General Studies Paper 3

The fusion energy programme in India has steadily evolved over the past few decades. Mention India's contributions to the international fusion energy project International Thermonuclear Experimental Reactor (ITER). What will be the implications of the success of this project for the future of global energy?(Answer in 150 words)

Achievements of Indians in Science & Technology; Indigenization of Technology and Developing New Technology./Science and Technology- Developments and their Applications and Effects in Everyday Life.

2025

10

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Introduction

Nuclear fusion is the process in which two light atomic nuclei combine to form a heavier nucleus, releasing enormous energy. It is considered a potential source of clean, safe, and virtually limitless energy. The International Thermonuclear Experimental Reactor (ITER), being built in France, is the world’s largest fusion experiment involving countries such as India, the EU, USA, Russia, China, Japan, and South Korea.

Body

India’s Contributions to ITER

  • Critical Components Manufacturing: India is responsible for supplying key reactor components such as the Cryostat, the world’s largest stainless-steel vacuum chamber.

  • Cooling Water Systems: Indian industries are developing complex cooling systems required to manage extreme temperatures.

  • In-wall Shielding and Power Supplies: India contributes shielding components and electrical systems for plasma operations.

  • Industrial Participation: Indian companies and research institutions like the Institute for Plasma Research (IPR) are actively involved.

Implications of ITER’s Success

  • Clean Energy Source: Fusion produces energy without greenhouse gas emissions, helping address climate change.

  • Energy Security: Uses abundant fuels like deuterium and tritium, reducing dependence on fossil fuels.

  • Reduced Nuclear Waste: Fusion generates far less radioactive waste than conventional nuclear fission.

  • Technological Advancement: Promotes innovation in materials science, superconductivity, and plasma physics.

Conclusion

If successful, ITER could revolutionize the global energy landscape by providing a sustainable and low-carbon energy source. It would significantly support global climate goals and help countries transition toward a secure and clean energy future.

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