Source: https://tendernation.io/opportunities/01a13cdb-41bb-73f1-a097-b043cab2f404/step-engineering-partner-and-construction-partner [Skip to main content](#main-content) closedGBrestricted procedureSuitable for SMEs # STEP Engineering Partner and Construction Partner [United Kingdom Atomic Energy Authority](https://tendernation.io/buyers/united-kingdom-atomic-energy-authority) Estimated value £1 Published 22 May 2024 Deadline Closed 17 Jul 2024 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. [More contracts for small businesses and VCSEs](/opportunities/for-small-businesses)## About this tender UKAEA (on behalf of UKIFS - a special purpose vehicle to be established during the procurement process as the delivery body for STEP) is conducting this Procurement for an Engineering Partner (EP) and a Construction Partner (CP), who, together with a Fusion Partner (determined to be 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 is divided into two lots: • Lot 1: Engineering Partner (EP) • Lot 2: Construction Partner (CP) Both contract terms will be an initial three (3) year period, followed by three (3) optional extension periods of four (4), six (6) and seven (7) years (these durations are subject to change as the Programme develops). UKIFS will have the right to exercise an extension option on six (6) months' notice. The maximum contract duration for both contracts will be twenty (20) years with an estimated value of £10,000,000,000 each across this period. ## CPV classification Engineering works and construction works Source Contracts Finder (UK) [View official notice ](https://www.contractsfinder.service.gov.uk/notice/32eb2be3-c5fd-4b53-8326-6c3781ea421f) 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 Atomic Energy Authority: past awards and live tenders](https://tendernation.io/buyers/united-kingdom-atomic-energy-authority)[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 54 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 27 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 33 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 33 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)