Publié chaque année, le Rapport annuel de l’AEN présente un aperçu des activités et publications de l’AEN pour une année donnée, ainsi que les derniers développements du secteur de l’énergie nucléair...

Published every year, the NEA Annual report includes an overview of NEA's activities and publications produced during the year, as well as the latest developments in nuclear energy sector around the ...

Publié chaque année, le Rapport annuel de l’AEN présente un aperçu des activités et publications de l’AEN pour une année donnée, ainsi que les derniers développements du secteur de l’énergie nucléair...

L’année 2020 a été marquée par une forte activité et des résultats importants pour l’AEN, en dépit de la pandémie de Covid-19. L’Agence s’est rapidement adaptée à une situation pourtant inédite et a ...

Published every year, the NEA Annual report includes an overview of NEA's activities and publications produced during the year, as well as the latest developments in nuclear energy sector around the ...

The NEA Annual Report 2019 provides an overview of the status of nuclear power in NEA member countries and illustrative descriptions of the Agency's activities and international joint projects. 2019 ...

The new NEA initiative was announced at the 28th meeting of the Conference of the Parties of the United Nations Framework Convention on Climate Change (COP28). 

While the ongoing war in Ukraine has not thus far resulted in any major radiological threats to public health and safety, it is the first time in history that a country with significant nuclear and r...

The NEA organised the first International School on Simulation of Nuclear Reactor Systems (SINUS) on the topic of Reactor single- and multi-physics simulations based on Light Water Reactor (LWR) Unce...

The Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) and its expert groups co-ordinate benchmark activities on Reactor Single- and Multi-Physics. The benchmark ac...

P2M includes in-pile tests and Post-Irradiated Examinations in Hot-Laboratory to assess the operational margins at high power.

The Working Party on Multi-scale Modelling of Fuels and Structural Material for Nuclear Systems (WPMM) was established to deal with the scientific and engineering aspects of fuels and structural mate...

Recent performance breakthroughs in Artificial Intelligence (AI) and Machine Learning (ML) have led to unprecedented interest in AI/ML among nuclear engineers. However, the lack of dedicated benchmar...

The Expert Group on Reactor Systems Multi-Physics (EGMUP) advances the state of the art in establishing processes and procedures for certifying experimental data and benchmarking multi-physics multi-...

Under the guidance of the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS), the Expert Group on Physics of Reactor Systems (EGPRS) performs specific tasks associa...

The International School on Simulation of Nuclear Reactor Systems (SINUS) provides hybrid, hands-on-training encompassing multiphysics modelling and simulation (M&S) and associated validation, verifi...

The NEA will participate in the 28th UN Climate Change Conference of the Parties (COP28) in Dubai, United Arab Emirates, to shed light on nuclear energy’s role in addressing climate change.

Accelerating SMRs for Net Zero will establish a practical, solutions-oriented platform with a defined plan of work for collaboration and knowledge exchange to support decision makers in maximising th...

The NEA participated in COP 26 in Glasgow, United Kingdom, to shed light on nuclear energy’s role in addressing climate change.

The NEA held its second Risk Communication Training Course on 13-16 November in Abu Dhabi.

NEA Leaderership Series brought together three leaders in the nuclear sector to discuss what creates effective leadership and why it's essential for the nuclear sector's success. 

NEA organised the first official visit to Ghana on 1-6 November 2023.

As a low-carbon electricity source, nuclear energy has a role to play in global climate change mitigation efforts.

Declaration draws on NEA analysis which shows that that tripling nuclear energy capacity by 2050 provides the world with a realistic and practical path to meet net zero carbon emissions goals. 

The Working Group on Supply Chain (WGSUP) works to provide a mechanism for nuclear safety regulators and technical support organizations (TSOs) to share their knowledge and experience on regulatory a...

The 13^th National Workshop organised by the NEA Forum on Stakeholder Confidence (FSC) took place on 23-25 October in Ohio, United States.

