Award

HNB - Decommissioning Site Electrical Distribution System

NUCLEAR RESTORATION SERVICES LIMITED

This public procurement record has 4 releases in its history.

Award

23 Apr 2026 at 10:18

AwardUpdate

25 Feb 2026 at 10:57

Award

16 Feb 2026 at 15:47

Award

18 Dec 2025 at 12:20

Summary of the contracting process

Nuclear Restoration Services Limited, a public authority under sub-central government, is overseeing the procurement process for the decommissioning site electrical distribution system at Hunterston B. This project is a critical component of the UK's nuclear decommissioning programme, aimed at ensuring the safe and efficient transition of Advanced Gas-Cooled Reactor sites previously managed by EDF Energy Nuclear Generation Limited. The procurement, which concluded with a direct award to Dalkia Engineering Limited, marks the completion of this important process as part of the transition starting in spring 2026. The project, divided into two phases, involves detailed design followed by procurement and construction works, with the contract period set between April 2026 and May 2028. The procurement method chosen was a direct award, justified by the need to avoid technical difficulties and regulatory risks, ensuring the ongoing operation of Hunterston B is maintained efficiently.

This contract presents significant business growth opportunities for suppliers specialising in electrical services, particularly large-scale firms capable of handling critical technical requirements and maintaining compliance with rigorous safety and environmental standards. Dalkia Engineering Limited, a reputable supplier based in Nottingham, has been selected through this direct award process due to its expertise and capability to fulfill the intricate requirements necessary for the decommissioning process. Businesses that provide specialised electrical installation services and have experience in nuclear site operations are in an advantageous position to collaborate on similar contracts in the future as Nuclear Restoration Services proceeds with its procurement plans under established processes, following the completion of this current agreement.

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Notice Title

HNB - Decommissioning Site Electrical Distribution System

Notice Description

Delivery of a Decommissioning Site Electrical Distribution System, detailed design and build contract, split into 2 phases. Phase 1 detailed design, Phase 2 procurement and construction works following completion of detailed design at Hunterston B

Procurement Information

As part of the UK's nuclear decommissioning programme, Nuclear Restoration Services (NRS) will begin taking ownership of assets and the responsibility for the Advanced Gas-Cooled Reactor (AGR) sites from EDF Energy Nuclear Generation Limited (EDF). This transition, starting with Hunterston B in spring 2026, marks a key milestone in ensuring the continued safe, secure and cost-effective decommissioning of the UK's nuclear legacy. NRS is committed to transparency and collaboration throughout this transfer process, working closely with EDF, regulators and stakeholders to deliver a seamless transfer whilst maintaining the highest standards of regulatory, safety and environmental compliance. In line with this commitment, NRS therefore intends to make a direct award in accordance with Section 41 of the Procurement Act 2023 and wishes to advise that the existing EDF contract with Dalkia Engineering Limited, as detailed in this notice, is being novated to Nuclear Restoration Services (NRS) as part of the AGR site transfer process. This is a direct award for the purposes of Procurement Act 2023 and is being made pursuant to Paragraph 6 of Schedule 5 to the Procurement Act 2023 NRS considers Paragraph 6 applies as the services provided by Dalkia Engineering Limited are critical to the ongoing operation of Hunterston B and it would create significant technical difficulties and unacceptable regulatory risks to NRS for another supplier to supply the Decommissioning Site Electrical Distribution System at this time. Following completion of this novated contract, all future requirements will be progressed through NRS's established procurement processes and in continued compliance with the Procurement Act 2023 (PA23). Dalkia Engineering Limited is neither an excluded or excludable supplier. A Contract Award Notice and Contract Details Notice will follow in accordance with Procurement Act 2023. ** Please Note ** This is a framework and will be called off as and when required.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05f8f3
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/036980-2026
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK7 - Contract Details Notice
Procurement Type
Standard
Procurement Category
Services
Procurement Method
Direct
Procurement Method Details
Direct award
Tender Suitability
Not specified
Awardee Scale
Large

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

71 - Architectural, construction, engineering and inspection services


CPV Codes

45310000 - Electrical installation work

71314100 - Electrical services

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
£14,000,000 £10M-£100M
Contracts Value
£14,000,000 £10M-£100M

Notice Dates

Publication Date
23 Apr 2026Yesterday
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
18 Dec 20254 months ago
Contract Period
31 Mar 2026 - 31 May 2028 2-3 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Active, Pending
Contracts Status
Active

Contracting Authority (Buyer)

Main Buyer
NUCLEAR RESTORATION SERVICES 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
WARRINGTON
Postcode
WA3 6GR
Post Town
Warrington
Country
England

Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
Not specified

Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Supplier Information

Number of Suppliers
1
Supplier Name

DALKIA ENGINEERING

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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