The fuel assemblies stored in the fuel rack inside the Unit 4 spent fuel pool are to be taken out and transferred to the common pool located within the station site for centralized storage. This fuel removal operation starts on November 18, 2013. Its completion is scheduled for the end of 2014.





Completion status of transfer from Unit 4 to Common Pool ◯Breakdown of transferred assemblies by kind

Spent fuel 286 assemblies/1,331 assemblies

Unirradiated (New) fuel 22 assemblies/ 202 assemblies

◯Number of times of cask transportation:

14 times as of Feb.10,2014 Completion status of transfer will be updated every Monday.

(If the holiday falls on a Monday, it will be updated on the next working day)

Outline of the fuel removal from the spent fuel pool The fuel assemblies stored in the fuel rack inside the Unit 4 spent fuel pool are to be taken out and transferred to the common pool located within the station site for centralized storage. This fuel removal operation starts on November 18, 2013 and will be conducted with the following steps. Its completion is scheduled for the end of 2014. (1) Relocate the fuel assemblies stored in the fuel rack inside the spent fuel pool, one by one, into a transportation container (cask) underwater using a fuel handling machine.

Relocate the fuel assemblies stored in the fuel rack inside the spent fuel pool, one by one, into a transportation container (cask) underwater using a fuel handling machine. (2) Lift up the cask from the spent fuel pool using a crane.

Lift up the cask from the spent fuel pool using a crane. (3) Conduct, on the floor as high as the operating floor, such works as closing the lid of the cask and decontaminating the cask.

Conduct, on the floor as high as the operating floor, such works as closing the lid of the cask and decontaminating the cask. (4) Lift down the cask toward the ground using the crane to lay it on a trailer.

Lift down the cask toward the ground using the crane to lay it on a trailer. (5) Transport the cask to the common pool using the trailer.

Explanatory videos Summarized explanation (3:42) Actual work (3:42)

Photos and videos 2013.11.18

On-premise transportation container landing on the water and fuel removal 2013.11.20

Video taken underwater 2013.11.21

Cask transfer 2013.11.22

Work at the common pool 2013.11.26

Extraction of spent fuel 2013.11.27

Video taken underwater: extraction of spent fuel 2013.11.29

Cask transfer at common pool