The NEA hosted the 16th edition of information exchange meetings on actinide and fission product partitioning and transmutation (16IEMPT).

NEA workshop addresses the importance of a secure supply chain of medical radioisotopes to save lives.

NEA News is the professional journal of the NEA. It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nuclear safety and regulatio...

NEA Director-General William D. Magwood, IV explains how an energy mix that includes nuclear power can help achieve global climate change goals.

Climate change will create specific risks and challenges for nuclear power plants and the electricity system as a whole. Extreme weather events caused by climate change – such as floods, storms, heat...

The NEA participated in the COP 26 United Nations Climate Change Conference from 31 October to 12 November 2021 for dialogues on the role that nuclear energy could play in achieving the decarbonisati...

This event is part of the OECD COP26 Virtual Pavilion. It is available on replay.

The NEA and CAEA held the NEA-China Forum on Nuclear Decommissioning and Radioactive Waste Management in Beijing. 

The Working Group on Reactor Oversight (WGRO) works to provide a mechanism for nuclear safety regulators and Technical Support Organisations (TSOs) to share their knowledge and experience on both, th...

The Steering Committee for Nuclear Energy held its 146^th Session in Paris.

Under the guidance of the Nuclear Science Committee (NSC), the Working Party on Scientific Issues and Uncertainty Analysis of Reactor Systems (WPRS) studies the reactor physics, fuel performance, an...

The opening session of the Sixth International Conference on Geological Repositories (ICGR-6) in Helsinki, Finland. Photo: Krystal Kenney

There is consensus within the international scientific commun...

Suppliers play a critical role in the construction and operation of nuclear power plants. With a declining number of nuclear grade suppliers and a loss of skills in some regions, supply chain oversig...

The CNRA-MDEP workshop was held at the NEA Headquarters in Boulogne-Billancourt (France) on 5-6 November 2018 on the subject of nuclear supply chain management activities. The following topics were s...

The benchmark will predict the Critical Heat Flux (CHF).

In November 2023, the NEA Data Bank held two beginner level courses in Paris, France.

On 11-12 October 2023, the NEA Task Group on Improving the Gender Balance in the Nuclear Sector (GB-TG) met in Paris to discuss ongoing work and future activities.

FIDES-II member assembled at the Japan Atomic Energy Agency (JAEA) in Mito, Japan.

In preparation for INEX-G, the NEA Expert Group on the Sixth International Nuclear Emergency Exercise held a briefing session on 19 October.

The NEA ATLAS3 and NEA ETHARINUS projects organised a workshop on 7-9 November 2023. 

The Fire Incidents Records Exchange (FIRE) Project started in 2002 and phase 7 of the project began in 2023 for a duration of three years, with 14 countries currently participating. The main purpose ...

The NEA and IAEA jointly organised an international workshop in Vienna, Austria, on 2-6 October 2023.

Established in 2014, the WGDECOM unites 19 experts from 12 countries in developing a process to better share radiological protection data.

The NEA Second Framework for Irradiation Experiments (FIDES-II) supports the fuel and material experimental needs of nuclear safety regulators, technical support organisations, research institutions ...

International workshop convened experts in the field to United States.

Over the past two decades, the safety case has become a powerful and essential tool to support decision making for every stage of a geological disposal programme. Now, an increasing number of nationa...

The Integration Group for the Safety Case (IGSC) has been organising a series of symposia every five years focusing on the development of a competent and robust safety case since 2007, in co‑operatio...

The event examines how nuclear safety culture is affected by the national cultural context of the country operating a nuclear facility. It brings together experts representing both the nuclear indust...

The mission of the CRPPH Working Party on Nuclear Emergency Matters (WPNEM) is to improve nuclear emergency management systems within member countries, and to share its knowledge and experience widel...

Nuclear emergency preparedness and response management are essential components to ensure safety and radiation protection in any nuclear or non-nuclear country. While international guidelines for eme...

