DAE promotes indigenous thorium-based three-stage nuclear power programme for long-term energy security
DAE’s thorium-based three-stage nuclear power programme aims to expand India’s fissile resource through a closed fuel cycle and breeder-reactor pathway
- DAE frames thorium utilisation as a long-run pathway that depends on closed fuel-cycle reprocessing and breeder reactor capacity build-up.
- DAE reports PFBR first criticality on 6 April 2026 as the marker for entry into the second stage of the programme.
- DAE states MSR is envisaged for long-term thorium utilisation and that MSR R&D focuses on special materials, molten fluoride salt chemistry, and component development for a molten-salt demonstration reactor.
What happened
The Department of Atomic Energy (DAE) announced continued promotion of an indigenous thorium-based three-stage nuclear power programme focused on long-term energy security and nuclear fuel cycle self-reliance. DAE frames the programme around a closed fuel cycle, where spent fuel from one stage is reprocessed to extract fissile material for use as fuel in the next stage. DAE also highlights an explicit milestone associated with entry into the second stage and details ongoing thorium-related research and development.
Background and earlier position
UPSC can frame this topic as a stage-wise nuclear energy strategy that connects closed fuel-cycle reprocessing with breeder-reactor capability build-up, and then links later thorium use to uranium-233 breeding from thorium-232. The exam focus can also test how institutional capabilities and long-horizon R&D enable sequential capacity for large-scale deployment.
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