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Safety assessments of disposal sites for radioactive waste involve analyses of potential releases of radionuclides from the disposed waste and subsequent transport to the human environment. An important stage of assessment is the identification and documentation of all the features, events and processes (FEPs) that may be relevant to long-term safety. This report provides an international compilation of FEPs as well as a basis for selecting the FEPs that should be included in safety analyses.

  • 19 Sept 2016
  • Nuclear Energy Agency, OECD
  • Pages: 23

Decommissioning of both commercial and R&D nuclear facilities is expected to increase significantly in the coming years, and the largest of such industrial decommissioning projects could command considerable budgets. It is important to understand the costs of decommissioning projects in order to develop realistic cost estimates as early as possible based on preliminary decommissioning plans, but also to develop funding mechanisms to ensure that future decommissioning expenses can be adequately covered. Sound financial provisions need to be accumulated early on to reduce the potential risk for residual, unfunded liabilities and the burden on future generations, while ensuring environmental protection.

Decommissioning planning can be subject to considerable uncertainties, particularly in relation to potential changes in financial markets, in energy policies or in the conditions and requirements for decommissioning individual nuclear installations, and such uncertainties need to be reflected in regularly updated cost estimates.

This booklet offers a useful overview of the relevant aspects of financing the decommissioning of nuclear facilities. It provides information on cost estimation for decommissioning, as well as details about funding mechanisms and the management of funds based on current practice in NEA member countries.

During irradiation, nuclear fuel changes volume, primarily through swelling. This swelling is caused by the fission products and in particular by the volatile ones such as krypton and xenon, called fission gas. Fission gas behaviour needs to be reliably predicted in order to make better use of nuclear fuel, a factor which can help to achieve the economic competitiveness required by today's markets. These proceedings communicate the results of an international seminar which reviewed recent progress in the field of fission gas behaviour in light water reactor fuel and sought to improve the models used in computer codes predicting fission gas release. State-of-the-art knowledge is presented for both uranium-oxide and mixed-oxide fuels loaded in water reactors.

Countries around the world continue to implement safety improvements and corrective actions based on lessons learnt from the 11 March 2011 accident at the Fukushima Daiichi nuclear power plant. This report provides a high-level summary and update on these activities, and outlines further lessons learnt and challenges identified for future consideration. It focuses on actions taken by NEA committees and NEA member countries, and as such is complementary to reports produced by other international organisations.

The biannual Uranium Resources, Production and Demand, also known as the "Red Book," was first published in 1965 and has since grown to be a recognised world reference on uranium. Over the 40 years of its existence, the Red Book has collected an impressive quantity of official data supplied by governments. This Red Book retrospective was undertaken to collect, collate, analyse and publish all of the key information collected in the 20 editions of the Red Book published between 1965 and 2004. Additionally, every effort has been made to fill in gaps in the record to provide the most complete and exhaustive information possible. As a result, the Red Book retrospective gives a full historical profile of the world uranium industry in the areas of exploration, resources, production, reactor-related requirements, inventories and price. It provides in-depth information relating to the histories of the major uranium-producing countries including Australia, Canada, France, Germany (including the former German Democratic Republic), the Russian Federation (including the former Union of Soviet Socialist Republics) and the United States. For the first time, for example, a comprehensive look at annual and cumulative production and demand of uranium since the inception of the atomic age is possible. Besides reporting and documenting the historical data, expert analyses provide fresh insights into important aspects of the industry including: the cost of discovery, resources to production ratios and the time to reach production after discovery, among others. Taken together, this Red Book retrospective provides the most complete record of the uranium industry publicly available, dating from the birth of civilian nuclear energy through to the dawn of the 21st century.
French

In the field of long-term radioactive waste management, projects to construct repositories normally last from decades to centuries. Such projects will inevitably have an effect on the host community from the planning stage to the end of construction and beyond. The key to a long-lasting and positive relationship between a site and its host community is ensuring that solutions are reached together throughout the entire process. The sustainability of radioactive waste management solutions can potentially be achieved through design and implementation of a facility that provides added cultural and amenity value, as well as economic opportunities, to the local community.

This second edition of Fostering a Durable Relationship Between a Waste Management Facility and its Host Community: Adding Value Through Design and Process highlights new innovations in siting processes and in facility design – functional, cultural and physical – from different countries, which could be of added value to host communities and their sites in the short to long term. These new features are examined from the perspective of sustainability, with a focus on increasing the likelihood that people will both understand the facility and its functions, and remember what is located at the site.

This 2015 update by the NEA Forum on Stakeholder Confidence will be beneficial in designing paths forward for local or regional communities, as well as for national radioactive waste management programmes.

  • 11 Mar 2021
  • OECD, Nuclear Energy Agency
  • Pages: 80

Much has been learnt in the ten years since the Great Eastern Japan Earthquake and the subsequent accident at the Fukushima Daiichi Nuclear Power Plant, but significant challenges still remain.

This report presents the current situation at the Fukushima Daiichi Nuclear Power Plant and the responses by Japanese authorities and the international community since the accident. It will assist both policymakers and the general public to understand the multi-dimensional issues stemming from the accident. These include disaster recovery, compensation for damages, nuclear safety, nuclear regulation, radiation protection, plant decommissioning, radioactive waste management, psycho-social issues in the community and societal resilience.

Building on two previous reports released by the OECD Nuclear Energy Agency (NEA) in 2013 and 2016, the report examines the plant’s future, that of the affected region and population, as well as outlining areas for further improvement and how the international community can help.

Japanese

Major nuclear regulatory challenges will arise from government policies to liberalise energy sectors. In a context of growing competition and market deregulation, it is becoming increasingly important to reconcile commercial interests with safety requirements. For nuclear regulatory bodies, the first challenge will be to ensure that economic pressures do not erode nuclear safety. In their strive to maintain nuclear safety culture, regulatory bodies will also need to adapt to an increasingly market-oriented environment and new working relationships with operators. This report identifies the challenges that regulators are likely to be confronted with over the next ten years.

French
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