NTPC Eyes Imported PWR Tech for Nuclear Fleet

Context: India is accelerating its nuclear energy programme to achieve 100 GWe by 2047, with NTPC planning a major expansion using a mix of indigenous PHWRs and imported PWR technologies.

India’s Nuclear Energy Push

• 100 GWe Target by 2047: India aims to achieve 100 gigawatt nuclear capacity as part of its long-term clean energy transition.
• Role in Energy Mix: Nuclear energy is expected to increase its share as a reliable, low-carbon baseload power source.
• Public–Private Participation: Around 70–75% capacity by the government sector, the rest by private players.
• High Capital Investment: An estimated requirement of around ₹20 lakh crore for achieving nuclear targets.

What is NTPC’s Plan?

• Dedicated Subsidiary: NTPC Parmanu Urja Nigam Limited (NPUNL) was formed in 2025 for nuclear expansion.
• 30 GWe Capacity Plan: NTPC plans to build 30 GWe nuclear capacity by 2047.
• Technology Mix Strategy:
  • Indigenous PHWRs (cost-effective, proven)
  • Imported PWRs (advanced, globally dominant technology)
• Global Collaboration: Talks with players from France, Russia, and the USA for PWR technology.
• Future Technologies: Inclusion of Small Modular Reactors (SMRs) for flexibility and scalability.

Difference between PHWR and PWR

Why NTPC is Preferring PWR Technology (Along with PHWRs)

• Global Standard Technology: PWRs dominate global nuclear fleets (used in the US, France, and Russia), making them a proven and widely accepted technology.
• Simpler Design & Faster Deployment: Use of light water as both coolant and moderator makes PWRs less complex and easier to construct, reducing project timelines.
• Higher Thermal Efficiency: PWRs generally have better efficiency and output, improving electricity generation per unit of fuel.
• Access to Global Supply Chains: Availability of enriched uranium and a global vendor ecosystem enables smoother fuel supply and technology access.
• International Collaboration & Investment: Helps India attract foreign technology, finance, and expertise, especially from advanced nuclear countries.
• Export & Standardisation Advantage: Aligning with global reactor standards enhances interoperability and future export potential.
• Complement to PHWR Limitations: While PHWRs are cost-effective, they have limited global adoption—PWRs balance this by offering scalability and global compatibility

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