Owner's Engineer

Published facts

What the notice says

Buyer

GREAT BRITISH ENERGY - NUCLEAR

Published status

complete

Latest release reference

075438-2026

CPV codes

Common Procurement Vocabulary (CPV) codes: 71300000, 71500000, 71600000, 79417000

Published tags

contractAmendment

Latest record Bidwake loaded from this source

27 Aug 2026

The OE will provide essential independent assurance to the Intelligent Customer and Intelligent Client for the Small Modular Reactor project. This will support the deployment of first-of-a-kind nuclear technology in the UK and facilitate GBE-N's goal of reaching a Final Investment Decision. In particular, the OE will act as a 'client friend' to the Intelligent Customer and Intelligent Client and provide competent resource to undertake specification, oversight, audit, review and advice for decisions relating to design, scope, budget, risk, delivery and contract compliance. It will also play the role of subject matter expert to deliver independent technical and delivery Line of Defence 2 assurance on major design and build contracts. The maximum total contract value is £300m. However, it is not possible to predict an exact outturn value at this stage due to the length of the contract and inherent uncertainties in scope, which drive variability in the volume of work instructed. In addition, progression through design stages and associated milestones or gates will determine the timing and extent of services required, potentially influencing the overall contract value over time. As envisaged in the tender notice, the duration of the OE contract will depend on matters agreed with the SMR Technology Partner. The current assumption remains that the OE contract will have a 14-year term, but a completion date will be set during the term of the contract in accordance with its terms and to reflect the term of the SMR Technology Partner contract.

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Observed notice trail

How the published record developed

Events follow the publisher date where one is available. “Seen by Bidwake” is the date this service first found the record.

1. Planning notice observed

   22 Apr 2025

   Latest variant observed by Bidwake on 16 Jul 2026.

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   Record references

   Release reference

   016232-2025

   Published tags

   planning

2. Planning notice observed

   22 Apr 2025

   Latest variant observed by Bidwake on 16 Jul 2026.

   Open this official Find a Tender notice

   Record references

   Release reference

   016291-2025

   Published tags

   planning

3. Planning record updated

   28 Apr 2025

   Latest variant observed by Bidwake on 16 Jul 2026.

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   Record references

   Release reference

   017244-2025

   Published tags

   planningUpdate

4. Planning record updated

   30 Apr 2025

   Latest variant observed by Bidwake on 16 Jul 2026.

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Awards and suppliers

Published award and contract facts

• Owner's Engineer

  Buyer: GREAT BRITISH ENERGY - NUCLEARSupplier: AMENTUM CLEAN ENERGY LIMITED

  End date in notice

  23 Apr 2040Date from the linked contract

  Value shown in notice

  £300,000,000Value from the linked contract

  Official source

  Open the official Find a Tender notice for Owner's Engineer

  About this figure

  • This award names more than one supplier but does not divide the published value between them. The figure is shown for context and is not assigned to one supplier.
  • This figure comes from the linked contract record. Overall totals continue to use the separately published award value.
  • The dates published for the award and the linked contract do not agree. A contract end date is shown only when the linked records agree.

  View record references

  Source

  Find a Tender

  Award or lot reference

  1

• Owner's Engineer

  Buyer: GREAT BRITISH ENERGY - NUCLEAR

Related evidence

Published terms and linked processes

No recurrence, renewal or options wording appears in these notices.

No exact source-published process relationship was found.