3 D image of the new trenching support vessel Jan De Nul ordered 2 2

Jan De Nul contracts Ulstein Design & Solutions AS trenching vessel design

Ulsteinvik, Norway, 10 March 2026  – Jan De Nul has selected a customised vessel design from Ulstein Design & Solutions AS for its latest addition to its offshore fleet. The realisation of the trenching vessel marks a milestone in the collaboration between two leading maritime innovators. The vessel is scheduled for delivery in 2028. The basic design is based on a robust and globally proven subsea vessel design.

Published
10 March 2026
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Proven platform with enhanced capabilities

This custom-designed vessel, with her deck space and deadweight, will support extensive trenching operations. Subsea trenching is the process of creating a protective channel on the seabed to bury pipelines, power cables, and telecommunication lines.

Muysewinkel Thomas, Project Manager Vessel Construction at Jan De Nul says:

We chose Ulstein because of their proven vessel design, which provides a strong foundation to integrate all of our operational requirements. This collaboration allows us to combine reliability with tailored solutions for our operations. We look forward to a close and productive cooperation throughout the process. Together, we will deliver a state-of-the-art vessel fully adapted to the needs of our clients and crew.

Rolf Petter Almli, sales manager at Ulstein Design & Solutions AS states: 

We greatly appreciate the confidence Jan De Nul has shown by selecting Ulstein Design & Solutions. Jan De Nul is a new customer to us, and we look forward to contributing with a modern and operationally flexible vessel design.

3 D image of the new trenching support vessel Jan De Nul ordered 2 2

Versatile and modular design

Ulstein’s vessel design is engineered for modularity, supporting a broad range of offshore sectors, including energy, construction, and deepwater operations. This version will be purpose-built for subsea trenching, ensuring precision performance. The ULSTEIN X-BOW® hull design improves comfort, reduces wave resistance and fuel consumption.

Ultra-low emission vessels

The vessel is an Ultra-Low Emission vessel (ULEv). ULEv is a highly advanced dual-exhaust filter system which removes up to 99% of nanoparticles from emissions using a diesel particulate filter and a nitrogen oxides (NOx) reduction system. The system also significantly reduces exhaust gas pollutants. The vessel's engines can run on biofuel and green methanol, reducing CO₂ emissions. Thanks to the ULEv system, the vessel complies with the strict European Stage V emission standards for inland waterway vessels. Moreover, NOx emissions are reduced to the extent that this vessel meets the even stricter EURO VI emission limits. 

About Jan De Nul:

Jan De Nul shapes water, land and energy around the world, addressing some of the most important challenges of our time. From the rising sea level to the energy transition, from polluted soil to sustainable construction: we engineer solutions that future-proof our world, known for their complexity and high stakes. Our Can-Do people focus on four areas of expertise: Offshore Energy, Dredging Solutions, Construction Projects and Planet Redevelopment. Together, we all work towards one shared goal: to improve the global quality of life for generations to come. 

About Ulstein Group:

Ulstein Group is a family-owned pioneer in naval architecture, ship design, and maritime innovations, headquartered in Norway.  Ulstein Design & Solutions AS develops award-winning ship designs and system solutions, offering services such as engineering, project management and on-site shipbuilding assistance.

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Rolf Petter Almli DSC5166 comp bw

Rolf Petter Almli

Description
Sales Manager
Affiliation
Ulstein Design & Solutions AS

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