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PROCUREMENT OPPORTUNITY

Laser Induced Desorption System for Measuring First Wall Retention in STEP

UK Fusion Energy Ltd · Contract award notice on Find a Tender

Tender information last checkedLast checked 23 Sept 2026, 12:22.

Opportunity overview

UK Fusion Energy Ltd (UKFE) is seeking to appoint a supplier to undertake the concept design of a system capable of in-situ quantification of tritium retention within plasma-facing (first wall) materials for the Spherical Tokamak for Energy Production (STEP) programme. STEP is the UK's flagship fusion energy programme, sponsored by the Department for Energy Security and Net Zero (DESNZ), and aims to design and construct the UK's first prototype fusion power plant capable of demonstrating net energy production, fuel self-sufficiency and a viable route to plant maintenance. UKFE, a wholly owned subsidiary of the United Kingdom Atomic Energy Authority (UKAEA), is responsible for delivering the programme. A key challenge for future fusion power plants is the management of tritium, which serves as a fuel for the deuterium-tritium fusion reaction. Tritium is both radioactive and scarce, making accurate measurement of its retention within plasma-facing components essential to demonstrating fuel self-sufficiency, supporting tritium accountancy, and monitoring the condition of first wall materials throughout plant operation. The successful supplier will develop a concept design for a measurement system capable of operating within the demanding environment of a fusion power plant, taking into account constraints such as neutron radiation, strong magnetic fields, thermal loading, limited installation space, and exposure to radioactive materials. This procurement represents the initial concept design phase of a wider programme of work. Subject to future funding and programme approvals, the outputs of this contract are expected to inform subsequent detailed design activities, technology maturation, de-risking and testing, and ultimately the development of an integrated tritium measurement system for deployment within the STEP tokamak.

Awarded to

Amounts belong to published awards or contracts. Where several suppliers share one value, it is labelled as shared and is not a supplier-specific allocation.

Classification

No classification was supplied.

Lots

  • Lot 1Value not stated

Documents and notices

Published notice details

Additional information from the published procurement release. Fields appear only when supplied by the source; check the original notice and tender documents before acting.

Scope, procedure and submissions

Id
PP-UKFE-142
Status
complete
Procurement Method
open
Procurement Method Details
Below threshold - open competition

Legal basis

Id
2023/54
Scheme
UKPGA

Lots and requirements

Entry 1
Id
1
Status
complete

Buyer, suppliers and contacts

Organisation 1
Name
UK Fusion Energy Ltd
Id
GB-PPON-PCRM-7973-DCBL

Identifier

Scheme
GB-PPON
Id
PCRM-7973-DCBL

Address

Street Address
Culham Science Centre, Abingdon
Locality
Abingdon
Postal Code
OX14 3DB
Country
GB
Country Name
United Kingdom
Region
UKJ14

Contact

Name
Operational Procurement

Roles

buyer

Details

Classifications

Entry 1
Scheme
UK_CA_TYPE
Id
publicUndertaking
Description
Public undertaking
Organisation 2
Name
IDOM Consulting, Engineering, Architecture S.A.U.
Id
GB-PPON-PGXH-3739-CTPL

Identifier

Scheme
GB-PPON
Id
PGXH-3739-CTPL

Address

Street Address
Avenida Zarandoa 23, Bilbao
Locality
Bizkaia
Postal Code
48015
Country
ES
Country Name
Spain
Region
ES

Contact

Name
Maitane Amarika

Roles

supplier

Details

Scale
large
Vcse
No

Award information

Award 1
Id
1
Title
Laser Induced Desorption System for Measuring First Wall Retention in STEP
Status
active
Date
16 Sept 2026, 00:00
Main Procurement Category
services
Above Threshold
No

Items

Item 1
Id
1
Related Lot
1

Additional Classifications

Entry 1
Scheme
CPV
Id
71300000
Description
Engineering services
Entry 2
Scheme
CPV
Id
71320000
Description
Engineering design services
Entry 3
Scheme
CPV
Id
71600000
Description
Technical testing, analysis and consultancy services
Entry 4
Scheme
CPV
Id
73100000
Description
Research and experimental development services
Entry 5
Scheme
CPV
Id
73111000
Description
Research laboratory services
Entry 6
Scheme
CPV
Id
73120000
Description
Experimental development services

Delivery locations

Entry 1
Region
UK
Country
GB
Country Name
United Kingdom

Value

Including VAT
88,464
Amount
73,720
Currency
GBP

Suppliers

Supplier 1
Id
GB-PPON-PGXH-3739-CTPL
Name
IDOM Consulting, Engineering, Architecture S.A.U.

Contract period

Starts
8 Oct 2026, 00:00
Ends
31 Mar 2027, 23:59

Related lots

1

Documents

Entry 1
Id
087860-2026
Document Type
awardNotice
Notice Type
UK6
Description
Contract award notice on Find a Tender
Published
16 Sept 2026, 15:11
Format
text/html

Milestones

Entry 1
Id
1
Type
futureSignatureDate
Due
28 Sept 2026, 23:59
Status
scheduled

Recorded locations

  • Buyer location · Abingdon · UKJ14 · OX14 3DB · United Kingdom

Notice and amendment history

3 published notice versions reviewed by ProcuraAxis.

3 VERSIONS
  1. 070950-2026Tender notice on Find a Tender ·
  2. 079466-2026Tender notice on Find a Tender ·
  3. 087860-2026Contract award notice on Find a Tender ·