Innovative new lightwater reactor HI-ABWR

Innovating to protect the future

The highly Innovative ABWR (HI-ABWR) is based on an international standard of ABWR design that meets the regulatory requirements of the UK and Europe has received design acceptance confirmation from the UK, reflecting lessons learned from the Fukushima Daiichi Nuclear Power Station accident. The HI-ABWR is a next-generation light water reactor that incorporates new safety mechanisms. It is equipped with innovative safety features, such as disaster countermeasures, control of unexpected accident escalation and reduce the reactor's impact on the environment.

In addition, it contributes to the realization of carbon neutrality through the reduction of spent fuel using high-burnup fuels and the stabilization of electric power systems by load following operations.

Innovative Safety

• The HI-ABWR is designed to address various disasters such as natural dangers including earthquakes and tsunami, internal fires and floods. The HI-ABWR minimizes the impact of disasters by strengthening the exterior wall and installing safety-divisional separation barrier.
• Controls the progress of accidents by a passive safety system that incorporates mechanisms driven using natural force without relying on an external power supply or the actions of operators to mitigate the impact incurred should an accident occur.

Contributing to the Realization of a Carbon Neutral Society

• Contributes to the stabilization of the electric power system by developing high-performance high-burnup fuels, load following operations, improving the utilization rate by rationalized maintenance, and reducing operating costs, thereby contributing to co-existence with renewable energy and realizing a carbon neutral society.