McLaughlin & Harvey and National Grid celebrate steel signing milestone at the new Electricity Transmission Control Centre National Grid has appointed McLaughlin & Harvey as main contractor to build its brand new, state-of-the-art control centre that will reinforce network resilience, uphold National Grid Electricity Transmission’s (NGET) world-class reliability standards and power the clean energy transition. The secure, sustainable facility, called the Electricity Transmission Control Centre (ETCC), is being built on the site of National Grid’s decommissioned, former 275 kilovolt substation at Hams Hall in the Midlands. Construction of the new control centre, which will incorporate multiple control functions into a single, collaborative space, is a key part of National Grid’s investment to increase the network’s capacity and make it easier to connect the energy needed to power the clean energy transition. Britain’s electricity transmission system is expanding at a rapid pace to support decarbonisation and meet energy security needs. As new sources of electricity generation come online and demand patterns change, management of the growing electricity network is becoming more complex, driving the need for the modern, purpose-built new facility. Once built and fully operational, the ETCC will work in parallel with National Grid’s existing Transmission Network Control Centre (TNCC), and will operate 24/7 365 days a year to control the operations of the high-voltage electricity transmission system. A brownfield site, Hams Hall has powered the Midlands for a century and tells the story of Great Britain’s energy transition. Having previously housed three coal power stations it will now be home to the transmission network’s nerve centre, responsible for ensuring that clean power can travel the length and breadth of England and Wales. The ETCC will also support National Grid in attracting and retaining the highly skilled staff needed to operate the increasingly complex network with hundreds of skilled jobs created both during construction and in engineering roles based at the facility. On Monday, 15th September, Paul Griffen, Managing Director at McLaughlin & Harvey, joined Jon Davies, Director of Network Operations and Intelligence at National Grid, to mark the steelwork commencement milestone. To commemorate the occasion, both Paul and Jon signed a steel beam, symbolising this important step forward in the construction process. Paul Griffen, Managing Director at McLaughlin & Harvey, said: “It’s great to be at the site to celebrate the steel signing milestone with the project teams involved. We are committed to building this essential facility in collaboration with National Grid to enable the future energy needs of the UK to be met. Complex construction projects like this one highlight the capabilities of our talented employees to deliver outstanding results, not just in energy, but across various sectors.” Jon Davies, Director of Network Operations and Intelligence at National Grid said: “The development of a brand-new Electricity Transmission Control Centre marks an exciting new age for managing the complex and rapidly growing transmission network. Driven by a need to modernise and adapt to the country’s changing energy needs, the facility will futureproof our grid’s resilience and house the talented people responsible for operating our world-class transmission network for decades to come.” McLaughlin & Harvey officially began construction in April 2025 with initial preparatory groundworks, followed by the commencement of piling in July, which saw the physical foundations of the new building being laid.  The first set of steel structures for the facility are being installed in September 2025, with the new network control room expected to go-live in 2028. Construction of the building will leave other lasting positive benefits on the local community, by redeveloping a previously unused, brownfield site, minimising embodied carbon throughout construction, enhancing biodiversity at the site by at least 10% and supporting STEM learning and development by providing education opportunities on electricity and the future energy network. In addition, National Grid’s Community Grant Programme (CGP) will offer funds of up to £20,000 for community organisations and charities in the local area. Building, Design & Construction Magazine | The Choice of Industry Professionals

