Multi-staged Depressed Collector Gyrotron for Fusion Applications - STEP Programme
Summary
UK Fusion Energy Limited has published a tender notice for the design and manufacturing of a multi-staged depressed collector gyrotron for fusion applications under the STEP (Spherical Tokamak for Energy Production) programme. The estimated contract value is £7.2 million including VAT, with an estimated duration of 2 years, 8 months, 20 days from July 2026 to March 2029. Bids must be submitted by 27 April 2026.
What changed
UK Fusion Energy Limited (UKFE) has issued a procurement notice (Reference: PP-UKFE-485) seeking contractors for the design and manufacturability of a multi-staged depressed collector gyrotron for fusion applications. The contract has an estimated value of £6 million excluding VAT (£7.2 million including VAT) and is estimated to run from 12 July 2026 to 31 March 2029. The procurement uses a competitive flexible procedure with a two-stage process: first a Pre-Qualification Questionnaire (PSQ), followed by an Invitation to Tender (ITT) for shortlisted suppliers.
Potential suppliers should note the key deadlines: the enquiry deadline is 10 April 2026 at 5:00pm, and the tender submission deadline is 27 April 2026 at 12:00pm. The estimated award decision date is 8 May 2026. The tender is open to small and medium-sized enterprises (SME) and submissions must be made electronically via the eSourcing portal. Interested parties should access the full tender documentation and submission portal through the links provided in the notice.
What to do next
- Access the eSourcing portal to review full tender documentation
- Submit Pre-Qualification Questionnaire (PSQ) by 27 April 2026, 12:00pm
- Ensure SME eligibility before applying
Source document (simplified)
Tender
Multi-staged Depressed Collector Gyrotron for Fusion Applications
- UK Fusion Energy Limited UK4: Tender notice - Procurement Act 2023 - view information about notice types
Notice identifier: 2026/S 000-030022
Procurement identifier (OCID): ocds-h6vhtk-067a0c
Published 31 March 2026, 5:27pm
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Contents
Scope Participation Submission Award criteria Other information Procedure Contracting authority
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Reference
PP-UKFE-485
Description
UKFE is seeking to progress the design and manufacturability of a multi-staged depressed collector gyrotron for fusion applications to be used in STEP.
For more information about this opportunity, please visit the eSourcing portal at:
https://ukifs.delta-esourcing.com/tenders/UK-UK-Abingdon:-Engineering-design-services./64RM5PS6T4
To respond to this opportunity, please click here:
https://ukifs.delta-esourcing.com/respond/64RM5PS6T4
Total value (estimated)
- £6,000,000 excluding VAT
- £7,200,000 including VAT Above the relevant threshold
Contract dates (estimated)
- 12 July 2026 to 31 March 2029
- 2 years, 8 months, 20 days
Main procurement category
Services
CPV classifications
Engineering design services
Engineering-design services for industrial process and production
Engineering support services
Contract locations
- UK - United Kingdom
Participation
Particular suitability
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
10 April 2026, 5:00pm
Submission type
Tenders
Tender submission deadline
27 April 2026, 12:00pm
Submission address and any special instructions
https://ukifs.delta-esourcing.com /
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
8 May 2026
Award criteria
| Name | Description | Type |
| --- | --- | --- |
| PSQ | PSQ | Quality |
Weighting description
PSQ
Other information
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
Step 1 - PSQ
Step 2 - ITT ( For shortlisted Suppliers)
Contracting authority
UK Fusion Energy Limited
- Public Procurement Organisation Number: PCRM-7973-DCBL Culham Campus, Abingdon
Abingdon
OX14 3DB
United Kingdom
Telephone: 00000000000
Email: operationalprocurement.step@ukifs.uk
Region: UKJ14 - Oxfordshire
Organisation type: Public undertaking (commercial organisation subject to public authority oversight)
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