For all the hype about go more electric, Western Canada is receiving so much cold from the polar vortex, the grid can't handle to drain so they are asking people to cut back on usage! Cut Back? Some provinces are sending electricity to help with the problem. If this type of weather continues, people will be worrying about living , so many homeless in the streets even if warming areas set up.
Heat exchangers do not work in temps below -15, they need electricity or wood or gas to survive.
Now add ev's to this equation, the powers that be should have upgraded power supplies years before this great idea hatched.