Award

100917 Amersham AIS Bay Extension & SGT

NATIONAL GRID ELECTRICITY TRANSMISSION PLC

This public procurement record has 2 releases in its history.

Award

17 Feb 2026 at 17:19

UK6 - Contract Award Notice
Award

17 Feb 2026 at 17:11

UK5 - Transparency Notice
Summary of the contracting process

The procurement process involves NATIONAL GRID ELECTRICITY TRANSMISSION PLC, operating in the private utility sector, with the aim to expand and enhance the electricity transmission network through essential upgrades at the Amersham Substation in London, United Kingdom. This process, titled "100917 Amersham AIS Bay Extension & SGT", faced urgency due to the prior contractor entering administration. The procurement stage is complete, with BAM NUTTALL LIMITED appointed as the supplier through a direct award method. Key dates include contract initiation on 17 February 2026, followed by a contract period ending on 11 January 2027. The contract categorically falls within the scope of works, specifically relating to substation construction within the UK region.

This tender provides substantial opportunities for business growth, particularly for large enterprises capable of handling extensive infrastructure developments. Companies specialising in construction and utilities services, such as BAM NUTTALL LIMITED, are ideal candidates due to the scale and specialised nature of the required works. This project contributes to the UK's clean energy initiatives, offering businesses aligned with sustainable practices a chance to secure their role within the national infrastructure development. The direct award procurement method ensures swift commencement and continuity, benefitting companies that can respond promptly to critical path activities and regulatory commitments.

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Notice Information

Notice Title

100917 Amersham AIS Bay Extension & SGT

Notice Description

This contract relates to the delivery of works and related services at Amersham Substation (the "Works"). The Works were previously allocated to Gunning Transmission & Distribution Services Limited - in Administration ("GTDS"). GTDS went into administration on Friday 16 January 2026 and is unable to progress or complete delivery of the Works. As a consequence, National Grid has had to move at significant pace to appoint a replacement contractor for the Works, to progress critical path activities, maintain (as far as practicable) the programme for the works, and satisfy regulatory, customer and other commitments. The Works contribute to the ongoing expansion of the electricity transmission network, delivering essential upgrades to the grid to support the UK's move away from fossil fuels and increased clean energy generation. Various other projects are also being re-allocated to other contractors for similar reasons, while the delivery of further works (previously allocated to GTDS) is being supported by National Grid's existing framework contractors.

Procurement Information

The Works are strictly necessary to continue the delivery of nationally significant infrastructure upgrades as part of the ongoing enhancement of the grid. By bringing on the replacement contractor almost immediately through this direct award, National Grid is seeking to minimise and mitigate the delay to the Works arising from the administration of GTDS and maintain continuity of the supply chain and otherwise secure continuity on site. National Grid intends to have the contract in place before the end of January 2026, so within 2 weeks of GTDS' administration. While some earlier contingency planning was possible, National Grid could not reasonably have commenced a competitive tendering procedure before GTDS' administration was confirmed and there is no time to run such a procedure between the date of administration and the required into-contract date. The urgency is unavoidable as it is attributable solely to the administration of GTDS which could not have been foreseen when the Works were allocated to GTDS and was not confirmed until 16 January. National Grid has explored other alternatives to this direct award, including the use of its existing frameworks and allocation through its construction dynamic purchasing system, but no other route was found to be suitable in the circumstances.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-065688
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/014527-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Direct
Procurement Method Details
Direct award
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45232220 - Substation construction work

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
£4,700,000 £1M-£10M
Contracts Value
Not specified

Notice Dates

Publication Date
17 Feb 20265 days ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
17 Feb 20266 days ago
Contract Period
17 Feb 2026 - 11 Jan 2027 6-12 months
Recurrence
Not specified

Notice Status

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

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
NATIONAL GRID ELECTRICITY TRANSMISSION PLC
Contact Name
Not specified
Contact Email
box.gp.ukbuyernget@nationalgrid.com
Contact Phone
Not specified

Buyer Location

Locality
LONDON
Postcode
WC2N 5EH
Post Town
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
Not specified
Local Authority
Westminster
Electoral Ward
St James's
Westminster Constituency
Cities of London and Westminster

Supplier Information

Number of Suppliers
1
Supplier Name

BAM NUTTALL

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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