Projectdetails

General

For the Veja Mate offshore wind farm project, MV Trina has been contracted to transport transition pieces (TP) from the construction site in Aalborg, Denmark, to Eemshaven, the Netherlands. The wind farm is located in the German North Sea. It consists of 67 wind turbines, each with a capacity of six megawatts and a rotor diameter of 154 metres.

In twelve consecutive voyages, the MV Trina transported 67 transition pieces together with the associated platforms and anode cages. For this long-term order, the type 176 vessel was mobilised at Ostseestaal in Stralsund. All hatch covers and tween decks were unloaded for the 22-metre high cargo. Special grids (grillages) were welded to the floor of the hold to ensure stable and safe positioning of the TP's

The main objectives of the design of the transition piece substructure are to ensure the following:

Safe and absolutely reliable functioning during loading, transport and unloading of the Transition Pieces.
Safety of the personnel, during the entire process
 

Scope of Work

Preparation of workshop drawings
Delivery of the required materials for the substructures
Fabrication of the substructures including clamps and horizontal stoppers according to DNV GL guidelines
Manufacture of the guides
Delivery of all documents required for certification
Delivery of the six substructures, guides and all required loose parts certified and ready for use ex works
Supply of compensation plates to allow for tolerances of the TP sea fastening flange, the TP substructure
Provision of a spare parts package for reliable operation (screws, clamps, clamping bolts, bearing plates, etc.)