Conference fees

All fees include conference documentation.
All fees plus 10 % VAT


All WSED conferences
(online and presence)
21 - 25 June 2021 70 Euro
European Pellet Conference
(online and presence)
22 June 2021 30 Euro
European Energy Efficiency Conference
includes the conferences: Efficiency Policy, Industrial Efficiency, E-Mobility (online and presence)
23 - 25 June 2021 30 Euro
Energy Efficiency Policy Conference
(online and presence)
23 June 2021 20 Euro
Industrial Energy Efficiency Conference
(online and presence)
23 June 2021 20 Euro
Smart E-Mobility Conference  
(online and presence)
24 June 2021 20 Euro
Innovation Workshops: Green Finance . Buildings . Technologies
25 June 2021 free
Young Energy Researchers Conference (Online) 21 June 2021 free
Students can apply for free participation to office(at)    


Information & conference office

OÖ Energiesparverband
Landstrasse 45, A-4020 Linz, Austria
T: +43-732-7720-14386
E: office(at)

The World Sustainable Energy Days are organised by the OÖ Energiesparverband, the energy agency of Upper Austria with the mission of promoting energy efficiency and renewable energy sources.
Request for further information

Conference languages

The conference languages are English and German.
Simultaneous interpretation is provided.

Conference venue + Online

Stadthalle Wels, Pollheimerstrasse 1, A-4600 Wels, Austria

The event is subject to change in connection with COVID-19.


Mark your calendar, register today and come join us in Wels at the World Sustainable Energy Days 2021!