Balfour Beatty has just announces that it has been awarded two places on National Grid’s c. £59 billion High Voltage Direct Current (HVDC) supply chain framework. The company is one of 19 suppliers appointed to the framework which covers a period of five years, with an option for a three-year extension. As the only company appointed to two Lots on the framework, Balfour Beatty will deliver both the civil engineering works for future converter station schemes, as well as the associated onshore underground cabling works. Contracts, including defined scope and value of works, are expected to be awarded in 2026 and throughout the duration of the framework. The HVDC supply chain framework aims to establish long-term partnerships for both ongoing and future energy projects to help connect cleaner, more affordable energy to homes and businesses across England and Wales. As the largest power transmission provider in the UK, Balfour Beatty’s appointment to the HVDC supply chain framework builds on its long and proud history of working with National Grid. Most recently, the company successfully completed the Viking Link Interconnector Project having installed 68 kilometers of high voltage cabling across Lincolnshire; connecting Denmark to Great Britain at National Grid’s Bicker Fen substation in Boston, Lincolnshire. Stephen Tarr, Divisional CEO and Group Sector Lead – UK Energy at Balfour Beatty, said: “Our unique end-to-end capabilities and our extensive civil engineering knowledge makes us ideally positioned to secure the power supply to millions of homes and businesses across England and Wales. “We look forward to working closely and collaboratively with National Grid and our partners on the High Voltage Direct Current supply chain framework, as we build on our long-standing relationship and our history of successful delivery.” Zac Richardson, Chief Engineer and Offshore Delivery Director of Strategic Infrastructure at National Grid, said: “This marks a major step forward in delivering the UK’s future energy network. This investment not only underpins the transition to a more secure, independent and low-carbon energy future, but will also support tens of thousands of UK jobs, boost regional supply chains and strengthen our construction and engineering sectors. By building strategic, long-term partnerships with leading UK-based contractors, we’re ensuring the UK is ready to meet the growing demand for electricity with a resilient and modern network.” Building, Design & Construction Magazine | The Choice of Industry Professionals

New facilities will build resilience into UK’s energy systems Costain, the infrastructure solutions company, has been chosen by EnergyPathways PLC (EPP) to study onshore location sites for EPP’s flagship integrated energy storage and decarbonisation project. Marram Energy Storage Hub (MESH) is expected to be the UK’s largest integrated energy storage facility, planned to be approximately 15km off the coast of Blackpool. It is designed to support the UK government’s energy strategy for transitioning to clean power by providing long-duration energy storage solutions, combining natural gas, hydrogen, and compressed air technologies. Costain’s front-end engineering and design experts will initially compare possible locations for the onshore process facilities and associated infrastructure. The study will assess the impact of location on connectivity to the gas and electricity networks, review the impact of site selection on construction cost and schedule, and consider the opportunities and risks in reuse of existing infrastructure. The planned MESH onshore facilities will support large-scale natural gas storage and production, compressed air Long Duration Energy Storage (LDES), hydrogen storage, clean hydrogen production, clean ammonia and graphite production, and flexible clean power generation. Grant Johnson, technical director at Costain, commented: “MESH is an ambitious, exciting project that will enhance the UK’s energy resilience, and enable more clean energy generation through large-scale energy storage. “We know just how important it is to make robust choices at the early stages of a project, and we are looking forward to helping EPP with site selection, using our experience in delivering energy storage infrastructure to inform decision-making on aspects such as constructability and sustainability.” Ben Clube, CEO at EnergyPathways said: “We are delighted to have entered into this engagement with Costain, a tier 1 UK-headquartered infrastructure company with extensive engineering knowledge and experience of the North-West region. “Costain’s expertise will be invaluable in optimising the location for the MESH onshore facilities. Costain also brings relevant experience across several important aspects of the MESH project, including salt cavern development and in emerging technologies in the context of the UK government energy policy settings. “This engagement continues the selection by EnergyPathways of world-class strategic partners with the expertise and experience to deliver a large-scale low-carbon integrated energy solution of national significance.” Once operational, MESH will enable natural gas storage in the depleted Marram reservoir, with subsequent development to include Hybrid Compressed Air Energy Storage (H-CAES), which will store energy from offshore wind in the region by compressing air into adjacent salt caverns.  The salt caverns will also be used to store green hydrogen, either derived as part of a decarbonised H‑CAES process or supplied via Project Union, the National Gas initiative that plans to repurpose and extend parts of the existing 5,000-mile gas transmission network to connect hydrogen production, hydrogen storage and industrial consumers. Costain has decades of experience in designing and delivering complex gas storage infrastructure, working across the full project lifecycle, from concept, investment support, project execution planning, front end design, and planning development, to consent, project delivery, and asset and operational support.  Building, Design & Construction Magazine | The Choice of Industry Professionals

