Nexans Subsea Operations has placed an order with Ulstein Verft in Norway for construction of a large, DP3 cable-lay vessel.
The ST-297 design vessel, designed by fellow Norwegian company Skipsteknisk, will be outfitted for power cable-laying, including bundle laying, cable jointing and repair and cable system protection and trenching. Ulstein Verft will construct the vessel and prepare it for the topside equipment.
The design has been developed for operation in rough weather and has high levels of manoeuvrability and stationkeeping.
The vessel will have a turntable with a cable capacity of 10,000 tonnes. A fibre optic basket will be capable of holding 450 tonnes. The vessel will be 149.9 m long with a deadweight of 17,000 tonnes and accommodate 90 people.
In August 2017, Nexans placed an order for the cable-lay vessel at Uljanik shipyard in Croatia, but financial issues at the yard meant that it could not execute the project, which will now be undertaken by Ulstein