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In the end, hydrogen is a just a form of energy carrier.
You're taking the original form of energy - fossil fuel, solar, whatever and converting that to potential in hydrogen.
You then have to store, transport, and fill the vehicle with it at high pressures.
Then when you're finally ready to use it, you burn it or use it to produce electricity to power the vehicle.
Each one of those steps results in a 20%-30% loss of energy.
Total waste.
It's better to start with electricity at the source and keep it that way until used.
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