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National Grid names contractors for £8bn substation drive

National Grid names contractors for £8bn substation drive

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https://www.theconstructionindex.co.uk/assets/news_articles/2025/07/1753955924_national-grid-sandford-substation–2–cropped.jpg
National Grid's 400kV Sandford substation, built as part of the Hinkley connection project
National Grid’s 400kV Sandford substation, built as part of the Hinkley connection project

Balfour Beatty, Burns & McDonnell, Linxon, Morgan Sindall Infrastructure, M Group Energy, Murphy and OTW (a joint venture of Omexom and Taylor Woodrow) have been chosen to deliver £8bn worth of substation infrastructure across England and Wales over the next five years for National Grid.

The Electricity Transmission Partnership (ETP) is a new way of working for National Grid, following on from the Great Grid Partnership it announced in May 2024.

The initiative awards regional exclusivity of substation work to ETP contractors based on how well they perform and their commitment to expanding their capacity. The aim is to strengthen the UK supply chain, encourage long term investment and support the development of local skills and capability, National Grid said.

Around 130 projects are expected to be procured through the ETP.

It also marks a major boost to National Grid’s RIIO-T3 investment plan, which proposes up to £35bn investment in the transmission network in England and Wales over the five years to March 2031, including to build new substations or upgrade existing ones.

Balfour Beatty has been allocated the northeast region, Morgan Sindall the northwest, Murphy southwest (region one) and London & southeast region, M Group Energy for southwest (region two) and OTW has the central west region

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The contractors will have first refusal of future substation work in the pipeline in their region.

Two national suppliers, Linxon and Burns & McDonnell, will support delivery of substation work that falls outside the scope of the regional partners’ portfolios.

The ETP complements other pioneering initiatives in National Grid’s evolving supply chain ecosystem, including the Great Grid Partnership (GGP) and a new high voltage direct current (HVDC) supply chain framework. Together, these programmes are designed to provide greater capacity and resilience across multiple infrastructure construction portfolios.

National Grid said that the ETP model has the potential to be expanded beyond substations in future to include other network infrastructure.

Alice Delahunty, president of National Grid Electricity Transmission, said: “Our Electricity Transmission Partnership marks a bold shift in how we deliver vital electricity infrastructure. By adopting a regional, long term approach, we’re giving our supply chain the certainty to invest in people, skills and innovation. It’s a key step in turning our RIIO-T3 investment ambitions into action and building a resilient grid to support Britain’s clean energy future.”

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