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Major Projects QUDM

NATIONAL GRID UK LIMITED

This public procurement record has 3 releases in its history.

Tender

06 Aug 2026 at 10:00

UK13 - Dynamic Market Intention Notice
PlanningUpdate

12 Jun 2026 at 16:47

UK2 - Preliminary Market Engagement Notice
Planning

09 Jun 2026 at 16:19

UK2 - Preliminary Market Engagement Notice
Summary of the contracting process

National Grid UK Limited is procuring construction and related services for electricity distribution and transmission infrastructure, primarily at 33kV to 132kV. The scope covers substations, underground cabling, overhead tower lines, overhead wood-pole lines, civil engineering and multi-disciplinary packages. It includes design, surveys, project and site management, enabling works, stakeholder and consent support, traffic management, environmental mitigation, supply-chain management and maintenance. Work may also include telecommunications ducts, chambers, fibre-optic cable and communications towers. Substation and underground-cabling work will be delivered regionally across the East Midlands, West Midlands, South West and Wales; overhead-line and multi-disciplinary work may be delivered nationally. Other National Grid group companies may also use the arrangement.

The procurement has reached tender: suppliers are invited to submit offers through an open dynamic market. Registration is through National Grid’s eSourcing system, and electronic submission is allowed. The arrangement is available to National Grid group utility entities and is intended to support the Major Projects Partnership for the ED3 period. The single lot’s contract period is 25 June 2027 to 31 March 2033; the associated open framework is intended to start on 28 September 2026 and has no stated end date. Typical project values are £50,000–£2 million for wood-pole lines, £100,000–£5 million for civils, £200,000–£5 million for substations, £200,000–£10 million for underground cabling and £500,000–£20 million for tower lines. Evaluation covers financial stability and technical capability, including PA23 Schedules 6 and 7 requirements.

This opportunity suits established electricity-network construction contractors, specialist subcontractors and multi-disciplinary infrastructure businesses able to deliver work safely in live high-voltage environments. Relevant capabilities include overhead tower and wood-pole construction, cable jointing and installation up to 132kV, substation construction and commissioning, civils, temporary works and detailed engineering design. Suppliers should be able to act as Principal Designer and Principal Contractor under CDM 2015, manage competent resources and subcontractors, and control safety, quality, cyber security, environmental and sustainability obligations. Experience with surveys, consents, landowners, highways, Network Rail, environmental mitigation and complex stakeholder coordination is relevant. Businesses with suitable accreditations, financial resilience, robust supply chains and the capacity to deliver regionally or nationally are best placed to compete; work volumes are not guaranteed.

How relevant is this notice?