The Working Group in Public Communication of Nuclear Regulatory Organisations (WGPC) provides a forum for nuclear regulatory organisation communicators and outreach officers to exchange information, ...

The Regulators' Forum (RF) is made up of regulators who participate in the work of the RWMC and CDLM, helping to address common regulatory issues of NEA member countries.

The Committee on Nuclear Regulatory Activities (CNRA) is an international committee created in 1989 to guide the NEA concerning safety in the regulation, licensing and inspection of nuclear installat...

The NEA International Criticality Safety Benchmark Evaluation Project (ICSBEP) and International Reactor Physics Experiments Evaluation Project (IRPhEP) Technical Review Groups, and the Shielding Int...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire.

The Nuclear Law Bulletin is a unique international publication for both professionals and academics in the field of nuclear law.

The Critical Heat Flux (CHF) benchmark exercise of the Task Force on Artificial Intelligence and Machine Learning for Scientific Computing in Nuclear Engineering leverages the recently published CHF ...

Le Bulletin de droit nucléaire est une publication internationale unique en son genre destinée aux juristes et aux universitaires en droit nucléaire. Ses lecteurs bénéficient d’informations exhaustiv...

The Halden Reactor Project has been in operation at the Institute for Energy Technology (IFE) in Norway since 1958 and is the oldest NEA joint project. It brings together a large international techni...

Scheme of the ROSA LSTF facility, JAEA

The Rig-of-safety Assessment (ROSA) Project aimed to resolve issues in thermal-hydraulics analyses relevant to light water reactor (LWR) safety using the Japa...

^{View of the ATLAS experimental loop. KAERI, Korea}

The Advanced Thermal-hydraulic Test Loop for Accident Simulation (ATLAS) Project was referenced in The Fukushima Daiichi Nuclear Power Plant Accident...

Left: Scheme of Studsvik LOCA test facility Right: Microstructure of fragmented nuclear fuel, Studsvik

Photos: SFP testing. Left: fuel assembly after a Zr fire; right: fire ignition test. SNL/USNRC.

The goal of the Sandia Fuel Project was to provide experimental data relevant for hydraulic and ignitio...

Scheme showing the technical scope of NEA ICDE project activities, NEA 

Common-cause failure (CCF) events can significantly affect the availability of safety systems of nuclear power plants. In recog...

Scheme of the PKL facility, Framatome GmbH.

The SESAR Thermal-hydraulics (SETH) Project began in 2001 and consisted of thermal-hydraulic experiments in support of accident management, which were ca...

Scheme of the THAI+ facility, Becker Technologies.

The experimental investigations carried out in the frame of the THAI (2007-2009), THAI-2 (2011-2014) and THAI-3 (2016-2019) projects contributed s...

In a core melt accident, if the molten core is not retained in-vessel despite severe accident mitigation actions, the core debris will relocate to the reactor cavity region and interact with the stru...

Image: Microscopic examination of U-bearing particles collected at Fukushima-Daiichi, JAEA

TCOFF Phases

First Phase (2017-2020)

The Thermodynamic Characterisation of Fuel Debris and Fission Products ...

General view of the EREC test facility BC V-213, source: EREC

There are several VVER-440/213* type nuclear power plants operating in the Czech Republic, Hungary, Slovak Republic, Russia and Ukraine...

PKL facility. Photo: FRAMATOME, Germany

The Primärkreislauf-Versuchsanlage (Primary Coolant Loop Test Facility [PKL]) is a facility owned and operated by Framatome GmbH (formerly AREVA NP) in Erlange...

Scheme of the PSB-VVER facility, EREC

The NEA PSB-VVER project provided unique and useful experimental data for code validation using the PSB-VVER test facility. The PSB-VVER facility is a large-scal...

View of the RASPLAV-3 Facility.

