Italian cable manufacturer Prysmian has secured a €2.3bn (US$2.7bn) contract to supply cables for the Eastern Green Link 4 (EGL4) project, a subsea electricity interconnector in the United Kingdom, jointly developed by UK’s National Grid Electricity Transmission and SP Energy Networks, the networks arm of Scottish Power, itself the UK subsidiary of Spain’s Iberdrola (Iberdrola press release, 02/02/2026)
The new link, with a capacity of 2 GW, will connect Fife in Scotland with Norfolk in England using high-voltage direct current (HVDC) technology. Planning applications for the project, developed by SP Energy Networks and National Grid Electricity Transmission, are expected to be submitted in Scotland and England throughout 2026. Subject to approval by the UK Secretary of State for Energy Security and Net Zero, construction is expected to begin in 2029, with the interconnector scheduled to be commissioned in 2033, the press release said.
SP Energy Networks and National Grid are also jointly developing Eastern Green Link 1, another 2 GW HVDC interconnector. Construction of EGL1 began in 2025 and will link Torness in Scotland with Hawthorne Pit in England by 2029.
ScottishPower will deliver two submarine HVDC links, Eastern Green Link 1 and Eastern Green Link 4, connecting Scotland and England along the east coast of the British Isles. In addition, the Western Link 2 project, a 2 GW subsea interconnector also being developed by SP Energy Networks and currently in the study phase, is planned to link Scotland and Wales via the west of the country.