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DEME’s cable-laying vessel (CLV) Viking Neptun is scheduled to start installing the first inter-array cables at the Dogger Bank C offshore wind farm site in the UK on or around 7 September.
The vessel will lay the inter-array cable onto the seabed, where the cable will remain exposed until trenching is performed, which is scheduled to be carried out in September/October, according to a recently issued Notice to Mariners.
Viking Neptun will be assisted by the walk-to-work (W2W) vessel Norside Cetus for the deployment of cable pull-in teams.
DEME Offshore won the engineering, procurement, construction and installation (EPCI) contract for the inter-array cables at the Dogger Bank C offshore wind farm in 2021, after previously being awarded the same work on Dogger Bank A and B.
For the third phase of the UK’s Dogger Bank Wind Farm, DEME’s scope of work includes the supply of approximately 250 kilometres of 66 kV inter-array cables and all related accessories, as well as their installation.
The cables are supplied by the Greece-based subsea cable manufacturer Hellenic Cables, under a contract the company signed with DEME in 2022 .
All inter-array cables at the first 1.2 GW Dogger Bank Wind Farm phase, Dogger Bank A, were installed last year , while the work on Dogger Bank B inter-array connections is still underway with post-lay burial and testing and termination.
Construction work on Dogger Bank C started earlier this year with the installation of the first monopiles by Seaway7’s Seaway Strashnov.