The Material Scaling (MASCA) Project was a follow-up of the RASPLAV Project and investigated in-vessel phenomena during a severe accident with core melt. Specifica...

Fire protection layer for electrical cables

The Stress Corrosion Cracking and Cable Ageing Project (SCAP) lasted four years (2006-2010). The project’s main objectives were to:

• establish two comple...

The INCA experiments will provide comparative data on the irradiation induced creep of current Zr alloys and Cr coated samples

The NEA Radioactive Waste Management Committee (RWMC) created the Ad-hoc Group on the Extended Storage and Transportation (AhGEST) in 2021. Following the work on these two topics, AhGEST presented it...

Applications for the Nuclear Risk Communication Training Course (RCTC) are now closed.

Following the first edition of the Nuclear Risk Communication Training Course, the NEA will host the 2023 sessio...

The Shielding Integral Benchmark Archive and Database (SINBAD) database contains compilations for 46 reactor shielding, 31 fusion neutronics and 23 accelerator shielding experiments.

Current status and future actions to ensure the reliable supply for molybdenum-99 (⁹⁹Mo), and a conversation on a new generation of innovative radioisotopes for diagnostics and therapy

The NEA hosted...

The Forum on Stakeholder Confidence (FSC) was established by the NEA Radioactive Waste Management Committee (RWMC) in 2000 and serves as a platform for understanding and enhancing stakeholder engagem...

As part of the NEA Global Forum on Nuclear Education, Science, Technology and Policy, the Rising Stars Programme leverages the weight of the Agency and the academic institutions to build new pipeline...

A new collaboration with the EPRI and the NEA will focus on waste management strategies for small modular reactors.

The International Framework for Nuclear Energy Cooperation (IFNEC) hosted its first Ministerial Conference since the COVID-19 pandemic on 1-3 November 2023. Organised in co-operation with the Ghana A...

RASPLAV-A-Salt Facility, EREC.

The RASPLAV* Project was regarded as a successor to the Three Mile Island Vessel Investigation Project (TMI-VIP) completed in 1993. The TMI-VIP Project was set up t...

Control room, PAKS NPP.

Software-based systems are used and retrofitted in operating nuclear power plants worldwide. The failure modes of both hardware and software in these systems are to some ext...

JAEA  High-temperature Engineering Test Reactor Photo: Japan Atomic Energy Agency (JAEA)

The Committee on the Safety of Nuclear Installations (CSNI) Task Group on Advanced Reactor Experimental Facil...

NEA and CNIC announced plans for collaborative efforts to help ensure the supply of medical radioisotopes.

Illustration of the Horonobe Underground Research Laboratory and locations of the in situ experiments planned in each of the three HIP Joint Project task

The Horonobe International Project (HIP) is a...

There is significant international interest in the effects of temperature on criticality safety evaluations. Improved access to nuclear data, notably thermal scattering data S(α,β) for hydrogen in ic...

Encouraging greater cohesion of social sciences and STEM to push the nuclear sector forward

The NEA Global Forum on Nuclear Education, Science Technology and Policy (the NEA Global Forum) held a coun...

At the request of its member countries, the NEA became involved in global efforts to ensure an economically sustainable secure supply of molybdenum-99/technetium-99m. This final concluding report of ...

Medical Radioisotopes

This report includes information provided confidentially by supply chain participants to support this new work of the NEA, which follows previous work undertaken by the High-level Group on the Securi...

Nuclear technology covers diverse subjects such as technology and innovation development of the nuclear fuel cycle and disruptive technologies like additive manufacturing and artificial intelligence....

New NEA-UK programme to bring Ukrainian nuclear energy experts to the Agency. 

4-8 March 2024 

Apply now

Programme

The 2024 International Nuclear Law Essentials (INLE) programme will be conducted under the leadership of Paul Bowden, Honorary Professor of Law at the Nottingham L...

Post-test view inside OLHF-4 vessel showing penetrations and resolidified weld material at the vessel bottom.

