Hydrogen is an energy storage medium, not an energy source. You need to use energy to create hydrogen - and the energy required is 5x what would be required to

Hydrogen is an energy storage medium, not an energy source. You need to use energy to create hydrogen - and the energy required is 5x what would be required to just store the same amount of energy as electricity in a battery. 55kWh of electricity for hydrogen generation results in around 10kWh at the wheels of a hydrogen car. Or you can just shove the 55kWh directly to an EV battery.