I bought a Chevy Volt and am saving money. The Volt goes about 40 miles on a single charge, although I have gotten as high as 57. (It switches to gasoline when the battery is depleted to allow a total range of almost 400 miles) The full charge requires 10.5 kwh or $1.15 in cost.
An ordinary car would require two gallons of gasoline to travel 40 city miles, a cost of $7. I save up to $5.85 per day, $2,135 per year, or $21,350 in 10 years. The Volt cost no more than a comparable car if you take advantage of the $7,500 tax credit set up during the Bush Administration.
You would obtain similar savings from other electric vehicles, such as the Nissan Leaf, Chevy Spark and Ford Focus.
H. Bishop Dansby