Building on the government’s recently published fusion strategy, UK Fusion Energy has published a policy document that sets out how the UK will deliver its prototype fusion power plant, STEP Fusion, with which it hopes to secure a prominent position in the emerging global fusion market, which is estimated to be worth up to £12 trillion by 2100.

Backed by £1.3 billion in government investment, the strategy outlines a clear pathway from the existing science base to commercial fusion energy, while also creating significant opportunities for UK industry.

The strategy sets out how UK Fusion Energy Ltd, a part of the UK Atomic Energy Authority, will act as the national fusion systems integrator bringing together industrial partners, research expertise, and advanced digital and AI capabilities to deliver STEP Fusion at West Burton in the UK. The plant is expected to begin operations in 2040. 

Fusion energy is widely believed to be one of the most significant long‑term clean energy opportunities. As global demand grows for secure, scalable, low‑carbon power, fusion has the potential to provide a reliable energy source for generations, and at the same time strengthen energy security.

The announcement connects directly to the government’s wider Fusion Strategy, published in March. The strategy intends to build on the UK’s long experience in fusion development, employing an industrial partnership model that will integrate the ILIOS Consortium as construction partner, UKAEA as fusion partner, and Tokamak Energy as its first system partner for high‑temperature superconducting magnets. It is expecting technology breakthroughs in the form of rapid progress across essential fusion technologies, from next‑generation magnets and precision heating systems to advanced robotics and digital engineering.

Paul Methven, CEO of UK Fusion Energy Ltd, commented: “Fusion is a transformative opportunity, and the UK is exceptionally well placed to seize it. Our strategy sets out how we will deliver STEP Fusion in partnership with industry and use it as the launchpad for a globally competitive commercial fusion sector.”

UK Fusion Energy has also confirmed two major programme milestones that demonstrate clear progress. The organisation has awarded a £70 million contract to Tokamak Energy as its first engineering systems partner for next‑generation magnet technologies. The partnership brings UK-expertise in high‑temperature superconducting magnets and access to Tokamak Energy’s advanced ST40 facility, expected to accelerate design iteration, reduce technical risk and strengthen essential sovereign capability.