[RayChuang88]

It may sound totally ridiculous but we're forgetting that by 2040, we'll likely have:

1) Every home will have its own solar panel array on the roof, backed up by a powerful battery pack somewhere in the house. This will provide the power source to charge automotive batteries on a home charger.

2) Automotive battery technology will be either high-density ultracapacitors made with carbon nanotubes or using a high-ion density liquid between the battery elements. As such, by 2040 the average automobile could go as far as 1,000 km (621 miles) between charges--and the battery back will be recharged in a few hours at home or under 15 minutes at a commercial charging station.

[Little Ray]

Boy, I can wait to see one of those “ultracapacitors” short out, say, in traffic accident.
Hopefully, from several hundred yards away...

[Ole Okie]

1) Every home will have its own solar panel array on the roof, backed up by a powerful battery pack somewhere in the house. This will provide the power source to charge automotive batteries on a home charger.

Sure they will. Sure they will.