India has begun using nuclear heat from its Prototype Fast Breeder Reactor to produce green hydrogen in Kalpakkam, Tamil Nadu [1, 2].
This development marks a shift in clean energy production by integrating nuclear process heat directly into hydrogen generation. By utilizing a fast-breeder reactor, the facility creates a carbon-free fuel source that could reduce reliance on fossil fuels for industrial heating and transport [3, 4].
The project is part of the Prototype Fast Breeder Reactor programme, which aims to enhance long-term energy security [1, 2]. Unlike traditional hydrogen production that often relies on natural gas, this method uses the intense heat generated by the nuclear reactor to split water molecules. This process ensures the resulting hydrogen is classified as "green" because it emits no greenhouse gases during production [3, 4].
Scientists involved in the programme, including S. Sridhar, have worked to implement this technology at the Kalpakkam complex [1, 2]. The facility serves as a global first, demonstrating that nuclear process heat can be scaled for hydrogen production beyond electricity generation [3].
India is pursuing this technology to meet ambitious climate goals and stabilize its energy grid [4]. The integration of fast-breeder technology allows the country to maximize the energy extracted from uranium, while the hydrogen output provides a versatile energy carrier for sectors that are difficult to electrify [1, 3].
The facility is now operational and serves as a blueprint for future nuclear-hydrogen hubs across the region [2, 3].
“India has begun using nuclear heat from its Prototype Fast Breeder Reactor to produce green hydrogen.”
This breakthrough transitions nuclear energy from a purely electrical utility to a direct industrial heat source. By producing green hydrogen via nuclear process heat, India is creating a scalable model for decarbonizing heavy industries, such as steel and chemical manufacturing, that cannot be powered by batteries or wind turbines alone.
