On Apr 9, 4:25 pm, "noel.wade" wrote:
...The problem is Hydrogen...

Absolutely! Didn't we have this conversation at that restaurant in
ABQ?

Anyhow, my favorite treatise/screed/rant on this topic is that of Don
Lancaster of www.tinaja.com fame (.pdf format):

http://www.tinaja.com/glib/energfun.pdf

My favorite quote:

Electrolysis for bulk hydrogen energy is pretty
much the same as 1:1 converting US dollars into
Mexican Pesos.

Don's somewhat peculiar definition of what constitutes a "fuel" that
excludes hydrogen seems to rankle some folks, but his nomenclature
seems to hold at least internal consistency. I think it's worth a
look.

In other odd news, somebody on another forum was telling me about an
interesting research program to use algae to liberate electrons,
basically a biofuel cell:

http://en.wikipedia.org/wiki/Microbial_fuel_cell

Thanks, Bob K.
http://www.hpaircraft.com/hp-24