re: Compressing hydrogen to 10,000 psi uses up 15% of the energy being stored.
Since you are an aerospace engineer I am sure you will find this presentation will answer your questions.
http://www.hydrogen.energy.gov/pdfs/review04/st_2_newell.pdf
Note especially the tests it had to pass to get the certification it already has.
So stop spreading myths, like Zubrin does, based on speculation, not engineering tests.
Also, have your ever seen an ethonal fire? Or try to put one out?
Some samples.
http://www.fireworld.com/ifw_articles/ethanol_07.php
http://www.foxnews.com/story/0,2933,223097,00.html
Yea, sure, ethonal is safe.
