2009–2012

• Construction of Vaults Modules 17 to 20
• Technical assessments for the design of the interim storage of failed fuel assemblies
• Preparation of the conception design for the interim storage of damaged fuel assemblies and the substantiation of loading capsules containing damaged fuel assemblies into the ISFS facility.

2013–2017

• Construction of Vaults Modules 21 to 25

2047–2069

• Recovery of fuel assemblies from the loaded vault modules and the transfer of spent fuel assemblies to the high-level waste repository

2009–2069

• Continued operation

2070–2088

• Safe custody together with the power plant

2089–2104

• Decommissioning together with the power plant

30 irradiated fuel assemblies became damaged during the incident at Paks NPP, therefore preparations shall be made for the final disposition of the damaged fuel assemblies in Hungary. To this end, a conception design was developed in 2005 to assess the feasibility of the interim storage and final disposal of these damaged fuel assemblies in domestic facilities. The conception design is based on the assumption that, after 5-year decay in the decay pool (in 2010), the damaged fuels will be loaded into weld sealed dry capsules. The damaged fuels shall be stored in such conditions, together with the spent fuel assemblies, until their final disposal. A decision is to be made on the basis of the conception design on the interim storage method to be applied for the damaged fuel assemblies.