India Set to Become World’s Second Nation with Commercial Fast Breeder Reactor

“With this achievement, India is moving decisively toward leveraging its abundant thorium reserves, placing it among a select group of nations with advanced nuclear technology,” Dr. Jitendra Singh said.

In a landmark development for India's nuclear energy ambitions, Union Minister Dr. Jitendra Singh announced that India is poised to become the second country in the world after Russia to operate a commercial-level Fast Breeder Reactor (FBR), marking a major leap in advanced nuclear capability.

Addressing a workshop of Members of Parliament and State Legislators on "Small Modular Reactors (SMRs)", the Minister highlighted that India has successfully developed its indigenously designed 500 MWe Prototype Fast Breeder Reactor (PFBR) at Kalpakkam, Tamil Nadu, which achieved first criticality on April 6, 2026—a crucial milestone in nuclear reactor commissioning.

A Game-Changer in India's Three-Stage Nuclear Programme

The PFBR, developed by the Indira Gandhi Centre for Atomic Research (IGCAR) and constructed by BHAVINI (Bharatiya Nabhikiya Vidyut Nigam Limited), marks the beginning of the second stage of India's three-stage nuclear power programme.

Unlike conventional reactors, fast breeder reactors are designed to generate more nuclear fuel than they consume, using uranium-plutonium mixed oxide fuel. This capability is critical for India, which aims to maximize its limited uranium resources while unlocking the vast potential of its thorium reserves in the third stage of the programme.

"With this achievement, India is moving decisively toward leveraging its abundant thorium reserves, placing it among a select group of nations with advanced nuclear technology," Dr. Jitendra Singh said.

India Joins an Elite Global Club

Currently, Russia remains the only country operating commercial fast breeder reactors, while several other nations—including the United States, United Kingdom, France, Japan, Germany, and China—have either discontinued or limited their fast reactor programmes.

India's progress toward commissioning its PFBR places it in a distinguished global position, reinforcing its technological self-reliance and leadership in next-generation nuclear energy systems.

Nuclear Energy Key to India's Clean Energy Future

The Minister emphasized that nuclear power will play a pivotal role in India's clean energy transition, particularly as the country aims to achieve 100 GW of nuclear power capacity by 2047.

With rising energy demands driven by sectors such as artificial intelligence, data centres, and advanced manufacturing, the need for reliable, continuous, and low-carbon energy sources is becoming increasingly critical.

"Nuclear energy offers a stable and scalable solution to meet future energy needs while supporting sustainability goals," he noted.

Push for Small Modular Reactors and Private Participation

Highlighting future pathways, Dr. Jitendra Singh underscored the importance of Small Modular Reactors (SMRs) as a complementary technology to large nuclear plants.

Under the recently launched "Nuclear Mission" with an allocation of ₹20,000 crore, India plans to develop five SMRs by 2033.

SMRs are expected to:

• Provide captive power solutions for industries

• Support energy needs in remote and off-grid areas

• Enable deployment in densely populated regions

• Facilitate repurposing of old thermal power plants

The Minister also pointed to enabling policy frameworks such as the SHANTI Act, aimed at encouraging greater private sector participation in the nuclear energy sector.

Towards Net Zero and Energy Security

Reiterating the government's long-term vision, Dr. Jitendra Singh stressed that a balanced energy mix—combining nuclear, renewable, and other clean energy sources—will be essential to achieving India's Net Zero target by 2070.

The successful development of the PFBR not only strengthens India's energy security but also signals a strategic shift toward sustainable, high-efficiency, and future-ready energy systems.

As India advances toward commissioning the reactor, the milestone represents not just a technological breakthrough, but a defining moment in the country's journey toward clean energy leadership.