During a severe accident, the lower head of a reactor pressure vessel (RPV) can be subj...

                                                                                  EPICUR facility, IRSN.

STEM phases

First phase (2011-2015)

The STEM Project was initiated with a first phase in 20...

NEA projections show that in order to successfully achieve net zero by 2050, nuclear energy capacity will need to at least double and potentially triple compared to today. As a result, the topic of n...

Experts from 16 countries met on 13-15 September for the 24^th annual Working Group on Fuel Safety GFS meeting in Paris. 

Photo: RBHT Test Facility. US NRC.

Modelling reactor core behaviour under accident conditions with delayed re-introduction of cooling water (commonly referred to as reflood) is a challenge for safety...

The Senior Expert Group on Safety Research Opportunities Post-Fukushima (SAREF) was established at the June 2013 CSNI meeting to identify research activities to address safety research knowledge gaps...

PKL facility. Photo: FRAMATOME, Germany

The Experimental Thermal Hydraulics for Analysis, Research and Innovations in Nuclear Safety (ETHARINUS) project serves the objectives of investigating phenome...

Studsvik’s pool facility for storage and inspection of SMILE materials, left: 29 tonnes transportation flask, three pools each about 8 meters deep; and right: pool-in-pool for cutting and inspections...

Feeders on the Reactor Face in the Feeder Cabinet Photo: Canadian Nuclear Safety Commission (CNSC)

The Component Operational Experience, Degradation and Ageing Programme (CODAP) combines the follow-u...

Left: Test facility for qualification of melt spreading tests. Photo: Argonne National Laboratory (ANL).
Right: Example of corium melt pouring for a melt spreading preparatory test. Photo: Argonne Nat...

Cabri Reactor (Commissariat à l’énergie atomique et aux énergies alternatives)

The Cabri International Project (CIP) began in March 2000 to study the behaviour of nuclear fuel rods and cladding durin...

The Integration Group for the Safety Case (IGSC) provides advice to the Radioactive Waste Management Committee (RWMC) on major and emerging issues to facilitate the development of waste management st...

Image: QUENCH facility at KIT. Court. KIT. 

The purpose of the QUENCH-ATF project is to investigate the chemical, mechanical and thermal-hydraulics behaviour of ATF claddings in Design Basis Accident...

The Thermochemical Database (TDB) Project develops a reference database of chemical thermodynamic values for elements and compounds relevant to the safety of radioactive waste repositories and vital ...

The NEA announced today that it will co-operate with Net Zero Nuclear, the platform that the global nuclear industry has launched to deliver a Financing Nuclear work stream during COP28 in Dubai.

_{Image adapted from Romolo Tavani, Shutterstock.}

Exploring how innovative nuclear systems require innovative waste management solutions

The new NEA Joint Project on Waste Integration for Small and Adv...

Information System on Occupational Exposure (ISOE) is jointly sponsored by the Nuclear Energy Agency (NEA) and the International Atomic Energy Agency (IAEA). Since 1992, ISOE has provided a forum for...

The Information System on Occupational Exposure (ISOE) is jointly sponsored by the Nuclear Energy Agency (NEA) and the International Atomic Energy Agency (IAEA). Since 1992, ISOE has provided a forum...

The Information System on Occupational Exposure (ISOE) is jointly sponsored by the Nuclear Energy Agency (NEA) and the International Atomic Energy Agency (IAEA). Since 1992, ISOE has provided a forum...

Leaders from regulation, government, industry, academia, international organisations and NGOs on 5-7 September 2023 in Paris.

The NEA is organising the 16^th Information Exchange Meeting on Actinide and Fission Product Partitioning and Transmutation (16IEMPT) on 24-27 October 2023. The meeting will be held at the NEA offices...

The NEA workshop took place in Fukushima on 29-31 July.

Online services for official delegates to NEA meetings.

