The Finnish Model: Independence and Technical Rigor
A defining feature of Finland’s nuclear regulatory system is a strong legislative framework, competent license holders, and an independent authority, the Radiation and Nuclear Safety Authority (STUK). STUK’s role goes beyond formal licensing; it also performs technical evaluations and is often involved already in the early stages of project development.
The Finnish model has consistently aimed for predictability. The application of Finland’s nuclear regulatory guidelines (YVL), the possibility to propose alternative solutions, and early interaction between the authority and operators have created an environment where a high level of safety and manageable investment risk can be achieved in parallel. At the same time, outcomes have also depended on the capabilities of license holders. Technical expertise, project management, and the ability to meet regulatory expectations are, naturally, a critical part of the overall picture.
For new-build projects, the regulatory model has been shaped in practice through major projects such as Olkiluoto 3, Onkalo and Hanhikivi-1. These projects have driven both the authority and industry to develop their practices and learn. That accumulated experience forms the foundation of today’s model. The key question now is how that learning is carried forward: can regulation evolve in a way that maintains a high level of safety while making future projects more predictable and manageable?
Recent Developments in the Finnish Nuclear Energy Act
Finland’s nuclear legislation is currently undergoing a significant transformation. A new Nuclear Energy Act is under parliamentary review, and STUK’s draft regulations are out for consultation. This is a defining moment: the framework now being shaped will have a major impact on the future of new nuclear projects in Finland.
Technological development, more diverse use cases, and changes in market dynamics have made the existing legislation partly outdated. The government proposal for a new Nuclear Energy Act, introduced in 2026, seeks to address this by creating a regulatory framework that is technology-neutral, risk-informed, and better suited to a wider range of project types.
Key objectives include streamlining licensing processes, enabling modular and replicable solutions, and supporting the deployment of new technologies, particularly small reactors. At the same time, regulations are being opened to new applications such as district heating. Importantly, this is not about lowering safety standards; overall safety remains at the core.
The preparation has involved close interaction with industry stakeholders, and Steady Energy has actively participated in commenting on STUK’s draft regulations. In addition, completed concept evaluations (including LDR-50) have helped illustrate to the authority what kinds of technologies future licensing processes may involve. From our perspective, stakeholder input has genuinely been heard. The success of the reform will determine whether Finland can gain a real competitive edge, or whether its impact will ultimately remain limited.
Regulator’s Guidelines Update for Advanced Reactors
While legislation defines the framework, the real flexibility of the system is determined in how regulation is applied in practice. In Finland, this is reflected in the transition from YVL guidelines to a new set of STUK regulations.
STUK’s aim is to move towards a more goal-oriented and risk-informed regulatory approach. This enables a wider range of technical solutions to be considered without compromising safety. The shift is particularly important for small reactors, whose safety concepts often rely on simpler designs and passive systems.
This new approach has already been tested in practice. In the concept evaluation pilot for the LDR-50 plant, a new type of licensing phase was tested, allowing key safety solutions to be reviewed at an early stage. This made it possible to assess the suitability of technical solutions, as well as to test a new type of license application while the legislative framework was still evolving in parallel.
From a practical licensing and permitting perspective, a key question is how the information required across different licensing and permitting processes aligns with the phased progression of projects. Environmental impact assessments, zoning processes, and new regulatory steps all require different types of information at different stages and not all of it can, or should, be produced upfront. In many cases, the same underlying issues are examined at multiple stages, but with increasing levels of detail. From Steady Energy’s perspective, a modular licensing model can only work if information is generated and used at the points where it naturally emerges in project development, and if assessments carried out at different stages form a consistent continuum. In practice, this means that conclusions reached early on, such as during site selection or concept evaluations, should remain valid and usable in later stages.
Ultimately, the competitiveness of the regulatory system is determined in how it is applied. If a high level of safety can be combined with practical flexibility, Finland has a real opportunity to position itself as a frontrunner in next-generation nuclear solutions.
Progress on Small Modular Reactors (SMRs) — Finland as a Leading Testbed
In contrast to the fragmented EU landscape, Finland has positioned itself as one of the most advanced environments for early SMR deployment. This is not only a result of policy alignment, but also of practical regulatory engagement and concrete use cases.
