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Utilising electrolyser heat in the heating network

25. September 2023

Solution provider


Everfuel is the new fueling hydrogen fuel company in Europe. Dedicated to commercialising green hydrogen for mobility and industry.

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In Fredericia, Denmark, the HySynergy project is revolutionising the energy landscape through an innovative collaboration between the green hydrogen producer Everfuel and the local district heating company TVIS. The project aims to harness the excess heat generated from Everfuel’s green hydrogen production and supply it to local households.


To achieve this, TVIS has established a 1.2 km transmission line connecting their district heating network to Everfuel’s 20 MW electrolysis plant. This enables the transfer of excess heat from the hydrogen production, which would otherwise be wasted, to be utilised in district heating.


The project is a win-win scenario for both parties. By repurposing the heat, the energy efficiency of Everfuel’s hydrogen facility is significantly improved, increasing it to the highest standard of approx. 87 percent plant efficiency. TVIS also benefits by providing clean heating solutions to 1,800 households in the area, and helping local businesses reduce their carbon footprint. The collaboration demonstrates the power of synergistic partnerships in driving the energy transition.

Green hydrogen is Danish hydrogen

This case is a part of the white paper “Green hydrogen is Danish hydrogen”. Discover Denmark’s plans to produce green fuels and decarbonise global transport and energy-intensive industries.

Explore the white paper