Not sure how many more wrong statements you can get in a comment. I actually have a FCEV, mainly due to subsidies, but your FUD is ridiculous.
1kg of hydrogen has the three times the energy content as one kg of petrol, for starters. I get 60 miles per KG, so with a 6.6kg tank, range is comfortably 350 miles.
There's no leaks, don't know where your "several percentage a day" comes from, that's completely false
Conversion efficiency is 2x an ICE in terms of energy content to wheels - it is a lot less than electricity/battery, though
Here in CA, pretty much all of the hydrogen used in FCEVs comes from cow shit via anaerobic digestion into methane, then reformed- there are some carbon emissions from that, and I'm not sure if just burning the CH4 would be more efficient
Someone else said FCEVs are fuel cell hybrids - true to a limited extent, the FC in mine produces 2/3rds of the electrical power at max output, 1/3rd from the battery, and there is some (limited) braking regen which helps range
I'm in an older high rise, there's not enough supply to the building to charge electric vehicles, so fuel cells make sense.
As someone else said, it's more of a mix - FCs make sense for HGVs and construction equipment, but ICE using hydrogen is probably a better/cheaper short term option. Batteries are a non-starter for HGVs at the moment
Oh, and I get about 60,000 miles of free hydrogen, as well as $12.5k tax subsidies, so it's way cheaper than a BEV for me.
Biting the hand that feeds IT
