Abstract

This paper describes present status of nuclear power and current technical issues based on the activities of the Japan Nuclear Energy Safety Organization (JNES) which was established on October 1 of 2003. Currently one of the major issues in Japanese nuclear power plants is seismic issue covering Niigata-Chuetsu-oki earthquake two years' ago and re-evaluation of the operating plants in compliance with the new guideline established by Nuclear Safety Commission in 2006. New inspection system has been introduced from this year. Many issues regarding safety regulation have been addressed or under investigation such as ageing, risk application, safety culture, plant uprating, sump clogging, severe accident. Present status of nuclear fuel cycle facilities such as MONJU and the reprocessing plant at Rokkasho is also explained. International activities have been promoted by the globalization and the Multinational Design Evaluation Program (MDEP) is one of them. Role of the technical support organizations (TSO) for regulatory body is attracting more importance.

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