Know that research is being carried out to investigate how energy released by nuclear fusion can be used to produce electrical energy on a large scale

1.7.3 Energy Resources

What is Nuclear Fusion?

Fusion is the process where two light atomic nuclei combine to form a heavier nucleus, releasing a huge amount of energy. It’s the same reaction that powers the Sun. Imagine two tiny balls of fire (hydrogen nuclei) bumping together to create a bigger, hotter ball that gives off a bright burst of light and heat. 🌞

The simplest fusion reaction is:

\$^1\text{H} + ^1\text{H} \rightarrow ^2\text{H} + e^+ + \nu_e\$

(two protons fuse to make deuterium, a positron, and a neutrino). The energy released comes from the mass difference, expressed by Einstein’s equation:

\$E = mc^2\$.

Why is Fusion Important?

• Produces almost limitless fuel (hydrogen is abundant).
• Generates no long‑lived radioactive waste like fission reactors.
• Produces minimal greenhouse gases, helping fight climate change.
• Could provide a steady, reliable power supply for future cities.

How Fusion Could Produce Electricity

Think of a fusion reactor as a giant, super‑heated kettle. The fusion reactions occur in a plasma (a soup of charged particles). The energy released heats a surrounding fluid (often a liquid metal or water). This heated fluid turns a turbine, which drives a generator to produce electricity, just like a conventional power plant. 🚀

Key steps:

1. Heat the plasma to millions of degrees.
2. Contain the plasma using magnetic fields (magnetic confinement).
3. Transfer heat to a working fluid.
4. Drive a turbine and generate electricity.

Current Research Projects

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