Three-year contract will see Costain deliver engineering expertise to operations at the Kinneil Terminal in Scotland. Costain, the infrastructure solutions company, has secured a multimillion-pound engineering services contract with INEOS FPS. The contract, covering a minimum of three years, will see Costain deploy its extensive engineering expertise to support the optimisation and utilisation of operations at the Kinneil Terminal – a critical piece of the UK’s energy infrastructure. Costain has already been providing end-to-end engineering services at the Kinneil Terminal for more than ten years, having delivered multidisciplinary front-end studies through to detailed design engineering and procurement services for both onshore and offshore assets since 2014. Costain will service the contract from its new Aberdeen office where it continues to serve a growing customer base in the energy sector in Scotland and across the UK.   Sean Close, energy resilience director at Costain, commented:“We’ll use our engineering expertise and long record of predictable best-in-class delivery to optimise the performance of Kinneil Terminal. This is critical national infrastructure, and our work will build vital resilience into the UK’s energy system with a safer, more efficient and more reliable terminal. “With our strong and growing presence in the region this contract marks the next chapter in our productive and collaborative relationship with INEOS FPS.” Costain’s energy sector delivers innovation, engineering and construction excellence to solve complex problems facing the UK’s energy infrastructure. It has a long track record of delivering infrastructure solutions in Scotland, including front end studies, asset maintenance and engineering, procurement and construction (EPC) contracts. Costain has also provided technical consultancy services to Storegga (formerly Pale Blue Dot Energy) in support of the Acorn carbon capture and storage project.  Building, Design & Construction Magazine | The Choice of Industry Professionals

National Grid has unveiled a major new initiative to overhaul how it works with suppliers, aiming to fast-track the delivery of £8 billion in substation infrastructure across England and Wales and strengthen the UK’s clean energy transition. The initiative, known as the Electricity Transmission Partnership (ETP), marks a transformative shift toward long-term, regionally focused collaboration with suppliers. It replaces traditional short-term contracting with a performance-driven model that grants exclusive regional rights to trusted delivery partners, encouraging investment in local skills and supply chain resilience. Under the ETP, National Grid plans to deliver around 130 substation projects over the next six years as part of its broader RIIO-T3 investment programme, which proposes up to £35 billion in upgrades to the UK’s transmission network by March 2031. The ETP alone will account for approximately £8 billion of that investment. In July, National Grid awarded regional delivery partner status to key suppliers, also allocating an initial £1.3 billion in exclusive substation work, with contracts to be finalised at a later date. The regional partners and their respective areas are: These firms will have first refusal on future substation projects in their regions, providing commercial certainty to scale up their capacity and workforce. Two additional national partners, Linxon and Burns & McDonnell, will support delivery of substation projects that fall outside regional allocations. The ETP is designed not just to expedite project delivery, but also to drive up quality and sustainability. Suppliers will be rewarded based on long-term performance, with National Grid aiming to build enduring relationships that encourage innovation, efficiency, and local investment. The new model complements other key initiatives in National Grid’s evolving infrastructure strategy, including the Great Grid Partnership (GGP) and the rollout of a high voltage direct current (HVDC) supply chain framework. Together, these programmes are intended to increase capacity, resilience, and flexibility across the UK’s transmission system. National Grid said the ETP model could eventually be expanded beyond substations to cover a wider range of network infrastructure, reflecting a broader commitment to transforming how large-scale energy projects are delivered across the country. This approach comes at a critical time for the UK’s energy landscape, as the nation accelerates its shift to renewables and prepares the grid for an era of electrification and decarbonisation. Building, Design & Construction Magazine | The Choice of Industry Professionals