Planning to use rollers running in track to support cotton duck doors. Removed the balance of metal from front of hangar doorway. Evaluated AEP's work to meter stack.Cut more limbs from trees on the north rear of hangar. Anna finished painting the picnic table. While drilling and tapping entry pipe for roller track, felt slight electrical shock from stray electrical current. Called AEP to report leaking current, measuring 80+ volts between the hangar pipe framework and the dirt. Ground cable in box felt hot to the touch.