UK fusion moves toward industrial-scale delivery as investment surges
UK fusion has £2.5 billion in backing, a new planning draft and a 2040 STEP target at West Burton as investors and suppliers crowd in.
Global private funding for fusion has climbed to roughly $10 billion to $15 billion over the past seven or eight years, public funding worldwide has topped $5 billion, and the UK now spends more on fusion relative to GDP than any other nation. At the NextGen Nuclear Summit in London, the sector’s focus was planning rules, supply chains, jobs and capital.
The UK fusion strategy, published on 16 March 2026, puts more than £2.5 billion behind fusion research and commercialisation over five years and sets out aims to accelerate industry growth, expand supply chains and skills, and position the UK as a global leader in commercial fusion. Fusion is also now a priority sub-sector in the Clean Energy Sector Plan. In June, ministers published draft legislation and a draft National Policy Statement for fusion energy generation, giving the sector its first specific planning framework. Lord Vallance launched the strategy at Tokamak Energy, where the company’s high-temperature superconducting magnet work has become part of the sector’s industrial pitch.
The clearest deployment marker is STEP, the prototype plant led by UK Fusion Energy Ltd, part of the UK Atomic Energy Authority. UK Fusion Energy Ltd expects STEP to begin operations in 2040 at West Burton in Nottinghamshire, on the site of a former coal-fired power station by the River Trent. A Nottinghamshire economic impact assessment forecasts around 6,500 full-time equivalent jobs at West Burton in the 2040s, including about 1,500 on-site and 5,000 on the business park.
Tokamak Energy’s ST40 device reached plasma ion temperatures of 100 million degrees Celsius in 2022 and achieved the highest triple product of any private fusion company, although a U.S. Department of Energy summary puts the discharges at only 150 milliseconds. In May 2026, Type One Energy, Tokamak Energy and AECOM announced the UK Infinity Fusion Consortium to pursue a commercial fusion power plant project in the UK, while the UKAEA’s 2026-2030 strategy and its Fusion Futures Industry Capability Report 2025/26 name industrial partnerships, robotics, tritium science, materials and supply-chain capability as core build-out needs.
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