Dutch subsea services specialist and vessel operator N-Sea is strengthening its fleet capacity with an additional newbuild.
The Dordrecht-based company is bringing in a methanol-ready multipurpose cable maintenance vessel under a newbuilding project by compatriot Neptune Marine.
The vessel will be built in Poland and transferred to the Netherlands in the fourth quarter of 2025 for fitting and commissioning in the second quarter of 2026.
The unit, named Altera, will be equipped with a 25t offshore knuckle boom crane, a mooring system, a 4,500t carousel, a 15t tensioner, and be fit to accommodate up to 99 people.
The move to further expand the fleet follows a recent seven-year framework agreement for subsea cable maintenance and repairs with Italy’s Prysmian.
The newbuild will be able to operate year-round in both very shallow and deep water conditions on interconnector, export and inter-array cable projects, N-Sea said.
Late last year, the company signed up for a hybrid survey and ROV support newbuild in a long-term charter deal with Mainport Shipping. The vessel will also be built by Neptune, with delivery scheduled in the first quarter of 2026.
