not citric acid, not electron transport. use first stage of light
reaction in photosynthesis. H2O + photon -2 H+ and electrons and O

I am thinking more about make the hydrogen as you go AND have some
kind of storage for the hydrogen that is more stable, like H2CO3 =
H+ and HCO3. The actual electrons are what fuels ATP production
during the light cycle so electrons can be stored.
Ingrid

On Sun, 10 Jun 2007 09:10:13 -0700, Billy Rose
wrote:
If you are planing on using the Citric Acid Cycle
H2 + O2 is a great source for energy but I don't think you want a
pressurized cylinder of it under the back seat of your car.