Does the issue of net energy gain or loss to produce the hydrogen concern you?
Yes, the same thing concerns me with electricity. In the European Union’s regular electricity mix, the battery electric car is worse than the hydrogen fuel cell car when you make the hydrogen from natural gas, because there’s still a lot of fossil energy used to make electricity,
The efficiency of the battery electric car per se is higher because you don’t have so many conversion steps. Everything depends on how you make the electricity. Eventually, we want to make hydrogen from renewable sources, like solar, wind, hydro, and biomass. And then you have a very low CO2 level and you have all the advantages of cars today: long range, three-minute refueling, and it can be applied to even city buses, so very big vehicles.
