FTS UK public procurement

STEP Construction Partner (CP)

United Kingdom Fusion Energy

CompleteOCDS ID ocds-h6vhtk-0361bf
Tender value£20,000,000,0001 awards · 1 contracts

01 Procurement

Tender overview

Updated 22 April 2026
Buyer
United Kingdom Fusion Energy
Status
Complete
Procurement method
Competitive dialogue
Category
works
CPV classification
45220000 — Engineering works and construction works
Tender period
Not supplied — 12 July 2024

Description

UKIFS (now UKFE) has conducted this Procurement for a Construction Partner, who, together with a Fusion Partner (determined to be United Kingdom Atomic Energy Authority (UKAEA)), will bring together and develop extensive industrial capabilities to design and build a UK prototype fusion energy plant capable of delivering net-energy to the grid, and build a world-leading fusion delivery industry. The Procurement was originally divided into two lots: • Lot 1: Engineering Partner (EP) • Lot 2: Construction Partner (CP) However, Lot 1 – EP has since been cancelled. Lot 2 – CP is now the only Lot included in this Procurement exercise. The contract term for Lot 2 will expire 31 March 2029, followed by three (3) optional extension periods of four (4), six (6) and seven (7) years. UKFE will have the right to exercise an extension option at six (6) months’ notice. The maximum contract duration will be twenty (20) years with an estimated value of £10,000,000,000 across this period.

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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

1 shown
Active

STEP Engineering Partner and Construction Partner

Awarded
Not supplied
Award value
Not supplied
Suppliers
1
Signed contract
1 April 2026

03 Organisations

Buyers, suppliers and other parties

5 parties
Buyer

United Kingdom Atomic Energy Authority

Culham Campus, Abingdon, UK, OX14 3DB, United Kingdom

Identifier N/A
Buyer

United Kingdom Atomic Energy Authority

Culham Science Centre, Abingdon, UK, OX14 3DB, United Kingdom

Identifier N/A
Buyer

United Kingdom Fusion Energy

Culham Campus, Abingdon, UK, OX14 3DB, United Kingdom

Identifier N/A
Supplier

ILIOS

2nd Floor, Optimum House, Clippers Quay, Salford, UK, M50 3XP, United Kingdom

Identifier 1157281
ReviewBody, MediationBody, ReviewContactPoint

The High Court

The Royal Courts of Justice, London, United Kingdom

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.