13th Swiss Symposium Thermal Energy Storage, 30th January 2026

10th Swiss Symposium Thermal Energy Storage 2023 - How far have we come? What is still to be done?

The Swiss Symposium Thermal Energy Storage celebrated its 10th anniversary. We took this opportunity to reflect on the past decade, review what we have achieved so far and make joint decisions on what we will focus on in the next decisive years. The festival format of our symposium had a highly interactive and networking character with lectures, workshops and an exhibition. Key industrial and academic players in the field of thermal energy storage have come together. It was a great opportunity to identify key topics and start new collaborations.

13th Swiss Symposium Thermal Energy Storage, 30th January 2026
Keller als saisonaler Wärmespeicher

Bulletin.ch: Seasonal thermal energy storage - key component for decarbonisation

In this article we summarise the most important points discussed at the 10th Swiss Symposium Thermal Energy Storage on the topic of seasonal thermal energy storage.

Startschuss für die ersten saisonalen Wärmespeicher in der Schweiz

Keynote Session

SSTES Session 1

Sensible Thermal Energy Storage

Session Chair: Willy Villasmil

  • Pathways to an efficient future energy system
    André Bardow, Swiss Federal Institute of Technology Zurich (ETH), CH
  • PCM-Storage: Enabling the Efficient and Flexible Supply of Process Heat from Renewable Energies
    Andrea Gutierrez, German Aerospace Centre (DLR), DE

Political Session

Session 2 – Latent and Thermochemical Thermal Energy Storage

Latent and Thermochemical Thermal Energy Storage

Session Chair: Anastasia Stamatiou

  • The Social Acceptance of STES – Insights from the SOTES Project
    Isabelle Stadelmann-Steffen, Bern University, CH
  • The Role of Thermal Storage for Net Zero Energy Systems: Research Trends and Markets Outlook
    Antonio Marco Pantaleo, European Energy Council, IT

Research Session

Session 3

Thermal Storages in the Energy System

Session Chair: Philipp Schütz

  • The Contribution of Heat Storage for Carbon-Free Alpine District Heating Systems
    Gerhard Totschnig, Austrian Institute of Technology (AIT), AT
  • The Role of Thermal Energy Storage within Net-Zero Scenarios for Switzerland
    Gianfranco Guidati, Swiss Federal Institute of Technology Zurich (ETH), CH
  • Cool-Data – PCM Cold Storage for Server Room Cooling
    Gerald Englmair, Technical University of Denmark (DTU), DK

Workshop

Workshop

Pathways to Seasonal Thermal Energy Storage

Workshop Lead: Jörg Worlitschek Record contains only the Synthesize part

Exhibition

Gallery of the 11th Swiss Symposium Thermal Energy Storage

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All images of the Symposium can be found in Flickr-Album.

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