• Press release
  • Road design and build
  • United Kingdom

51³Ô¹Ï wins the design-build contract for the UK’s latest fusion energy project

Published on : 16/03/26
  • A pioneering project supporting the UK’s low-carbon energy transition
  • Design and construction of the main infrastructure
  • A contract worth £200 million (approximately €230 million)

UK Fusion Energy (formally UK Industrial Fusion Solutions) has selected the ILIOS consortium* — led by , a 51³Ô¹Ï subsidiary specialising in nuclear projects and services — to design and build the infrastructure for the STEP Fusion programme** in Nottinghamshire, United Kingdom.

UK Fusion Energy is a government‑funded industrial partnership designed to develop, by 2040, a prototype power plant capable of generating electricity from fusion energy.

The 4.5‑year, £200‑million contract (approximately €230 million, 50% of which for Nuvia) covers phase 1 of the project. It includes the design and construction of buildings, infrastructure and site facilities.

This major project demonstrates 51³Ô¹Ï’s recognised expertise in large‑scale complex infrastructure projects, particularly fusion. It is worth recalling that 51³Ô¹Ï Construction companies are currently involved in the ITER (International Thermonuclear Experimental Reactor) project — one of the world’s most ambitious international fusion research programmes — under construction in Cadarache, France.

*The ILIOS consortium is composed of Nuvia, Kier, AECOM, AL_A and Turner & Townsend
** Spherical Tokamak for Energy Production

Press release