Notice Information

Notice Title

Major Projects QUDM

Notice Description

This QUDM is for Substation Construction, Underground Cabling, Overhead Tower Line Construction, Overhead Wood Pole Line Construction and Civils works, all primarily from 33kV to 132kV. In addition to the requirements of National Grid Electricity Distribution (NGED), the Contracting Authority reserves the right for other National Grid group companies to procure works and services through this QUDM. This may include, but is not limited to, the delivery of substation, underground cable and overhead line construction works associated with transmission and distribution network infrastructure. No minimum volume of work is guaranteed in respect of such requirements. Once established, this QUDM may be used to tender the Major Projects Partnership, NGED's principal delivery framework for third-party construction services in ED3. 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 PS200,000 and PS5million: - New Build AIS/GIS. - AIS/GIS substation extension. - Major AIS/GIS substation asset replacement. - Protection and control systems installation, configuration and commissioning. - Mechanical and electrical installation, testing and commissioning - Contractors may be required to procure from NGED pre-approved supplier lists, accept free-issue equipment, or accept novation of contracts placed by NGED (e.g. power transformers, protection and control, GIS, AIS, consumables). - These works will be awarded on a regional basis, split between the four DNO licence areas of NGED. 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 PS500,000 and PS20million. Scope shall include but is not limited to, the following indicative types of works (primarily 33 to 132kV): - Supply or collect free-issue towers and install to NGED specification. - Electrical works for new and replacement overhead tower construction. - 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 PS50,000 and PS2million. Scope shall include but is not limited to, the following indicative types of works: - Supply or collect free-issue wood poles and install to NGED specification. - Electrical works for new and replacement overhead wood pole construction. - 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 PS200,000 and PS10million. Scope shall include but is not limited to, the following indicative types of works (primarily 33 to 132kV): - Cable jointing up to 132kV (client-issued and non-client-issued materials). - Temporary works design for jointing techniques - Cable pulling: access, trenches, duct installation, jointing, testing, backfilling, installation. - Cable removal: buried HV cable and associated above-ground equipment (terminations, oil tanks, kiosks, foundations). - These works will be awarded on a regional basis, split between the four DNO licence areas of NGED. Civils - Works under Civils comprise of the following illustrative list for Civils works with typical project estimated between PS100k to PS5 million. Scope shall include but is not limited to, the following indicative types of works (primarily 33 to 132kV): - Modification, demolition, dismantling, foundations, fencing, interceptors, drainage, roads, trenching, excavation, cable ducts within existing substations. - Associated building maintenance (roofs, redecoration, joinery, guttering, glazing, trench covers, doors/gates). - Specialist works for environmental protection (flooding, wind, humidity). Multi-Disciplinary Works - These works are designed to allow Contractors to offer more than one service from the above areas as a package of works and covers the requirements of all the above works. - Contractors may be awarded works that covers two or more of the work required in Overhead Line - Tower, Overhead Line - Wood Pole, Substation and Underground Cable. - These works will typically include the largest and most complex of NGED's projects. - These works will be across all four DNO licence areas of NGED and successful contractors may be appointed nationally. Scope generally applicable to all work categories Design - Outline and detailed design (construction, maintenance, temporary works, electrical safety), including drawings and technical reporting for planning/consent and construction information. - Act as Principal Designer under CDM 2015 and appoint Principal Designer Representative as required. - Review System Design Specification and prior design works for gaps, limitations and restrictions. - Discharge planning/consent conditions into detailed design - Manage design change with version control, and coordinate across disciplines to reduce interface risk. - Eliminate hazards so far as reasonably practicable and reflect NGED environmental and sustainability requirements. Surveys - Plan, deliver and report all lifecycle surveys, including site walkover, borehole, soil, intrusive (e.g. foundation), existing asset and utility surveys. Project, programme and site management - Act as Principal Contractor under CDM 2015. - Deliver works to NGED Management of Works procedures and all applicable standards. - Manage safety, quality, security and environmental compliance - Maintain site records, document control and a safe/secure site - Deploy sufficient competent resources. Enabling and site establishment - Welfare compounds, fencing, security, temporary utilities, reinstatement on completion. - Highway and service diversions, ground preparation and remediation, flood mitigation, soil stripping, bridge construction, permits and licences, environmental mitigation. Stakeholder and consents - Liaise with landowners, grantors, statutory bodies and undertakers (Local Highways Authority, Network Rail, Environment Agency, DNOs). - Coordinate with Lands Team for survey access and support S172 evidence. - Support consultation materials, attend and present at events, input to Consultation Report, liaise with Consents Integrator - Support Client at technical stakeholder meetings and liaise with Client operational and project delivery teams. Other works - Procurement and supply chain management. - Subcontractor management. - Temporary and permanent access design and provision. - Temporary works design, management and provision. - Traffic management. - Landscaping. - Maintenance for the period agreed in planning/consent or with stakeholders, including Biodiversity Net Gain obligations. - In order to support communications needs on the electricity distribution network, the installation of Telecoms ducts, chambers and Fibre Optic cable may be required alongside the HV cable installations. Telecoms ducts and chambers must comply with Standard Techniques CA6A, TC3a and TC3B. - Communications tower construction may also be required, comprising of a square base for a radio tower, generator base and associated ducts and chambers, cable management, earthing and fencing as required.

Planning Information

Interested suppliers are invited to provide: • Company overview and relevant experience • Areas of interest (Substation Construction, Underground Cabling, Overhead Tower Line Construction and Overhead Wood Pole Line Construction, Multi-discipline works or combinations) • Details of relevant accreditations and certifications • Examples of similar projects or services delivered • Any innovative approaches or technologies relevant to the sector The Document should be limited to a total of 2 pages of A4. A list of accreditations is all that is required at this stage, with validation to take place in the future tender opportunity. Please submit to: box.ngedconstructionprocurement@nationalgrid.com Following this notice, National Grid will: • Conduct an in-person market engagement supplier day - to provisionally be held on 25 June 2026 in the Warwick area - with interested suppliers. National Grid reserves its right, in its sole discretion, to select attendees to this engagement day based on experience and capability. A signed non-disclosure agreement will be required to be provided prior to attendance of the day. • Refine requirements and procurement strategy • Issue a formal procurement notice at a later date but a formal tender is not confirmed at this point.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-06b11f
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/074509-2026
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK13 - Dynamic Market Intention Notice
Procurement Type
Dynamic
Procurement Category
Works
Procurement Method
Open
Procurement Method Details
Dynamic market
Tender Suitability
Not specified
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

31 - Electrical machinery, apparatus, equipment and consumables; lighting

45 - Construction work

CPV Codes

31321100 - Overhead power lines

45232220 - Substation construction work

45314000 - Installation of telecommunications equipment

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
6 Aug 20262 weeks ago
Submission Deadline
Not specified
Future Notice Date
18 Jun 2026Expired
Award Date
Not specified
Contract Period
25 Jun 2027 - 31 Mar 2033 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
NATIONAL GRID UK LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
LONDON
Postcode
WC2N 5EH
Postcode Area
Central London
Country
England
Major Region (ITL 1)
TLI London
Basic Region (ITL 2)
TLI3 Inner London - West
Small Region (ITL 3)
TLI35 Westminster and City of London
Delivery Location
TLF East Midlands (England), TLG West Midlands (England), TLK South West (England), TLL Wales
Local Authority
Westminster
Electoral Ward
St James's
Westminster Constituency
Cities of London and Westminster

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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