Tepco to transfer a part of fuel from Reactor4 pool to another spent fuel pool due to the lack of space

Tepco ends up transferring fuel from a spent fuel pool to another spent fuel pool.


On 6/18/2014, Tepco announced that they are running out of the space for Reactor4 pool fuel removal. Originally they planed to transfer all of 1,535 fuel assemblies to the common pool, which is more secure.

When 311 took place, the common pool already stocked 6,377 fuel assemblies where the capacity is 6,750. In order to accept additional fuel from SFP4 (Reactor4 Spent Fuel Pool), they were transferring the fuel by using casks.

However it turned out that they cannot make space for 157 fuel assemblies from SFP4. As a result, Tepco has decided to transfer 180 new fuel assemblies from SFP4 to Reactor6 pool.


As the reason why they cannot make space in the common pool, Tepco is stating they are taking long to get the approval of using casks. On the other hand, Tepco also announced that they are going to try to increase the production capacity of the casks. It therefore is likely to be simply because Tepco is not capable of producing casks fast enough.


At the moment of 6/16/2014, Tepco has transferred 22 of 204 new fuel assemblies and 1,056 of 1,331 spent fuel assemblies to the common pool. They still state they can complete all the transfer by the end of 2014.





You read this now because we’ve been surviving until today.


Français :

Tepco va transférer une partie des combustibles de la SFP4 dans une autre SFP par manque de place


Tepco en finit par transférer les combustibles d’une piscine à combustibles usagés (SFP) dans une autre piscine à combustibles usagés.

Le 18 juin 2014, Tepco déclare qu’ils manquent de place pour le retrait des combustibles de la piscine du réacteur 4. Au départ, ils avaient prévu de déplacer les 1 535 assemblages de combustibles dans la piscine commune, ce qui offre plus de sécurité.
Quand le 11-3 est arrivé, la piscine commune contenait déjà 6 377 assemblages de combustibles alors que sa capacité est de 6 750. Ils ont transféré les combustibles en utilisant un conteneur pour y mettre les assemblages de la SFP4 (piscine à combustibles usagés du réacteur 4).
Or il s’avère qu’ils ne peuvent pas faire de la place pour 157 assemblages de la SFP4. En conséquence, Tepco a décidé de transférer 180 assemblages de combustibles neufs de la SFP4 vers la piscine du réacteur 6.

Tepco affirme qu’il leur faut beaucoup de temps pour obtenir l’autorisation d’utilisation des conteneurs de transfert comme raison à leur incapacité à faire de la place dans la piscine commune. D’un autre côté, Tepco a également déclaré qu’ils allaient essayer d’augmenter la capacité des conteneurs en production. Donc, il semble bien que ce soit simplement parce que Tepco n’est pas capable de produire des conteneurs assez vite.

Au 16 juin 2014, Tepco a transféré dans la piscine commune 22 assemblages neufs sur 204 et 1 056 assemblages de combustibles usagés sur les 1 331. Ils affirment toujours qu’ils auront fini tout le transfert pour la fin de 2014.


Vous pouvez lire ceci parce que nous avons survécu jusqu’à aujourd’hui.

About this site

This website updates the latest news about the Fukushima nuclear plant and also archives the past news from 2011. Because it's always updated and added live, articles, categories and the tags are not necessarily fitted in the latest format.
I am the writer of this website. About page remains in 2014. This is because my memory about 311 was clearer than now, 2023, and I think it can have a historical value. Now I'm living in Romania with 3 cats as an independent data scientist.
Actually, nothing has progressed in the plant since 2011. We still don't even know what is going on inside. They must keep cooling the crippled reactors by water, but additionally groundwater keeps flowing into the reactor buildings from the broken parts. This is why highly contaminated water is always produced more than it can circulate. Tepco is planning to officially discharge this water to the Pacific but Tritium is still remaining in it. They dilute this with seawater so that it is legally safe, but scientifically the same amount of radioactive tritium is contained. They say it is safe to discharge, but none of them have drunk it.


June 2014