Fuel cell companies use hydrogen to generate energy.Bloom energy uses solid Oxide Fuel cell a special type of fuelcell
H is not such a good idea . His very explosive . A tank if 1 gallons could flatten a block. I have worked with helium and it would leak through anything,and H will be much worse.
I think Fuel Cells are not the Salvation of our future Energy source. At the present time, do you know how they make Hydrogen CELLS, well, guess what, they start with Natural GAS, yes, as the main fuel, and through a process turn that into H2 and CO, what a deal. Check it out. So, until we find a better way to make H2 and not use Natural gas, I think its a joke. Water has a lot of H2 in it but its expensive to separate it. Unless you use NUCLEAR POWER, hey why dont we build NUCLEAR POWER and make all the cheap H2 we need. THINK about it.