Construction BS Offshore’s New CSOV Enters Next Phase

The hull for Bernhard Schulte (BS) Offshore’s latest Commissioning Service Operation Vessel (CSOV) has officially arrived at Ulstein Verft’s shipyard, signaling a significant milestone in the shipbuilding process. Designed for ‘walk-to-work’ (W2W) operations, this vessel will facilitate personnel transfer to wind turbines via a motion-compensated gangway. As the hull transitions into the next phase of construction, a dedicated team from Ulstein Verft is set to begin outfitting and integrating advanced technologies.

Progressing Towards Completion

The hull of the new CSOV has been under construction at the CRIST yard in Poland, where it was closely monitored by a site team from Ulstein Verft. While the hull was being built, designers and engineers from various Ulstein companies in Norway and Poland worked diligently to finalize the detailed drawings for the vessel. With the hull’s arrival at Ulstein Verft, the shipbuilding process enters a new phase that includes securing, painting, outfitting, piping, equipment installations, electrical work, and system integration.

This new vessel is a sister ship to Yno 320, which was launched at Ulstein Verft on February 23, 2025. Matthias Müller, Managing Director of BS Offshore, expressed enthusiasm about the project, stating, “We are pleased to see the journey toward completing the second CSOV is progressing and look forward to the continued progress and collaboration in bringing this vessel, designed with efficiency, safety, and sustainability at its core, to life.”

Like its predecessor, the new CSOV is part of the innovative TWIN X-STERN series, recognized for its outstanding operational performance and seakeeping abilities. During the outfitting phase, the vessel will be equipped with cutting-edge technology, including a 3D-compensated crane and a gangway, ensuring safe and efficient transfer of personnel and cargo to offshore wind turbine facilities.

Environmental Commitment and Future Readiness

The new CSOV will feature a diesel-electric propulsion system with significant battery energy storage, which will greatly reduce its environmental impact. Additionally, the vessel is designed to be compatible with methanol as a future fuel option. Scheduled for delivery in 2025, the vessel will provide modern, high-comfort accommodation for up to 132 crew members and clients, reinforcing its role in supporting the offshore wind sector.

This marks Ulstein’s fifth W2W vessel for BS Offshore, with all vessels designed by Ulstein Design & Solutions and constructed at Ulstein Verft. BS Offshore is recognized as a pioneering ship owner, and Ulstein is proud to continue this partnership, contributing to the advancement of sustainable maritime solutions.