The subsequent steps of a geothermal exploration project for the city of Burgdorf in Switzerland were discussed during a public information event held by project partners CKW AG and Localnet AG. Although it is still in its early planning stages, the project envisions the use of thermal waters hosted by the Muschelkalk formation at 2600 to 2800 meters depth for district heating or electricity generation.
Initial investigation of potential geothermal resources in Burgdorf was first announced in October 2025, starting with analysis of publicly available subsurface data and heat utilization potential. Localnet AG, the municipally owned energy supplier for Burgdorf, provides the network infrastructure for the project while energy company CKW AG contributes their technical expertise.
To update the local community about the project, an information event was held at the Gsteighof auditorium. With about 250 people in attendance, there was clearly strong interest in the project’s progress. Representatives from CKW and Localnet presented the project updates, while Stefan Berger, Mayor of Burgdorf, was on hand to express support.
The selection of Burgdorf as the site of the geothermal exploration project was due to a combination of geological, market, and political factors. There was a strong customer base for renewable energy in Burgdorf, owing to the existing and planned district heating networks of Localnet. The city has also set a target of 100% renewable heating by 2050 as part of its climate strategy. Lastly, Burgdorf has favorable geological conditions because of the existence of the potential water-bearing Muschelkalk layer at 2600 to 2800 meters depth.
The project partners also presented the successful case of geothermal power generation in Riehen, as well as the extensive and historical geothermal district heating schemes in Paris, France and Munich, Germany.
According to Philipp Lepert of CKW, they are currently processing the available geologic data. If the analyses yield positive results, the next phase could involve a seismic exploration campaign using vibro-trucks. Depending on the results of this phase, the project can then proceed to exploration drilling and testing.
Addressing questions from the audience, CKW clarified that they are covering the majority of the current costs. Should the project proceed to the succeeding phases, there will be negotiations between the project partners on a cost-sharing mechanism.
Source: CKW, Geothermie Schweiz, and D’Region
