A battery hybrid Service Operation Vessel (SOV) for the offshore wind industry, also attractive for work in O&M (Operation and Maintenance) or construction support. Equipped with a large, centrally positioned W2W motion compensated gangway & elevator tower for personnel and cargo transfers.



Owned by

Bernhard Schulte Offshore/ICBC Leasing

Yard number


Designed by

Ulstein Design & Solutions AS

Operated by

Bernhard Schulte Shipmanagement

IMO Number


Principal dimensions

93.4 m
18 m
Dead weight:
3300 tonnes
Draught (max):
6.4 m
Speed (max):
13 kn
120 POB

Note: Subject to selected variant configuration


Fuel Oil:
780 cbm
Fresh Water:
850 cbm
Water Ballast:
2150 cbm


  • SF, E0, Offshore Service Vessel, Strengthened (DK, HA), DYNPOS (AUTR), CLEAN (DESIGN), COMF(C-2,V-2), NAUT(OC), BWM(T), BIS, RECYCLABLE, Battery (Power)

The design is modified to fulfil the GE Renewable Energy tender requirements and the ship owner’s special choices of mission equipment. In addition to the gangway and elevator tower for personnel and cargo transfers, there is also a 3D compensated crane capable of 2-ton cargo lifts. The optimised on-board logistics includes large storage capacities, of which half is under roof in a controlled environment, and stepless approach to the offshore installations. The vessel is equipped with a fuel-efficient drive system including battery solution from ULSTEIN. With all main equipment and operations in the aft ship, the vessel will naturally operate astern while in-field. Keeping the X-STERN towards the weather, there will be no slamming, noise or vibrations caused by the waves. The crew will get complete rest between shifts.

Ship history

Contracted on 31 July 2018. The vessel will support the maintenance work of GE Renewable Energy at the German wind farm Merkur Offshore.The project has been developed in cooperation with WINDEA Offshore, which is the Bernhard Schulte’s affiliate for offshore wind projects. The vessel is Ulstein's third offshore wind vessel for Bernhard Schulte, the two first being Windea La Cour and Windea Leibniz.

Contracted: 31 July 2018
Steel cutting: 10 September 2018
Keel laying: 14 November 2018
Start-up outfitting Ulstein Verft: End September 2019
Tow-in to dock hall Ulstein Verft: 8 December 2019
Float-out to outer dock: 26 January 2020
Vessel name revealed: 2 March 2020
Sea trial: March 2020
Delivery: June 2020

Building a battery hybrid vessel of the offshore wind industry

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