[horseAMcharlie]

Would expanded civilian nuclear power provide some kind of sustainable helium production as a side effect or do the numbers not work out?

[skykooler]

Even nuclear fusion doesn't produce helium in large amounts; a large fusion plant would produce about 2000 liters / day, meaning you'd need 136 years worth of output from one station to fill a single airlander airship.

[dsr_]

Only if we change to fusion power, which is just fifty years away.