Dogger Bank Wind Farm

SSE Renewables (40 per cent), Equinor (40 per cent), and Vårgrønn (20 per cent)
Contract value:

Capabilities:
Energy & renewables Energy project 2024

The project consisted of two phases of the world’s largest offshore wind farm, each with an installed capacity of up to 1.2 gigawatts.

2 2 .

Jones Bros was engaged to commence with preliminary design work for a fully ducted system for the installation of both high voltage DC (HVDC) and AC (HVAC) cables. This was in conjunction with further design activity.

Works included:

  • 12 access points / junctions off the highway network allowing access to the site
  • Three main site compounds and five satellite compounds
  • 32km of on-site temporary trackway to all access along the full length of the works corridor
  • New post and pre-construction land drainage
  • 46 crossing points over existing open ditch land drains and water courses
  • Horizontal direction drills at 34 crossing points
  • Joint bay design for both HVDC & HVAC circuits including link boxes and the landfall transition joint bay
  • Convertor station working platform
  • Early engagement with third party service assist operators including Network Rail, internal IDB, landowners, and agents

In addition to the offshore works, there were a number of other major activities undertaken to connect the renewable energy to the National Grid including:

  • Installation of 120km of HVDC cable from landfall near Ulrome across a 30km route though agricultural land
  • Construction of two DC to AC convertor stations
  • Installation of 24km of HVAC cable from the convertor station across a 2km route before terminating into the National Grid substation at Creyke Beck substation near Cottingham
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