Idle electric power grid could fuel most U.S. passenger vehicles right  now! Millions of Eco-Lemmings are running around buying inefficient hybrids & out of date fluorescents… while 84% of plug-in hybrid electric vehicles could power-up with little to no “extra grid impact”. Clearly this assessment needs to be looked at closer..
Moreover, the current power grid already has enough  "off-peak" electricity production and transmission capacity for 84% of these  vehicles if they were plug-in hybrid electric vehicles  (PHEVs).
 (Photo from www.pnl.gov)