Who we are
UK Fusion Energy Ltd is among the most advanced and best-capitalised fusion companies globally.
As the Whole Plant Integrator our aim is to provide integrated commercial fusion plants world-wide, enabling our industrial partners to compete and trade in global markets.
We have strong national and regional support including £1.3bn of funding for the next stage of STEP Fusion.
We are proving the technologies required and completing an integrated design which will deliver net power to the grid, breed its own tritium fuel, and demonstrate a path to commercial availability.
The UK Fusion ENergy Strategy IN BRIEF
The UK Fusion Energy Strategy was released in 2026 following publication of the UK Government’s Fusion Strategy
Fusion energy is one of the most significant global opportunities of the century. As worldwide demand for clean, secure and scalable power accelerates, fusion offers stable, low-carbon energy capable of deployment anywhere across the globe – an industrial opportunity valued at £3-12 trillion by the end of the century. Progress is rapid, and while major milestones remain, the next critical phase is industrial: building the capability to manufacture and integrate fusion systems at scale. Now is the time for society, industry and investors to help shape, and benefit from, an entirely new energy sector as it matures.
With over seven decades of leadership in fusion research, engineering and operations, the UK brings unparalleled depth in science, technology, IP and systems integration. And the UK also leads on the conditions for success, being the first country to set up a positive regulatory approach for fusion and to commit to developing a market framework for fusion energy. The UK’s Fusion Strategy sets out the national ambition, and UK Fusion Energy translates this ambition into reality through a distinctive operating model based on commercially relevant integrated design and true partnering with the best of industry.
As whole plant integrator, UK Fusion Energy orchestrates the end-to-end development of fusion facilities – from concept and design through construction and operation – working with industrial primes to co-develop the critical technologies and industrial capabilities needed for fusion at scale – with applications far beyond the sector itself.
UK Fusion Energy is now assembling world-class industrial partners and supply chains to bring together and optimise the full suite of technologies and systems required to deliver whole-plant fusion solutions safely. We are already building a thriving industry which benefits from the global market for these technologies with applications spanning beyond fusion. Industrial partners involved in the development of STEP Fusion will be ideally placed to deliver the future fleet of commercial fusion plants.
As integrator, we aim to provide commercial fusion plants globally, enabling our industrial partners to win work around the world. Commercial opportunities exist now in developing technologies for fusion and adjacent sectors.
Fusion creates significant investment opportunities from now. At the company level, UK Fusion Energy will come forward with opportunities for investors in due course as we demonstrate further progress on the STEP Fusion prototype. At the supply chain level, and in the very near term, UK Fusion Energy will work with industry partners to secure investment into them, leveraging the capability they build through STEP Fusion and the multiple adjacent advanced technologies they can develop from the IP we license to them. And there are also opportunities on our site at West Burton and in the surrounding region, where our STEP Fusion project is an anchor for the wider Trent Clean Energy Supercluster and its high-value industries, creating scalable pathways for long-term investment.
The boldest endeavours start with a practical step
UK Fusion Energy will deliver STEP and successive fusion power plants by acting as a national fusion systems integrator, and working with industrial partners to develop and deploy the technologies and capabilities required.
“UK Fusion Energy is one of the world’s leading fusion companies. The government completely backs the UK Fusion Energy vision set out in this document, to build on our national strengths to take fusion from the lab to the grid, delivering major benefits to the UK now and for generations to come.”
Lord Vallance of Balham – Minister for Science, Innovation, Research and Nuclear
Read our strategy IN FULLWhy Fusion Energy?
Fusion energy powers the stars; on earth it can be a game changing technology.
The market demand is huge and those who commercialise fusion will lead an energy revolution with rewards counted in trillions of pounds. Fusion energy is reliable, it doesn’t depend on seasonal variation, the sun or the wind. Fusion fuel is abundant, it can be found in our seas and the earth’s crust.
Fusion is energy efficient, it is the most power-dense process available on earth. Fusion energy is clean, it is low carbon with low land usage. The fusion process is safe, it can be readily controlled. Fusion energy has many uses for the neutrons, high grade heat and firm electricity it can produce.
