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  • Arild Søvik

Part of a study on risks with battery-electric transport vehicles in tunnel excavation

Oppdatert: 14. mar.

NPRA granted this risk analysis study to a project consortium consisting of ILF Consulting

Engineers Norway joint by Søvik Consulting (Norway), Graz University of Technology, Institute

of Thermodynamics and Sustainable Propulsion Systems (Austria) and ILF Consulting Engi-

neers Austria. The study has been based on currently market available battery-electric and

equivalent diesel transport trucks.


The Norwegian Public Roads Administration (NPRA), Statens vegvesen, has selected the Ro-

galand Fixed Link in the E39 as a pilot project for fossil-free construction sites.


In Norway, the Public Roads Administration, Statens Vegvesen, is currently building the twin-tube Boknafjord Tunnel north of Stavanger as part of the E39 Rogfast project. This tunnel will be the longest and deepest sub-sea road tunnel in the world, with a length of 26.6 km and a depth of 390 m below sea level, with an intersection in the tunnel which lead to a local island (Kvitsøy).



For the upcoming contract for section E02 (Rogfast E02), NPRA is aiming to further reduce greenhouse gas emissions by investigating the possibility for switching the trucks transporting rock from conventional diesel variants to battery-electric alternatives. Primary focus is to ensure health, safety and environment (HSE) and investigate risks related to battery-electric vehicle fires. In addition, NPRA wants to gain knowledge about the impact switching machinery could have on the Norwegian Method of Tunnelling.


Read more about the report on the Public Roads Administration website (link) and report (link).

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