The European Nuclear Power Risk Study: Beznau, Bugey, Goesgen, Leibstadt, Muehleberg (EUNUPRI-2019)

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NPP Goesgen (1979), Switzerland

English: Risk assessment of five nuclear power plants

The Institut Biosphère and his partners had assessed the risk of nuclear power plants. The European Nuclear Power Risk study 2019 (EUNUPRI_2019) is a scientific analysis of the risk of a major nuclear accident from the perspective of prescriptive laws. It analyses 5 NPPs in Switzerland and France. This is the second study of Institut Biosphère in the field (see also the 2015 study).
Pressbook of the 2019 study on NPP Bugey and four Swiss NPPs

Français: Analyse du risque d'accident nucléaire

L’Institut Biosphère et ses partenaires ont évalué les risques des réacteurs nucléaires dédiés à la production d’énergie. EUNUPRI_2019 est une analyse scientifique du risque d’un accident nucléaire majeur dans la perspective du corpus légal. Cette synthèse porte sur 5 centrales en Suisse et en France (voir résumé français de EUNUPRI_2019). C’est la seconde étude sur ce sujet après l'étude 2015.
Texte complet en anglais:
Résumé en français:
Pressbook de l'étude 2019 sur le Bugey et quatre centrales suisses

The European Nuclear Power Risk Study (EUNUPRI–2019)

EUNUPRI_2019 discusses the probability of a major accident in a nuclear power plant and, by simulation of such an accident, it evaluates the harm to people and the damage to soils. The Western European nuclear power plants (NPPs) under scrutiny are Beznau, Gösgen, Leibstadt and Mühleberg in Switzerland and Bugey in France.


We found between 20,000 and nearly 50,000 radio-induced cancer cases on average, depending on the specific NPP, and between 7,500 and 18,500 radio-induced cardiovascular cases (myocardial infarction, cerebrovascular disease) are estimated as late effects of ionizing radiation. Furthermore, the number of people who should be evacuated and resettled could, on average, reach 250,000 for the smaller NPP (Beznau) and up to 500,000 for Leibstadt.


– Frédéric-Paul Piguet, Institut Biosphère, Geneva
– Pierre Eckert, Geneva
– Claudio Knüsli, IPPNW (Suisse), Luzern
– Bastien Deriaz, Institute for environmental sciences, University of Geneva
– Walter Wildi, Department F.A.-Forel, University of Geneva
– Gregory Giuliani, Institute for environmental sciences, University of Geneva

VIDEOS Simulation of a major nuclear accident in one reactor of the below NPPs:

– Bugey, 2785 MWth, France:  Video  (25'')
– Beznau, 1130 MWth, Switzerl.:  Video  (25'')
– Goesgen, 3002 MWth, Switzerl.:  Video  (50'')
– Leibstadt, 3600 MWth, Switzerl.:  Video  (25'')

Technical report on the geomatics work carried out for the EUNUPRI study at the University of Geneva (in French):

PDF To be quoted as: Deriaz, Bastien. 2019. Cartographie des impacts d’un accident nucléaire majeur en Suisse. Rapport de stage, certificat complémentaire en Géomatique sous la supervision de Gregory Giuliani. University of Geneva, Institute Biosphère, Sortir du Nucléaires. January 2019. 39 p.  Lien

The European Nuclear Power Risk study 2019 (EUNUPRI_2019) A peer-reviewed report to be quoted as:

Piguet, Frédéric-Paul. Eckert, Pierre. Knüsli, Claudio. Deriaz, Bastien. Wildi, Walter. Giuliani, Gregory. 2019. "Modeling of a Major Accident in Five Nuclear Power Plants From 365 Meteorological Situations in Western Europe and Analysis of the Potential Impacts on Populations, Soils and Affected Countries". Institut Biosphère. Strategic Study n°2. Final version B, 27 August 2019. 42 p. (EUNUPRI_2019)