In a monumental leap for its strategic energy goals, India’s first indigenous Prototype Fast Breeder Reactor (PFBR) at Kalpakkam has successfully achieved ‘criticality.’ This milestone marks the successful entry of India into the crucial second stage of its ambitious three-stage nuclear power program, positioning the nation as a global leader in advanced nuclear technology.

Located at the Indira Gandhi Centre for Atomic Research (IGCAR) campus in Tamil Nadu, this 500 MW reactor is operated by Bharatiya Nabhikiya Vidyut Nigam Limited (BHAVINI). The sodium-cooled reactor is unique because it is designed to “breed” more fuel than it consumes—transforming Uranium-238 into Plutonium-239. Prime Minister Narendra Modi lauded the achievement as a “defining step,” stating that it showcases the depth of India’s scientific and engineering prowess.

The success of the PFBR is vital for India’s energy security as it paves the way for utilizing the country’s vast thorium reserves—the third largest in the world. This technology ensures minimal nuclear waste and highly efficient power generation. Initiated in 2004, the project has overcome numerous technical hurdles to reach this stage, promising a future of sustainable, carbon-free energy for the nation.