it's actually a heck of a lot more than 20%
the bigger the generator, the more efficient power generation
is..
electricity is heck of a lot more efficient than the internal
combustion engine...
anyway.. i'm looking at a hybrid the next car i get.. it'll pay
itself in fuel savings 
in other news.. check out the past which Evanescence doesn't
want you to know about..
we all know the band like this


but before they became famous (due mostly to Amy Lee being voted
one of the hottest women in rock), they were...

They were a Christian-Rock group 
