Nuclear Power Generation in European Union 2026: Industry Statistics & Trends

The nuclear power generation industry in the European Union encompasses the operation of nuclear reactors to produce baseload electrical energy across member states. The industry serves as a cornerstone of the EU's low-carbon energy strategy, accounting for a significant share of its domestic electricity grid stability. According to preliminary data released by Eurostat, gross electricity generation from nuclear power plants within the EU reached 650,648 GWh in 2025, which reflects a modest 0.2% increase over the previous year. Moving forward, the industry is transitioning toward long-term asset management, reactor lifetime extensions, and the deployment of small modular reactors (SMRs) to m

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What does the Nuclear Power Generation in European Union industry cover?

This industry comprises establishments primarily engaged in operating nuclear electric power generation facilities that utilize nuclear fission to produce bulk electric energy. The scope includes the generation of electrical energy intended for transmission and distribution networks, as well as the production of nuclear heat for ancillary industrial or district heating applications. It excludes upstream mining and processing of uranium, while specifically focusing on the utilities responsible for operating reactors and handling localized fuel assemblies.

• •In 2024, there were 12 EU member states operating commercial nuclear reactors.
• •The primary industry output is gross electricity, which accounted for 23.2% of the EU's total electricity production mix in 2025.
• •The scope also tracks nuclear heat production, which totaled 154,856 thousand tonnes of oil equivalent (toe) across the bloc in 2024.

Who operates in the industry and how is it structured?

The European Union's nuclear power generation landscape is highly consolidated and dominated by state-backed national utilities due to the immense capital requirements and strategic importance of energy security. Production capability is geographically concentrated, with a small number of countries generating the vast majority of the bloc's nuclear-derived power. Smaller member states maintain single or double-reactor operations that feed directly into national grids via regulated state entities.

• •France is the dominant operator in the market, commanding a 58.6% share of the EU's total nuclear electricity generation in 2024.
• •The top four producing countries, France, Spain, Sweden, and Belgium, collectively generated 79.6% of the EU's total nuclear electricity output in 2024.
• •Only 3 member states (Germany, the Netherlands, and France) maintained active fuel enrichment plants in 2024, representing a total capacity of 16,000 tSWU.

What drives demand in the industry?

Demand for nuclear power generation within the EU is driven by the urgent mandate for decarbonization and the necessity of stable, weather-independent baseload electricity. As renewable energy sources like wind and solar experience fluctuations, nuclear assets provide critical grid synchronization and reliability. Furthermore, geopolitical shifts and the desire to reduce dependence on imported fossil fuels have reinforced the strategic demand for domestic nuclear asset preservation.

• •Nuclear power sustained a critical baseload demand share of 23.2% of total EU electricity generation in 2025.
• •In specific member states, domestic demand reliance is extremely high, with France sourcing 67.3% and Slovakia sourcing 61.6% of their electricity from nuclear power in 2024.
• •The ongoing displacement of high-emission fuels drives demand, as brown coal supply dropped 7.7% and hard coal supply dropped 3.2% in 2025.

Who are the notable companies in the industry?

Competition in this sector is limited by heavy government ownership, strict regulatory entry barriers, and the localized monopolistic nature of electricity transmission grids. Operators focus on cost-efficient plant life extensions and optimization of capacity factors rather than standard market-share acquisition. The landscape features massive utilities that are either entirely state-owned, publicly listed with state majority stakes, or multinational energy conglomerates.

• •Electricite de France (EDF) operates as the largest nuclear fleet manager in the European Union, overseeing all commercial reactors in France.
• •Endesa SA and Iberdrola SA are primary operators managing the nuclear generation asset portfolio in Spain.
• •Vattenfall AB and Fortum Oyj maintain significant nuclear generation operations and asset stakes across Sweden and Finland.
• •CEZ AS operates as the state-backed utility responsible for the nuclear generation infrastructure in Czechia.

What are the recent trends and outlook?

The EU nuclear industry is experiencing a bifurcated trend where long-term historical declines are clashing with a recent stabilization and legislative renaissance. While total EU nuclear generation dropped by 29% between 2006 and 2024 due to high-profile phase-outs like Germany's, output has marked consecutive annual increases through 2024 and 2025. The current outlook focuses on deployment frameworks for Small Modular Reactors (SMRs) and major reinvestment programs to extend operational lifespans of existing fleets.

• •Preliminary figures for 2025 show nuclear electricity supply reaching 650,648 GWh, continuing a stabilization trend from 2024's 649,524 GWh.
• •Contradicting the broader historical decline, seven countries including Romania (+93.8%) and Finland (+42.3%) increased production significantly between 2006 and 2024.
• •Fabrication of fresh fuel elements within the EU dropped by 19.4% between 2013 and 2024, highlighting historical contractions in local supply chains.

How is the industry regulated?

Nuclear power generation in the EU is subject to stringent safety and environmental regulations managed under the Euratom Treaty alongside national nuclear safety authorities. Compliance focuses heavily on radioactive waste management, decommissioning funds, and strict operational safety margins overseen by the European Nuclear Safety Regulators Group (ENSREG). Legislative updates have pivotally repositioned the industry's investment compliance frameworks within European clean energy initiatives.

• •The European Commission formally adopted a Complementary Climate Delegated Act in March 2022, officially including specific nuclear activities in the EU Taxonomy for sustainable finance.
• •Operations comply with strict oversight from national bodies such as the Autorité de sûreté nucléaire (ASN) in France and the Consejo de Seguridad Nuclear (CSN) in Spain.
• •The sector must adhere to strict environmental monitoring mandates under Article 35 of the Euratom Treaty to verify ambient radioactivity controls.

Government, statistical and trade sources used for this Claight analysis.

• Eurostat Nuclear Energy Statistics 2025 ·
• Eurostat Energy Supply Statistics 2026 ·
• European Commission Directorate-General for Energy ·
• International Atomic Energy Agency (IAEA) Reference Data Series 2025