Evaluate the economic viability of nuclear power in India compared to renewable energy sources. Should India continue to invest in nuclear energy given the current trends in solar

Introduction

India’s energy transition is shaped by the twin goals of energy security and decarbonisation. The relative economic viability of nuclear power vis-à-vis rapidly expanding renewables has become a key policy question.

Economic Viability of Nuclear Power

• High Capital Costs Nuclear plants involve significant upfront investment, long gestation periods, and frequent cost overruns (e.g., PFBR).
• Low Operating Costs Once operational, nuclear energy provides stable, low fuel-cost electricity over long lifespans.
• Base-load Reliability Unlike intermittent renewables, nuclear ensures continuous power supply, reducing reliance on storage.
• Limited Economies of Scale in India Small fleet size and technology constraints hinder cost competitiveness.

Comparison with Renewable Energy

• Declining Costs of Solar and Wind Tariffs for solar and wind have fallen sharply, making them among the cheapest energy sources.
• Faster Deployment Renewable projects have shorter construction timelines and modular scalability.
• Intermittency Challenges Dependence on weather necessitates investments in storage and grid balancing.
• Lower Environmental and Safety Risks Renewables avoid issues of radioactive waste and catastrophic risks.

Arguments for Continued Nuclear Investment

• Energy Mix Diversification Reduces overdependence on coal and complements renewables.
• Decarbonisation Goals Provides firm, low-carbon power essential for net-zero commitments.
• Strategic and Technological Considerations Supports indigenous capabilities and long-term thorium-based programme.

Concerns and Limitations

• Financial and Time Overruns Delays reduce economic attractiveness compared to renewables.
• Public Acceptance and Safety Concerns Local opposition can stall projects.

Conclusion

While renewables are economically more competitive in the short term, nuclear energy remains crucial for providing reliable, low-carbon base-load power. A balanced energy strategy integrating both is essential for India’s sustainable energy future.