8 million.
The project aims to tap into geothermal resources to provide an alternative source for the existing district heating network, which is currently supplied by a waste-to-energy plant. The geothermal project will be headed by Amperland Thermalwärme GmbH (ATW), a subsidiary of Joint Municipal Company for Waste Management (Gemeinsames Unternehmen für Abfallwirtschaft / GfA), the company that currently operates the waste-to-energy plant. The company has secured a grant of EUR 8.8 million from the Federal Government’s Efficient Heating Networks (BEW) program to support the project.
With this development, the project seems to be on schedule according to the target start of drilling declared earlier this year.
Under the contract, Daldrup will drill two deflected deep geothermal wells with lengths of roughly 2,430 meters and 3,300 meters at the Geiselbullach cogeneration plant site. Water temperature at this depth is expected to be about 73 °C. If the drilling and well testing results are positive, the company will then apply for a water law permit. The geothermal heating plant can then be operational by early 2027.
Source: RTTNews via NASDAQ
