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

Wind farms are moving offshore. The wind is more reliable at sea than over land, and ocean-based turbines intrude less on local communities. Accompanying this growth is a growing demand for vessels to service large-scale 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 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.

According to the GWEC Global Offshore Wind Report 2026, more than 9 GW offshore wind capacity was installed in 2025, and more than 300 GW in the pipeline for the next decade. Such will continue to increase 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.