Seatrium has handed over a next-generation wind turbine installation vessel (WTIV) to Maersk Offshore Wind after completing its sea trial programme and passing final readiness checks. The Singapore-based group said the build was finished with zero Lost Time Injuries.
Built for installing offshore wind turbines in the 15+ MW class, the vessel is fitted with a 1,900-tonne main crane and a 180-m hook height.
Seatrium said the WTIV uses a feeder-supported installation concept. A stabilising arrangement secures feeder vessels during component handover, including when sea conditions are more challenging. The company said the approach can broaden the workable weather window and shorten installation duration while lowering costs. It is compliant with U.S. Jones Act requirements and is intended for deployment beyond the U.S. market.
The WTIV is due to depart in March 2026 for its first assignment on the Empire Wind development off New York, supporting turbine installation for a project intended to supply electricity to 500,000 homes.
According to Seatrium, the construction scope covered heavy-lift activities, end-to-end system integration, and verification steps involving international classification bodies. A company executive said the delivery highlights the yard’s engineering capabilities and its contribution to offshore wind infrastructure development.
