Competition with a shortlist
Competitive procedure with a selection stage: suppliers were shortlisted before being invited to bid.
Key facts
- Buyer
- United Kingdom Fusion Energy · Body governed by public law
- Supplier
- Ilios
- Value
- £10,000,000,000
- Procedure
- Competitive dialogue
- Sector
- Construction work · Works for complete or part construction and civil engineering work (CPV 45200000)
- Region
- South East
- Official notice
- 036554-2026 on Find a Tender
- Timeline
-
- Contract date2 Apr 2026
- Published22 Apr 2026Published 20 days after the contract date
Description
The Construction Partner’s (CP) primary responsibility will be to collaboratively provide the capability to drive the integrated design of the overall layout, buildings, infrastructure, onsite and offsite facilities of the STEP Prototype Plant (SPP) to fulfil the support, enclosure and environmental requirements of the operational plant. The CP will then purchase, fabricate, deliver and install all elements of the designed facilities utilising existing and new supply chains, directly sourced or contracted resources. The CP’s responsibilities will include (but not be limited to) managing the overall health, safety, environment and security systems applicable to all parties engaged at the site. Additional information: Lot 1 for the Engineering Partner (EP) was cancelled and will not be awarded. Only Lot 2 for the Construction Partner (CP) forms part of this notice.
About the supplier
Ilios: every public contract they have won.