At the American Council on Renewable Energy’s RETECH conference and expo last week, I was able to listen to a few presentations on renewables and transportation. It’s always interesting to hear about the auto industry from people on the outside, and the RETECH presentations lived up to expectations. I’ll be writing about a few of them this week. 

The most full-throated defense of hydrogen vehicles I heard was issued by Sandy Thomas, president ofH₂Gen Innovations, during the “Hydrogen, Fuel Cells & Advanced Engines” panel. H₂Gen is mostly interested in stationary hydrogen production stations, but Thomas believes that hydrogen is the one right propulsion system for vehicles, since nothing else will meet America’s greenhouse gas emissions, energy independence, and clean air targets. He had the presentation to prove that H2 cars beat battery vehicles, too, and was willing to share his slides with AutoblogGreen readers. You can read them all in the gallery below (there’s a reason we try to post items like this at the end of the day, when we think you’ll have time to indulge a bit). I’ve also written up some more of what Thomas said after the jump.