Windcat has officially presented Windcat Rotterdam, the first of six CSOVs in its Elevation Series, according to the company’s announcement from Singapore.
Built at Ha Long Shipyard in Vietnam in cooperation with Damen Shipyards Group, Windcat and CMB.TECH, the vessel is designed to accommodate up to 120 people and is positioned as a new standard in comfort, performance and decarbonisation.
Windcat Rotterdam is a Commissioning Service Operation Vessel intended to support construction, commissioning and maintenance at offshore energy projects. The vessel functions as a floating base providing access to offshore assets for personnel and equipment. Its interior includes single and double cabins, a gym, entertainment areas, and catering and housekeeping services, with the layout developed to create what the company describes as a “home away from home” for offshore crews.
The vessel incorporates fuel-efficient and emission-reducing technologies, including a closed bus switchboard configuration, hybrid battery-electric propulsion and four azimuth thrusters. These systems are expected to reduce CO2 emissions by 30%. The design also prepares the vessel for hydrogen integration, with a MAN dual fuel hydrogen engine intended for the auxiliary genset.
CMB.TECH’s hydrogen technology is planned for future Elevation Series vessels once regulatory approvals are finalised.
Windcat Rotterdam is built for offshore deployment of up to 30 days and features a 3D motion-compensated gangway and the world’s first 10-ton 3D motion-compensated crane, intended to improve operability in rough sea conditions.
Windcat Windcat is a vessel operator specialising in offshore support services, including crew transfer and service operation solutions for energy projects. The company develops and manages specialised vessels designed for personnel transport, offshore accommodation and operational support, including hydrogen-powered platforms through its collaboration with technology partners.
Damen Shipyards Group is a Dutch shipbuilding and maritime engineering company that designs, constructs and services a wide range of commercial and support vessels. It operates shipyards and service locations internationally and engages in long-term cooperative projects with industry partners on specialised vessel series such as offshore service ships.



