There's nothing stopping FCEVs from being as efficient as BEVs. Even now, huge improvements are being found like 90% efficient electrolysis[1]. Future improvements in hydrogen and fuel cell technology could close the gap entirely.
Like I said, you're repeating many arguments that are a mirror of the arguments made against BEVs. It's pretty ridiculous to just repeat anti-EVs for something else while being pro-EVs.
The other thing is that this viewpoint is increasingly outdated. A lot of these "facts" date to the 2010s or earlier. These are more inline with a person being out of touch than someone that is informed.
90% efficient electrolysis doesn't matter when "getting hydrogen from the pump to your car's fuel tank" has 20+ percent energy losses. And from the tanker trailer to the pump. And...
This comes from the inherent thermodynamic inefficiencies of compressing something, letting it expand, and then compressing it again.
Those losses can be made much less than that. Theoretical minimal losses are on the order of 1-2kWh per kg, and in practice not much more than that[1]. Further efficiency improvements can get reality even closer to theoretical.
Most of these arguments are increasingly outdated, as I mentioned before. We're at the point where hundreds of billions of dollars are being spent on hydrogen right now[2]. So naysayers are more accurately described as being out of touch with latest events and not people with any special knowledge.
Like I said, you're repeating many arguments that are a mirror of the arguments made against BEVs. It's pretty ridiculous to just repeat anti-EVs for something else while being pro-EVs.
The other thing is that this viewpoint is increasingly outdated. A lot of these "facts" date to the 2010s or earlier. These are more inline with a person being out of touch than someone that is informed.
[1] https://www.greencarcongress.com/2021/03/20210307-topsoe.htm...