Why in the News
The Nuclear Power Corporation of India Limited (NPCIL) is setting up a new design vertical to support private companies deploying Pressurised Heavy Water Reactor (PHWR) technology. This follows recent legal reform enabling private participation in civil nuclear power. The move marks a shift from NPCIL’s traditional role as sole builder and operator of India’s nuclear fleet toward a design-support role for private entrants, addressing India’s stated need to scale nuclear capacity to meet rising electricity demand while keeping deployment within a technology NPCIL already operates at scale.
Why does India favour PHWR technology for private entry?
- Established domestic supply chain: PHWR technology has been indigenised in India since the 1980s, giving it a mature domestic manufacturing and fuel-cycle base that a newly entering private player can draw on.
- Natural uranium fuel cycle: PHWRs use natural, unenriched uranium, avoiding dependence on enrichment technology that remains tightly controlled internationally.
What does NPCIL’s new design unit change?
- From sole operator to technology enabler: NPCIL will now provide design support to private players rather than being the only entity that builds and runs reactors, opening a role private companies previously could not access.
- Institutional capacity test: Whether NPCIL’s new vertical can support multiple private projects simultaneously, without diverting engineering capacity from its own ongoing reactor construction, remains to be demonstrated.
Conclusion
NPCIL’s new design vertical operationalises the legal opening for private participation in nuclear power created by recent reform, using PHWR technology as the entry route. The next milestone is the first private project actually contracted for NPCIL design support.
Back2Basics: Pressurised Heavy Water Reactor (PHWR)
- A PHWR uses heavy water (deuterium oxide) as both moderator and coolant, and natural, unenriched uranium as fuel.
- India has built and operated PHWRs domestically since the 1980s, forming the bulk of its existing nuclear fleet.
- The design allows online refuelling, meaning the reactor need not be shut down to replace fuel bundles.
Matching Previous Year Question
“[2017, GS3, 15 marks] Give an account of the growth and development of nuclear science and technology in India. What is the advantage of fast breeder reactor programme in India?”
