Viking Lady OSV, Offshore Supply Vessel
A state-of-the-art offshore supply vessel, Eidesvik Offshore’s Viking Lady, is designed to safely service offshore installations in the extremely harsh waters of the North Sea. As the first merchant ship to use a fuel cell as part of its propulsion system, the Viking Lady was already one of the world’s most environmentally friendly ships. In the second phase of the Fellowship project, the vessel was outfitted with a lithium ion battery pack to enhance efficiency further.
For the third phase, a comprehensive field measurement program was conducted by Eidesvik and Wartsila during 2014/15. The Viking Lady achieved a fuel consumption reduction of 15% on average, showing strong performance in all operating modes. Phase 3 validates the worth of the hybrid OSV concept and indicated areas for improvement in ship system design and battery dimensioning.