Another one of your great guesses? Don't bet on it happening any time
soon. They have been doing research on electric cars for a long time and
battery life and range have been a major problem. Don't forget that the
bigger the battery the heavier it will be, and the heavier it is, the
more energy it will take to move it.
Think about the fuel logistics for airplanes and space craft. My friend
is a retired airline pilot. He has told be about situations where he was
flying into an area with weather problems. He was concerned about being
stuck in a holding pattern and being low on fuel. One one flight He had
to insist on carrying extra fuel. They had to do a number of
calculations to consider how much extra fuel would be consumed and the
extra cost just to transport that fuel. He stuck to his guns and got
the extra fuel. As it turned out, they did get stuck in a holding
pattern. When things opened up he had to get prioritized due to low
fuel, landed and taxied to the gate and arrived with little more than
fumes in the tanks.