MacArtney Offshore Wind Solutions Secures Contract for Integrated Cable Lay Spread for N-Sea’s CLV Altera
MacArtney Offshore Wind Solutions, in partnership with Subsea Cable Assets (SCA) and Enersea, has been awarded a contract to design and deliver a fully integrated cable lay spread for N-Sea’s new cable laying vessel, Altera.
The collaboration brings together MacArtney’s advanced mission equipment and control systems, SCA’s fabrication and EPCI expertise, and Enersea’s deck layout and integration design to create a tailored solution for offshore wind cable installation and repairs.
The integrated cable lay spread features a 4,500t carousel, an automated loading tower with integrated tensioner, a 15t tracked deck tensioner, a quadrant and quadrant handling system with sliding banks, cable highways, retractable stern chutes, and a variety of winches.
This turnkey system is designed to enhance operational efficiency, ensure safety, and enable swift mobilization, customized to meet the specific demands of the Altera vessel. The package includes concept and layout design, hardware delivery, and seamless execution, all aimed at minimizing disruptions during the construction process.
Delivery and mobilization of the integrated cable lay spread onboard the Altera are scheduled for the first quarter of 2026.
Quotes from Industry Experts
Mike Welling, Business Development Manager at MacArtney Offshore Wind Solutions, commented on the collaboration, stating, “By joining forces with SCA and Enersea, we’ve brought together the best of three worlds—innovative technology, smart engineering, and robust execution.”
About CLV Altera
The Altera cable laying vessel is currently under construction by Neptune Marine and is set to transfer to The Netherlands in the fourth quarter of 2025 for fitting and commissioning in the second quarter of 2026. The DP2 vessel will be dual fuel (methanol) prepared, equipped with a 25t offshore knuckle boom crane, mooring system, and can accommodate up to 99 people.
This collaboration between MacArtney Offshore Wind Solutions, SCA, and Enersea represents a significant step forward in the offshore wind industry, showcasing the innovation and expertise needed to support the growing demand for renewable energy infrastructure.