Hydrogen requires about 4 times the input electricity per mile driven than electricity for battery electric cars. That’s why it’s so much more expensive and almost no one uses it. And the fueling infrastructure is crazy expensive.

Personally, I think if we do have hydrogen cars in the future, hydrogen cars should require a plug and an enlarged lithium battery (say, 10kWh at least). Otherwise we’ll need to produce FAR more electricity than with battery-electric cars and consumers will be on the hook for far, far higher use costs.