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Offshore Turbines to be linked to National Grid | BUILDING MAGAZINE

Offshore Turbines to be linked to National Grid

The Sofia and Dogger Bank C offshore wind energy project is to have onshore civil works designed and built. J.Murphy & Sons have been selected for this project.

Murphy are to connect cable ducts coming out of the North Sea to high voltage, direct current (HVDC) onshore converter stations.

More than 195km off the northeast coast of England both the Sofia offshore wind farm and Dogger Bank C are situated on Dogger Bank. Their export cables come to shore in Teesside, between Redcar and Marske-by-the-sea.

Although owned by different companies, Sofia is 100% owned by RWE, and Dogger Bank Wind Farm is a joint venture between SSE Renewables, Equinor and Eni, the developers are working at the site of their adjoining converter stations and along the shared onshore cable routes.

Running 7km to a new converter station – one for each project – now under construction, to the northeast of Lazenby, the projects offshore HVDC export cables will connect to onshore cables. Both projects will have a further 2km of HVAC cables to transport power to the existing National Grid Substation at Lackenby, where it will enter the national grid.

Murphy are to install onshore cable ducts that connect the landfall site in Redcar to the HVDC onshore converter stations.

The main civils works are to begin in March 2022 with completion planned for the end of 2024.

Murphy has worked on civils and cable installations on the Triton Knoll, Hornsea Project One and Beatrice wind farms during the past few years.

Matthew Swanwick, Sofia project director said: “The appointment of Murphy marks a significant milestone and the start of the cable route civils works will signal a new phase of the onshore construction. We look forward to building on RWE’s positive working relationship with Murphy and look forward to the ongoing co-operation with Dogger Bank C and to the continued good relationships with our stakeholders and the wider community”.