What are the World Sustainable Energy Days (WSED)?


Energy transition now – fast, smart, resilient!

No time like now for the energy transition! Price fluctuations, geopolitical instabilities and the climate crisis make the importance of the energy transition evident. A strong push in all sectors is critical in delivering energy security and sustainability. The 2024 World Sustainable Energy Days will show how to realise the high policy ambitions of the upcoming EU legislation and how to strengthen the clean energy markets. The World Sustainable Energy Days (WSED) are 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?

5 - 8 March 2024

How to join?

Mark your calender, register today and join us in Wels at the World Sustainable Energy Days 2024!

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?

Our audience: the entire energy efficiency world!

  • business actors engaged in the energy transition: technology and equipment companies, energy companies, service providers, planners, developers, financing community etc.
  • the energy efficiency research community
  • public body representatives (e.g. EU institutions, national, regional and local governments, energy agencies)
  • over 650 experts each year from more than 60 countries!

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 39 % in 10 years. Over 60 % of all space heating and 33 % of the primary energy in Upper Austria already come from renewables. Over 2.8 billion Euro are invested annually in the energy transition.

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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