apparently you didn't watch the video of this hobbyist.
there are a select few who have the know-how to build their own water fuel cell, which is pretty much the main component. even in that video the guy claims it is his own "patented electrolysis system" people who have built such a thing will not freely part with the information, I did not say "evil" corporations. the word I said was "greed" you are misquoting me. It doesn't take a genius to see the patent war going, its not just tablets and cell phones, patent wars have been happening for 150+ years.
I'm going to read about using this in conjunction with turbochargers.