Does anyone know of electric fencing wire that would work with a tractor that is moved every day? I have a battery operated electric door that runs off a small solar panel. Ideally I would like this hot wire to run off the same panel/battery. Also, does it need to be grounded and if so could that be easily moved daily? Thanks!! After a year, we just had something dig under last night. The girls were safely locked upstairs. Luckily he could not get into the upper part so my chickens are safe but he'll be back. Ideas?