For every success story you have 10 (or whatever) failures that nobody remembers.
> the cost will trend towards zero.
Why not just use batteries then? All processes that can be used to make hydrogen now are very inefficient, so unless energy literally costs zero hydrogen won’t still make much sense for cars.
Electrolyzer and fuel cells are electrochemical systems and are basically batteries themselves. There is no fundamental downside compared to choosing some other electrochemical system. People are just swallowing the FUD and marketing BS of li-ion battery companies. There simply isn't a big enough difference in efficiency for this to matter to begin with, and even then the gap will shrink away to nothing. For instance, for large installations it is already possible to do heat-recapture and use that heat to drive a turbine. We can see 85% efficiency and above pretty much right now. We are going to see more ideas like that and therefore there won't much of any real difference in efficiency.
The other point is that we are not here to just replace fossil fuels with something just as limited and problematic. The goal is to move all of society to something truly sustainable. In fact, if the goal is to replace every single vehicle on Earth with BEVs, then the goal is already a dead one. It would be both absurdly expensive and environmentally damaging to attempt that feat. As a result, we pretty much have to invest in hydrogen eventually anyways. So we might as well do so now, rather than keep spending everything on what is basically a transitional technology.
We might replace small/personal vehicles with BEV and larger ones with hydrogen.
It’s not a very good fuel source for small vehicles because of how unstable it is. You need significant amounts of energy to stop it from evaporating.
For large commercial vehicles that and distribution would be much easier.
> . We can see 85% efficiency and above pretty much right now
Multiply that by production efficiency and we’re just a bit above the level of ICE.
Hydrogen is not unstable for transportation purposes. It is safer than gasoline.
No. Wells to wheels efficiency, at least for large installations, would be not far off from what is possible with batteries. The fact that you even think that FCEVs are even close to ICE on efficiency shows that you've swallowed a lot of BEV propaganda. A fuel cell is 3x the efficiency of a conventional gasoline engine. BEVs simply are not that much efficient, and the gap continuously shrink.
