World Sustainable Energy Days 2026
2026-02-24 - 2026-02-27
What are the World Sustainable Energy Days (WSED)?

Energy transition = energy independence
Geopolitical instabilities, high energy prices and growing global competition make one thing clear: Europe must urgently increase its energy independence. Energy efciency 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 (WSED) present policies, technologies and business models which increase competitiveness and make energy more affordable. The event is a leading annual conference on the energy transition and climate neutrality with over 650 participants from more than 60 countries.

When does it take place?
24 – 27 February 2026

How to join?
Mark your calender, register today and join us in Wels at the World Sustainable Energy Days!

Contact
Conference office
OÖ Energiesparverband
Landstrasse 45, 4020 Linz, Austria
Tel. +43/732/7720-14386
office(at)esv.or.at

Conference venue
Stadthalle Wels, Pollheimerstrasse 1, 4600 Wels, Austria

Who attends the event?
Over 650 experts from more than 60 countries each year!

business actors engaged in the energy transition: energy companies, technology and equipment companies, service providers, planners, developers, financing community etc.
the energy research community
public sector representatives (e.g. EU institutions, national, regional and local governments, energy agencies)

Where does it happen?
In Wels/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 42 %. Over 72 % of all space heating and 33 % of the primary energy in Upper Austria already come from renewables. Over 4.7 billion Euro are invested annually in the energy transition.

The conference organiser: OÖ Energiesparverband
The OÖ Energiesparverband (ESV) is the energy agency of Upper Austria. The agency, which was established by the regional government, drives the energy transition by promoting energy efficiency, renewables and e-mobility. It provides comprehensive services to households, businesses of all sizes and municipalities. It also supports energy technology companies in the context of the Cleantech-Cluster.
