New Delhi: The Nuclear Power Corporation of India Limited (NPCIL) has achieved a significant operational milestone with the successful completion of 1000 fuel channel refuelling at KAPS-4, a 700 MWe indigenously developed Pressurised Heavy Water Reactor (PHWR). This marks a major step in India’s advanced nuclear power programme, showcasing technological maturity and operational excellence.
KAPS-4: A Technological Marvel
KAPS-4 is the second 700 MWe indigenously developed PHWR, reflecting India’s growing capability in advanced nuclear reactor technology. The reactor demonstrates high operational efficiency and safety standards, reinforcing the country’s commitment to sustainable and reliable nuclear energy.
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Sophisticated Refuelling Operations
Refuelling in a PHWR is among the most complex and technology-intensive operations in nuclear power generation. The Fuel Handling System (FHS) at KAPS-4 features:
- Highly automated, precision-engineered equipment
- Advanced instrumentation for monitoring and control
- Multiple First-of-a-Kind (FOAK) systems ensuring seamless coordination
Completing 1000 fuel channels in approximately 18 months of operation highlights robust commissioning, system stabilization, and the technical expertise of Team NPCIL.
Complementary Achievements at KAPS-3
Strengthening this accomplishment, KAPS-3, the first 700 MWe indigenous reactor, successfully completed 2000 fuel channel refuelling earlier in 2026. Together, these milestones validate the reliability, scalability, and operational excellence of India’s homegrown 700 MWe reactor design.
About NPCIL
The Nuclear Power Corporation of India Limited (NPCIL), a government-owned enterprise under the Department of Atomic Energy, is responsible for the design, construction, operation, and maintenance of India’s nuclear power reactors. Established with the aim of providing safe, reliable, and sustainable nuclear energy, NPCIL has been instrumental in supporting India’s energy transition and expanding clean power capacity across the country.
