Firm to design and build two 7km cable ducts for Dogger Bank wind farms

Murphy and Sons has won a major engineering job for two of the world’s biggest offshore wind farm projects.

The infrastructure specialist will design and build the onshore cable ducts for the 1.4 gigawatt Sofia and 1.2 gigawatt Dogger Bank C wind farms.

Located in the North Sea nearly 200km from shore, the two projects will generate enough power to supply all of the North East’s annual electricity needs when complete.

Cables running from the farms’ wind turbines will come to shore in Teesside and run for 7km over land to a pair of adjacent converter stations, which are currently under construction.

offshore wind 1

Source: Shutterstock

Murphy will install cable ducts for two of the world’s largest offshore wind projects

A further 2km of cables will then run from the stations to the existing National Grid substation at Lackenby, where the power will then enter the national grid.

Murphy’s job, which is understood to be worth up to £40m, will consist of detailed engineering and design of the works, ecological management, civil infrastructure installation and engineering and installation of crossings.

The main works will get started next month and run through to the end of 2024.

Dogger Bank C, which has a development area of around 560 sq km, is the third phase of the giant Dogger Bank project which is a joint venture between SSE Renewables, Equinor and Eni. Initial onshore cabling work for Dogger Bank A and B has already started construction.

Sofia wind farm, which will be built across a 593sq km site close to the Dogger Bank schemes, is wholly owned by RWE. 

Although they are owned by different companies, the developers are working jointly at the site of their adjacent converter stations and along the shared onshore cable route.