http://www.scientificamerican.com/article.cfm?id=electric-cars-cost-per-charge http://www.scientificamerican.com/article.cfm?id=electric-ca... Depending on the

http://www.scientificamerican.com/article.cfm?id=electric-cars-cost-per-charge http://www.scientificamerican.com/article.cfm?id=electric-ca... Depending on the efficiency of the implementation I'm sure (as well whether or not this is a valid study at all), but it seems that electric cars are able to do it significantly cheaper than gas. So those savings are probably not spend at the electrical outlet.