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Olympic contracts up to four offshore wind vessels at Ulstein Verft

Posted on July 18, 2022

Olympic contracts two firm Construction Service Operation Vessels (CSOVs) and two options at Ulstein Verft. The vessels have hybrid battery propulsion and are prepared for methanol fuel to enable zero emissions. They are based on the ULSTEIN SX222 design with TWIN X-STERN from Ulstein Design & Solutions AS.

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Norway-based Olympic has a fleet that operates in the subsea service and renewable energy markets. Olympic was established in 1996 and is an important player in the maritime cluster on the Northwest coast of Norway. Olympic has previously built six vessels at Ulstein Verft and was the first customer of Ulstein Design & Solutions.

“For us, it will be crucial that the vessels are delivered on time and at the right quality, and this is what Ulstein Verft is known for”.
Stig Remøy, Olympic Group”This means we can meet our customers’ demands and get the vessels into operation at the agreed time. The TWIN X-STERN is a smart concept, optimised for low energy consumption. During operation, the offshore wind service vessels stay positioned at the turbines most of the time, and with the main propellers fore and aft, these vessels will reduce the energy requirement to a new level when on DP”, says CEO Stig Remøy in Olympic Group.


Remøy continues:

“As a shipowner in the Norwegian maritime cluster, it is important for us to invest in this cluster. With a shipyard, ship designer, suppliers and Vartdal Invest as a co-investor, this is a project with a strong local ownership.”

“We are excited to be working with Olympic again,” states CEO Cathrine Kristiseter Marti, Ulstein Group, “an important and innovative player in the Norwegian maritime cluster and a company that we have had the pleasure of working with for many years, through many complex and successful projects.

“With the current challenging economic and political climate, these contracts are a result of a pragmatic and good cooperation between the parties, where both parties have gone to great lengths to find good and viable solutions.”


The ULSTEIN SX222 vessels have a length of 89.6m and a beam of 19.2m. They accommodate 126 people in 91 cabins. The vessels are prepared for future requirements at the offshore wind farms. The vessels are powered by diesel-electric propulsion with variable speed in combination with large battery energy storage systems. The vessels are prepared for methanol fuel and have available space for additional battery capacity for full-electric repowering when the infrastructure for such is available. The hull shape and hybrid propulsion system will ensure high operational performances and seakeeping, and substantially reduced environmental footprint.

“We have cooperated closely with Olympic in the details of this project and are very eager to start the newbuild project,” states Lars Lühr Olsen, managing director of Ulstein Verft.

“We are very happy for the trust Olympic has placed in us and will do our utmost to deliver the vessels according to the agreed quality and timeline. The vessels are planned for delivery during spring and summer 2024.”

These contracts are an important milestone also for Ulstein Power & Control AS, as they are contracted to deliver an extended power and automation package, including a large battery supply.


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