[stu2010]

Because in most of the US, it is dramatically cheaper to charge an EV than fuel a similar gas vehicle.

These costs in this article are surprising to me, and very questionable without any actual numbers behind it. As a PHEV owner who can fuel with either gas or electricity, the 13c per kWh I pay is dramatically cheaper than gas at circa $3 a gallon, to drive any distance at all.

Confounding factors across the US may be that in some places using more electricity results in an increase in your marginal rate, in others it results in a decrease. Typically EV charging is not broken out as its own line item, so owners may not know exactly how many kWh their car is consuming. That doesn't change the fact that only a small number of places with very expensive electricity will have electric charging cost anywhere near gas.