The Highly Innovative ABWR (HI-ABWR) is an innovative light water reactor based on the internationally standardized ABWR (UK ABWR), which has already received a Design Acceptance Confirmation (DAC) in the UK.
HI-ABWR enhances the UK ABWR by implementing passive safety systems, mitigation of exposure on operators and residents in case of a severe accident.

- Nuclear power is a clean energy source that will play a significant role in decarbonization and providing energy security. In COP26, more than 150 countries and regions declare carbon neutrality by 2050. In 2023, EU Taxonomy approved for the inclusion of nuclear power. After that, in COP28, 31 countries agreed to triple the world’s nuclear power capacity.
- The HI-ABWR contributes to a stable long-term power supply with its large-scale output and enhanced safety.

- Enhanced protection for safety systems against natural disasters, terrorism, and internal hazards
- A passive reactor cooling system improving decay heat removal during an accident
- Passive debris cooling systems effectively managing a melting core
- A radioactive substance containment system with a noble gas filter to suppress the release of radioactive substances during an accident

- Improved public acceptance with enhanced safety
- A stable long-term power supply with a large-scale output
- Feasibility and economical efficiency with proven technologies from UK ABWR

• Japan
• North America
• Europe

Conceptual design completed.

• Nuclear Energy - Hitachi
• HI-ABWR - Hitachi GE Vernova Nuclear Energy

• 7. Affordable and Clean Energy
• 9. Industry, Innovation and Infrastructure