[Machine Translation] Defects on the tank of the EPR of Flamanville: the Nuclear Safety Authority had alerted EDF from 2005 of malfunctions to the manufacturer. Documents revealed by franceinfo show that, as of 2005, the Nuclear Safety Authority had alerted EDF and Areva on quality problems at the Creusot Forge plant. It was there that the tank of the EPR of Flamanville (Manche) was manufactured. The lid and bottom of the reactor vessel of the Flamanville EPR were manufactured by Creusot Forge, in Burgundy, between September 2006 and December 2007. As of August 2006, the ASN is concerned and asks by Mail to Areva to demonstrate that the steel of these two parts is homogeneous. For seven years, mail exchanges succeed each other, the manufacturer and the ASN are opposed to technical considerations, but no analysis is carried out. On January 24, 2014, the tank, which arrived at the site of Flamanville, is placed in the reactor building. Nine months later, the verdict fell. Areva has finally done tests. They are negative: the bottom and the lid have abnormalities. In the jargon of steelmakers, they are called “carbon segregations”. “The steel in the tank should normally contain 0.2% of carbon,” explains Yves Marignac, expert in the nuclear sector, “it is a concentration of rather 0.3%, enough to modify the mechanical properties of the” Steel and, in particular, to influence the temperature at which it becomes less supple and more brittle, “he adds. It is annoying, when one knows that the scenario of rupture of the tank does not exist in the nuclear. There is no plan B in the event of an accident of this type.
France Info 31st March 2017 read more »
Liberation 31st March 2017 read more »
As part of its contribution to the work of the Monitoring Group set up by the High Committee for Transparency and Information on Nuclear Safety at the request of the Minister for Nuclear Safety and Energy ( HCTISN), in order to ensure the transparency of the investigation of the anomaly that affects the tank of the Flamanville EPR and to ensure the proper transmission of information to civil society, History of its exchanges with EDF and Areva NP since 2005 on the quality of manufacture of Creusot Forge. Following several requests from the public, ASN publishes the history of these exchanges with EDF and Areva NP since 2005 and makes available to the public the letters it sent to them on this subject. A report on the anomaly of the PRT tank will also be prepared by the HCTISN monitoring group and will be made public.
ASN 31st March 2017 read more »
The new revelations on the EPR reactor tank confirm the serious faults of the Nuclear Safety Authority. The Nuclear Observatory first recalls that when it lodged a complaint in May 2016 about the workmanship and falsification of the Le Creusot factory. Has designated the Nuclear Safety Authority (ASN) as one of the alleged perpetrators. It was only six months later that the prosecutor seized the prosecutor, because she was forced to do so by the law but also to try to get on the right side of the bar during the trial. come. But it is already proven that the ASN is seriously faulty since it has seen nothing, or worse said nothing, for many years: on the one hand, criminal practices in Le Creusot concerning nuclear parts have since 1965, on the other hand the tank of the EPR of Flamanville was (badly) manufactured in 2006 and 2007.
Nuclear Observer 31st March 2017 read more »
Leaving nuclear power or staying there: an astronomical cost. The shutdown of the French nuclear power plant or its revival would amount to hundreds of billions of euros. Should France reduce its addiction to the atom, as prescribed by the energy transition law that engraved in the marble the promise of François Hollande to reduce the share of nuclear electricity from 76% to 50% “By 2025”? Does it even have to renounce the energy of fission completely, as proposed by Benoît Hamon (Socialist Party) and Jean-Luc Mélenchon (La France insoumise)? Should it, on the contrary, persevere in an industrial sector which will engage it again for several generations? In the run-up to the presidential election, and as EDF is due to vote on Thursday at the Fessenheim power station stop, the debate, which remains a marker of a fracture between the right and left , Heats up minds and calculators.
Le Monde 3rd April 2017 read more »
217 billion euros to get out of nuclear power in 2035? The always (very) incorrect calculation of the Institut Montaigne After publishing an initial analysis of the cost of a “nuclear exit” by 2035, the Institut Montaigne reviewed its copy a few days later (in response to criticism from various observers). The calculation hypotheses have been resumed in depth, but by a strange and troubling coincidence the final result remains identical: the output of nuclear power would still cost 217 billion euros. This article aims to decipher the hypotheses retained in this new analysis of the Institut Montaigne.
Decrypter Energyie 3rd April 2017 read more »