SSB Lecturette Notes: Nuclear Energy: Clean Power for India's Future


NUCLEAR ENERGY

Fresh SSB batches starts 1st & 15th of every month.

"Nuclear energy, today, represents one of the cleanest sources of energy available to mankind." – Dr. A.P.J. Abdul Kalam


Introduction 

Nuclear energy is the energy released during nuclear reactions, particularly fission, where the nucleus of an atom splits into smaller parts, releasing a tremendous amount of heat. This heat is used to produce steam that drives turbines to generate electricity. It is considered a low-carbon and efficient source of power.


How It Works 

⚛️ Nuclear Fission – Atoms like uranium-235 or plutonium-239 are split to release energy.
Energy Conversion – The heat from fission reactions is used to produce steam, which spins turbines to generate electricity.


Advantages of Nuclear Energy 

Low Greenhouse Gas Emissions – Minimal carbon dioxide compared to fossil fuels.
High Energy Density – A small amount of fuel can produce a large amount of energy.
Reliable Power Source – Provides a constant supply of electricity (base load power).
Reduces Dependency on Fossil Fuels – Helps in energy security and diversification.


Challenges of Nuclear Energy 

Nuclear Accidents – Incidents like Chernobyl and Fukushima highlight safety concerns.
Radioactive Waste – Disposal of nuclear waste is complex and requires long-term management.
High Costs – Setting up and decommissioning nuclear plants is expensive.
Proliferation Risks – Risk of nuclear technology being misused for weapons development.


Nuclear Energy in India 

🇮🇳 India is among the few countries with advanced nuclear technology and has the following highlights:

  • Operates 22 nuclear reactors across 7 power stations.
  • Kudankulam, Tarapur, Kalpakkam, Kakrapar are some major nuclear power plants.
  • Aims to increase nuclear power capacity as part of its clean energy mix.
  • Follows a three-stage nuclear program, utilizing uranium and thorium resources.

International Collaborations 

🌐 India has civil nuclear agreements with countries like the USA, Russia, France, and Australia.

  • After the India–US Civil Nuclear Deal (2008), India gained access to global nuclear technology and fuel despite being a non-signatory of the NPT.

Way Forward 

🔬 Invest in new-generation safer reactors (e.g., Small Modular Reactors)
♻️ Strengthen radioactive waste disposal and recycling technologies
🤝 Enhance global cooperation while maintaining non-proliferation commitments
📢 Spread public awareness to reduce fear and misinformation about nuclear energy


Conclusion 

Nuclear energy holds the potential to play a key role in meeting the world's growing energy demands while tackling climate change. For a country like India, balancing safety, sustainability, and technological advancement is the key to harnessing nuclear power responsibly and effectively

Sachin Jangir

AIR 128, NDA 152

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