• Western HVDC link: A joint venture with ScottishPower Transmission to help bring renewable energy from Scotland to homes and businesses in Wales and England.
    • Project description

    • National Grid and ScottishPower Transmission have come together in a joint venture to build the Western Link, a £1 billion project which will help bring renewable energy from Scotland to homes and businesses in Wales and England. The construction contract has been awarded to a consortium of Prysmian Group and Siemens.

      The Western Link project includes direct current subsea and underground cables, incorporating a converter station at each end of the link to change the electricity from direct current to alternating current to enable it to be used within the existing electricity transmission system.

      The project can be divided into five sections:

      1. A converter station at Hunterston, North Ayrshire.
      2. Approximately 4km of high voltage direct current cable to a 'landfall', where the subsea cable comes ashore at Ardneil Bay.
      3. A subsea marine cable approximately 385km long from Ardneil Bay to Leasowe on the Wirral peninsula.
      4. An underground high voltage direct current cable of approximately 33km through the Wirral peninsula.
      5. A converter station in Deeside, Flintshire and alternating current cables under the River Dee connecting the Western Link to National Grid's substation in Connah's Quay.
    • Latest update

    • Converter stations and underground land cables: Construction of converter stations and installation of the land cables are well under way.

      Marine cable: A section of shallow-water cable has been brought ashore at Leasowe, Wirral. Work started in 2015 to lay the deep sea cable in the Irish Sea.