Contract award notice
Results of the procurement procedure
Section I: Contracting
entity
I.1) Name and addresses
Great British Energy - Nuclear
05027024
Department For Energy Security & Net Zero, 3-8 Whitehall Place, London
London
SW1A 2EG
UK
E-mail: supplychain@greatbritishnuclear.uk
NUTS: UK
Internet address(es)
Main address: https://www.gov.uk/government/organisations/great-british-energy-nuclear
I.4) Type of the contracting authority
Body governed by public law
I.5) Main activity
General public services
Section II: Object
II.1) Scope of the procurement
II.1.1) Title
Small Modular Reactor Technology Partner
Reference number: prj_2120
II.1.2) Main CPV code
42151000
II.1.3) Type of contract
Supplies
II.1.4) Short description
The Government is committed to a programme of new nuclear projects beyond Sizewell C, giving industry and investors the confidence they need to deliver projects at speed. Great British Energy - Nuclear (GBE-N) was launched as part of the government's Powering Up Britain plan. The first priority for GBE-N was to launch a competitive process to select small modular reactor (SMR) Technology Partners, which was the subject of this Procurement.
GBE-N sought to procure Technology Partners that will provide design, development, manufacturing, supply, installation and commissioning of various products, equipment or services related to the key plant required for SMR nuclear generation, including but not limited to reactor, steam generation, turbine, electrical generation, as well as the integrated design of these component parts. The Technology Partner will be responsible for delivery to site of a designed and tested solution, a complete set of interface specifications, and installation and commissioning of the solution.
GBE-N intends to establish a Project Development Company (Project Devco), which will provide developer capabilities. The Technology Partner will be responsible for joint working with a Project Devco to connect and test interfacing equipment, complete integrated system testing and complete final commissioning and handover.
Subject to affordability, GBE-N reserved the right to make up to four awards. However, GBE-N reserved the right to award three, two or only one contract(s) to Technology Partner(s), or not to make any award at all. Upon conclusion of the procurement process GBE-N awarded one Technology Partner contract. The decision in relation to how many Technology Partners were awarded contracts was taken having regard to the quality of tenders, as well as affordability and value for money considerations.
GBE-N intends to award a two-stage contract for the Technology Partner for the provision of their Site Specific Design Solution, with the first stage being design and the second stage being the supply. The second stage is conditional upon the exercise of an option by GBE-N. GBE-N reserves the right to exercise this option for manufacture and supply, installation and commissioning subject to satisfactory delivery against agreed milestones and achievement of Final Investment Decision (FID). GBE-N will make available Site Specific Design Solution development costs. The Supply Phase i.e. the period from FID to Commercial Operation Date (COD) for a first of a kind (FOAK) project in the UK will include the manufacture, supply, installation and commissioning of the Supply Works on a value-for-money basis by the Technology Partner and provision of fuel assemblies and supporting maintenance services up to and including first refuelling outage. GBE-N reserved the right to require Technology Partners to adopt specific supply solutions.
II.1.6) Information about lots
This contract is divided into lots:
No
II.1.7) Total value of the procurement
Value excluding VAT:
20 000 000 000.00
GBP
II.2) Description
II.2.2) Additional CPV code(s)
09310000
09340000
35113110
42150000
45251100
45251110
45251111
71311100
71322000
98113100
II.2.3) Place of performance
NUTS code:
UK
II.2.4) Description of the procurement
GBE-N conducted a Competitive Procedure with Negotiation in accordance with Regulation 29 of the Public Contracts Regulations 2015.
The Procurement process comprised three (3) stages:
a) Invitation to Submit Initial Tender Stage
b) Negotiation Stage; and
c) Final Tender Stage
GBE-N sought a Technology Partner that will design, integrate, manufacture, supply, install and commission facilities, products, equipment and services related to the key plant required for SMR nuclear generation. This includes but is not limited to the nuclear reactor, steam generation, turbine and electrical generation components.
GBE-N's key objective in undertaking the Procurement is to select counterparties to the TP Contract that is best able to:
a) deliver a reliable technical solution;
b) meet the SMR Programme objectives; and
c) facilitate speed of SMR execution and deliver FID within 5 years of the TP Contract starting date.
II.2.5) Award criteria
Quality criterion: Technical & Social Value
/ Weighting: 65
Price
/ Weighting:
35
II.2.11) Information about options
Options:
No
II.2.13) Information about European Union funds
The procurement is related to a project and/or programme financed by European Union funds:
No
Section IV: Procedure
IV.1) Description
IV.1.1) Type of procedure
Competitive procedure with negotiation
IV.1.8) Information about Government Procurement Agreement (GPA)
The procurement is covered by the Government Procurement Agreement:
Yes
IV.2) Administrative information
IV.2.1) Previous publication concerning this procedure
Notice number in the OJ S:
2023/S 000-020640
Section V: Award of contract
Title: Small Modular Reactor Technology Partner
A contract/lot is awarded:
Yes
V.2 Award of contract
V.2.1) Date of conclusion of the contract
10/04/2026
V.2.2) Information about tenders
Number of tenders received: 3
Number of tenders received from SMEs: 0
Number of tenders received by electronic means: 3
The contract has been awarded to a group of economic operators:
No
V.2.3) Name and address of the contractor
Rolls-Royce SMR Limited
13039768
C/O Rolls-Royce Plc, Moor Lane
Derby
DE24 8BJ
UK
NUTS: UK
The contractor is an SME:
No
V.2.4) Information on value of the contract/lot (excluding VAT)
Initial estimated total value of the contract/lot:
Total value of the contract/lot:
: 359 000 000.00
GBP
V.2.5) Information about subcontracting
The contract is likely to be subcontracted
Section VI: Complementary information
VI.3) Additional information
The procurement was conducted with Great British Nuclear (GBN) as the contracting authority. On 06 June 2025, the Secretary of State for the Department of Energy Security and Net Zero instructed GBN to update the company name to Great British Energy - Nuclear. This change came into effect on 10 June 2025.
The estimated total value within the tender notice for the two-stage TP Contract was £20,000,000,000 excluding VAT. This value was indicative only and based upon GBE-N's initial understanding of the potential costs of developing a first of a kind technology. This estimated total value was based on the fact that in the tender notice GBE-N reserved the right to make up to four awards, although GBE-N also reserved the right to award three, two or only one contract(s). GBE-N has ultimately decided to award only one TP Contract and the contract award notice value reflects this.
The forecast Stage 1 price of the TP Contract is £359,000,000. This forecast price may change.
The forecast Stage 2 price of the TP Contract is approximately £8,168,000,000. This forecast price is indicative only as the pricing mechanism for Stage 2 remains subject to negotiation during Stage 1.
VI.4) Procedures for review
VI.4.1) Review body
High Court of Justice
The Royal Court of Justice, The Strand
London
WC2A 2LL
UK
VI.5) Date of dispatch of this notice
08/05/2026