World Sustainable Energy Days 2023

Energy efficiency = Energy security! This is the motto of the next European Energy Efficiency Conference from 2 – 3 March 2023 in Wels/Austria.

From the 28 February 2023 to the 03 March 2023 4600 Wels, Haute-Autriche Autriche

Energy efficiency = Energy security!

The price crisis, multiplying signs of climate change, and threats to energy security urge us to act like never before. REPowerEU, the new EU initiative, reflects this urgency and provides new momentum for the energy transition. In 2023, the European Energy Efficiency Conference shows the critical role of energy efficiency in securing our clean energy future, and concrete policies, technologies and markets to get us there.

A comprehensive package

More than 60 speakers from all over the world offer latest news on policies, markets, products, technologies, financing, business models, research and case studies. Gain hands-on experience through peer-to-peer exchange. A leading tradeshow on sustainable energy presents new products and real-life solutions. Meet the entire energy efficiency world and enjoy Austrian hospitality!

Call for Papers & Speakers – application now closed (*updated January 2023)

Find out more in our first announcement and on the conference website


NEW in 2023

  • REPowerEU
  • Energy efficiency = Energy security
  • New EU directives and funding
  • Networking & career platform

Update: Programme now out!

As of 11 January 2023, the programme for this exciting summit is now available! View it here: