[Roccus]

West Virginia offers the sweetest deal. The state’s mining interests are salivating at the possibility of shifting automotive transportation from petroleum over to coal. Residents can receive a total credit of up to $15 000 for an electric-car purchase and up to $10 000 toward the cost of a personal charging station

Author is not up-to-date on this. Although there ARE tax credits for propane/butane/natural gas vehicles, the credits for electric vehicles and infrastructure were rescinded on April 15, 2013.

[Roccus]

Tax credits also extend to propane/butane/natural gas vehicle infrastructure.