Europe needs reliable, low-carbon power for its industries, cities and energy security and it will need even more in the coming decade. Small modular reactors are increasingly seen as part of the solution, but only if the European Union develops them as an industrial program rather than a series of scattered national experiments.
SMRs must be deployed as a fleet. Repetition can reduce costs and build the supply chains Europe needs. The next three years will determine whether Europe develops that capability itself or watches it emerge elsewhere.
The fleet logic
SMRs are often sold on the promise of being cheaper than large reactors. On a first-of-a-kind basis, they are not.
Their economics depend on something different: serial production.
An illustrative model by the EFI Foundation shows why: in a four-unit SMR order book, the fourth unit is around one-sixth cheaper than the first. The savings come from factory fabrication, standardized designs, established supply chains and the learning gained from each successive unit.
This has a policy implication. In the short term, no single European market will be able to anchor a fleet on its own. The order book needed to drive SMRs down their cost curve must be European in scale, otherwise large-scale deployment will remain out of reach.
The European Commission projects between 17 and 53 gigawatts of SMR capacity across the EU by 2050.
The range itself is telling: even the lower bound would require a serious industrial program; the upper bound would put Europe among the leaders in SMR deployment. The difference is implementation, not technology.
Implementation challenge
The analytical foundation for fleet deployment is already in place.
Researchers, civil society organizations and industry experts are examining the practical questions any serious SMR program must answer: where reactors could connect to the grid, how they could support coal-transition and industrial regions, what supply chains would be required and how licensing could support standardized designs rather than one-off projects.
That work gives policymakers a stronger basis for action. The question is whether Europe can turn analysis into delivery.
The Czech Republic, Poland, Romania, Bulgaria, Slovenia, France, the Netherlands, Sweden and Finland are moving toward new nuclear deployment, albeit from different starting points and at different paces.
If the EU framework fails to match this national ambition, investors, suppliers and developers will not stand by. SMR programs that could become a European competitive advantage in the global energy transition risk being overtaken by markets in North America, Asia and the United Kingdom that have already moved ahead.
Turning national projects into a European fleet means changing how risk is shared.
Nuclear projects are most exposed at the early stage, when uncertainty is highest and capital is most expensive. EU and member state tools should help absorb that risk so private investment can follow.
Sweden has adopted a model combining state loans, two-way contracts for difference and a risk- and profit-sharing mechanism between developers and the government.
It also means treating licensing as a European competitiveness issue. Four SMR projects in four member states cannot mean four separate licensing processes.
National regulators will remain responsible for safety, but Europe needs a credible pathway for convergence. This includes strengthening the role of the European Nuclear Safety Regulators Group and expanding reliance-based frameworks that allow member states to build on one another's licensing assessments and avoid duplicating reviews.
Finally, reactors are not just designs. They are pressure vessels, components, skilled welders, engineers and supply chains. If Europe wants an SMR fleet, it must rebuild the industrial muscle to deliver one.
Strategies matter. But reactors generate electrons. The work of the next three years is to turn a decade of well-written nuclear strategies into a European fleet on the grid.
Sign up to The Parliament's weekly newsletter
Every Friday our editorial team goes behind the headlines to offer insight and analysis on the key stories driving the EU agenda. Subscribe for free here.