Official UK procurement notice
Prototype Fast Reactor Structural Verification
Authority: Nuclear Restoration Services Limited (Public body)
What is being bought
Published requirement descriptionA Contract has been awarded by NRS Dounreay, as a result of an Open Procedure, for the Structural Verification of the Prototype Fast Reactor Steam Generator Building and Turbine Hall.
CPV: Verification of load-bearing structure design services
The lotProcurement structure
single lot · value publishedLot #1AwardedPublished value£440,000
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (3)
- Technical: 60%
- Commercial: 30%
- Social Value: 10%
Published award criteria (3)
- Commercial: ITT documents provided
- Technical: ITT documents provided
- Social Value: ITT documents provided
- Price carries 30 of 100 points: a 10% discount moves about 3 points. The method statement decides this lot, not the discount.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Open procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Services
- Notice status
- Awarded
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Standard
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 26 Nov 2025, 16:06 GMT
- Last source update
- 14 May 2026, 15:27 BST
- Award evaluation window
- Submission end – 19 Jan 2026
- Authority reference
C31079- FTS notice number
2025/S 000-077401- Latest notice
- Contract details notice (UK7)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-05e992Find a Tender- Contract terms summary
The Commercial Model that will be utilised under the Contract is Option E (Cost reimbursable contract). This was deemed the most appropriate option, proportionate to the value of the Contract and the allocation of pricing risk, whilst eliminating alternative options including Option A (Priced contract with activity schedule) and even an Option C (Target contract with activity schedule), where the quantities of the required activities are not defined well enough within the specification for the tenderer to provide fixed activity prices.
The pricing model for tendering will comprise a model scenario based forecast where the various fee percentages are incorporated to provide a competitive total for assessment.
- Risks
There is a risk of unknown urgent repairs to steelwork that need to be carried out when opened for inspection.
How it was run
Official notice- Submission deadline
- 5 Jan 2026, 12:00 GMT
- Clarification deadline
- 18 Dec 2025, 12:00 GMT
- Electronic submission
- Not allowed
- Accepted languages
- en
ATAMIS
Timeline
26 Nov 2025 → 14 May 2026 · 8 dates- Tender notice published332 days ago26 Nov 2025, 16:06 GMT
- Clarification questions by311 days ago18 Dec 2025, 12:00 GMT
- Submission deadline293 days ago5 Jan 2026, 12:00 GMT
- Contract starts279 days ago19 Jan 2026
- Award decision expected by278 days ago19 Jan 2026, 23:59 GMT
- Assessment summaries sent229 days ago10 Mar 2026
- Standstill ends218 days ago20 Mar 2026, 23:59 GMT
- Latest notice published164 days ago14 May 2026, 15:27 BST
Notice history
5 events · 3 releases on Find a Tender · since 26 Nov 2025- Tender notice published26 Nov 2025, 16:06 GMTUK4
- Contract award notice published10 Mar 2026, 21:01 GMTUK6
- Status changed to complete10 Mar 2026, 21:01 GMT
- Contract signature expected23 Mar 2026, 23:59 GMTscheduled
- Contract details notice published14 May 2026, 15:27 BSTUK7
Commercial outcome & contract awards
Published awards, contracts and bid statistics, not a forecast| Awarded to | Value | Date | Status |
|---|---|---|---|
| Caithness Engineering Services23 Mar 2026 – 25 Sept 2026 | £680,001same award published again · counted once | 9 Mar 2026standstill to 20 Mar 2026 | Standstill |
| Caithness Engineering Services | £680,001 † | — | Awarded |
Contracts
Prototype Fast Reactor Structural Verification · Caithness Engineering Services
- Signed
- 30 Apr 2026
- Value
- £680,001
- Period
- 6 May 2026 – 6 Nov 2026 · up to 8 Feb 2027 with extensions
- Status
- active
- Extensions
- Estimate as a possible result of compensation events.
No agreed KPIs: Below threshold for setting and publishing KPIs.
Bid statistics published by the authority
| Bids | SME | VCSE | Valid bid range |
|---|---|---|---|
| 2final-stage tenders | 1 | 0 | — |
Contracting authority & participating public bodies
Bidders & participating suppliers
1 commercial party on the notice- Caithness Engineering ServicesAwarded supplier
Official documents & specifications (3)
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
- Tender notice Tender notice on Find a Tender