Nuclear fusion reaction releases almost twice the energy put in

throwaway389430@lemmy.cafe to News@lemmy.world – 629 points –
Nuclear fusion reaction releases almost twice the energy put in
newscientist.com
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Why will a tokamak never work, exactly? We’ve been running fusion experiments in them for 60 years and have a pretty good idea that we can make one big enough to produce power. We’re just baby stepping through the work so we don’t build a $30 billion dollar power plant that’s missing a design element.

K-DEMO, JT-60, DEMO, CFETR, STEP, and the US DoE’s planned reactor suggest a high level of confidence that the science is already there. It’s just an engineering problem, much like the nuclear bomb in 1935.

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