Europe Nuclear Decommissioning Market Size & Share Analysis - Growth Trends and Forecast (2026 - 2031)

Europe Nuclear Decommissioning Market Trends and Insights

Research Reactors to Dominate the Market

• The decommissioning of research reactors is in a phase where it's growing due to the reduced requirement of research reactors. The shifting focus from nuclear power has led to a reduction in research activities associated with nuclear technology.
• As of May 2022, there were 172 operational nuclear reactors in Europe. France has by far the most operational reactors, at 56 units. In contrast, the United Kingdom has the most significant number of permanently shut-down reactors, at 34 units.
• The decommissioning activities of several research reactors have been initiated because of the higher costs associated with regulatory compliances over time. Moreover, sometimes the cost of maintaining research reactors can be more than the decommissioning cost, and hence, the market for such reactors is likely to grow during the forecast period.
• Further, in early 2020, French multinational electric utility company ENGIE expanded its partnership on research & development of nuclear technologies with the French Alternative Energies and Atomic Energy Commission, CEA. The two partners are expected to focus on several aspects of nuclear energy, including decommissioning, dismantling, and decontamination of nuclear installations, control of radiation protection, and management of radioactive releases and waste.
• Moreover, the policy to curtail nuclear power generation in European countries will decimate the requirement for research reactors, which is expected to drive the decommissioning market in the near future.

France to Witness Significant Growth

• France is heavily dependent on nuclear power for its electricity generation, and the country has about 58 nuclear power reactors whose infrastructure's overall average age is 30 years.
• In 2021, France had 56 active nuclear reactors. The number of nuclear reactors in France peaked from 2000 to 2005, with 59 nuclear reactors actively generating electricity.
• The country aims to diversify its energy mix by lowering nuclear energy generation from 75% to 50% of the total electricity generation by 2025. As a result, the country's nuclear decommissioning market is expected to grow.
• Moreover, the French government is aiming at nuclear decommissioning in its Multiannual Energy Programme, which aims to reduce the contribution of nuclear power in the French energy mix by 25% by 2035. As a part of the program, 14 power reactors will be shut down by 2035.
• In February 2020, the country began gradually shutting its aging Fessenheim plant. The removal of the fuel is expected to be completed by the summer of 2023, and the complete decommissioning is expected to be completed by 2040 at the earliest. The move fits into the government's broader energy strategy to reduce French dependence on nuclear energy from supplying 75% of its electricity to about 50% by 2035.
• Furthermore, in September 2021, Electricité de France's (EDF) Decommissioning and Waste Management Directorate and International Atomic Energy Agency agreed to work together to help countries to strengthen technology and human resources development for decommissioning nuclear power reactors.
• Decommissioning is projected to become an increasingly important part of the nuclear sector activity in the coming decades as many reactors are expected to reach their technical lifetime very soon, increasing the demand for decommissioning and dismantling services.

Regulatory Landscape

The regulatory backbone for nuclear decommissioning in Europe is anchored by Council Directive 2011/70/Euratom, which requires EU Member States to maintain national legislative, regulatory, and organizational frameworks for the safe management of spent fuel and radioactive waste, including decommissioning. Alongside this, the European Commission provides policy guidance and monitoring through its nuclear decommissioning and waste management work, while IAEA decommissioning safety standards are used as reference points when developing or assessing national requirements.

For funding and implementation, the 2021-2027 EU framework includes dedicated Euratom assistance instruments, notably Council Regulation (Euratom) 2021/100 and Council Regulation (EU) 2021/101. These support decommissioning and waste management at specific legacy sites, including in Bulgaria, Slovakia, Lithuania, and European Commission Joint Research Centre facilities. The European Commission JRC also runs its Decommissioning and Waste Management programme across sites in Geel, Karlsruhe, Ispra, and Petten, linking regulatory compliance to multi-year dismantling, waste handling, and site remediation work.

Value Chain Analysis

The Europe nuclear decommissioning value chain begins with national authorities and plant owners defining end-state and licensing pathways under frameworks aligned to Euratom obligations (including Directive 2011/70/Euratom) and harmonization efforts such as WENRA safety reference levels for decommissioning. Early activities cover characterization, radiological surveying, engineering design, and work planning. Execution then covers decontamination, dismantling, segmentation, packaging, and site remediation, followed by downstream logistics for interim storage, transport, and final disposal routes where available.

Execution services are delivered by a mix of utilities, prime contractors, and specialized dismantling and waste-management firms, supported by equipment and technology vendors (including remote handling, cutting tools, containment, and measurement). Industry coordination and supplier discovery are supported by bodies and platforms such as nucleareurope, with a supply chain database spanning thousands of firms, and by collaboration networks such as the Coordination Network on Decommissioning, which help standardize practices and share lessons learned. Program structures increasingly reflect multi-decade management and complex tendering, illustrated by large-site transitions and major tenders such as Ignalina core dismantling in Lithuania and long-duration UK hazard-reduction frameworks at sites such as Sellafield.

Market Opportunities and Future Outlook

A key near-term opportunity is the shift of major sites from post-shutdown preparation into full-scale, regulator-authorized execution, which increases demand for integrated services across dismantling, waste conditioning, and long-horizon program management. One example is France, where a government decree dated 3 May 2026 authorized the start of the full decommissioning phase for EDF's two 900 MW Fessenheim reactors, anchoring decades of contracted work through the stated end date.

Technology-led gaps also show up in first-of-a-kind dismantling scopes and hard-to-access components that require bespoke tooling and robotics rather than standard construction methods. In Lithuania, the Ignalina program, through Altra, launched an international tender on 10 July 2026 for the design and dismantling of RBMK-1500 reactor cores, pointing to demand for specialized remote cutting, characterization, and waste-packaging solutions that can be reused across other complex legacy assets. In parallel, the EU-level 2021-2027 decommissioning assistance framework for select Member State sites and European Commission JRC facilities continues to support engineering, waste-management, and compliance work tied to defined programmes and milestones.