Science & TechnologySource: Press Information Bureau
A New Chapter in India's Nuclear Journey
Saturday, 11 April 2026
Read Original ArticleKey Points
India's Prototype Fast Breeder Reactor (PFBR) at Kalpakkam has achieved its first criticality, marking a significant milestone in India's nuclear power programme. This development is crucial for UPSC aspirants, particularly for GS Paper 3, which covers technology and energy security. Last Updated: 11-04-2026
Key Facts About India's Prototype Fast Breeder Reactor
- The Prototype Fast Breeder Reactor (PFBR) is a 500 MWe reactor located at Kalpakkam, Tamil Nadu.
- It marks India's entry into the second stage of its three-stage nuclear power programme.
- Developed by Bharatiya Nabhikiya Vidyut Nigam Limited (BHAVINI), the PFBR achieved its first criticality on April 6, 2026.
- India becomes the second country after Russia to operate a commercial fast breeder reactor.
- The PFBR is designed to use plutonium from Stage 1 reactors to breed Uranium-233 from thorium.
- This reactor is part of India's strategy to achieve net zero emissions by 2070.
India's Strategic Energy Vision
The successful criticality of the PFBR is a pivotal moment in India's clean energy strategy, aligning with national goals for energy independence and sustainability. As one of the few countries with a robust nuclear programme, India's focus on fast breeder reactors is set to enhance its energy security and contribute significantly to its economic growth. The country's ambition to expand nuclear capacity to 100 GW by 2047 underscores its commitment to a low-carbon future.
UPSC Relevance
- GS Paper 1: Indian History - Contributions of Dr. Homi Jehangir Bhabha.
- GS Paper 2: International Relations - India's position in global nuclear energy.
- GS Paper 3: Science and Technology - Nuclear technology and energy security.
- Prelims: Facts about PFBR, India's three-stage nuclear programme.
- Mains: Analytical themes on energy security, technological advancements in nuclear energy.
- Essay Paper: Topics on sustainable energy and India's nuclear policy.
FAQ Section
- What is the Prototype Fast Breeder Reactor?
The Prototype Fast Breeder Reactor (PFBR) is a 500 MWe nuclear reactor at Kalpakkam, Tamil Nadu, marking India's entry into the second stage of its nuclear power programme. - Why is the PFBR important?
The PFBR is crucial as it enhances India's energy security, supports its goal of net zero emissions by 2070, and positions India as a leader in nuclear technology. - What are the key features of India's nuclear programme?
India's nuclear programme is a three-stage process designed to utilize its thorium reserves, with the PFBR playing a key role in the second stage by breeding Uranium-233 from thorium.
Detailed Coverage
- Milestone Achieved: PFBR at Kalpakkam attained first criticality on April 6, 2026.
- 500 MWe Reactor: Built by BHAVINI at the Kalpakkam Nuclear Complex.
- Second Stage Entry: Marks India's entry into the second stage of its three-stage nuclear power programme.
- Global Significance: India becomes the second country after Russia to operate a commercial fast breeder reactor.
- Long-Term Vision: Aligns with India's commitment to net zero emissions by 2070.
- Three-Stage Programme: Designed to utilize limited uranium and abundant thorium resources.
- Stage 1: Utilizes natural uranium in Pressurized Heavy Water Reactors (PHWRs).
- Stage 2: Fast Breeder Reactors (FBRs) use plutonium from Stage 1.
- Stage 3: Thorium-based reactors will harness India's thorium reserves.
- Indigenous Development: PFBR technology developed by IGCAR under the Department of Atomic Energy.
- Nuclear Power Expansion: Significant expansion planned for India's nuclear energy programme.
- Nuclear Energy Mission: Target of 100 GW nuclear power capacity by 2047.
- Focus on SMRs: Rs 20,000 crore allocated for Small Modular Reactors.
- Next-Gen Designs: Advancements in reactor designs by BARC.
- SHANTI Act, 2025: Modernizes nuclear regulation and allows limited private participation.
- Technological Maturity: Reflects India's strong indigenous capabilities and vision.
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