If fusion power takes off, could you produce helium as a by-product?
And that assumes perfect capture, too.
If you're going that route it'd probably be better to just use hot air with the energy.
This video was a fascinating watch: https://www.youtube.com/watch?v=_bDXXWQxK38
why not fusion powered ships/trains/airplanes
What could possibly go wrong?
and https://en.wikipedia.org/wiki/Lockheed_CL-1201
And dreams of fission trains: https://twsmedia.co.uk/2020/05/09/atomic-trains/
The military are mad. Mad and bad. It is in the job description.
We would all be better off if none of them (the military) existed
I expect that the containment vessels will get very radioactive.
But all a bit hypothetical, since none exist
(It's not surplus of power, but it is repeatable fusion actually happening).