Nuclear Facilities

Switzerland has five nuclear power plants: Beznau I & II, Mühleberg, Gösgen and Leibstadt. In addition to the nuclear power plants, three research reactors are in operation: at the Paul Scherrer Institute in Würenlingen, the Swiss Federal Institute of Technology (ETH) in Lausanne and the University of Basel. And finally, the national central interim storage facility for radioactive waste (ZWILAG) and the Federal Government interim storage facility at Würenlingen are also monitored by ENSI.

 

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Background Articles

Heat is generated in the reactor as a result of nuclear fission. To guarantee optimum cooling of the fuel rods, their cladding tubes must always be covered with a film of water. If they are not completely covered with water in specific areas, this is referred to as “dryout”.

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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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In 2008, general licence applications were submitted for three new nuclear power plants in Switzerland: the Mühleberg replacement nuclear power plant, the Beznau 1 & 2 replacement nuclear power plants, and a new construction project at Niederamt in the canton of Solothurn. For the purposes of the general licences, ENSI began by examining whether the […]

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Documents

This Research and Experience Report describes and rates the findings of the regulatory research into safety, specific instructive events from nuclear facilities abroad, news regarding the international cooperation as well as current changes and developments in underlying surveillance principles in 2015.

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This Research and Experience Report describes and rates the findings of the regulatory research into safety, specific instructive events from nuclear facilities abroad, news regarding the international cooperation as well as current changes and developments in underlying surveillance principles in 2014.

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This Guideline stipulates the requirements for the organisation of nuclear installations in the operational and post-operational phase. It includes references to other ENSI Guidelines as follows: The requirements for the training and qualification of personnel at nuclear installations are stipulated in Guidelines ENSI-B10 and ENSI-B13. The requirements for the emergency response organisation at nuclear installations […]

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