The EU Stress Test provides renewed confirmation that Swiss nuclear power plants maintain a high standard of safety, and that the measures implemented to date on the basis of knowledge gained from Fukushima are correct. Taking account of the submissions from operators, the Swiss Federal Nuclear Safety Inspectorate (ENSI) has, however, identified a further eight “open points” which supplement the 37 checkpoints derived from the Fukushima analysis.
The Swiss Federal Nuclear Safety Inspectorate ENSI is the supervisory authority for nuclear safety and security. The scope of the IRRS mission to Switzerland covers all facilities and activities that are supervised by ENSI.
All of Switzerland’s nuclear power plants will cope with an extreme flood of the sort that may occur on average once every 10,000 years, in addition to their ability to cope with other hazards. Even if the external power supply fails at the same time as the flood occurs, the plants can be brought into a safe condition. All the plants are clearly in compliance with the applicable limits.
The annual reports of ENSI concerning the year 2010 are available on ENSI’s website.
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 standards. Compliance with such standards should be monitored by independent inspectors from other countries and in the interests of transparency the IAEA, the International Atomic Energy Agency should facilitate easy access to the results.
On Wednesday evening, the Swiss Federal Nuclear Safety Inspectorate, ENSI issued directives on the EU Stress Test to operators of nuclear power plants in Switzerland. This is the 4th directive to be issued by ENSI since the accident in Fukushima.
Operators of nuclear power plants in Switzerland have met the ENSI deadline of 1 June 2011 for the creation of an external store for emergency equipment. ENSI inspectors consider that the store meets its requirements.