12-06-2008, 11:18 AM
Awesome electric cars!
Let's see, charge led-acid or lithium ion batteries that have a finite number of life cycles and weigh a ton with some of that cheaply produced Helco electricity that is produce in an oil burning plant.
You lose energy every time you convert it.
You lose when you burn it to create steam,
then you lose more when you generate electricity with steam,
you lose more when you transfer electricity over power lines to the charger,
then you lose more when you charge a battery
then you lose when you run an inductive load / motor from a battery,
So at the end of the day those electric cars will effectively get 5 mpg.
Let's see, charge led-acid or lithium ion batteries that have a finite number of life cycles and weigh a ton with some of that cheaply produced Helco electricity that is produce in an oil burning plant.
You lose energy every time you convert it.
You lose when you burn it to create steam,
then you lose more when you generate electricity with steam,
you lose more when you transfer electricity over power lines to the charger,
then you lose more when you charge a battery
then you lose when you run an inductive load / motor from a battery,
So at the end of the day those electric cars will effectively get 5 mpg.