A word of advise in regard to electric fencing....they work best on moist ground.
If the ground is dry and rocky it acts somewhat like insulation. A way to get around
this is to run alternating + and - wires close enough together that animals touch both.
As an example, I put a regular electric fence around my back yard to keep out cats
and raccoons. I followed the instructions which had the ground wire attached to rods
driven deep into the ground. It was ineffective because the fence was above crushed
rock pathways.