[Duncan]

At the moment ultracaps are a white elephant
They need to go down in cost by a factor of 20 and up in energy storage by a factor of 10 to be of any use at all

 

[Duncan]

Like I said a cost factor of 20!

You will pay more than 20 times as much for the caps

If the batteries last 5 years that is 100 years

Even if the batteries only last 1 year it's 20 years and there will be something much better available well before then

 

[Duncan]

A number of solutions

Trailers
- with a load of batteries - used for home power when not behind the car
- with a generator (this is not very efficient)
- pusher trailer - the front end of something like a diesel golf/rabbit that pushes the car along

Batteries or a generator in the car - not normally much room!