The World Sustainable Energy Days (WSED) are just around the corner. Join the entire energy transition sector from 24-27 February 2026 in Wels/Austria! The WSED are a leading international conference and tradeshow on the energy transition and climate neutrality that attracts 600+ participants from over 60 countries each year.

Register online today!

2026: Energy transition = energy independence! This is the motto of the World Sustainable Energy Days 2026

Geopolitical instabilities, high energy prices and growing global competition make one thing clear: Europe must urgently increase its energy independence. Energy efficiency and renewable energy are the key assets in this transformation: They decrease energy imports, reduce energy prices and make Europe more resilient. The World Sustainable Energy Days 2026 present policies, technologies and business models which increase competitiveness and make energy more affordable. 

Conferences and events – check out the full conference programme!

• Energy Efficiency Policy Conference
• Industrial Energy Transition Conference
• European Pellet Conference
• Young Energy Researchers Conference
• Workshop Energy Communities
• Smart E-Mobility Conference
• Poster Presentation
• Leading tradeshow on energy and buildings

(Copyright: OOe Energiesparverband)

Event highlights:

• 6 leading international conferences
• 80+ top speakers on market trends, policies, technologies, and innovation
• 70,000+ visitors on a major sustainable energy tradeshow
• 30+ hours of networking
• Young Energy Researchers Conference
• Poster presentations

When & Where?

24 – 27 February 2026 | Wels, Upper Austria
The event is organised by OÖ Energiesparverband, the Energy Agency of Upper Austria. Upper Austria, one of Austria's nine regions, is a leader in the clean energy transition, making the region an ideal location for this conference. Through significant increases in energy efficiency and renewable energy, greenhouse gas emissions from buildings were reduced by 57 %. Over 72 % of all space heating and 37 % of the primary energy in Upper Austria already come from renewables.

Registration & Information

For more information visit the conference website www.wsed.at or contact the conference office (T: +43-732-7720-14386, office@esv.or.at). 

Photo: ©OOe Energiesparverband

As cooperation partner of the conference, REHVA encourages you to take part!