World Sustainable Energy Days 2027 is a four-day conference programme taking place in Wels, Austria, from 2 to 5 March. Organised by OÖ Energiesparverband, the regional energy agency of Upper Austria, it brings together policymakers, researchers, businesses and energy practitioners to discuss ways to advance Europe’s clean energy transition and climate-neutrality goals.21
The programme covers energy efficiency, renewable heating, industrial energy transition, smart e-mobility, energy communities and the European Pellet Conference. Sessions address policy developments, technologies and market trends, alongside scientific presentations, practical workshops and site visits. A major tradeshow at Messe Wels will showcase energy-related solutions.1
The event is intended for people working across energy policy, research, industry and practice. Its international reach is reflected in expected participation from more than 60 countries; a European Commission event listing reports over 650 experts.24 The programme is structured around several specialised conferences, including the European Energy Efficiency Conference, Industrial Energy Transition Conference and Smart E-Mobility Conference, giving participants opportunities to engage with both sector-specific issues and broader energy-transition questions.4