A recent episode of "Ask This Old House" aired on PBS that centered around home electric vehicle charging stations, more specifically the installation of a Clipper Creek unit.

Fair warning: the intro to the 10 minute spot is a little campy, in classic Old House style, but electrician Scott Caron does give a fairly thorough step-by-step walkthrough of what it takes to hard-wire a charging station to a residence.

Definitely a good primer for those who want to know the process.  Check out the complete episode here (link good through November 2nd, 2015)

Ask This Old House (Episode 5/21/2015)