<VV> Re: Electronic Vairs

[JVHRoberts at aol.com]

Except the predicted life of a NiMH battery pack is expected to exceed the  
life of the vehicle. 
 
The energy density requirement to make electric cars as useful as gasoline  
cars is over 20X where they are now. Not sure they will ever get there with  
conventional ionic battery technology. LiIon already has an energy density of  
better than 5X that of lead acid, and they store nowhere near enough energy for 
 vehicle propulsion.
 
In a message dated 8/21/2005 4:36:31 P.M. Eastern Standard Time, jld at wk.net  
writes:

Not to  argue but at $3,800+ for a battery pack seriously adds to the total 
cost  of operation a $20,000 vehicle.  Maybe you friend will just trade it  
at 95,000 miles, but with the new owner looking at nearly $4,000 to keep  it 
on the road what so you think he will be able to sell it for?
Being  on the leading edge cost lots of money.  Using old outdated  
technology is cheep, even if the maintenance cost are somewhat higher. We  
just need to find a battery with the electric density about 4 times  
lead/acid the economy of scale will make fairly cheep and half of the US  
will be electric.
Solar cells of the late 70's had efficiencies of 8%  now they  nearly 
15%.  When they get to 50% and the cost come  down to about $1,000 per KW it 
makes since but at $0.07 per KWH. it makes  no sense to install even if they 
were given to you.  You have to  figure the storage, maintenance, and 
interface cost also.
Jim  Davis