RFP QuestBeta
Awarded · ResultStage · award

GREAT BRITISH ENERGY - NUCLEAR

Owner's Engineer

ValueValue not published
Awarded
Published29 Jun 2026
RegionNationwide
Outcome — awarded
AMENTUM CLEAN ENERGY LIMITED + 1 more

This is a contract result notice, not an open opportunity. Details from the official award data.

Who to contact
supplychain@greatbritishnuclear.uk

The procurement contact named on the official notice.

The brief

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.

Key requirements

What the supplier must deliver

01

The OE will provide essential independent assurance

The OE will provide essential independent assurance to the Intelligent Customer and Intelligent Client for the Small Modular Reactor project.

02

This will support the deployment of first-of-a-kind

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.

03

In particular, the OE will act as

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.

04

It will also play the role

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.

Derived from the notice text — always confirm against the original documents.

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Source & provenance
OCID
ocds-h6vhtk-0505a0
Stage
award · Awarded
Source
Find a Tender
Buyer ref
060937-2026
View the original notice on Find a Tender

Contains public sector information licensed under the Open Government Licence v3.0. Source data © Crown copyright.

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