Tesla Motors presentation – one for the energy geeks

Tesla Motors have posted a short segment from a recent presentation that highlights the energy efficiency of electric vehicles over those that use hydrogen or biofuels directly. In short, electric cars are at minimum twice as efficient as the alternatives in terms of energy required for miles traveled.

It also looks at the land mass required to replace 50% of US car travel using electric vehicles powered by electricity. Specifically, looking at the difference in land mass required to generate the electricity from solar, “best-case” cellulosic ethanol (this type of ethanol is currently in the research phase if I’m not mistaken) and corn-based ethanol sources. Of these options, solar is by far the clear winner.

To a lot of my readers, that probably sounds like a bunch of gobbledygook. But it is very impressing to a (budding) energy-geek like me…