Some wonder why I am so confident that battery technology will never justify our transitioning away from internal combustion engines?
The answer is an energy density comparison between batteries and hydrocarbons. Let me offer a few rough calculations:
On a volume basis, I figure gasoline is about ten times more energy dense than batteries. (Replace the batteries in an EV with a full gas tank and you could ravel at least ten times as far.)
On a weight basis, I figure the comparison is more like twenty to one. This, of course, puts the kibosh on air travel by battery. (Even if one could find a way of powering a jet engine with electricity.)
So, kind reader, even if Mr. Musk could pull a rabbit out of his tuchus and eventually double battery efficiency, we are still parsecs away from energy density parity.
Afterthought: If Tesla could cram twice as much energy into its batteries, would they take twice as long to recharge?
STAND UP FOR HYDROCARBONS!