2025 UTES Symposium Zurich
Collaboration between IEA Geothermal, the Geothermal Implementation Working Group and the Geothermica Initiative delivered an international Underground Thermal Energy Storage (UTES) Symposium on the 6th October 2025 at the Kongresshaus Zürich.
The programme can be accessed through this URL Link.
The presentations from the event are available from this web page.
Mouse / hover over the presenters name to access the slides and use the URL Link to view the talk.
Introductions & Welcome
Paul Ramsak GEOTHERMICA Initiative
Gerdi Breembroek Geothermal IWG
Kasumi Yasukawa IEA Geothermal
Session 1 – UTES Policies & Strategies
Christian Minnig UTES Policy & Strategies in Switzerland
Robin Horsmans Overview of UTES Policies & Strategies in Europe
Matthieu Ballu EC Strategies & Policies Relevant for UTES
Panel Session – From UTES Strategies to Action
Moderated by Gerdi Breembroek, Chair Geothermal IWG
Luca Xodo, ETIP Geothermal
Sanjeev Kumar, EGEC
Thomas Jahrfeld, SWM
Robin Horsmans, RVO
Christian Minnig, SFOE
Session 2 – UTES Projects & Business Cases
Rolf Gisler ATES Zurich Airport
Martin Bloemendal, Developing and demonstrating HT-Aquifer Thermal Energy Storage in Delft. Listen to Martin’s presentation (URL Link)
Rusbeh Rezania, Role and pathway for integrating thermal energy storage (TES) in Vienna
Eivind Bastesen, HEAT™ technology – fracture thermal energy storage (FTES) in Tromsø
Rami Niemi, QHeat Borehole Thermal Energy Storage Concept
Panel Session – Why is Storage Key?
Moderated by Paul Ramsak, Chair GEOTHERMICA Initiative
Martin Bloemendal, TU Delft
Rusbeh Rezania, Wien Energy
Eivind Bastesen, Ruden Energy
Rolf Gisler, Zurich Airport
Rami Niemi, Qheat
