New Delhi, April 7: Fast breeder reactors will play a crucial role in delivering reliable, low-carbon base-load power with higher thermal efficiency, the government said on Tuesday, as India’s 500 MWe Prototype Fast Breeder Reactor (PFBR) achieved first criticality.
The milestone, marking the start of a controlled nuclear fission chain reaction, is seen as a significant step towards strengthening the country’s long-term energy security and advancing indigenous nuclear technology capabilities. The PFBR attained criticality on Mondey after meeting all safety stipulations laid down by the Atomic Energy Regulatory Board (AERB), which granted clearance following a rigorous review of plant systems. Moreover, Prime Minister Narendra Modi said in a post on X that the achievement marks a “defining step” in India’s civil nuclear journey. “India takes a defining step in its civil nuclear journey, advancing the second stage of its nuclear programme. The indigenously designed and built Prototype Fast Breeder Reactor at Kalpakkam has attained criticality,” he said. PM Modi added that the advanced reactor, capable of producing more fuel than it consumes, reflects the country’s scientific and engineering strength and is a decisive step towards harnessing vast thorium reserves in the third stage of the programme. “A proud moment for India. Congratulations to our scientists and engineers,” he said.