popular articles

France: Uncertainties over the dimensions of the Cigéo project

IRSN highlights the uncertainties surrounding the Cigéo project's capacity to receive waste from future nuclear reactors, necessitating further studies.
Incertitudes sur projet Cigéo

Please share:

The Institut de Radioprotection et de Sûreté Nucléaire (IRSN) recently published a report highlighting several “uncertainties” concerning the dimensioning of the Cigéo project, designed to bury radioactive waste. These uncertainties are mainly related to waste conditioning and storage methods.
The Cigéo project, located at Bure in the Meuse region, aims to bury France’s most radioactive nuclear waste 500 meters underground. The authorization application, submitted in early 2023, is currently being examined by the French Nuclear Safety Authority (ASN), which will soon be merged with IRSN. This process could take several more years before authorization is granted.

Impact of the Nuclear Recovery Program

TheIRSN report also looks at the impact of the nuclear revival program announced by Emmanuel Macron for 2022. This program calls for the construction of six new-generation reactors, with an option for a further eight. IRSN states that there are no objections to extending the operating life of current reactors to 60 years and commissioning the six EPR2s.
However, IRSN notes that the storage area could extend beyond the current limits of the zone d’implantation des ouvrages souterrains (ZIOS) by a few hundred meters to a few kilometers, while remaining within the transposition zone where the feasibility of storage was demonstrated in 2005.

New Studies Needed for Future Reactors

Questions remain about Cigéo’s capacity to manage the additional waste arising from the construction of the eight additional EPR2s or small reactors (SMRs) envisaged by the French government. In this case, IRSN stresses the need for further studies to assess the site’s suitability for this future waste.
At the same time, IRSN is making two technical recommendations: geological reconnaissance in a specific area of the project, and more precise well-digging methods.

Perspectives and Technical Recommendations

These recommendations underline the importance of a thorough geological understanding to guarantee the safety and viability of the Cigéo project. IRSN also proposes clarification of excavation techniques to avoid any potential risks during the development and operation phases.
The safety experts still have two more reports to submit to complete the appraisal of the Cigéo authorization application. Although controversial, this project is crucial to the management of radioactive waste in France, especially in view of the planned expansion of the nuclear fleet.
For industry professionals, these uncertainties and technical recommendations represent major challenges, but also opportunities for improving the safety and efficiency of nuclear waste disposal.
The IRSN report highlights crucial uncertainties about the Cigéo project, underlining the need for further studies to ensure its ability to manage future nuclear waste. This technical analysis and the associated recommendations will provide a sound basis for future decisions concerning France’s nuclear power plants.

Register free of charge for uninterrupted access.

