Interesting comparison chart here of home heating coal to other fuels. They say one ton of coal equals 8,200 KWh, 306 gallons of propane, or 1.4 cords of dry wood.

If (when) we run short of natural gas, I expect that people will turn to electric heating, since it seems to be readily available and clean. If this electric heat is derived from coal, how much is the equivalent amout of coal to the other calculations, delivered in this roundabout fashion?

If this roundabout approach is used, couldn't we end up with more demand on the grid than it is set up for?

Thanks for that useful link.