Jack-ups for WTIV and O&M

With the X-JACK heavy-lift jack-up designs we present our answer to the offshore wind industry’s need for fit-for-purpose, cost-efficient yet future-proof wind turbine installation vessels (WTIV). These designs are equally well-suited for the Operation & Maintenance (O&M) stage in the life of offshore wind farms.

Jack-up installation vessels use their legs to lift the vessel above sea level. Standing firmly on the seabed, the vessels operate safely without being impacted by the waves and currents. Their task is to install the various foundations and components of offshore wind farms. Our design driver is to significantly increase the efficiency compared to existing units in the market, both in the logistical layout and in the payload capacity, while being lighter. The combination of an innovative hull shape and vessel layout with well-proven jacking and crane technologies from reputable suppliers provides unrivalled heavy lift and cargo capabilities.

The ULSTEIN X-JACK-series is scalable and include four versions:

    • J101, tailored for maintenance and exchange of wind turbines/nacelles;
    • J102, sized for most optimal and cost effective installation of four (4) next generation wind turbines;
    • J103, designed to carry and install six next generation wind turbines to realize even the world’s most remote wind farm locations.
    • J104, is a fit-for-purpose design for offshore wind turbine installation and O&M operations.

Vessel designs

Name Length Beam VDL Crane capacity WTGs 8 MW WTGs 15 MW Accommodation Deck area
J102 Zero Emission 142 m 87 m 10,500 mT 2,500 mT 8 units 4 units 120 POB 6,500 sqm
J104 113.3 m 69.3 m 5,000 mT 1,250 mt - 2 units 60 POB 3,500 sqm
J101 80 m 50 m 1,500 500 mt - - - 1,600 sqm
J102 142 m 87 m 10,500 mT 2,500 mT 8 units 4 units 120 POB 6,500 sqm
J103 162 m 99 m 16,000 t 3,2000 mT 12 units 6 units 120 POB 9,000 sqm

Please contact us for more information

Ulstein Design & Solutions B.V.

Cornerstone Building (6th floor)
Rotterdam Airportplein 32
3045 AP Rotterdam
The Netherlands

Tel: +31 10 475 00 11