The race to commercial fusion energy is now accelerating, and nations are moving fast to secure their early position in a future global fusion market. With its clear strategy and national fusion integrator, the UK is positioning itself not just to take part in this industry but to lead it.
UK Leadership in fusion Technology
The UK stands out for its strategic, whole‑system approach.
As the first country to publish a national fusion strategy, the first to regulate specifically to help safe fusion deployment and the first to commit to developing a market framework for fusion generated energy, it is setting the conditions for success.
In 2025 the Government backed this with £2.5bn of funding for fusion energy, of which £1.3bn funds UK Fusion Energy to deliver the next stage of STEP Fusion.
UK Fusion Energy has come from UKAEA, the world’s largest national fusion laboratory and the only one with the experience of operating a fusion machine with a power plant relevant fuel mix – the Joint European Torus (JET) – for 40 years. UKAEA supports UK Fusion Energy as its Fusion Partner, bringing unrivalled expertise in plant integration and operation, as well as plasma science, robotics, materials research and fusion fuel systems. And the National Lab continues to drive new understanding with investments in its world leading spherical tokamak (MAST Upgrade).
UK Fusion Energy’s purpose is to deliver STEP Fusion and successive fusion power plants by acting as a national fusion systems integrator, and working with industrial partners to develop and deploy the technologies and capabilities required, leveraging, strengthening and amplifying the UK-based industrial and technology ecosystem.
Our progress
UK Fusion Energy has been established with integration in its DNA.
Our operating model is based on world-class partnering that brings the best capabilities together in a single, coherent framework to accelerate innovation, reduce delivery risk, and ensure that fusion technologies developed in the UK generate long-term value.
Since STEP Fusion began in 2019, we’ve built the agile, end to end design team spanning every discipline, and the digital backbone to convert design into manufacturing reality. We are now demonstrating core technologies and generating IP across the plant.
We understand this complex problem and what it takes to solve it, including how each system influences the others and what trade-offs are needed for success, with a commitment to safety in the design as our number one priority – we capture the solutions in our IP portfolio.
Next‑generation HTS magnet designs
High Temperature Super-conduction Magnets that confine fusion plasma with dramatically reduced power demand, pushing magnet performance to the forefront of global innovation.
digital engineering and design management
Laying the foundation for AI-powered digital twins that link experimental data to high-fidelity simulation – boosting accuracy, efficiency, and confidence.
Maintenance‑led design
That cleverly integrates multiple parts of a tokamak to enable faster maintenance and component upgrade, without compromising safety.
Advanced microwave gyrotron development
Improving heating efficiency and reliability, essential for sustaining a stable fusion reaction.
Digital and AI underpinning our partnerships
UK Fusion Energy is working with global digital companies to maximise the role of digital and AI in
developing its capability. The three main areas we are exploring are:
Developing fusion
AI techniques could play a significant role in plasma control, in developing and qualifying materials, and in accelerating our leading edge high performance computing simulations.
whole plant integrator
Integrating a wide range of organisations across a supply chain requires a strong digital backbone. Learning lessons from other industries and projects, UK Fusion Energy is now investing significantly
in digital approaches and is supported by Dassault Systèmes in this area.
Accelerating the schedule
Digital and AI techniques could play a significant role in reducing the time from concept to detailed design – a major opportunity for industry to develop and test new approaches.
aN iNTEGRATED DELIVERY TEAM
Delivering fusion energy is not just a technical challenge, it is an organisational one.
To deliver the fusion power plants of the future, UK Fusion Energy is now sourcing and selecting the best industrial partners to build a world leading Integrated Delivery Team. Initially through the STEP Fusion project, we will learn by delivering, fast, safely, and to a high quality; this will build our collective capability; which will help secure investment at all levels of the enterprise we create.
The unique know-how, experience and systems-level understanding developed through STEP Fusion positions UK Fusion Energy to deploy commercial fusion plants globally.
OUR PARTNERS
