The 1.4 gigawatt (GW) Sofia Offshore Wind Farm, sited on the shallow central area of the North Sea known as Dogger Bank, is the largest offshore wind project in RWE's current portfolio.
Under construction since 2021, the project is located 195 km from the nearest point on the UK’s North East coast on a site of 593 square kilometres. It has a single offshore converter platform, with the electricity generated transported from there, via a high voltage direct current export cable. The cable runs 220 kilometres from the centre of the array to Redcar, Teesside, where a new onshore converter station has been constructed. Power generated by the project will enter the national grid at the existing National Grid substation in Lackenby, Teesside, seven kilometres inland. The project will be operated out of the RWE Grimsby Hub, which was officially inaugurated in July 2025.
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Find out more about the Sofia Offshore Wind Farm. At 1.4GW it is one of the world’s largest single offshore wind farms, and at 195 kilometres from the North East coast, also one of the farthest from shore.
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The project's official construction began in mid-2021 with the onshore enabling works at the site of the converter station in Teesside. Construction of the converter station and export cable route started in early 2022 and offshore works began in 2023.
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The Sofia project team is engaging with communities and businesses all along the north east coast of England, from Blyth to Grimsby. Our education outreach programme now operates at every level of the education system, and our Community Construction Fund has supported dozens of local initiatives.
These notices provide essential, up-to-date data to mariners likely to be in the vicinity of offshore activity related to Sofia Offshore Wind Farm. They feature safety critical navigational information for all mariners including those from the fisheries sector, shipping and recreational sailing.
