re: Compressing hydrogen to 10,000 psi uses up 15% of the energy being stored.
And I just have to point out that the last 'cartoon' slideshow you linked to discusses a storage system, and not a compression system that will address the concern that SDF is raising: that the equivalent of 15% of the energy stored in the hydrogen being 'tanked' is consumed to compress it to 10,000PSI.
Yeti
