Electric heating for an immersed tunnel in Norway.

The Bjørvika Tunnel is a motorway immersed on European Route E18 in the city center of Oslo. The tunnel links Festning tunnel in Oslo west with Ekeberg tunnel in Oslo east. The completed tunnel has an unbroken length of six kilometers. The Bjørvika Tunnel is the first immersed tunnel in Norway.

https://www.danfoss.com/en/service-and-support/case-stories/dhs/the-bjoervika-tunnel-oslo-norway/