Shipbuilder Ulstein Group and SeaOwls have unveiled what they say is a pioneering heavy-lift jack-up vessel design for developing wind farms.

The cruciform layout makes the ship more than 10% lighter than conventional designs, the companies claimed.

They hope to install next-generation 10-12MW wind turbines in the same time it takes for 6-8MW units now.

“The development of this novel jack-up vessel is the logical next step in our strategy to widen our portfolio and become a leading company in supporting the offshore wind industry with more efficient assets,” said Tore Ulstein, deputy CEO at Norway's Ulstein.

“Combining the vast track record in heavy lift vessel designs from our Dutch Ulstein branch with SeaOwls’ experience in jack-up technology, resulted in an innovative jack-up vessel concept based on proven technologies.”

The SOUL series will come in various sizes, allowing the transport of up to six turbines.