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Offshore construction

Offshore cabling

Following the installation of the wind turbine foundations the offshore subsea cables will be installed.  There are two types of subsea cables - 'export cables' and 'inter-array cables'.

The export cables take the electricity from the offshore substations to the landfall point at Carnoustie.

The inter-array cables form a network within the wind farm site and take the electricity generated by the wind turbines to the offshore substations.

In both cases, the cables are installed by specialist vessels following careful survey and route clearance.  Once laid, the cables are either buried under the seabed surface or are covered by boulders to protect them from accidental snagging and breakage.

The manufacture and installation of the offshore cabling provides significant employment and business opportunity.

Offshore substations

The offshore substations will essentially be the backbone of the wind farm, taking the electricity generated by the turbines and converting it to the voltage required for onward transmission to the onshore substation at Tealing.

Turbine installation

The installation of the turbines will require the use of specialist heavy lifting vessels and other support vessels which is expected to include local fishing vessels who will be employed as guard vessels throughout the offshore construction phase.

Image : Turbine installation underway at the Beatrice Offshore Wind Farm (C) BOWL

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