At a Glance: Balfour Beatty lands Britain’s biggest substation job at Teesworks to underpin data centre and advanced manufacturing growth.
At a Glance: National Grid’s 2 GW Sea Link subsea connection between Kent and Suffolk wins development consent, with delivery into the next decade.
At a Glance: Mandatory 10% Biodiversity Net Gain now applies to major infrastructure schemes seeking Development Consent Orders in England.
At a Glance: Kier and BAM secure a £600m upgrade at Devonport’s 10 Dock as defence and nuclear workbanks expand.
At a Glance: The Autumn Budget’s £750bn pipeline and new data centre covenant frame a step-change in grid, decarbonisation and digital infrastructure demand.
Today’s update: the UK’s next wave of energy and digital infrastructure is crystallising through major grid reinforcement, subsea links and defence estates work, just as mandatory biodiversity rules and sustainable procurement expectations tighten. Large contractors, network owners and developers are moving early to position for a decade-long power network upgrade backed by the Budget’s £750bn infrastructure pipeline. Here’s what you need to know to stay ahead today.
Ongoing Stories
Following earlier coverage of the Autumn Budget’s £750bn infrastructure pipeline, today’s detail highlights targeted support for energy efficiency, a £120m ceramics decarbonisation scheme and a British Data Centre Covenant tying faster grid access to environmental standards, sharpening the policy focus on low-carbon delivery.
Returning to the theme of power network modernisation flagged this week, the formation of an industry group for the UK’s £181bn electricity network upgrade – with United Infrastructure, Balfour Beatty and M Group as founding members – marks contractors’ bid to shape how this long-term investment is scoped and procured.
Top 5 Headlines
🚆 National Grid’s 2 GW Sea Link subsea interconnector secures development consent
The UK Government has granted development consent for National Grid’s 138 km high-voltage subsea Sea Link between Kent and Suffolk, designed to move up to 2 GW of power between the regions. Construction is planned to begin in early 2027, with the link expected to be operational by 2031, despite environmental concerns in sensitive areas near Minster Marshes. The project is a major enabler for integrating new generation and reinforcing security of supply, creating a multi-year civils and marine opportunity along the east coast. (Source: Renewables Now)
🚆 Balfour Beatty to deliver UK’s largest electricity substation at Teesworks
Balfour Beatty has been confirmed to build the Teesside Node A substation at Teesworks, which will be Britain’s largest, initially providing 1.44 GW of capacity. Commissioning is expected by the end of 2029, with the scheme designed to support data centres, AI facilities and advanced manufacturing across the Teesside regeneration site. The project signals the scale of grid reinforcement now required to unlock energy-intensive digital and industrial investment in regional hubs. (Source: Construction Enquirer)
🏛️ Mandatory 10% Biodiversity Net Gain now in force for major infrastructure DCOs
From 2 November 2026, developers seeking Development Consent Orders for major infrastructure in England must demonstrate at least a 10% Biodiversity Net Gain, supported by biodiversity gain plans and formal calculations. The policy aims to ensure large schemes leave the natural environment in a measurably better state, embedding habitat creation and enhancement into project design and delivery. For promoters of NSIPs, this hardwires ecological uplift into the consenting risk profile, making early environmental strategy and data a critical part of programme and cost planning. (Source: DEFRA)
⚙️ Kier–BAM JV wins £600m Devonport dock upgrade package
A joint venture between Kier and BAM has secured a £600m contract from Babcock to upgrade and strengthen facilities at 10 Dock in Devonport for submarine maintenance. The works include dock wall strengthening, full dock floor replacement and installation of a new reinforced concrete base, progressing the scheme from early contractor involvement into main construction. The award underlines the growing volume and complexity of defence and nuclear-related infrastructure, offering sustained workload but with demanding delivery and security requirements. (Source: Construction Enquirer)
🌱 UK construction ramps up sustainable procurement and low-carbon steel use
New analysis points to rising adoption of environmental product declarations (EPDs) and sustainability criteria in UK steel and materials procurement, with low-carbon steel emerging as a pragmatic route to cut embodied carbon in infrastructure projects. This shift reflects supply-chain and client focus on reducing lifecycle emissions and evidencing performance against net zero targets. Contractors and designers will increasingly be expected to quantify embodied carbon and choose products on environmental as well as cost grounds, reshaping specifications and supplier relationships. (Source: Eurometal)
Also in the news
🚆 An industry group has been formed to represent contractors’ interests in the UK’s £181bn electricity network upgrade, with founders including United Infrastructure, Balfour Beatty and M Group, following M Group’s recent acquisition of high-voltage connections specialist HVSS. (Source: Construction News)
🏛️ The Autumn Budget reconfirms a £750bn infrastructure pipeline over 10 years, alongside measures such as a £120m ceramics decarbonisation scheme and support for energy efficiency, framing long-term demand across energy, industrial and retrofit programmes. (Source: BCIS)
🌱 The British Data Centre Covenant will link accelerated grid access and on-site generation for data centres to adherence to environmental standards, reinforcing ESG scrutiny on a rapidly expanding asset class. (Source: BCIS)
🌱 Implementation of mandatory Biodiversity Net Gain for major infrastructure is expected to drive demand for ecological consultants and nature-based solutions providers across the NSIP pipeline. (Source: DEFRA)
⚙️ The emergence of low-carbon steel as a preferred option in infrastructure schemes could influence UK and European steelmakers’ investment decisions in cleaner production technologies and EPD-backed product lines. (Source: Eurometal)
The Daily Build is written for people shaping the UK’s construction and infrastructure pipeline, from boardrooms to site offices. If this edition is useful, consider forwarding it to colleagues planning bids, investment cases or risk reviews this week.