But electricity is generated mostly through coal. For all the hype, solar and wind aren't capable of completely replacing other power sources and won't be for several decades. Nuclear is cleaner, but has its own controversies, as does natural gas for power generation (which is inherently less efficient than just using natural gas directly in cars).
In the US, coal no longer represents a majority of electricity generation, time to update your talking points. Also, it's silly to so quickly dismiss solar and wind, given the insane growth we've seen in this area in the past few years. 1.3GW of solar PV added in Q1 2015 (yes, speaking of Deloreans, that is more than the 1.21 'jigawatts' needed to power the time circuits) - that's more than half of all new electricity generation capacity added in the US during the same quarter (yes, more than even natural gas):
New US PV installations by quarter:
http://www.greentechmedia.com/artic...tial-Solar-US-Installs-1.3GW-of-PV-in-Q1-2015
Looking at the overall grid mix, the addition of these and other renewables, as well as the shift from coal to natural gas, means that 60% of americans already live in a part of the US where driving an EV produces fewer GHG emissions than the most fuel efficient non-plug-in hybrid. (An EV charged with natural gas-powered electricity is not necessarily less efficient than a vehicle with a combustion engine directly burning natural gas). Even since the first time the Union of Concerned Scientists published their map of GHG-based equivalent "fuel economy" for EVs, they've already had to update their map once to show the improvements made in just the past few years.
See the 2012 version of this map here:
http://blog.ucsusa.org/how-do-electric-cars-compare-with-gas-cars-656
With the rate at which we're already cleaning up the grid, an EV sold today will only get significantly more efficient overall by the time it's taken off the road.