[citation][nom]and[/nom]I wrote my thesis on building a hydrogen economy. It can be done. For all those touting how inefficient it is to procure usable hydrogen, how efficient are automobile combustion engines at extracting the energy from the fuel? It would be far more efficient to use electric generators who specialize in energy efficiency to produce the electricity to power electric vehicles, or produce hydrogen powered vehicles. Pure electric vehicles would be the best with regards to efficiency, but they are very cost prohibitive for the average consumer. Building a Hydrogen powered vehicle would only require a need to make a few modifications to existing combustion engines (lubrication systems because gasoline acts as a lubricant whereas hydrogen gas does not). You could even have dual fuel, switching from hydrogen to regular gasoline if you run out of either. It can be done, unfortunately the powers that be will not let that happen. The best containers for stably storing hydrogen (metal hydride) are for some reason, nearly impossible to acquire for consumer use. Google Jack Nicholson and hydrogen. This concept perfectly displayed in the 70s...[/citation]
Want efficiency, ditch the conventional electricity generators and hydrogen converters, and go for something based on zero point energy. An electric powered generator extracting zero point energy from water would deliver some 500% the power output of a conventional generator using oil (or e85, coal etc) or converting force (windmills, hydrodams etc). The technology has been available for more than a decade so far, it's just not in the public eye as most trained labrats ignore stuff they don't understand.
Anyway, I only know what I've read, so I'm not sure how it works either. I just know it does.