As far as I know, currently the hydrogen technology is vastly worse than battery cars (BEV) and could only win because of corruption. Which might still happen of course.
The issue is that hydrogen cars are about as expensive as battery electric cars (i.e. twice to tree times the cost of similarly sized and equipped ICE car) but BEV is much cheaper to run, while H2EV costs about as much per km as ICE car, so you get the worse of both world. Also the car is more complex - it also has to have a battery because you can't recuperate into hydrogen cell.
You can create hydrogen using electricity, but a lot of energy is lost, so it will probably always be more expensive than just using electricity.
The tech only makes sense in uses where weight is extremely limiting, like in airplanes or maybe ships? Spaceships?
The issue is that hydrogen cars are about as expensive as battery electric cars (i.e. twice to tree times the cost of similarly sized and equipped ICE car) but BEV is much cheaper to run, while H2EV costs about as much per km as ICE car, so you get the worse of both world. Also the car is more complex - it also has to have a battery because you can't recuperate into hydrogen cell.
You can create hydrogen using electricity, but a lot of energy is lost, so it will probably always be more expensive than just using electricity.
The tech only makes sense in uses where weight is extremely limiting, like in airplanes or maybe ships? Spaceships?