Investor Presentaiton
Fuel Removal & Fuel Debris Retrieval
Fuel removal from the Unit 3 was completed in February 2021.
• Next step is to retrieve fuel debris, which is more technically challenging.
• Since February 2022, internal investigation of Unit 1 is conducted using an underwater robot.
Manufactures from Japan and the U.K. have been working together for developing and
testing the robot arm used for safely accessing and retrieving debris.
Internal Investigation of Unit 1
Robot Arm for Fuel Debris Retrieval
Sediment
2022/02/08
22:00:47
Source: TEPCO
SIDE/U
reinforcing steel
inside pedestal
●
2022/05/19
21:19:37
•
Fuel debris
collecting device
Metallic brush
Robot arm
for retrieval
Vacuum vessel
Not bend when being stretched up to 22 meters.
In a trial, retrieved fuel debris by the scale of a
couple of grams with its collecting device.
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