I am not sure. I didn't know enough to agonize about that at the time! I am not sure I even read the thing about the distance between the ground and the energizer. I am guessing it isn't as critical as you are thinking - particularly if the ground holds water which clay does.
I think my...
I nearly went battery and just charge it when needed until I figured that the energizer can be located far from the fence. So then I went solar so I didn’t need to do anything.
I did have to get a new batter recently - the first one lasted just under three years I think.
I started as a newbie on this but it turned out not to be too hard.
You can get a pos-neg net fence which doesn’t need a ground rod at all. Basically the ‘ground wire’ is built into the net.
You can also have more, shorter ground rods and just pound them in whenever you set up. If you are...
I use a solar energizer. Parmak is the brand.
I use the Kencove fence because at the time it was the only one in green and black which was less visually intrusive.
You will likely need extra posts to limit sag so that is a hidden cost.
I have some Ptemier1 ‘Fiber Tough’ posts which are...