Kongsberg Maritime Equips Four New CSOVs for IWS Fleet

Kongsberg Maritime has secured a significant contract with IWS Fleet, a subsidiary of Integrated Wind Solutions (IWS), to provide vessel design and integrated technology systems for four new commissioning service operation vessels (CSOVs) intended for offshore wind operations. The contract, announced on October 13, 2026, underscores the growing demand for specialised vessels in the offshore wind sector.

Vessel Specifications

Each of the four CSOVs will feature a double-ended design, equipped with four rim-drive azimuth thrusters—two forward and two aft. This design enables symmetrical operations and efficient manoeuvring between offshore wind turbines. The thrusters utilise permanent magnet motor technology and will work in conjunction with Kongsberg Maritime's dynamic positioning system to ensure precise station-keeping capabilities during offshore operations. The vessels will be built by Nantong Rainbow Offshore & Engineering Equipment, based on Kongsberg Maritime's latest UT 5519 DEx design, marking the next generation of the Skywalker Class.

Technical Features

Kongsberg Maritime's scope includes the provision of comprehensive electrical power systems, navigation and bridge systems, propulsion, deck machinery, and dynamic positioning systems. The UT 5519 DEx design builds on the operational experience of the first six Skywalker Class vessels, incorporating advancements aimed at improving efficiency and performance. The electrical power systems and integrated technology systems are expected to significantly enhance the operational capabilities of the CSOVs, ensuring reliable and efficient support for offshore wind farms.

Operational Capabilities

Designed for offshore wind farm commissioning, operation, and maintenance, these CSOVs will accommodate up to 120 personnel, serving as walk-to-work platforms. This will allow technicians to remain offshore for extended periods, thereby enhancing operational efficiency and reducing the need for frequent personnel transfers. The UT 5519 DEx design is tailored to meet the unique challenges of offshore wind operations, ensuring that the vessels can operate effectively in diverse weather conditions and sea states.

Delivery Schedule

The order will expand the Skywalker Class series to ten vessels, following the delivery of six vessels since 2023. The first of the four new vessels is scheduled for delivery in 2029, with subsequent deliveries to follow in the subsequent years. This expansion highlights the commitment of IWS Fleet to supporting the burgeoning offshore wind industry, particularly in the commissioning and maintenance of offshore wind farms.

What This Means for Operators

The introduction of these advanced CSOVs will significantly enhance the operational efficiency and reliability of offshore wind farm support services. The vessels' advanced design and integrated technology systems will enable operators to provide more effective and efficient maintenance and support services, thereby improving the overall performance and lifespan of offshore wind farms. Additionally, the enhanced station-keeping capabilities provided by the dynamic positioning system will allow for more precise operations, reducing the risk of equipment damage and downtime. This development underscores the growing importance of specialised vessels in the offshore wind industry and sets a new standard for vessel design and technology integration.

As the offshore wind sector continues to grow, the role of advanced CSOVs becomes increasingly critical. The partnership between Kongsberg Maritime and IWS Fleet represents a significant step forward in the development of specialised vessels for the industry, paving the way for more efficient and reliable operations in the future.

© 2026 AtCoMedia. Inc

© 1996-2026 Maritime Activity Reports, Inc.

© 2026 The Maritime Executive

© 2026 Container News

© 2026 Offshore Engineer

© 2026 Marine Link / MarineNews