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National Grid and SP Energy Networks select a consortium of GE Vernova and MYTILINEOS

4C Offshore | Mark Casey
By: Mark Casey 13/09/2023 National Grid
National Grid Seastack

SP Transmission (SPT) and National Grid Electricity Transmission (NGET) have reached another significant milestone in the development of a new subsea electricity superhighway by selecting GE Vernova’s Grid Solutions business and MYTILINEOS as preferred suppliers for the project’s two required HVDC converter stations.

GE Vernova is partnering with MYTILINEOS to provide the engineering works and technology for the HVDC convertor stations which form the terminals for the HVDC cable and convert the direct current to the alternating current used in the onshore transmission network.

This latest milestone is another significant step and follows on from the recent announcement of Prysmian Group being selected as the exclusive preferred bidder for the HVDC cabling contract.

The HVDC cable system is approximately 190km in length with converter stations at either end to connect it into the existing transmission network infrastructure.

HVDC technology provides the most efficient and reliable means of transmitting large amounts of power over long distances subsea.

Minister for Nuclear and Networks, Andrew Bowie said: “We have a world-class renewables sector that help us power Britain from Britain with reliable, clean, and affordable energy for families and businesses.“

“As the consortium leader, we are delighted to be chosen as a preferred supplier together with our partner MYTILINEOS in the development of a new subsea electricity superhighway, the Eastern Green Link 1 (EGL1) project,” said Philippe Piron, CEO at GE Vernova’s Grid Solutions business

To access more information on subsea cables for offshore wind and interconnector projects, as well as transmission intelligence, click here.


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