The new ship is 90 metres in length and 28 metres wide and was specifically built for laying high voltage cables at sea, for example from shore to offshore windmill parks. It is unique in its capabilities, because it is able to maintain its position by means of propulsion (dynamic positioning), as well as anchors. Furthermore, it can dry out on the shallows and is consequently suited for offshore operations (deep water) as well as near-shore operations (shallow water).
The existing fleet of cable installation ships was primarily built for deep water operations and is not suitable for bringing cables to land. These ships are also unsuitable for operating in the neighbourhood of the many sandbanks found in Northwest Europe. It is precisely these sites that are being selected for the construction of offshore windmill parks. Furthermore, the ‘Stemat Spirit' is not only capable of laying cables on the sea bottom; it is also capable of burying them using a cable tackle plough, for example.
The Stemat Spirit is equipped for carrying out various types of projects, such as the installation of export cables to connect offshore windmill parks with the onshore power grid, array cables that interconnect the individual cables of offshore windmill parks, interconnectors (subsea cables that connect the power grids of different countries) and the repair and maintenance of existing cables.
In the future, the ship can also be deployed for the repair and maintenance of existing cables and for the installation of undersea cables for the new generation of green power that uses technology based on tides or waves.
All photos were taken by Carl Kramer.