As innovation takes fusion technologies to the next level, the European Fusion Association’s Tom Reynolds discusses what Europe must prioritise in order to lead in the fusion race
Europe’s fusion sector is entering a new phase — one defined less by scientific possibility and more by industrial delivery. As investment accelerates, supply chains emerge, and governments sharpen their strategic priorities, the debate around fusion is shifting from if the technology can work to how it can be deployed at scale.
The Innovation Platform spoke to Tom Reynolds, Head of Communications at the European Fusion Association, to discuss what Europe must do to deliver fusion from a concept to a reality.
Why is the current way of talking about fusion no longer sufficient?
Fusion is still often discussed in terms of scientific progress and timelines – whether it will reach the grid in the 2030s, or later. That framing is increasingly out of date.
The more immediate question is not when fusion will arrive, but how it will be delivered – and where the industrial capability to do so will take root. The discussion is shifting from scientific feasibility to industrial execution.
What has changed in the development of fusion itself?
Fusion is moving from publicly funded science into a more complex phase of industrial development. Private capital is increasing, national programmes are shifting towards deployment, and early commercial agreements are also starting to emerge.
At the same time, the nature of the challenge is changing. Physics is no longer the only limiting factor. Execution is now too.
Building a fusion industry requires regulatory clarity, supply chains capable of scaling, financing models suited to long timelines, and governance aligned with industrial delivery. These factors will determine how quickly fusion moves from demonstration to deployment.
What are the real barriers to commercialisation today?
The challenge is not a single constraint, but the interaction between several.
Regulatory uncertainty can delay projects. Supply chains often lack the visibility needed to scale. Financing remains sensitive to long timelines and unproven delivery models. Governance structures still reflect research-era assumptions.
From an industry perspective, these risks are cumulative.
This is where the European Fusion Association (EFA) has a practical and valuable role to play – bringing together developers, suppliers, and policymakers to highlight where delivery assumptions do not yet line up. In many cases, the issue is not technical capability, but whether the conditions exist for companies to commit capital and scale activity with confidence.
Why is there increasing scrutiny around fusion timelines and costs?
Increased scrutiny reflects a shift in expectations.
As fusion moves closer to commercialisation, the focus is turning from technical potential to practical delivery – how systems are built, how costs evolve, and how learning occurs in practice.
Recent analysis questioning cost trajectories reinforces the need for discipline. Commercial viability will depend not only on technical progress, but on whether credible pathways to deployment are established.
This is a sure sign of an industry that is really starting to mature.
How is the global landscape evolving?
It’s becoming much more structured.
The United States continues to attract the majority of private investment, supported by a policy environment oriented towards commercialisation. The United Kingdom has aligned regulation, funding, and delivery through a national programme. China is investing at scale, with a focus on building industrial capability.
Fusion is no longer just a scientific endeavour. It is becoming part of a broader and much more global contest over industrial capacity and supply chains.
The regions that align policy, capital, and industry most effectively will shape what this sector becomes in the future.
What does this mean for Europe’s position?
Europe has many of the right ingredients: a strong research base, an emerging private sector, and an experienced industrial supply chain.
But these strengths are not yet fully aligned.
The challenge is coordination and execution. This means moving beyond a model centred on research, towards one that supports industrial development – with fit-for-purpose regulation, credible project pipelines, and governance that reflects delivery realities.
In this context, EFA has an important role to play as an industry interface – helping ensure that policy design reflects the needs of technology developers and supply chain companies alike.
What will ultimately determine where fusion is developed and scaled?
Fusion will not be commercialised in a single step, but through a sequence of projects.
The regions that provide the most coherent environment for those projects – combining regulatory clarity, industrial coordination, and credible pathways to deployment – will ultimately shape the sector.
There is, of course, significant potential for public-private partnerships to play a role in the delivery of fusion, but only if they reduce risk across the full delivery pathway, not just provide funding.
For industry, that broader environment determines whether investment decisions can be made with confidence.
Fusion will be developed somewhere. Europe has the industrial depth to play a leading role – the defining question is whether it can align that capability at the pace required.
Please note, this article will also appear in the 26th edition of our quarterly publication.
