I get your point but hydrogen isn’t just sea water, you’ve got an awful lot more energy to put in after the “tank is full so wrap up the hose and drive off” stage to separate the hydrogen from oxygen to get the fuel. The difficult bit comes after “get water”.
I get your point but hydrogen isn’t just sea water, you’ve got an awful lot more energy to put in after the “tank is full so wrap up the hose and drive off” stage to separate the hydrogen from oxygen to get the fuel. The difficult bit comes after “get water”.
And It generally requires a lot of electricity. So, batteries cut out the middleman.