The Department of Atomic Energy release of 27 April 2026 recorded Union Minister Dr Jitendra Singh's statement that India will become the second country after Russia to operate a commercial-level fast breeder reactor once the 500 MWe Prototype Fast Breeder Reactor at Kalpakkam is fully operational. Speaking at a workshop of MPs and MLAs on small modular reactors, he said the indigenously designed reactor achieved first criticality on 6 April 2026. The reactor was developed by the Indira Gandhi Centre for Atomic Research and built by BHAVINI. It uses uranium-plutonium mixed oxide fuel and is designed to produce more fuel than it consumes, placing it at the start of the second stage of India's three-stage nuclear power strategy. The release linked this stage to future use of India's large thorium reserves in the third stage. Dr Singh said Russia is currently the only country operating commercial fast breeder reactors, while countries such as the USA, UK, France, Japan, Germany and China have historically built or operated experimental fast reactors, many of which are now shut down. He connected fast breeder technology with India's clean-energy transition and the target of 100 GW nuclear power capacity by 2047. Reliable continuous clean power, he said, will be important for data infrastructure and advanced manufacturing. Under the recently launched Nuclear Mission, Rs 20,000 crore has been allocated and five small modular reactors are planned by 2033. Such reactors can support captive power generation, industry, dense population zones, remote areas lacking grid connection and repurposed thermal plants. The release placed nuclear power within a balanced energy mix needed for the Net Zero by 2070 goal.
Department of Atomic Energy Says on 27 April 2026 That India's 500 MWe Prototype Fast Breeder Reactor at Kalpakkam Marks a Major Step in the Three-Stage Nuclear Programme
The Department of Atomic Energy said on 27 April 2026 that India's 500 MWe Prototype Fast Breeder Reactor at Kalpakkam had achieved first criticality on 6 April and would make India the second country after Russia with a commercial-level fast breeder reactor when fully operational. The release linked it to the three-stage nuclear programme, thorium use, small modular reactors and the 2047 nuclear capacity target.
Key facts
- The Department of Atomic Energy release was posted on 27 April 2026.
- Dr Jitendra Singh said India would become the second country after Russia to operate a commercial-level fast breeder reactor once the Kalpakkam reactor is fully operational.
- The 500 MWe Prototype Fast Breeder Reactor at Kalpakkam achieved first criticality on 6 April 2026.
- The reactor was developed by the Indira Gandhi Centre for Atomic Research and built by BHAVINI.
- It uses uranium-plutonium mixed oxide fuel and is intended to produce more fuel than it consumes.
- The project marks a step into the second stage of India's three-stage nuclear programme and supports eventual thorium use.
- The Nuclear Mission has Rs 20,000 crore allocation and plans five small modular reactors by 2033.
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Practice MCQ from this story
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The 500 MWe Prototype Fast Breeder Reactor at Kalpakkam is primarily linked to which stage of India's nuclear power programme?
The release states that the Prototype Fast Breeder Reactor marks a significant step towards the second stage of India's three-stage nuclear programme. The first stage and later thorium use are related, but the Kalpakkam fast breeder reactor is not described as those stages or as a renewable energy project.
Source: Department of Atomic Energy
Frequently asked questions
What did the Kalpakkam reactor achieve on 6 April 2026?
The 500 MWe Prototype Fast Breeder Reactor achieved first criticality, beginning a sustained nuclear chain reaction milestone.
Why is the reactor important for India's nuclear programme?
It marks movement into the second stage of the three-stage nuclear power programme and supports the future use of thorium reserves.
Which institutions developed and built the reactor?
It was developed by the Indira Gandhi Centre for Atomic Research and built by BHAVINI.
What is the target for nuclear power capacity mentioned in the release?
The release referred to India's target of 100 GW nuclear power capacity by 2047.
What did the release say about small modular reactors?
Under the Nuclear Mission, five small modular reactors are planned by 2033 with an allocation of Rs 20,000 crore.
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