Ok, so pushing 5v down cat5 doesn't go far, 12v is better, more and more stuff is using 24v and some stuff uses 48v.
So, understanding this theory I get that more volts you have the less copper you need to push it.
Well I want to push some power around the farm, I don't need huge amps but I don't want to spend bucket loads on copper cables to get the amps where they're needed so it strikes me that I need to up the volts then drop them again when I get where I want to go.
Seems to me that I want 500 or 1000v so I can push a few watts where I want them?
I guess I'm looking for 300 to 1200w at the other end.