Vonk! – 2 October 2026

Following last year’s successful event, Vonk! returns on Friday 2 October 2026: bigger, sharper and even more focused on what really works: learning, acting and building together to achieve energy savings and sustainable heating through powerful community initiatives. Vonk! is a co-creation day for and by people committed to heating and energy saving in their neighbourhood. This is the place where ideas spark, knowledge flows and collaborations are forged. This day is specifically designed for nascent residents’ initiatives that want to get started with heating and/or energy saving. For initiatives that have been around for a while but are still in the early stages of developing their heating project, Vonk! is also the place to learn from practical experience, exchange knowledge and draw inspiration from other initiatives taking similar steps. A day full of networking, inspiration and informative sessions, organised by Energie Samen, Buurtwarmte and leading initiatives in the field of heating and energy saving. Vonk! is a meeting place for fledgling initiatives and frontrunners who are (or wish to be) active in the field of heating and/or energy saving; it offers a rich programme featuring various sessions, workshops and discussions on themes relating to energy saving and heating, and employs interactive methods: concise presentations and collaborative activities. Find out more here about Vonk! 2026 – the annual heating and energy-saving festival on 2 October at the Gelderlandfabriek in Culemborg.