Offshore vessel Viking Lady, commissioned by Eidesvik Offshore, is by many referred to as “the world’s most important ship” because of its crucial role for the introduction of new energy carriers on board ships. Through the FellowSHIP research project partners Eidesvik Offshore, Wärtsilä Norway and DNV GL has explored the use of battery, hybrid and fuel cell technology in the maritime industry for over 15 years.

In 2012 the Viking Lady was named in a list of the 100 most important innovations for a sustainable future.

Important milestones:

2009 – Viking Lady was launched operating on LNG
2010 – Installation of a prototype fuel cell
2013 – Installation of hybrid propulsion system with lithium ion batteries
2018 – Project completed

Fuel reduction



The new hybrid system has cut the ‘Viking Lady’s’ fuel needs by 15 percent, meaning that the investment will pay for itself within a few years. Wärtsilä estimates that the payback time for a new vessel is approximately four years, and five to six years for a retrofit installation.

On the emissions side, the ‘Viking Lady’ may spare the atmosphere from some 1000 tonnes of CO2 in just one year. And compared to conventional diesel-driven vessels the reductions of NOX are 85-90 percent.


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In media:

Vil ha flere hybridskip på sjøenViking Lady blir sjøens Prius