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Siemens Energy has been appointed preferred bidder to deliver two major HVDC converter stations for the UK\u2019s 2GW Eastern Green Link 4 subsea power cable. The project will connect Scotland\u2019s renewable energy to England via a 530km cable, supporting the nation\u2019s transition to net zero and enhancing grid resilience by 2033.<\/p>\n
National Grid Electricity Transmission and SP Energy Networks have chosen Siemens Energy as the preferred bidder to deliver two high voltage direct current (HVDC) converter stations as part of the Eastern Green Link 4 (EGL4) project, marking a pivotal move toward expanding the UK’s electricity transmission infrastructure. EGL4 is an ambitious 2GW subsea electricity link, designed to transport clean energy generated primarily in Scotland to demand centres in England via a 530km subsea cable, connecting Fife to West Norfolk. This new ‘superhighway’ of power aims to significantly increase capacity and energy security, facilitating the UK’s transition to a more sustainable energy future.<\/p>\n
The selection of Siemens Energy followed a rigorous competitive procurement process and is a strategic step toward the full contract award, anticipated as the project advances through key planning milestones. Construction is scheduled to commence in 2029, with EGL4 becoming operational by 2033. This timeline aligns with the broader national agenda to bolster the electricity grid capacity, especially as Scotland continues to expand its offshore and onshore wind generation\u2014a resource that currently outstrips existing transmission capabilities. <\/p>\n
National Grid and SP Energy Networks highlight that subsea, long-distance, bi-directional links like EGL4 are essential in securing the UK\u2019s energy independence and affordability by enabling the transport of renewable energy domestically, thus reducing reliance on expensive fossil fuel imports. EGL4 is among five proposed subsea interconnectors between Scotland and England, collectively capable of delivering power to up to 10 million homes, reinforcing the critical role such infrastructure will play in meeting the UK\u2019s ambitious net zero targets.<\/p>\n
James Goode, project director for EGL4 at National Grid, noted that reaching the preferred bidder stage exemplifies the project’s progress, describing Siemens Energy as a vital partner due to their expertise in HVDC converter station delivery. Similarly, Iain Adams, deputy project director and head of Converter Delivery for EGL4 at SP Energy Networks, emphasised the strategic importance of this east coast link in improving network resilience, reducing constraints, and supporting economic growth. He also welcomed Siemens Energy’s participation, highlighting their proven capability in similar grid enhancement projects.<\/p>\n
This collaboration builds on Siemens Energy\u2019s recent inclusion in National Grid\u2019s \u00a359 billion HVDC supply chain framework, underscoring its strengthened position in the UK\u2019s energy infrastructure sector. The company views EGL4 as a critical investment in grid infrastructure to meet the growing electrification demand and cleaner energy goals. Mark Pilling, Siemens Energy\u2019s vice president for Grid Solutions Europe, remarked that their technological expertise will be key in supporting National Grid and SP Energy Networks’ efforts to upgrade and expand the UK\u2019s power network.<\/p>\n
In context, this development complements other major HVDC projects underway or planned in the UK, including the Sea Link project connecting Suffolk and Kent. The progress of EGL4 fits within a broader strategic push, with other subsea links like the Eastern Green Link 1 recently awarding contracts to different industry consortia to deliver further HVDC infrastructure, evidencing a multi-pronged approach to enhancing the electricity grid.<\/p>\n
Meanwhile, SSEN Transmission is investing over \u00a310 billion in network upgrades, focusing on the north of Scotland to integrate renewable generation projects, a part of the wider \u2018Pathway to 2030\u2019 programme. This illustrates the comprehensive national effort encompassing multiple transmission owners aimed at accommodating the rapid growth in renewable energy generation and facilitating the UK\u2019s net zero ambitions.<\/p>\n
The public consultation on EGL4\u2019s routing and environmental considerations has recently reached its second phase, with feedback being actively integrated into the project\u2019s development plans. National Grid anticipates submitting the planning application in Scotland by late summer 2025, followed by the development consent application in England in 2026, reflecting a methodical approach to addressing regulatory and community considerations alongside technical delivery.<\/p>\n
Overall, the preferred bidder appointment of Siemens Energy for EGL4 marks a significant milestone in the UK\u2019s energy infrastructure evolution, spotlighting an integrated approach to leveraging advanced HVDC technology and cross-border collaboration to enhance national energy security and sustainability.<\/p>\n