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by Robotbeat 1347 days ago
Charging at scale is just way easier & cheaper than deploying hydrogen infrastructure, and I don’t think people realize just how big of a difference there is. It takes approximately 4 times the electricity (when you include liquefaction, inefficiency of electrolysis, etc) to drive the same distance with hydrogen cars as with electric cars. And Hydrogen cars get about the same range on a tank as electric cars, but even fast charging is only about $3/useful-gallon-equivalent compared to $10/useful-gallon-equivalent for hydrogen even if you have to go Fast Charge once a week or so, you’re still WAY ahead.

Now if you’re talking plug-in hybrid hydrogen cars, that’s fine. You’ll be on pure electric 85% of the time anyway so the crazy expense of hydrogen fueling isn’t so bad.

2 comments

Maybe not viable for personal vehicles but I can see hydrogen fuel used for trucks/ships. Electric batteries are probably too heavy and take too long to recharge for long haul.
Batteries are fine for semi trucks, too, actually. Even 500 miles with full payload. Transoceanic ships are a major challenge for batteries, but the scale is large enough that maybe you could use liquid hydrogen. Or just synth fuels like methane.
The US. department of energy is pushing to have $1 per kilogram by 2030. ($2 per kilogram by 2025). The Toyota Mirai can go 402 miles on 16.8kg of hydrogen. And it takes 5 minutes to fill up.
The actual cost of hydrogen filling stations in California was $10/kg BEFORE the Russian invasion of Ukraine. Now it’s higher.

Takes 5 minutes to fill up if the hydrogen is pre-cooled and you happen to be at the filling station (which is rare).