Photo credit: Joel A. Kulesza, Roger Lee Martz, LANL LA-UR-17-23854

The 12th International Conference on Nuclear Criticality Safety (ICNC) was held in Sendai, Japan, on 1-6 October 2023. Twenty years after the last conference in Japan, which was held in Tokai-mura as...

Uranium is the raw material used to produce fuel for nuclear power plants and refers to the global markets study of its supply and demand.

Information note on nuclear power installations in Ukraine, updated periodically.

Ahmad Sleiman, a PhD student in neurotoxicology at IRSN, talks about his NEST Framework Fellowship.

While there is a growing interest in the deployment of small modular reactors (SMRs) as a promising option to help mitigate climate change, further international efforts are needed to accelerate the ...

The Committee on the Safety of Nuclear Installations (CSNI) is responsible for NEA programmes and activities that support maintaining and advancing the scientific and technical knowledge base of the ...

Optimisation has always been a fundamental concept in decision making for all parts of society, but the way decisions are taken has changed in recent years. Societal considerations towards nuclear-re...

The seventh edition of the annual NEA Thermochemical Database (TDB) Project course on the topic of thermodynamic data collection and assessment took place as a one-day, in-person event on 23 Septembe...

The Nuclear Energy Agency (NEA) Working Group on the Analysis and Management of Accidents (WGAMA) aims to contribute to the assessment of the prevention, mitigation and management of accidents, ultim...

The EGMUP Task Force on artificial intelligence and machine learning will design benchmark specifications to evaluate the performance of AI/ML in multi-physics modeling and simulation of reactor syst...

Electrical cable fire test, IRSN.

The NEA PRISME project addressed in a series of 3 phases from 2006 till 2022 fire risk research. Operating experience shows that fire is one of the highest risks i...

WPLANS members gathered on 27 September 2023.

This document is an extension of the NEA/SEN/SIN/AMA(2006)2 report produced by the Writing Group 3 on the extension of CFD to two-phase flow safety problems, which was formed following the recommen...

Date: 14-17 November 2023

PAKS Nuclear Power Plant, Hungary.

During a fuel crud removal operation on the Paks-2 unit on 10 April 2003, several fuel assemblies were severely damaged. The assemblies were being cleaned in a sp...

Image at melt distribution and its contour at MBC (KAERI).

The Committee on the Safety of Nuclear Installations (CSNI) Working Group on Analysis and Management of Accidents (WGAMA) initiated a co...

Multi-compartment THAI+ test facility, Becker Technologies GmbH.

In the wake of the OECD/NEA THAI project, conducted in three phases from 2007 until 2019, a new project, THAI Experiments on Mitigat...

View looking down onto the LOFT reactor

The Loss-of-fluid Test (LOFT) Research Programme was originally set up by the US Nuclear Regulatory Commission. Part of the programme was later broadened int...

The 2023 edition of the IRPS took place in person in Stockholm, Sweden from 14-18 August 2023, in co-operation with the Swedish Radiation Safety Authority (SSM) and the Centre for Radiation Protectio...

The Global Forum on Nuclear Education, Science, Technology and Policy acts as an inclusive network of experts in the nuclear energy sector, primarily from academia, focused on enabling the generation...

The WPLDF was established to identify and address issues of application of the nuclear liability regimes to deep geological repositories (DGRs) and other radioactive waste disposal facilities. 

NEA and French Ministry for Energy Transition hosted Roadmaps to New Nuclear conference. 

With the growing importance of SMRs, following the proposal of the CSNI Bureau, the CSNI has decided to create an Expert Group on SMRs (EGSMR), at its 69th meeting held on 2-3 June 2021.

The NEA and the Ministry of Energy Transition of France will host the first government-industry conference.

NEA Working Group on Analysis and Management of Accidents (WGAMA) initiated this activity focusing on computational fluid dynamics (CFD) in nuclear reactor safety (NRS).