India's Nuclear Power Programme

India is a pioneer in the development of nuclear technology, particularly in generating nuclear power. The country has a robust infrastructure and expertise in Pressurised Heavy Water Reactors (PHWRs) that use natural uranium as fuel and heavy water as a coolant and moderator. This forms the foundation of India's nuclear power capabilities, complemented by some imported Light Water Reactor (LWR) units. The overall installed atomic power capacity stands at 8,180 MWe.

Three-Stage Nuclear Power Programme

• Stage 1: Involves setting up PHWRs and associated fuel cycle facilities.
• Stage 2: Focuses on Fast Breeder Reactors (FBRs) which produce more fuel than consumed, enhancing the use of natural uranium over 60 times through multiple recycles. This stage is crucial for building a plutonium inventory necessary for the next stage.
• Stage 3: Envisions the use of thorium as a core fuel to capitalize on India's abundant reserves. Thorium is converted into fissile material U-233 through nuclear transmutation.

Progress in Fast Breeder Reactor (FBR) Technology

India's first indigenous Fast Breeder Reactor at Kalpakkam achieved criticality, marking a significant step in the second stage of the nuclear programme. The reactor uses a mixed oxide (MOX) fuel and has a breeding capability to produce more fuel.

• FBRs are designed to enhance the production capacity of plutonium, which is vital for the transition to thorium reactors in the third stage.
• The Fast Breeder Test Reactor (FBTR) was established in 1985 and is operational, with further plans to construct additional FBRs.

Strategic Importance and Future Plans

India aims to increase its nuclear power capacity to 22,400 MWe by 2032. The strategy includes the construction of 10 new PHWRs and a commitment to a "closed fuel cycle" approach, which involves reprocessing spent fuel to separate useful isotopes.

• The closed cycle aims to multiply the fissile inventory and supports the use of thorium in the third stage.
• Transitioning to thorium-based nuclear power is crucial for India's energy independence, utilizing indigenous resources and reducing reliance on imported nuclear fuel.

Significance of Thorium Utilization

India's transition to thorium utilization is essential for long-term energy independence. The country possesses vast thorium reserves found in coastal and inland placer sands across multiple states. This shift not only supports energy needs but also showcases India's advanced scientific and engineering capabilities in nuclear technology.