SX222 CSOV – high-capacity service vessel for offshore wind

SX222

Experience the future of offshore energy operations with the ULSTEIN SX222, a state-of-the-art CSOV (Construction Service Operation Vessel) focused on safety, comfort, and efficiency. Featuring advanced motion compensation and walk-to-work systems, it enables smooth transfers to offshore structures. The ULSTEIN TWIN X-STERN® design ensures fuel savings through improved manoeuvrability, energy-efficient features. The vessel has accommodations for up to 126 people, and energy source flexibility. Contact us to customise the SX222 to your needs.

Primary specifications as built

Additional Data

Note: Subject to selected variant configuration

SX222 – high-capacity CSOV for offshore wind operations

The SX222 is a next-generation construction service operation vessel (CSOV) developed by Ulstein to meet the growing demands of offshore wind farm development and maintenance. With a strong focus on operability, comfort, and sustainability, this vessel is designed to support walk-to-work operations and crew transfer in challenging offshore environments.

Designed for performance and flexibility

With accommodation for up to 126 people, the SX222 offers exceptional capacity for technicians and crew. The vessel is equipped with a large, unobstructed deck area and optimised logistics flow, making it ideal for multi-role offshore wind support. Its flexible design allows for customisation to meet specific project requirements.

Built for sustainability and global delivery

The SX222 is part of Ulstein’s commitment to sustainable ship design. Its hybrid propulsion system reduces environmental impact while maintaining high operational performance. The vessel can be built at Ulstein Verft in Norway or through our global network of partner yards, offering flexibility in delivery and localisation.

Turning visions into reality

The ULSTEIN SX222 is an advanced CSOV designed for the offshore wind sector. With its TWIN X-STERN design and hybrid battery propulsion, it offers exceptional stability, efficiency, and environmental responsibility.

Let’s collaborate to customise this vessel to meet your operational needs and ensure top performance for your crew and technicians.

Key features and innovations

The SX222 is a next-generation CSOV designed to support offshore wind farm operations, including crew transfer, maintenance, and cable installation. With accommodation for up to 126 people and advanced features like the TWIN X-STERN®, the vessel ensures safe, efficient, and comfortable operations in challenging sea conditions.

Exceptional manoeuvrability: The ULSTEIN TWIN X-STERN design offers exceptional manoeuvrability and stability in challenging sea conditions. With azimuth propellers at both ends, it can operate efficiently in either direction and maintain position effectively. The dual stern and bow layout minimises constant adjustments, enhancing crew comfort and operational efficiency. This design also results in significant fuel savings and quieter operations, benefiting the environment and reducing costs.

Environmentally conscious operations: The SX222 features hybrid battery propulsion and methanol fuel readiness, enabling carbon-neutral operations and reducing emissions. With up to 20MWh battery capacity, the vessel can operate for around 18 hours infield with offshore charging available, enhancing operational efficiency.

Comfort at sea: The design of SX222 accommodates up to 126 people on board, providing comfortable living quarters for extended offshore missions, which enhances technician and crew productivity and well-being.

Versatile deck space: Featuring a 500 sqm deck area, the vessel offers ample space for various equipment and operations, making it highly versatile for offshore wind and energy projects.

Proven SX222 design backed by decades of offshore expertise

Ulstein’s SX222 is built on a legacy of delivering high-performance vessels for demanding marine operations. With decades of experience in offshore shipbuilding, we offer a comprehensive knowledge base and a proven track record of excellence in quality, execution, and on-time delivery. Explore our reference projects to see how the SX222 performs in real-world offshore wind operations.

Olympic Boreas

Olympic Notos

WINDEA Curie

WINDEA Clausius

Windea Carnot

Windea Clarke

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