this post was submitted on 06 Jul 2025
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[–] Bimfred@lemmy.world 5 points 3 weeks ago* (last edited 3 weeks ago)

They're not producing fuel to continue the same reactions, which would be a violation of conservation of energy. They're producing fuel to run a different reaction. Less "perpetual motion machine," more "spinning a turbine to charge a battery to run an EV."

Edit: A better analogy is cracking water to capture the hydrogen, to later burn it in a fuel cell.