RE: Hysteria2 Jul 2020 12:32
Pauldrayton - the real point is that wherever it comes from, but a bit more so when you're electrolysing water, you have to PUT IN at least as much energy as you get out to split off the hydrogen from the oxygen.
That power will come from a power station fed by gas and/or oil, and maybe partly by renewables.
You can then take that hydrogen away and use it to power a truck.
Unclear whether the whole process, including the inefficiencies and friction from the extra steps, actually uses more or less oil.