Nuclear fission occurs when a heavy, unstable atom—like Uranium—is split apart by a neutron. This split releases a massive burst of energy alongside extra neutrons, triggering a continuous chain reaction. Today, India generates electricity using 24 fission reactors.
Pressurized Heavy Water Reactors (PHWRs): India relies heavily on these 20 indigenous reactors because they run on natural, unrefined uranium and use “heavy water” to safely cool the system.
Alternative Water Reactors: India also operates a handful of Boiling Water and Pressurized Water reactors. These designs use regular water to create high-pressure steam, which spins turbines to generate electricity.
The Fast Breeder Reactor (FBR)
India is taking a massive leap forward with its Prototype Fast Breeder Reactor. Unlike standard commercial reactors, an FBR does not just burn fuel—it actually produces more nuclear fuel than it consumes!
By running on Plutonium and mixing it with standard Uranium, the FBR generates power while simultaneously transforming the raw Uranium into fresh Plutonium.
This “breeding” cycle is a game-changer for maximizing limited radioactive resources.
Fusion and the Artificial Sun
While fission breaks atoms apart, nuclear fusion forces incredibly light atoms (like hydrogen) to join together. This is the exact same reaction that powers the Sun.
Fusion creates vastly more energy than fission while producing almost no dangerous radioactive waste.
To harness this ultimate power source, India is partnering with other nations on ITER, a massive experimental fusion machine in France. India is actively building critical cooling systems and components for this “artificial sun.”
India’s 3-Stage Energy Plan
Decades ago, Dr. Homi J. Bhabha designed a brilliant three-step roadmap to make India entirely energy-independent by utilizing our country’s massive natural reserves of Thorium.
Step 1: Use natural Uranium in standard reactors to produce daily electricity and stockpile leftover Plutonium.
Step 2: Feed that Plutonium into Fast Breeder Reactors alongside Thorium, which slowly converts the Thorium into a usable form of Uranium.
Step 3: Finally, transition to advanced reactors that run purely on the newly created Uranium and our endless Thorium supply.
Which specific part of India’s nuclear energy roadmap would you like to explore in more detail?