That's one of several possible fuels. What all of those have in common is that they are more expensive than kerosine, which in turn is more expensive than elect

That's one of several possible fuels. What all of those have in common is that they are more expensive than kerosine, which in turn is more expensive than electric. The big advantage of battery electric is cost. Wherever you can fly them, it will be the cheapest way to do it, by far.