Norwegian offshore vessel operator BS Offshore has taken delivery of its second Commissioning Service Operation Vessel (CSOV).

The vessel, named WINDEA Clausius, features hybrid battery propulsion and methanol fuel readiness for low-carbon operations, which BS Offshore says aligns with parent group Schulte's commitment to sustainability.

The WINDEA Clausius includes the TWIN X-STERN design with azimuth propulsion at both ends, designed to ensure optimal performance in Dynamic Positioning (DP) operations, enhanced fuel efficiency, and improved operability in harsh offshore conditions.

This marks the second CSOV of this design that BS Offshore has received from Norwegian firm Ulstein, following the delivery of an earlier vessel in the series.

“The new 'WINDEA Clausius' completes our modern offshore fleet, which now comprises five state-of-the-art vessels,” says Matthias Müller, Managing Director at BS Offshore. “Together with her sister vessel 'WINDEA Curie', she is characterised by innovative design features, focused on reliability, operability, flexibility, and sustainability.”

Lars Lühr Olsen, Managing Director at Ulstein Verft, commented: "We are proud to deliver the WINDEA Clausius to BS Offshore, marking another milestone in our successful partnership. This vessel reflects our commitment to innovation and sustainability, delivering high performance with a minimal environmental footprint."

The WINDEA Clausius was named after the German physicist Rudolf Clausius, a pioneer in thermodynamics, during a ceremony on September 4, 2025.