Duke Pratt school of engineering version here. http://www.pratt.duke.edu/duke_hotz_hybrid_system Still not enough information. If you take what they saay at face value it IS a catalytic reaction overall with the Methanol NOT being an energy source. But, this is not certain. Note that the system is a paper exercise so far. (as of 9 August 2011). His efficiencies are about equaled in Summer by a good Silicon PV panel and a LiFePO4 battery and are exceeded significantly by the same in Winter. Good start though. Russell On 19 August 2011 23:03, cdb wrote: > > =A0Instead of systems based on standard solar panels, Duke University > engineer Nico Hotz proposes a hybrid option in which sunlight heats a > combination of water and methanol in a maze of glass tubes on a rooftop. > After two catalytic reactions, the system produces hydrogen much more > efficiently than current technology without significant impurities. The > resulting hydrogen can be stored and used on demand in fuel cells. > > 3637.lynkx?utm_source=3DUK&utm_medium=3Demail&utm_campaign=3Dnews> > > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .