>Eg, all his math assumes that you get the same energy out of a battery that you put in.
If it was my math your are talking about, I assumed 80%.
It was, and I failed to see that. Still, 80% is a pipe dream, unless you are at 1 STD. try it at 40 below. or 120 above.
Look, I am in favor of research on batteries - but until we find one, hybrid cars are an ecological disaster.
Sorry for misreading you statements, not sorry for my analytic opinion of the relative merit of these toys.
The "carbon footprint" of a hybrid owner is many orders of magnitude greater than that of a Suburban owner.