Last saturday, the 5000th visitor of 2014 has been welcomed at the Visitor Center of the Mont Terri Rock Laboratory. ENSI participates in the Rock Laboratory with its own research projects. As a project partner, ENSI offers guided tours of the Mont Terri Rock Laboratory to interested groups.

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The Federal Council’s energy strategy for 2050 is based on a gradual withdrawal from the nuclear energy programme. Under the new conditions, ENSI, as a specialised body of the Confederation that is politically and economically independent, also ensures the safety of nuclear installations.

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ENSI does not only grant approvals in the case of upgrading. Modifications to constructions, parts of installations, systems, equipment and documents that are classified as relevant for safety or technical security have to be approved by law – even in the case of decommissioning.

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The guideline ENSI-A05 defines the quality and scope requirements regarding the plantspecific level 1 and level 2 Probabilistic Safety Analysis (PSA) for both internal and external events and covering all operating modes of the nuclear power plants. In  addition, this guideline establishes the PSA requirements for other nuclear installations. The quality and scope requirements in […]

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This guideline formalizes the requirements for the application of Probabilistic Safety Analysis (PSA) for nuclear power plants. It presents the general principles, the requirements for maintenance and upgrade of the PSA, as well as the minimum required scope of PSA applications. The risk measure and evaluation criteria to be applied are defined for these PSA […]

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The Fukushima action plans serve the purpose of ensuring transparency as regards processing of the identified points until they are implemented. They also provide an instrument for the planning of supervisory work and the assessment of new knowledge gained from the Fukushima accident.

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