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VBMS preparing for Dudgeon export cable installation

By: Tom Russell 02/02/2016 Kingfisher Information Service, edited by 4C Offshore

General Turbines Windfarms

VBMS will be carrying out a Pre-Lay Grapnel Run (PLGR) operation as part of the preparations for the installation of the export and array cables for the Dudgeon Offshore Wind Farm.

According to Kis-Orca, the PLGR involves the vessel Anna-B towing a grapnel train arrangement over the seabed. The grapnel wire pulling the grapnel train will have a length of at least 4-5 times the water depth.

The vessel follows the cable route to hook in and recover all small debris like lost fishing nets, ropes and wires from the seabed, following the centre line of the planned export cable route with a tolerance of 10m to both sides of the planned export cable route, giving a 20m corridor. This work is done in order to clear the route prior to the installation of the export cable.

The Anna-B will arrive on location at or around 9th February 2016. The vessel will be working in the area for an expected duration of maximum 28 days.

The 402MW Dudgeon array will cover a 55 km² area of sea with its 67 Siemens SWT-6.0-154 offshore wind turbines. The project saw it's Final Investment decision in July 2014 with onshore work kicking off in March the following year. The project is expected to be generating power in Q1 2017 with full commissioning no later than December 2017.

The projects substation (See image) is currently underway at Sembmarine SLP's yard in lowestoft, the home of 4C Offshore. The company recently ordered a topside crane for the structure.

For more information about the project please follow the links provided. Alternatively, you can view the project using our interactive map.

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VBMS preparing for Dudgeon export cable installation

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