[TubaMorg]

Ken is correct (as usual). HHO does not exist. He is merely using electrolysis to make H2 and O2, the H2 being used as fuel for his torch. This process has been around for a long time, but is a inviable process for producing fuel cells since the energy required to split water is much higher than what you can get back.

But check this out, H2 fuel cell technology is still possible. After all what can be cooler than pollutionless transportation? Check out the web site for National Renewable Energy Laboratory (NREL). They have a few different alternative processes for making H2, the most attractive so far is their bio-hydrogen research. Well since I'm getting my phd. in biology this seems the coolest to me! There exists in this world particular types of algae that will produce hydrogen under certain growth conditions. The idea is to modify these algae and identify the particular growth conditions that maximize H2 output. They are already able to do it on a small scale, but the challenge remains to scale it up to large scale industrial production.

Really water is a poor source for H2, because the chemical bonds are so strong. NREL is looking at other sources like methane and such. But I think the bio producers are the way to go!