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  • News, Posts

    IAEA Fukushima Conference Identifies New International Recommendations for Action

    The international conference “A Decade of Progress after Fukushima Daiichi” was held in Vienna from 8 to 12 November 2021. Organised by the International Atomic Energy Agency (IAEA), the event dealt with the lessons learned from the nuclear accident in an effort to further strengthen nuclear safety. Primarily, the discussions at the conference resulted in…

  • News, Posts

    25th Anniversary of the Mont Terri Rock Laboratory: Independent research improves safety

    The Mont Terri Rock Laboratory has been carrying out geological experiments in the Opalinus Clay since 1996 to assess it as a host rock for the deep geological disposal of Swiss radioactive waste and as a storage rock for CO2. On the occasion of the 25th Anniversary in the town of St Ursanne in the…

  • News, Posts

    IRRS Mission 2021: IAEA approves ENSI as an independent and progressive regulatory authority

    Swiss nuclear safety oversight complies with the internationally applicable standards of the IAEA regulatory framework. This is the outcome of the IRRS mission of the International Atomic Energy Agency that concluded on Friday. ENSI will be implementing the improvement suggestions of the team of experts with an own package of measures.

  • News, Posts

    IRRS Mission to Switzerland: Swiss nuclear oversight under international review

    The IRRS mission will be taking place in Switzerland from 18 to 29 October 2021. As part of this mission, experts from the International Atomic Energy Agency (IAEA) will be reviewing the Swiss regulatory system and ENSI’s work.

  • News, Posts

    Lessons Learned from the Fukushima Analysis for Oversight in the Field of Human and Organisational Factors

    Since 11 March 2011, ENSI has been addressing the lessons learned from the Fukushima Daiichi reactor accident. To mark the tenth anniversary, ENSI is publishing a further report, and considering its regulatory approaches and methods in respect of human and organisational factors.

  • News, Posts

    Global nuclear safety is the focus of the 65th IAEA General Conference

    The 65th General Conference of the International Atomic Energy Agency (IAEA) is taking place from 20 to 24 September. The focus is on nuclear safety, security and verification as well as the challenges arising from the COVID-19 pandemic.

  • News, Posts

    New international research projects

    ENSI is participating in two large-scale international research projects providing data on the ageing phenomena of reactors and on the operating and accident behaviour of fuel rods. The findings are being incorporated into ENSI’s safety assessments.

  • Background articles, News, Posts

    Ten Years on from Fukushima (4/6): The Consequences for Swiss Nuclear Power Plants and the Oversight Activities

    After the events in Fukushima Daiichi, ENSI ordered immediate actions and additional safety tests for the Swiss nuclear power plants. Moreover, from the accident analysis and the EU stress test, ENSI derived a need for action to improve nuclear safety in Switzerland: the “Fukushima Action Plan”.

  • Background articles, News, Posts

    New study on extreme flooding of the River Aare is also relevant for nuclear power plant sites

    Today, the Federal Office of the Environment, FOEN, published its study “Extreme Flooding of the River Aare”. Their findings also include a re-evaluation of the flood risk to nuclear installations located on the Aare. ENSI will now require those nuclear installations concerned to update their safety cases.