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Why do we need fusion energy?
  • Fusion could be transformative for energy security and promises to support the fight against climate change

  • The low carbon energy created from fusion will be used to generate electricity in the same way as existing power stations

  • Fusion has the potential to provide 'baseload' power, complementing renewable and other low carbon energy sources as a share of many countries' energy portfolios

To produce fusion energy here on earth two forms of hydrogen are heated to extreme temperatures (10 times hotter than the core of the sun) to fuse them together. When this happens large amounts of low-carbon energy is released.

There is more than one way of achieving this, but all require heat, pressure, or both.

Keeping plasma well confined and stable enough to sustain fusion is hard. If the plasma cools, the fusion will stop. This is one reason why fusion is inherently safer than fission.

UKAEA uses strong magnets of hold the hot plasma in a ring-shaped machine called a tokamak.

Want to learn more?

Why not check out our Fusion 101 series, where we explain more about how fusion energy works, its benefits, and even dispel a few myths in less than a minute.

What is fusion energy?

To produce fusion energy here on earth two forms of hydrogen are heated to extreme temperatures (10 times hotter than the core of the sun) to fuse them together. When this happens large amounts of low-carbon energy is released.

There is more than one way of achieving this, but all require heat, pressure, or both.

Keeping plasma well confined and stable enough to sustain fusion is hard. If the plasma cools, the fusion will stop. This is one reason why fusion is inherently safer than fission.

UKAEA uses strong magnets of hold the hot plasma in a ring-shaped machine called a tokamak.

Why do we need fusion energy?
Benefits of fusion
  • Fusion could be transformative for energy security and promises to support the fight against climate change

  • The low carbon energy created from fusion will be used to generate electricity in the same way as existing power stations

  • Fusion has the potential to provide 'baseload' power, complementing renewable and other low carbon energy sources as a share of many countries' energy portfolios

Want to learn more?

Why not check out our Fusion 101 series, where we explain more about how fusion energy works, its benefits, and even dispel a few myths in less than a minute.

What is fusion energy?