Prysmian has secured a £2bn ($2.7bn) contract to provide cable for the Eastern Green Link 4 (EGL4) project, a subsea electricity connection being jointly developed by National Grid Electricity Transmission and SP Energy Networks.
The agreement covers more than 640km of high voltage direct current (HVDC) cable, including 530km to be laid under the sea and more than 116km underground.
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The link will connect Fife in Scotland with Norfolk in England and is designed to transmit up to 2GW of electricity.
This project is scheduled for completion in 2033, at which point it will be able to transmit clean, renewable energy, enough to supply more than 1.5 million homes.
EGL4 is part of a broader initiative to expand Britain’s electricity transmission capacity, playing a crucial role in addressing climate change.
By using HVDC technology, the project seeks to improve efficiency over long-distance transmission and support integration of additional power sources into the grid.
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By GlobalDataNational Grid project director James Goode said: “Eastern Green Link 4 is a critical part of the significant reinforcement needed along the east coast to support Britain’s future energy system. By investing in high-capacity HVDC infrastructure, we can move large volumes of clean electricity efficiently and at scale.
“Appointing Prysmian as cable supplier builds on their established experience with National Grid working on major transmission projects. It supports our focus on delivering this important connection to support home-grown, cleaner, secure energy from more affordable sources to consumers for decades to come.”
EGL4 forms one part of a joint venture comprising National Grid Electricity Transmission and SP Energy Networks, which also includes another major east coast cable link.
EGL4 deputy project director Iain Adams said: “The project will help unlock capacity across the UK’s electricity grid, opening up space for more renewable energy to connect in and helping to reduce constraint costs for consumers.”
Prysmian is also contracted to deliver cabling for Eastern Green Link 1, a similar 2GW project connecting Torness in Scotland and Hawthorn Pit in England, where construction began last year.
Developers expect to submit planning applications for EGL4 in both Scotland and England during 2026.
Construction is set to commence in 2029, pending approval by the Secretary of State for Energy Security and Net Zero.
