@Tenpinmaster This is my view of this matter. It seems to me that the problem is where to get the hydrogen from. It has to be produced. There is no hydrogen gas source other than the sun. To do that today you need electricity. To get electricity you need power plants. What runs a power plant? Coal, oil, nuclear fission? We need to change the basic energy production to start with.
One other solution might be specialized bacteria, that breaks down biodegradable organic substances and releases hydrogen. There is very interesting research being done in this area.
Another problem with hydrogen is that it cannot be stored for long. It is so small, it seeps between the molecules of other material like the metal gas tank and disappears.
Fuel cells are very interesting, but I don’t see that it offers a beneficial solution over battery technology. Electric cars are the future, but to get there we have to change energy production.