What are the World Sustainable Energy Days (WSED)?


2023: Energy Transition = Energy security!

The price crisis, multiplying signs of climate change, and threats to energy security urge us to act like never before. REPowerEU reflects this urgency and provides new momentum for the energy transition.

In 2023, the World Sustainable Energy Days show the critical role of the energy transition in securing our clean energy future and concrete policies, technologies and markets to get us there.

The annual conference is a leading event on the energy transition and climate neutrality with over 650 participants from over 60 countries.

When does it take place?

28 February - 3 March 2023

How to join?

Mark your calender, register today and join us in Wels at the World Sustainable Energy Days 2023!

register now

Conference office

OÖ Energiesparverband
Landstrasse 45, 4020 Linz, Austria
Tel. +43/732/7720-14386

Conference venue

Stadthalle Wels, Pollheimerstrasse 1, 4600 Wels, Austria

Travel Information

Who attends the event?

Over 650 experts from more than 60 countries each year! A wide range of actors engaged in the energy transition:

  • technology and equipment companies, energy companies, service providers, planners, developers, financing sector etc.
  • the energy research community
  • representatives from public bodies (e.g. EU institutions, national, regional and local governments, energy agencies)

Where does it happen?

In Wels/Austria. The region of Upper Austria is an ideal location for this conference: Through significant increases in energy efficiency and renewable energy, GHG emissions from buildings were reduced by 39 % in 10 years. 60 % of all space heating and 33 % of the primary energy in Upper Austria already come from renewables.

Upper Austria

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.

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