Coulomb Technologies Electricity Cost Estimate
There weren't any further details, but if you remember, based on my calculation of gasoline at $3/gallon, my own electric bill and assumed electric propulsion efficiency of twice gasoline propulsion, electricity is about 1/3 the price of gasoline.
Having said that, I am a staunch supporter of electric cars and I am convinced it is the way of the future. But a reality check is that claims that some parties have made that you can drive 40 miles for a dime or two are greatly exaggerated.
Source: Automotive Engineering, May 2009 (P. 22)