Page Top

Hitachi

Hitachi-GE Nuclear Energy, Ltd.

We use Advanced predictive maintenance technologies to maintain reactor pressure vessels (RPVs) and reactor internals, the most critical equipment in nuclear power plants, to ensure the safety of nuclear power plants.

Advanced preventive maintenance technology (Water jet peening (WJP))

We use water jet peening (WJP), one of its own superior technologies, to maintain reactor internals.
WJP is a technology that reduces residual stress on welds by spraying the area with a high-pressure water jet (The Japan Society of Maintenology registered it as a heritage maintenance technology in 2020.)

Advanced preventive maintenance technology (Very small underwater robot (ROV))

We have developed a very small underwater robot able to move around freely under water to inspect or maintain small compartments within RPVs and reactors. These robots are currently being used in power plants.

Advanced preventive technology (Using ISI to maintain RPV and pipes)

We use its advantageous ISI equipment (UT equipment) to maintain the body and pipes of RPVs.

ISI:
In-Service Inspection
UT:
Ultrasonography Test

Nuclear power cyber security (Cyber defense training service)

Hitachi, Ltd. opened a comprehensive training/validation facility in the Omika Works to improve nuclear power generation facilities’ response to cyberattacks. We will provide a cyber defense training service.
This service is a solution using nuclear power plants simulators for organizational response training for cyberattacks targeting nuclear power plants and will continually support the enhancement of their customers’ cyber security.