BAM UK & Ireland has been selected by National Grid Electricity Transmission as construction partner for the southern converter station on Eastern Green Link 3 (EGL3), progressing one of the UK's most significant electricity network upgrades.

EGL3 is a proposed 2 GW high-voltage direct current link between Peterhead in Aberdeenshire and Walpole in Norfolk, co-developed by SSEN Transmission and National Grid Electricity Transmission. Using a combination of subsea and underground cables, the link will move renewable electricity generated in Scotland to high-demand areas in England, easing pressure on the existing grid, creating an electricity superhighway and enhancing Britain's energy security. Once operational, it is expected to carry enough power for around two million homes.

The new award covers works at the southern converter station in Walpole, Norfolk, and follows BAM's earlier appointment on the northern converter station near Peterhead. It adds to BAM UK & Ireland's growing portfolio in energy transmission, including Eastern Green Link 2, where it is partnering with SSEN Transmission, National Grid and Hitachi Energy to build converter stations at Peterhead and Drax in North Yorkshire.

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Huw Jones, Executive Director – Infrastructure at BAM UK & Ireland, said: "We're not just building energy infrastructure. We're building the connections that will power Britain's future.

"With BAM appointed to civil engineering works at both ends of EGL3, alongside our work on EGL2, we're helping transform Britain's electricity network and turn the UK's clean energy ambitions into reality."

Mark Brackley, Project Director for Eastern Green Link 3, said: "Awarding this contract is an important step forward for Eastern Green Link 3 and the wider programme of network investment taking place across Great Britain.

"By increasing capacity between Scotland and England, EGL3 will help reduce constraints on the electricity network, allowing more renewable power to be transported from where it is generated to where it is needed. This will be vital to building a modern electricity network that can support economic growth and meet future demand.

"We look forward to working closely with BAM UK & Ireland as we move into the next phase of delivery."

Mott MacDonald will support BAM UK & Ireland as lead civil and structural designer. Claudio Tassistro, Managing Director of Energy, Europe at Mott MacDonald, said: "Building on our established partnership with BAM and our involvement in the development of EGL3 to date, this appointment provides continuity at a critical stage of the project. Our teams bring a shared understanding of the technical and delivery challenges involved, alongside extensive experience of HVDC and converter station projects across the UK. Together, we look forward to supporting National Grid in progressing the southern converter station design and helping deliver infrastructure that will connect more renewable energy to homes and businesses."

The contract forms part of The Great Grid Upgrade, National Grid's wider programme to reinforce the electricity system. By boosting capacity between Scotland and England, EGL3 will help cut network constraints, connect more low-carbon generation and meet rising demand, while supporting long-term investment in UK skills and the supply chain.