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> If they can get a continuous fusion reaction going converting the heat energy from that to electricity won't be a problem.

Even accepting the qualification that's not just a mere matter of engineering, capturing that heat from a source that hot is not without trouble. A bit like how there is plenty of energy in a single lightning strike and yet we can't easily catch it even though in principle 'just build a large enough capacitor and connect it to a lightning rod' is a workable recipe.

> Getting a contained fusion reaction that gives out more energy than input is the problem

Not in the least because the container itself is a very hard problem to solve.

> how to convert that into electricity is not going to be a problem.

It is also a problem, albeit a lesser one.

The better way to look at all of these fusion projects is a way to do an end run around arms control limitations with as a very unlikely by-product the possible future generation of energy. But I would not hold my breath for that. Meanwhile, I'm all for capturing more of the energy output by that other fusion reactor that we all have access to, and learning how to store it over longer periods. Preferably to start with a couple of days with something that doesn't degrade (think very high density super capacitor rather than a battery), but I'll take advanced battery technology if it can be done cheap enough per storage cycle. We're getting there.




There’s not plenty of energy in a lightning strike.

https://engineering.mit.edu/engage/ask-an-engineer/is-there-...


Funnily enough it's about the same order of magnitude as the fusion event discussed in this TFA: about 1 MJ.

Energy from one hohlraum ≈ energy from two lightning strikes




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