On: TC Energy scraps Keystone XL pipeline project afte...

[mjevans]

Hydrogen is even smaller than helium, which is used for leak testing vacuum systems.

I hypothesize that a hydrogen leak is less destructive than an oil leak, but that's still a problem.

[neltnerb → mjevans]

Making a pipe leak tight to hydrogen versus leak tight to oil is not even playing in the same ballpark. Hydrogen leaks through practically everything, oil is viscous.

Plus hydrogen burns much more easily and the flame is transparent.

[ivalm → mjevans]

Atomic radius of helium is smaller than hydrogen 31 vs 53 pm. Hydrogen gas is also typically in the form H2, which is much larger. At the same time ofc oil pipelines will still be too leaky.

[randymercury → mjevans]

Favoring a shotgun approach towards GHG emissions downstream is there a better approach towards building an infrastructure distributing hydrogen?

That question isn't intended as rhetorical