Official UK procurement notice
HNB - Decommissioning Site Electrical Distribution System
Authority: Nuclear Restoration Services Limited (Public body)
What is being bought
Published requirement descriptionDelivery 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
The lotProcurement structure
single lot · no lot value publishedProcedure terms & legal framework
From the official record- Procedure method
- Direct award
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Notice status
- Awarded without competition
- Procurement threshold
- Unspecified in notice
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Direct award (no call for competition)
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 18 Dec 2025, 12:20 GMT
- Last source update
- 23 Apr 2026, 11:18 BST
- Authority reference
C30900- FTS notice number
2026/S 000-036980- Latest notice
- Contract details notice (UK7)
- Delivery area
- Not published
- Official registry OCID
ocds-h6vhtk-05f8f3Find a Tender
- Why no open competition
- Single Suppliers Technical Reasons
- Published justification
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.
How it was run
Official notice- Submission deadline
- —
Timeline
25 Feb 2026 → 23 Apr 2026 · 2 dates- Standstill ends239 days ago25 Feb 2026, 23:59 GMT
- Notice published183 days ago23 Apr 2026, 11:18 BST
Notice history
5 events · 4 releases on Find a Tender · since 18 Dec 2025- Transparency notice published18 Dec 2025, 12:20 GMTUK5
- Contract award notice published16 Feb 2026, 15:47 GMTUK6
- Contract award notice published25 Feb 2026, 10:57 GMTUK6
- Contract signature expected27 Feb 2026, 23:59 GMTscheduled
- Contract details notice published23 Apr 2026, 11:18 BSTUK7
Routine re-releases (4)
- 2025-12: 1 release · 18 Dec 2025
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Dalkia Engineering LtdDecommissioning Site Electrical Distribution System (AGR Unique Ref. 1 Project & Decon)1 Apr 2026 – 31 May 2028Amended: Amend description | £14,000,000same award published again · counted once | 16 Feb 2026standstill to 25 Feb 2026 | Standstill |
| Dalkia Engineering Ltd | £14,000,000 † | — | Awarded |
Contracts
HNB - Decommissioning Site Electrical Distribution System · Dalkia Engineering Ltd
- Signed
- 31 Mar 2026
- Value
- £14,000,000
- Period
- 1 Apr 2026 – 31 May 2028
- Status
- active
No agreed KPIs: n/a
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- Dalkia Engineering LimitedAwarded supplier
Official documents & specifications (4)
Official links; attachments are not copiedNotices published for this procedure
- Contract details notice Contract details notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Contract award notice Contract award notice on Find a Tender
- Transparency notice Transparency notice on Find a Tender