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Advancing India's Thorium Nuclear Program

Published on: 18-Sep-2026

Source: Indian Express

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Advancing India's Thorium Nuclear Program

Article Summary

Nuclear Energy in India: Key Insights and Proposals

Thorium-Based Fuel Utilization

  • Expert Advocacy: Anil Kakodkar, former Chairman of the Atomic Energy Commission, supports the early introduction of thorium-based fuel into India's indigenous Pressurized Heavy Water Reactor (PHWR) fleet alongside continuing with the three-stage nuclear program pioneered by Homi Bhabha in the 1950s.
  • Strategic Shift: Current global trends are shifting from uranium to thorium, which aligns with Indian energy needs and abundant thorium resources.

Nuclear Energy Policies

  • National Policies: The government's National Nuclear Energy and Nuclear Fuel Recycle Policy drives reactor system choices and emphasizes indigenous development of PHWR technology for self-reliance and energy security.
  • Capacity Goals: India's nuclear mission targets achieving 100 gigawatts electric (GWe) of nuclear capacity by 2047, primarily relying on domestic PHWRs.

Challenges and Opportunities

  • Fuel Supply Issues: A decline in uranium supply due to geopolitical factors may impact India's nuclear energy goals in the next 10-15 years.
  • Fast Breeder Reactors (FBRs): Development of FBRs is ongoing but needs accelerated implementation to ensure future energy security and efficient breeding of nuclear fuel.

Innovative Fuel Options

  • HALEU and Thorium: Using High-Assay Low-Enriched Uranium (HALEU) blended with thorium in PHWRs is proposed to enhance safety, reduce waste, and expedite reaching the third stage of the nuclear program via Thorium Molten Salt Reactors (TMSRs).
  • Modularization Benefits: The introduction of Small Modular Reactors (SMRs) utilizing established PHWR technology could lead to efficient, clean energy supplies.

Economic and Technological Implications

  • Investment Attraction: PHWRs are positioned as robust, safe, and economically competitive technologies, making them appealing to investors.
  • Self-Reliance Emphasis: It is imperative to transition from uranium dependency towards domestic thorium utilization, fostering local technological advancements.

International Context and Cooperation

  • Global Trends: The nuclear energy market anticipates a supply-demand mismatch due to reluctance in uranium recycling.
  • Collaborative Opportunities: Opportunities for mutually beneficial international collaborations must respect the rights of all participating nations, promoting a stronger position for India.

Key Takeaways

  • Energy Independence: The move to thorium and the development of PHWR technology is critical for India's long-term energy independence.
  • Strategic Development: Expanding thorium use through innovative reactor designs will underpin future energy capacity and ensure alignment with global shifts in nuclear technology preferences.

This summary encapsulates the current discourse surrounding India's nuclear energy landscape while detailing government policies, expert insights, and the anticipated future of nuclear technology in the country.

Key Terms & Concepts

Anil KakodkarAdvocated thorium fuel use
Pressurised Heavy Water Reactor (PHWR)Key reactor technology
Three-stage nuclear programmeCore nuclear strategy for India
SHANTI ActRegulation for nuclear sector
Rajiv Gandhi Science & Technology CommissionNurtures scientific research
Homi Bhabha National InstituteResearch and education in nuclear science
100 gigawatt electric (GWe) nuclear missionNuclear capacity goal by 2047
Fast Breeder Reactors (FBR)Second stage of nuclear program
High-Assay Low-Enriched Uranium (HALEU)New thorium blending fuel
Molten Salt Reactors (MSRs)Planned for third stage
World Nuclear AssociationProjecting future nuclear capacity
220 megawatt electrical (MWe) PHWRs

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