text: " but I don't think they address the current grid's ability to handle 7M vehicles charging overnight."
  
  BINGO! We have a winner!
  
  Lots of talk about infrastructure to be built (like gas stations...) but few ever address the real infrastructure costs for thousands of home charging systems in each neighbourhood.
  
  I have to add that Tesla is not commercially viable and never will be. When the government hand-outs end I expect them to close their doors leaving Tesla owners....in the dark.
  
  Chevy Volt; an actual viable alternative with established private corporate support, not government dollars. I am mildly interested.