Source: https://tendernation.io/opportunities/01a13bca-e809-70e7-ad69-476b699d5595/step-construction-partner-cp [Skip to main content](#main-content) awardedGBrestricted procedure # STEP Construction Partner (CP) [United Kingdom Fusion Energy](https://tendernation.io/buyers/united-kingdom-fusion-energy) Estimated value £20,000,000,000 Published 22 Apr 2026 Deadline Closed 12 Jul 2024 ## Who can bid - Split into 2 lots You can usually bid for just the lots you can deliver. ## About this tender 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. ## CPV classification Engineering works and construction worksWorks for complete or part construction and civil engineering workEngineering, auxiliary, average, loss, actuarial and salvage insurance servicesArchitectural, construction, engineering and inspection servicesArchitectural, engineering and planning servicesArchitectural, engineering and surveying servicesConsultative engineering and construction servicesCivil engineering consultancy servicesStructural engineering consultancy servicesEnvironmental engineering consultancy servicesAdvisory and consultative engineering servicesConstruction work for industrial buildingsLaboratory building construction workConstruction work for engineering works except bridges, tunnels, shafts and subwaysStructures construction workConstruction works for power plants and heating plantsConstruction work for power plantNuclear-power station construction workConstruction work for nuclear reactorsConstruction work for manufacturing plant Source Find a Tender (UK) · Notice ocds-h6vhtk-0361bf-2026-04-22T12:28:33+01:00 [View official notice ](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-0361bf-2026-04-22T12:28:33+01:00) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free ](/register) [Buyer profileUnited Kingdom Fusion Energy: past awards and live tenders](https://tendernation.io/buyers/united-kingdom-fusion-energy)[SectorMore Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Gwelliannau i / Improvement works to the ‘Materials Recovery Facility’ (MRF) Ystâd Ddiwydiannol Cibyn, Caernarfon, Gwynedd, LL55 2BD Cyngor Gwynedd 55 days left 10 Dec 2026](https://tendernation.io/opportunities/01a145df-0f49-7002-8294-fee17b4b2429/gwelliannau-i-improvement-works-to-the-materials-recovery-facility-mrf-yst)[Internal refurbishment of office building, College of Policing Ryton College of Policing Limited 21 days left 6 Nov 2026](https://tendernation.io/opportunities/01a14571-3264-70ac-b47e-53d4d47c39bd/internal-refurbishment-of-office-building-college-of-policing-ryton)[NDC0130-26 - Installation of Replacement LED Lighting - Greenlanes North Devon District Council 28 days left 13 Nov 2026](https://tendernation.io/opportunities/01a14571-3605-73e4-a82d-39df6bb2e4f2/ndc0130-26-installation-of-replacement-led-lighting-greenlanes)[CA18576 - Electrical Maintenance. 4 Year Opportunity New College Swindon 34 days left 19 Nov 2026](https://tendernation.io/opportunities/01a1458c-9ef1-72d0-83ac-b95edf2163c7/ca18576-electrical-maintenance-4-year-opportunity)[Electrical Maintenance. 4 Year Opportunity New College Swindon 34 days left 19 Nov 2026](https://tendernation.io/opportunities/01a14571-3744-7068-975c-bbafa5217467/electrical-maintenance-4-year-opportunity)[Rooftop Solar PV O&M Framework 2027 West Sussex County Council 28 days left 13 Nov 2026](https://tendernation.io/opportunities/01a1451e-c38a-70c2-b40d-bef4d791169f/rooftop-solar-pv-om-framework-2027)