Windea TBN

Service Operation Vessel (SOV) for the offshore wind industry. The X-BOW and X-STERN hull lines improve the ability to stay positioned with little movements for safe transfer of technicians and equipment to the turbines. Accommodation for 60 people in single cabins, of which 40 are dedicated to service technicians.

Vessel type

Offshore Wind



Built by

Ulstein Verft AS



Owned by

Bernhard Schulte Offshore/ICBC Leasing

Yard number


Designed by

Ulstein Design & Solutions AS

Ordered by

Bernhard Schulte Offshore

Operated by

WINDEA Offshore

Principal dimensions

88 m
18 m
Dead weight:
3150 tonnes
Draught (max):
6.4 m
Speed (max):
13.5 kn
60 POB
Deck area:
380 sqm

Note: Subject to selected variant configuration


Fuel oil:
1150 cbm
Fresh water:
1200 cbm
Ballast water:
2400 cbm


  • Det Norske Veritas +1A1, SF, E0, Offshore Service Vessel, DYNPOS AUTR, CLEAN DESIGN, COMF-V(3) C(3), DK(+), BIS, NAUT-AW, LCS-DC, BWM-T, HELIDK, Recycable

Featured solutions

Ship history

Yard number 310 from Ulstein Verft and X-BOW hull line design number 100 from Ulstein Group. Features the X-STERN solution for increased comfort, noise and vibrations when moving backwards in between the turbines at the wind farm. The vessel has been contracted by Siemens Wind Power to service Vattenfall's offshore wind installations Sandbank and DanTysk offshore Germany.

Please contact us for more information

Ulstein Verft AS

P. O. Box 158
NO-6067 Ulsteinvik

Tel: +47 7000 8000