Our services

Made for offshore wind

Jack-up vessels

ZITON provides specially designed vessels that bring flexibility and efficiency to replacing major components on offshore wind turbines. With the average offshore wind turbine size predicted to reach 6 MW by 2020,  vessels need to be designed for an even more demanding future.

We have the industry’s first self-propelled, heavy-lift barge with a permanently mounted, telescopic crane capable of working at a height of 100 metres – J/U WIND.

Furthermore, we have three other purpose-built jack-up vessels – J/U WIND SERVER, J/U WIND PIONEER, and J/U WIND ENTERPRISE –  capable of servicing even larger turbines in deeper waters, higher winds and on a variety of seabeds.

WIND ENTERPRISE is capable of servicing the largest currently installed turbines and the next generation of turbines.

All of our experience and know-how gained from service and major component replacements on more than 400 wind turbines has influenced the design and manufacture of these vessels.

The combination of these vessels and our insight gives us unparalleled flexibility to offer our customers the most efficient process.

Offshore expertise from ZITON Contractors


ZITON supplies skilled and experienced WTG technicians for all WTG brands as well as managers and lifting supervisors.

All technicians come with a proven track record and the required level of training.

Our supervisors and senior technicians at ZITON Contractors can provide professional, timely assistance for all platforms in the offshore industry:

Siemens Gamesa Renewable Energy: G2, G3, G4

MHI Vestas Offshore Wind: V66, V80, V90, V112

Our contractors can assist with all lifting equipment for all main components on all platforms.

We provide all necessary equipment, including hand tools, special tools, and tension and torque tools.

Plan your O&M future with us

O&M planning

Effective and early planning of operations and maintenance processes can help reduce lost power production by up to 60 per cent.

Our O&M professionals bring thousands of hours of practical experience in all aspects of O&M, from crew transfer to component replacement to health and safety measures.

Ask us to help you save time and money in planning your O&M strategy and processes. In addition to long-term strategic planning, we can help with:
•  site-specific assessments
•  leg penetration analyses
•  maritime project management
•  lift planning and supervision
We also manage Provision of Appointed Persons, seafastening design and MWS approvals.

Not a blade is left unturned when you plan your O&M future with us.

Expanding our business into decommissioning and installation support services


For offshore wind decommissioning operations, we offer tailor-made solutions for removal of met masts, wind turbines and foundations.
All operations are executed with a high focus on safety, cost efficiency and as little environmental impact as possible.
Combined with the experience and skills of the ZITON organisation, our purpose-built vessels offer a clear edge to the available alternatives.

Our team handles the whole process from planning of the safest and most sustainable decommissioning method to recycling of the removed components.

ZITON also offers offshore installation support services such as commissioning of turbines and offshore substations.

Using jack-up vessels for installation support has a number of advantages including: access to cranes, a stable platform, highest safety and comfort of living quarters, swift repositioning by use of vessel’s DP system, large deck space for storage, workshop and stores facilities below deck.

ZITON case stories

Scroby Sands

We exchanged three gearboxes at the Scroby Sands wind farm as E.ON launched its new maintenance strategy.

Greater Gabbard

We removed meteorological masts for SSE Renewables – cost effectively and on time.


A framework agreement with ZITON minimises your energy production loss when you need heavy lift services.