The BedrettoLab (Bedretto Underground Laboratory for Geosciences and Geoenergies) is a unique research infrastructure run by ETH Zurich making it possible to take a close look at the Earth’s interior. It is located in the Swiss Alps 1.5 kilometres below the surface and in the middle of a 5.2 kilometres long tunnel connecting the Ticino with the Furka railway tunnel.
Equipped with the latest technology, the BedrettoLab offers ideal conditions to conduct experimental research focusing on the behaviour of the deep underground when accessing and stimulating it. Such an access is required to advance scientific knowledge in various domains including geothermal energy and earthquake physics. It is also of relevance to develop novel techniques and sensors for these purposes.
2026-02-11
A new cycle of hot-water injection began last week at BedrettoLab as part of the BEACH project. During this phase, water is heated to 80°C and injected into the reservoir between 09:00 and 17:00 every day for three weeks in total. The operation follows a three-week cyclic injection scheme designed to test the efficiency of the system.
Results from previous injections showed that the reservoir is capable of storing heat over the long term. At the same time, some energy losses were observed due to lack of insulation at the injection interval. Addressing and reducing these losses is in preparation and will be implemented in the next injection cycle.
2025-12-19
This week marked the successful conclusion of the second hot water injection of the BEACH project, bringing a productive and successful year for the BedrettoLab team to a close.
For now, BedrettoLab enters a brief two-week hibernation, recharging before the next ambitious phase begins. When it reopens in January, the team will turn its full focus to preparing the next large-scale experiment, a key component of the FEAR project.
Click on play and get a deep insight into the BedrettoLab.
In cooperation with the Museum Sasso San Gottardo, ETH Zurich offers public tours of the BedrettoLab.
The first two tour dates are:
Tickets can be purchased at this link: https://www.sasso-sangottardo.ch/bedrettolab