|Sent on:||Friday, September 21, 2012 3:06 PM|
Dave sent this to me and I thought you might be interested.
Been looking for this number for years…
Won’t we put the national electric grid at risk by adding electric charging to our system? A little known fact is that the refining of oil uses about6 Kilowatt hours (KWH)of electric energy per gallonaccording to the DOE. Electric cars generally travel 20-30 miles on 6 KWH of electricity so for every average gas powered vehicle replaced by an electric or hybrid vehicle we save up to 1.5 KWH’s of load on the electric grid plus electric vehicle’s charging load generally happens at night when the grid is idling with lots of cheap surplus KWH’s of energy available.
My personal number is 4.8miles/kwhr which means that if I replace a 28.8mpg ICE car with an EV I am usingNO additional electricity.
If I replace a car getting less than that I am actually saving electricity driving an EV. This doesn’t count natural gas consumed by the refining/upgrading process that could be better used in electricity generation (NG is actually the “premium fuel” because it can load follow).
DOE sounds like a credible source to me…