FTS UK public procurement

Owner's Engineer

GREAT BRITISH ENERGY - NUCLEAR

CompleteOCDS ID ocds-h6vhtk-0505a0
Tender value£600,000,0002 awards · 2 contracts

01 Procurement

Tender overview

Updated 7 August 2026
Buyer
GREAT BRITISH ENERGY - NUCLEAR
Status
Complete
Procurement method
Competitive flexible procedure
Category
services
CPV classification
Not supplied
Tender period
Not supplied — 9 July 2025

Description

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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This page represents one OCDS contracting process. Notices can be revised over time. Values may be estimates, award values or contract values and should be read with their displayed stage and date.

02 Awards and contracts

Published award records

2 shown
Active

Owner's Engineer

Awarded
9 February 2026
Award value
£300,000,000
Suppliers
2
Signed contract
30 March 2026
Active

Owner's Engineer

Awarded
Not supplied
Award value
Not supplied
Suppliers
2
Signed contract
30 March 2026

03 Organisations

Buyers, suppliers and other parties

8 parties
Buyer

GREAT BRITISH ENERGY - NUCLEAR

Department For Energy Security and Net Zero, London, UKI32, SW1A 2EG, United Kingdom

Companies House 05027024 →

Companies House links appear only for explicit GB-COH identifiers. BritDB does not create company links from a similar name or address.

04 Provenance

Source for this process

Contains public sector information licensed under the Open Government Licence v3.0. Official external links are available only on the source transition page.