India Creates a World First

India has successfully produced hydrogen using heat from a nuclear reactor instead of electricity—a breakthrough that could transform clean energy worldwide.

Historic Milestone at Kalpakkam

Scientists at Kalpakkam, Tamil Nadu, commissioned the world's first hydrogen production facility powered directly by nuclear reactor heat.

How Green Hydrogen Is Usually Made

Most green hydrogen is produced through electrolysis, where large amounts of electricity split water into hydrogen and oxygen.

India's New Approach

Instead of relying mainly on electricity, India's new plant uses heat from a nuclear reactor to drive chemical reactions that produce hydrogen.

The Science Behind It

The plant uses the Copper-Chlorine Thermochemical Cycle, where recyclable copper and chlorine compounds help separate hydrogen from water.

Why This Is More Efficient

The process consumes far less electricity than conventional electrolysis while continuously recycling the chemical compounds involved.

Powered by Nuclear Heat

Operating at 450–550°C, the Copper-Chlorine cycle perfectly matches the heat supplied by the Fast Breeder Test Reactor at Kalpakkam.

Why Nuclear Makes Sense

Unlike solar or wind, nuclear reactors provide uninterrupted heat 24/7, enabling continuous hydrogen production throughout the year.

Industries That Could Benefit

Affordable clean hydrogen could help decarbonise steel, fertilisers, refineries, shipping and heavy transport—sectors that are difficult to electrify.

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