The International District Heating Summit 2025 opened on 29 October with a full day of site visits across Zealand, giving participants firsthand experience of Denmark’s most innovative heating systems.
Two parallel tour tracks offered unique insights into both large-scale and local district heating solutions.
Participants visiting Vestforbrænding and Envafors explored how major utilities are advancing CO₂-neutral energy through waste incineration, carbon capture, geothermal energy, and large-scale biomass and solar integration.
The second track visited Hillerød Forsyning, Smørum Kraftvarme, and Albertslund Forsyning, where smaller, community-based systems demonstrated flexible and scalable approaches to heat supply – including surplus heat recovery from industry, electrification with heat pumps, and low-temperature network design.
Track 1: Larger Grids
Track 2: Smaller Grids
Throughout the day, utility experts and system operators shared strategies, challenges, and lessons learned with an international audience of district heating professionals. The tours concluded with a networking dinner in Copenhagen, where participants continued the discussions sparked by the day’s visits.
The site tours marked a powerful start to the Summit – highlighting how Danish utilities are leading the way toward sustainable, secure, and scalable district heating.
The trip is arranged in close collaboration with Brundtland and the Danish District Heating Association.
See the photo gallery from the day’s visits below.
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