Nuclear Energy

Nuclear Energy

GS Paper III: Science & Technology, Indigenization of Technology, Infrastructure (Energy), & Nuclear Policy

Context

According to Press Information Bureau (PIB) briefings, India’s civil nuclear program is undergoing a structural transition—moving from a state-monopolized, natural uranium-constrained setup toward a thorium-centric, private-participation framework aimed at achieving 100 GW of nuclear power capacity by 2047.

India’s Three-Stage Nuclear Power Programme

Formulated by Dr. Homi J. Bhabha in the 1950s, the three-stage strategy was engineered to circumvent India's domestic natural uranium deficit (accounting for less than 2% of global reserves) by utilizing its vast monazite sand deposits rich in Thorium-232 (~25% of global reserves).

India’s Three-Stage Nuclear Programme

Key Structural Bottlenecks & Challenges

• Capital Intensity & Extended Gestation: Nuclear power projects entail significant upfront capital expenditure and long gestation cycles (typically 10 to 12 years), which elevates financing costs and construction risks.
• Stage-to-Stage Fuel Transition Lag: Scaling from commercial Stage-I PHWRs to Stage-II fast breeders requires accumulating an adequate inventory of reprocessed fissile Plutonium-239 through closed fuel-cycle reprocessing facilities.
• Geopolitical Import Vulnerability: Low domestic ore grades require importing enriched uranium under International Atomic Energy Agency (IAEA) safeguards from suppliers such as Russia, Kazakhstan, and France.
• Public Perception & Civil Siting Delays: Concerns regarding radiological safety, thermal ecological discharge, long-term high-level radioactive waste isolation, and local land acquisition have historically prompted civil demonstrations (e.g., at Kudankulam and Jaitapur).

Recent Policy Shifts & Modernization Frameworks

• Nuclear Energy Mission Targets: A policy framework setting targets of ~22 GW by 2031–32 and 100 GW by 2047, backed by a dedicated ₹20,000 crore R&D allocation for Small Modular Reactors (SMRs).
• Indigenous Small Modular Reactors (SMRs): R&D focuses on factory-built, standardized modular systems—notably the Bharat Small Modular Reactor (BSMR-200)—to facilitate captive industrial decarbonization (such as steel, cement, and green hydrogen) and decentralized grid stabilization, with five units targeted for operation by 2033.
• Civil Liability Legal Reforms (SHANTI Act, 2025): Replaced legacy statutory regimes by rationalizing nuclear damage liability, aligning supplier liability clauses with international conventions (such as the Convention on Supplementary Compensation for Nuclear Damage - CSC), and removing strict retroactive liability on foreign and private component vendors.
• Private Sector Integration: Structural amendments enable private entities and joint ventures to partner with public sector undertakings like the Nuclear Power Corporation of India Limited (NPCIL) under Atomic Energy Regulatory Board (AERB) safety mandates.
• LWR Commercial Deployments: Supplementing indigenous PHWRs through bilateral cooperation using foreign Light Water Reactors (LWRs)—such as the Russian-engineered VVER-1000 series at Kudankulam—which utilize low-enriched uranium (LEU) fuel and light water as both coolant and moderator.

Conclusion

India’s civil nuclear roadmap is transitioning from a localized, capacity-constrained model to a scalable, diversified energy architecture. By modernizing statutory civil liability, developing indigenous Small Modular Reactors, and maintaining the technological progression toward Stage-III Thorium utilization, nuclear power can provide steady, low-carbon baseload electricity to support India's Net-Zero 2070 commitments.