World’s largest ro-ros to run on gas

Malcolm Latarche

Malcolm Latarche · 10 May 2019


Danish naval architect Knud E Hansen has designed the first generation of LNG-powered ultra-large ro-ro vessels for the newly-established Swedish company Wallenius-SOL which will specialise in transport of forestry products.

The 1A Super ice-classed vessels will have a length of 242 m and a deadweight capacity of around 27,000 tonnes making them largest in the class. They will have around 5,800 lane metres and a speed of 20kt.


The Vessels will be the first Mega ro-ro vessels in the world powered by LNG-fuelled engines, thus reducing total emissions and carbon footprint. During port calls the vessels will run on green electricity from shore connections or LNG. Together with other environmentally friendly initiatives the vessels will not only be among the largest in the world, they will also be among the industry leaders of green ro-ro vessels.

Up to four vessels have been ordered at Yantai CIMC Raffles Offshore in China. Knud E Hansen will provide the engineering package for the construction and approval by classification and flag state authorities.

This is the 4th series of ultra-large RoRo vessels designed by Knud E Hansen since 2016, resulting in more than 20 of these vessels being built in the coming years. During the design development Knud E Hansen has worked closely with Wallenius-SOL in order to optimise the design for the unique design criteria and operational requirements of Wallenius-SOL.

The owner is a new company formed at the end of April by two Swedish operators Wallenius and Swedish Orient Line to transport forestry products and other goods in a network covering the Gulf of Bothnia, the Baltic Sea and the North Sea. The first customers to sign long-term agreements were Stora Enso and Metsä Board.

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