Bernhard Schulte Offshore (BSO) has taken delivery of its newest commissioning service operation vessel (CSOV), built by Ulstein Verft in Norway.
The vessel, named Windea Clausius, was officially christened on 4 September and will serve the global offshore industry.
BSO managing director Matthias Müller said: “The new Windea Clausius completes our modern offshore fleet which now comprises five state-of-the-art vessels.
“The new ship and its sister vessel Windea Curie, which has been already delivered in June, are characterised by their innovative design features focused on reliability, operability, flexibility, and sustainability.”
Windea Clausius features two sterns and azimuth propellers at both fore and aft, optimising performance in dynamic positioning operations and enhancing fuel efficiency.
Equipped with a large, height-adjustable, centrally located walk-to-work gangway and elevator tower for personnel and cargo transfers, the vessel also includes a 3D motion-compensated crane for offshore lifts of up to five tonnes.
Onboard logistics are optimised with spacious storage areas and stepless access to offshore installations.
In addition, Windea Clausius features a height-adjustable boat landing system that allows for stepless transfer of personnel and equipment between the CSOV and smaller crew transfer vessels. BSO said this is an important safety aspect, especially while operating within offshore wind farms.
The vessel offers up to 90 cabins with windows for charterers’ offshore personnel. In total, there are 111 cabins providing accommodation for up to 132 people.
With hybrid battery propulsion and methanol fuel readiness, the vessel is designed for low-carbon operations and is suited for both operations and maintenance (O&M) and construction support roles, particularly in harsh offshore environments.
The ship is named after the German physicist Rudolf Clausius whose work on thermodynamics established fundamental principles for understanding energy transformations, including wind energy.
“The delivery of Windea Clausius marks another important milestone in our long-standing collaboration with Bernhard Schulte Offshore,” said Lars Lühr Olsen, managing director at Ulstein Verft.
“This vessel represents the forefront of maritime innovation, with a strong focus on sustainability, flexibility, and safety. We are proud to contribute to the green transition in the offshore industry by delivering solutions that combine high performance with a low environmental footprint.”
Pictured from left: Lars Lühr Olsen and Matthias Müller with Godmother Melanie Reinke from Windea Offshore; Martinus Warholm (Ulstein Verft); Windea Clausius captain Rainer Müller; Ian Beveridge (BSO)