One of the most notable drivers is the decarbonization of district heating. Several Finnish cities are actively exploring alternatives to fossil-based heat production, and small reactors have emerged as a technically viable option for providing stable, low-carbon heat at scale. This creates a clear and immediate application for SMRs beyond electricity generation, which is still relatively rare in most European markets.
At the same time, Finland’s regulatory authorities have taken a proactive approach to pre-licensing and early-stage engagement. Processes such as concept evaluations allow developers to test key safety solutions and licensing approaches before entering formal licensing phases. This reduces uncertainty and helps align expectations between regulators and project developers at an early stage.
Importantly, this approach does not eliminate regulatory rigor, but it changes when and how key questions are addressed. By shifting parts of the assessment earlier in the project lifecycle, Finland enables a more structured progression toward licensing decisions.
Taken together, these elements make Finland not just a potential deployment market, but a practical testbed for how SMR projects could be implemented in a European regulatory context.
Despite this growing institutional support in EU, a key structural challenge remains: the absence of a harmonized licensing framework. SMR developers aiming for multi-country deployment still face the need to undergo separate national licensing processes, each with its own requirements, timelines, and regulatory interpretations. This limits one of the core economic advantages of SMRs and creates uncertainty in project planning and cost estimation.
To address this challenge, several European regulatory authorities, including those in Ukraine, Poland, Sweden, Finland, and the Czech Republic, have initiated a collaborative assessment of Steady Enery’s LDR-50 plant concept. The work builds on earlier evaluations conducted by STUK, while each authority continues to carry out its own review in accordance with national regulatory requirements.
Market Signals
Beyond policy and regulation, market dynamics are beginning to reinforce the case for SMRs. Energy-intensive industries are increasingly seeking reliable, long-term sources of low-carbon heat and electricity to support their decarbonization strategies.
Electrification alone is not always sufficient or cost-effective, especially for industrial processes requiring high-temperature heat. In this context, nuclear energy (including SMRs) offers a potential solution that combines reliability with low lifecycle emissions.
At the same time, long-term price stability is becoming a more prominent consideration. Volatility in energy markets has highlighted the value of predictable baseload generation, particularly for industries with continuous demand profiles.
While most SMR projects in Europe are still in early stages, these underlying demand signals suggest that the potential market is not purely policy driven. If regulatory and financing frameworks can be aligned, there is a credible pathway for SMRs to become a competitive component of Europe’s future energy mix.
Public and Political Outlook
Within this broader European context, Finland stands out for its consistent and stable approach to nuclear energy policy. Support for nuclear power extends across the political spectrum, and long-term energy strategies have maintained continuity regardless of changes in government.
Public acceptance is also notably high by European standards. Surveys have consistently shown that a majority of Finns view nuclear energy as a necessary component of a low-carbon energy system. This societal acceptance reduces one of the key sources of project risk that is often present in other countries.
In Finland, this stability translates into a more predictable operating environment. It enables long-term planning, reduces the risk of abrupt policy reversals, and supports the development of projects that may span multiple political cycles.
Conclusion: Finland at the Forefront of Europe’s Nuclear Future
The realities of decarbonization, energy security, and system reliability are driving a gradual shift toward broader acceptance at the EU level. At the same time, regulatory approaches remain largely national, resulting in significant differences in how quickly new nuclear projects can move from concept to deployment.
In this landscape, Finland distinguishes itself through a combination of regulatory predictability, institutional competence, and openness to innovation. Its ongoing legislative reform and evolving regulatory practices demonstrate an effort to reconcile two objectives that are often seen as competing: maintaining a high level of safety while enabling more efficient and scalable project development.
While EU-level initiatives are beginning to improve the broader framework for nuclear energy, practical deployment will continue to depend on national systems that can translate policy into workable licensing processes. Finland is currently among the few countries where this translation is being actively and coherently addressed.
The implementation of the new Nuclear Energy Act, the evolution of STUK’s regulatory approach, and the first concrete SMR projects will together determine whether Finland can fully capitalize on its early-mover advantage. If successful, it may not only strengthen its own position, but also serve as a reference model for how next-generation nuclear can be deployed across Europe in the 2030s.