Maersk Offshore Wind Next-generation Wind Turbine Installation Vessel Maersk Viridis, to install turbines for Equinor’s Empire Wind project offshore New York
Seatrium has successfully delivered its next-generation Wind Turbine Installation Vessel (WTIV) Maersk Viridis, to Maersk Offshore Wind on 26 February 2026. The handover follows the completion of comprehensive sea trials and final readiness assessments at Seatrium’s flagship Tuas Boulevard Yard.
The milestone highlights Seatrium’s expanding role in the offshore wind sector and reflects the Group’s commitment to supporting the global energy transition with advanced, high-capacity installation vessels.
Mr William Gu, Executive Vice President, Seatrium Energy (Marketing), said, “This state-of-the-art WTIV represents a major step forward in pushing the possibilities for global offshore wind. We are proud to deliver this unique vessel to our partner, Maersk Offshore Wind, to advance the progress of the end customer’s wind farm development. This achievement not only underscores Seatrium’s engineering capabilities, it also reinforces the critical role we play in building the backbone to global offshore wind systems. As the world scales renewable energy at unprecedented speed, we remain dedicated to delivering innovative, future-ready solutions that drive the next generation of offshore wind development.”
Maersk Offshore Wind, CEO, Michael Reimer Mortensen: “This milestone marks an early but momentous step on our journey towards growing a future-ready fleet, fit to support the world’s ambitions for clean, secure energy. And for many of our team at Maersk Offshore Wind, it is the realisation of many years of dedication, technical creativity, and personal drive to make a difference to the industry. Thank you to everyone who has contributed to this project!”
Custom-engineered and built by Seatrium to install some of the world’s largest offshore wind turbines, this first-of-its-kind Wind Turbine Installation Vessel, sets a new benchmark for global offshore wind installation capability. The milestone marks the completion of an extensive construction programme involving the installation of a 1,900-tonne main crane, precision heavy-lift operations, full system integration, and rigorous validation by leading international classification societies. With a 180-metre hook height, the crane supports the installation of 15+MW-class turbines.
The vessel’s feeder-based installation design enhances operational efficiency, enabled by a stabilising system to hold feeder vessels for the transfer of offshore wind components, even in high sea states. This improves installation efficiency by extending the operational weather window, ensuring the WTIV can carry out uninterrupted installations, improving operational efficiency and reducing total cost and time of installation. This feeder-based installation solution is US Jones Act compliant and can also be deployed in other geographies. The WTIV is due to sail in March 2026 for its first assignment at the Empire Wind project offshore New York, where it will play a pivotal role in advancing the wind farm’s mission to deliver clean and reliable energy to 500,000 homes.
Throughout the project, Seatrium upheld its steadfast commitment to safety, achieving zero Lost Time Injuries (LTIs) – a testament to the Group’s strong safety culture and disciplined project execution.
