this post was submitted on 11 Feb 2024
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They make solar stations that will pull hydrogen right from the atmosphere. What carbon are you talking about...and you do realize the same power that would be used to make hydrogen in your example would also be charging batteries.
That is a waste of solar. It's more efficient to put in batteries then kinetic. If there is no more batteries to put it in, you transmit the power over wires.
With hydrogen it's wasteful to create from electricity, then wasteful to turn into kinetic. Its wasteful to store as it's the smallest atom so escapes easily, it's low density so needs compressing. Then, to move it, you have to move storage around instead of just transmit over wires.
Exactly. And just to be clear, because it's annoying me every time people gloss over this, it's not just some percentage points lost in the conversion of energy, it's actually ~75% of the energy that goes to waste, from energy production to the final motion of the wheels. EVs on the other hand only waste ~25% of energy. Even with the wishful thinking that the hydrogen can simply be created in times of energy overproduction, you can't beat a factor of 3.
Yep. H2 cars are pushed by the ignorant or the corrupt (oil money).