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Awarded United Kingdom Works

STEP Construction Partner

Reference ocds-b5fd17-ea265eae-7b7b-4fa1-9582-a951015d8c27 · UK Atomic Energy Authority

Awarded to ILIOS.

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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.

Awards

Awarded toAmountDate
ILIOS — 2 April 2026

Official publications

MediumReferenceDate
FTS 55501510-06d2-4ce2-a694-cc4b78f6e508-894057 22 April 2026
Contracts Finder 55501510-06d2-4ce2-a694-cc4b78f6e508-894057 22 April 2026

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Frequently asked questions

What is the deadline to bid for this tender?
The submission deadline is 17 July 2024, 13:00. Check the official source, as dates can be modified.
Who is the buyer of this tender?
The contracting authority is UK Atomic Energy Authority (United Kingdom).
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Data collected from official public procurement sources. Amounts as published by the buyer.