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Ulstein delivers state-of-the-art service vessels for offshore wind

Shipbuilders are following wind farms out to sea. Ulstein delivers pioneering vessels to some of Europe’s most exciting offshore wind projects.


At a glance

  • Walk-to-work vessels for offshore wind
  • Service operation vessels for long stays at sea
  • High comfort and good fuel efficiency

Solution status


Wind farms are moving offshore. The wind is more reliable at sea than over land, and ocean-based turbines intrude less on local communities.

According to Wind Europe, there are 110 offshore wind farms in 12 European countries as of the end of 2019. Accompanying these is a growing demand for vessels to service large-scale wind farms.

Pioneering service operation vessels for offshore wind farms

Ulstein specialises in service operation vessels (SOVs) for offshore wind farms. The vessels are purpose-built and equipped with gangways allowing offshore service personnel to walk to work, from shore to ship to wind turbine. Because they serve as a floating hotel for weeks at time, the SOVs offer a high level of comfort.

One of its recent newbuilds, Windea Jules Verne, was delivered from Ulstein Verft in 2020 and has started her first assignments. The vessel features Ulstein’s patented X-BOW® and X-STERN® hull line designs for improved operability and comfort, reduced resistance in head seas, and thus, reduced fuel consumption and emissions.

Other recent walk-to-work vessels delivered by Ulstein include: Acta Centaurus,WindeaLeibniz, Windea La Cour, Seaway Moxie and Acta Auriga.

Ulstein vessel

The Windea Jules Verne features Ulstein’s X-BOW® and X-STERN™ hull designs.

Concrete benefits

Ulstein is well established in the offshore wind industry, with ship designs for all stages of an offshore wind farm including installation and decommissioning, cable laying and pipe laying, in addition to service vessels.

Ulstein has extensive experience in shipbuilding. The company has built numerous offshore wind vessels at its shipyard and followed up construction at other yards.

Ulstein has also launched two hydrogen-hybrid ship designs for offshore wind: a construction support vessel and a wind turbine installation vessel.

Market potential

According to Navigant Research, the global capacity of offshore wind farms is almost 17 GW, with 7.9 GW on its way to being installed. Zion Market Research forecasts the industry to grow by an average of 16.2 per cent every year until 2022, increasing the demand for high-quality service vessels.

Ulstein Group is a large group of shipbuilding, ship design and supporting companies. Founded in 1917, it is one of Norway’s largest shipbuilders and has been active in the offshore wind market for well over a decade.

Ulstein installation vessel

Windea La Cour.

Contact company



Osnesvegen 118, 6065 ULSTEINVIK, Norway

Lars Ståle Skoge

Lars Ståle Skoge

Commercial Manager, Ulstein Design & Solutions AS

+47 915 81 226

[email protected]

Nick Wessels

Nick Wessels

Marketing and Sales Manager


[email protected]

Rolf Ottar Rovde

Rolf Ottar Rovde

Sales Manager Service & Retrofit, Ulstein Power & Control AS

+47 901 05 673

[email protected]

Kolbjørn Moldskred

Kolbjørn Moldskred

Sales Manager

+47 957 22 099

[email protected]

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