Meaningless (Score 5, Interesting)

Gasoline takes more energy to produce than you can get from it. That energy just came from the sun a million (?) years ago. Gasoline is a means by which we can transfer solar energy to our cars without sail-ssized solar panels.

Consider ethanol as a means to store energy from nuclear, solar, wind, tidal, hydro or other clean energy sources and transport it to your auto's engine.

I'd like to see ethanol compared to chemical batteries, fuel cells or others on an basis of efficency & cost.