Look at it this way. I try to use this example to explain volts and amps to non technical friends.
Compare electricity to water
The pressure of the water
in a pipe or psi is like the voltage. Voltage is a way to measure the pressure of the electricity.
The amount of water that flows out of a pipe is like the amps or current
that flows out of a wire (or solar
panel or battery).
So consider this example.
You want to fill a swimming pool with water (or a battery
If you fill the pool from a pipe with water under 1000 psi it will flood the pool. Well not if the water pipe is only as big around as a soda straw. A case of a lot of pressure but not much water (or in electrical
terms, a lot of volts but not many amps so not much total power).
On the other hand, would you flood your pool if you tried to fill it with a water pipe with only 5 psi? Well if that pipe had a 10 ft diameter and was connected to a large resevoir then yes you would.
Your lightening bolt example is equivelant to a 10 ft pipe AND 1000 psi.
For the other engineers out there, I know the analogy isn't perfect and I am playing loose with some of the details but it's close enough for those that don't understand.