Hindian wrote:
Since the earth stores billions of electrons, is there any way the
earth could be used as a usable battery? I guess its not a good
conductor but has any method been devised to make it a good conductor?

What about the ionosphere. Lots of charged particles there. If there
was some way to tap into the ionosphere, would that mean free flow of
electricity to the earth?

Just thinking out loud.
Hello,
The system earth-ionosphere is not a battery but rather like a
condenser. The electrical field strength is in normal times
approximately 100 to 150 V/m.
Thats great, would you say. Alas, the dielectric is to performing, too
good an insulator, and all you can expect is a columnal current of about
20pA/m^2.
By the way, the isea is not new and others have been disappointed...
Peter