Major Projects Partnership - Preliminary Market Engagement

National Grid hereby informs the market of an upcoming opportunity and to identify suppliers that may be able to supply the works required for the Major Projects Partnership and the Major Projects QUDM it will be called off from. This will include primarily 33 to 132kV Substation Construction, Underground Cabling and Overhead Tower Line Construction and Overhead Wood Pole Line Construction works. ED3 (Electricity Distribution 3) refers to the next five-year electricity distribution price control period (2028-2033), set by Ofgem, which will determine how distribution network operators (DNOs) plan and invest in Britain's electricity system. It is important because it will shape the scale, pace and delivery of network upgrades needed to support growing demand, connect new generation, and enable the transition to low carbon technologies, while ensuring services remain reliable, affordable, and responsive to customer needs. Delivery will involve close collaboration with key partners, who will play a vital role in enabling investment in infrastructure, innovation and network resilience to meet the needs of customers and communities over the coming period. Substation Construction Works under Substation Construction comprise of the following indicative list, specific to working within a live high-voltage (primarily 33 to 132kV) distribution network substation environment, with a typical project estimated between £200,000 and £5million: Procurement and supply chain management Subcontractor management Civil engineering Protection and control systems installation, configuration and commissioning Mechanical and electrical installation, testing and commissioning An indicative list of work types is as follows: New Build AIS/GIS AIS/GIS Substation Extension Major AIS/GIS Substation Asset Replacement Operators may be required to procure products that are to be selected from a list of suppliers that has been pre-approved by National Grid, to accept free-issue equipment and services supplied from contracts that National Grid has placed, or to accept the novation of such a contract after it has been placed by National Grid, for example: Power transformers Protection and Control Gas Insulated Switchgear Air Insulated Switchgear Consumables National Grid is currently looking at awarding these works to contractors on a regional basis. Overhead Tower Line Construction Works under Overhead Tower Line Construction comprises of the following illustrative list for Tower Overhead Line Construction works with typical project estimated between £500,000 and £20million. Scope shall include but is not limited to, the following indicative types of works (primarily 33 to 132kV): Consultation & Engagement Support the Client in the development of consultation materials as required Attend and present at consultation events and support the preparation of consultation responses Input into Consultation Report, liaise with Consents Integrator and engage with consultees as required Enabling Works: Pre-construction activities required before commencing the construction of main works including highway and service diversions, ground preparation and remediation, flood mitigation works, demolition of structures, soil stripping and removal, bridge construction, obtaining (including submission and payments of fees) of relevant permits and licences and environmental mitigation works Traffic management Landscaping Maintenance for agreed period of time within the planning permission and/or consent specification or as agreed with the relevant stakeholder and/or in line with Biodiversity Net Gain obligations These works will be across all four DNO licence areas of NGED and successful contractors may be appointed nationally. Overhead Wood Pole Line Construction Works under Overhead Wood Pole Line Construction comprises of the following illustrative list for Wood Pole Line Construction works (primarily 33 to 132kV) with typical project estimated between £50,000 and £2million. Scope shall include but is not limited to, the following indicative types of works: Supply or collect free issue wood poles and install to National Grid specification Carry out all electrical works in accordance with designs for new and replacement overhead wood pole construction Traffic management These works will be across all four DNO licence areas of NGED and successful contractors may be appointed nationally. Underground Cabling Works under Underground Cabling comprise of the following illustrative list for Underground Cabling Construction works with typical project estimated between £200,000 and £10million. Scope shall include but is not limited to, the following indicative types of works (primarily 33 to 132kV): Cable Jointing up to 132kV Provision of jointing resources for cable system installation using client-issued materials Jointing resources and equipment for non-client-issued jointing tasks Procurement and supply chain management Subcontractor management Civil engineering assoc