Inauguration of the world’s first CO2 thermal network


Event details

Date 07.12.2022
Hour 15:0018:00
Category Conferences - Seminars
Event Language French, English

Come discover the most dense and efficient district heating and cooling network powered by renewable resources, waste heat and CO2. An open-door event hosted by HES-SO, ExerGo, ZeroC, Oiken, and EPFL, held on December 7, 2022, at the Energypolis in Sion, Switzerland. 
What if we can heat and cool our future cities with CO2? Turning this idea a reality, the HES-SO Valais/Wallis, the EPFL, ExerGo, Zero-C and OIKEN have built the world's first thermal network using CO2 in Sion. The project is supported by the Swiss Federal Office of Energy (Pilot and Demonstration Programme).
Using CO2 instead of water as a working fluid, the network is up to nine times denser and more efficient and can save up to 80% in primary energy compared to fossil fuel-based systems. Harnessing renewable resources and waste heat, the network is unlocking synergies between the environment, users, and suppliers in a smart, circular thermal grid.  
This is a FREE event open for everyone – partners, investors, utilities, real estate companies, students, the public, and many more.  


Practical information

  • General public
  • Registration required


  • HES-SO, Sion