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Kalpakkam's PFBR
India's 500 MWe prototype with MOX fuel, starting up after twenty years of construction.
The Prototype Fast Breeder Reactor at Kalpakkam is the second step of India's three-stage nuclear program: heavy water with natural uranium, fast reactors with plutonium, and finally thorium reactors. Construction began in 2004; fuel loading started in 2024 and first criticality was expected in 2025 or 2026.
With 500 MWe and mixed-oxide fuel, it will be the largest commercial fast reactor outside Russia once it runs at full power.
Quick facts
| Power | 500 MWe |
|---|---|
| Fuel | uranium-plutonium MOX |
| Status 2026 | commissioning |