Publicite

Recently published in

Fermi Energia has signed a strategic agreement with Samsung C&T to develop two small modular reactors in Estonia, targeting commercial operation by 2035.
China National Nuclear Corporation mobilizes international investors and financial partners for a unique nuclear project combining two distinct technologies to simultaneously supply industrial heat and electricity, marking a new strategic step for China's energy industry.
China National Nuclear Corporation mobilizes international investors and financial partners for a unique nuclear project combining two distinct technologies to simultaneously supply industrial heat and electricity, marking a new strategic step for China's energy industry.
Framatome and TechnicAtome have acquired Segault, a strategic nuclear valve manufacturer, thereby blocking a takeover by the American firm Flowserve following opposition from the French government.
Framatome and TechnicAtome have acquired Segault, a strategic nuclear valve manufacturer, thereby blocking a takeover by the American firm Flowserve following opposition from the French government.
The United States Nuclear Regulatory Commission has approved a 20-year extension for the operating licences of Oconee Nuclear Station, reinforcing energy supply in the Carolinas amid growing regional demand.
The United States Nuclear Regulatory Commission has approved a 20-year extension for the operating licences of Oconee Nuclear Station, reinforcing energy supply in the Carolinas amid growing regional demand.
A radioactive steam leak detected in the reactor building of Flamanville unit 1 forces EDF to postpone its restart by one month, according to the Nuclear Safety and Radiation Protection Authority.
French firm Framatome has been selected to modernise control systems at Switzerland’s Leibstadt nuclear plant, as part of a strategic investment aiming to extend its operation through 2045.
French firm Framatome has been selected to modernise control systems at Switzerland’s Leibstadt nuclear plant, as part of a strategic investment aiming to extend its operation through 2045.
The U.S. Department of Energy reopens a $900M envelope to finance the construction of third-generation small modular reactors, aiming to rapidly expand national power capacity.
The U.S. Department of Energy reopens a $900M envelope to finance the construction of third-generation small modular reactors, aiming to rapidly expand national power capacity.
HYLENR Technologies has signed a memorandum of understanding with TakeMe2Space to test a low-energy nuclear reaction power solution aboard satellites designed for orbital computing.
HYLENR Technologies has signed a memorandum of understanding with TakeMe2Space to test a low-energy nuclear reaction power solution aboard satellites designed for orbital computing.
Japanese researchers have assembled a rechargeable battery harnessing the chemical properties of uranium, aiming to convert stored depleted uranium into a strategic energy storage resource.
The French government is pressing EDF and industrial players to reach a pricing agreement by summer, amid ongoing tensions over nuclear supply contracts.
The French government is pressing EDF and industrial players to reach a pricing agreement by summer, amid ongoing tensions over nuclear supply contracts.
Two small modular reactor developers begin preliminary engagement with the US nuclear authority, ahead of filing applications for distinct projects targeting industrial use cases.
Two small modular reactor developers begin preliminary engagement with the US nuclear authority, ahead of filing applications for distinct projects targeting industrial use cases.
Fortum continues preparations for new nuclear capacity in Finland and Sweden, selecting three suppliers after a two-year feasibility study.
Fortum continues preparations for new nuclear capacity in Finland and Sweden, selecting three suppliers after a two-year feasibility study.
NRG-Pallas will conduct irradiation tests necessary for qualifying materials and fuel of Kairos Power's modular reactor, a critical prerequisite for regulatory approval in the United States.
Tokyo Electric Power Company will begin next week the removal of thousands of contaminated sandbags, stored since 2011 in the Fukushima Daiichi basements, using robots designed for high-radiation environments.
Tokyo Electric Power Company will begin next week the removal of thousands of contaminated sandbags, stored since 2011 in the Fukushima Daiichi basements, using robots designed for high-radiation environments.
Welding of the main reactor for Egypt’s El Dabaa nuclear power plant has been completed in Russia, marking a major milestone in the development of the country's first civilian nuclear programme.
Welding of the main reactor for Egypt’s El Dabaa nuclear power plant has been completed in Russia, marking a major milestone in the development of the country's first civilian nuclear programme.
Kazakh President Kassym-Jomart Tokayev has established a new agency to oversee nuclear energy, appointing Almassadam Satkaliyev as its head. This structure aims to enhance the country’s energy security and support its long-term nuclear ambitions.
Kazakh President Kassym-Jomart Tokayev has established a new agency to oversee nuclear energy, appointing Almassadam Satkaliyev as its head. This structure aims to enhance the country’s energy security and support its long-term nuclear ambitions.
The US Department of Energy allocated a $57 million loan to Holtec International to support the relaunch of the Palisades nuclear plant, which has been closed since 2022, to ensure compliance with NRC safety standards.
Orano and Navoiyuran have signed a strategic agreement for the industrial development of the South Djengeldi uranium deposit in Uzbekistan, with the entry of Japanese company ITOCHU Corporation as a minority partner.
Orano and Navoiyuran have signed a strategic agreement for the industrial development of the South Djengeldi uranium deposit in Uzbekistan, with the entry of Japanese company ITOCHU Corporation as a minority partner.
Chubu Electric starts dismantling reactors at Hamaoka plant, marking a turning point in the management of its nuclear sector as Japan plans to gradually reintroduce nuclear energy into its energy mix.
Chubu Electric starts dismantling reactors at Hamaoka plant, marking a turning point in the management of its nuclear sector as Japan plans to gradually reintroduce nuclear energy into its energy mix.
President Emmanuel Macron has announced an additional delay for the commissioning of the first EPR2 reactors, now set for 2038 instead of 2035. This decision was made during a meeting dedicated to the nuclear program.
President Emmanuel Macron has announced an additional delay for the commissioning of the first EPR2 reactors, now set for 2038 instead of 2035. This decision was made during a meeting dedicated to the nuclear program.
Tests on the concrete of the EPR2 Penly seawall have raised doubts about its compliance with safety standards, according to Mediapart and Reporterre. EDF and Eiffage contest these claims, asserting that the material meets technical requirements.
On Monday, President Emmanuel Macron will chair a Nuclear Policy Council focused on small modular reactors (SMRs) and uranium supply, within a global context of renewed interest in nuclear energy.
On Monday, President Emmanuel Macron will chair a Nuclear Policy Council focused on small modular reactors (SMRs) and uranium supply, within a global context of renewed interest in nuclear energy.
A group of technology and energy companies, along with 31 countries, has signed a pledge to triple global nuclear capacity by 2050, supporting a strategic expansion of this energy source.
A group of technology and energy companies, along with 31 countries, has signed a pledge to triple global nuclear capacity by 2050, supporting a strategic expansion of this energy source.
Rafael Mariano Grossi, IAEA Director-General, is visiting Niger to discuss nuclear cooperation. This visit comes at a time when the country, a major uranium producer, is experiencing internal political tensions.
Rafael Mariano Grossi, IAEA Director-General, is visiting Niger to discuss nuclear cooperation. This visit comes at a time when the country, a major uranium producer, is experiencing internal political tensions.

Advertising