Swiss federal authorities

Events abroad

The Swiss Nuclear Safety Inspectorate (ENSI) is interested in the events abroad. They learn how to act with the national Power Plants in case of a nuclear incident.

Directly after the accident in Japan’s Fukushima Dai-ichi nuclear power plant on 11 March 2011, ENSI ordered immediate measures for a review of the safety of the Swiss nuclear power plants. In parallel, an interdisciplinary team of experts from ENSI (the “Japan Analysis Team”) reconstructed the events of the accident and subjected them to in-depth analysis.

News

  • News

    More investigations are needed on the reactor pressure vessel of Beznau 1

    While carrying out ultrasonic measurements of the reactor pressure vessel of the Beznau 1 nuclear power plant the operator detected flaw indications that require evaluation. It submitted a corresponding report to the Swiss Federal Nuclear Safety Inspectorate ENSI yesterday. Beznau 1 is presently inactive because of the main annual overhaul. ENSI is now awaiting an…

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    Switzerland is consistently implementing recommendations of EU Stress Test

    Switzerland is on course with its implementation of recommendations resulting from the EU Stress Test. This emerges from the status report submitted to the European Union (EU) by the Swiss Federal Nuclear Safety Inspectorate (ENSI).

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    ENSI follows WENRA recommendation on review of reactor pressure vessels

    The Swiss nuclear power plants (NPP) Beznau and Gösgen are required to perform standardized safety reviews of the base materials in their reactor pressure vessels to check for possible manufacturing flaws. Through this requirement, the Swiss Federal Nuclear Safety Inspectorate ENSI is implementing a recommendation issued by the Western European Nuclear Regulators Association (WENRA).

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    ENSI presents its first Action Plan based on the Lessons Learned from Fukushima

    The Swiss Federal Nuclear Safety Inspectorate (ENSI) intends to continue improving the safety of Switzerland’s nuclear power plants. After its analysis of the events at Fukushima, ENSI therefore defined follow-up measures for the current year relating to eleven key topics.

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    Switzerland demands a strengthening of international safety monitoring

    At the OECD Forum in Paris, ENSI Director Hans Wanner argued for a strengthening of the international monitoring of nuclear power. This followed comments by the Swiss Federal Councillor Doris Leuthard at yesterday’s meeting of minsters from the G8 and G20 countries on nuclear safety in Paris during which she called for internationally binding safety…