this post was submitted on 01 Feb 2026
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Science Memes

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[–] Venat0r@lemmy.world 4 points 2 days ago* (last edited 2 days ago) (3 children)

And you'll only need about 320 million GWh per ~80kg person... plus 4 million GWh per kg of supplies, equipment and ship weight...

[–] bufalo1973@piefed.social 3 points 1 day ago* (last edited 1 day ago) (1 children)

So 340 PWh per person. A couple of guys with a static bike and a dynamo and that's it😜

Note: the Earth receives 170 PWh of energy from the Sun in a year.

[–] Venat0r@lemmy.world 1 points 1 day ago (1 children)

Sounds feasible for a fusion reactor to provide at some point in the very distant future.

[–] bufalo1973@piefed.social 1 points 1 day ago

Twice the full energy the Sun gives the Earth in a year for each person is not a future fusion reactor level. πŸ˜€

[–] Venator@lemmy.nz 3 points 1 day ago* (last edited 1 day ago)

Oh and also thats just the pure energy for acceleration/deceleration, not life support, steering, thrust ineffeciencies, take off, landing etc... πŸ˜