This is my 100 amp main panel. I've updated the outlets and am slowly getting around to changing out the old wiring. Do I need to add a ground bar to this panel, or just wire it back with neutrals and grounds to the same bar, as it currently has? I do have a roll of #6 solid copper wire to run a new ground wire, to replace the old stranded (what looks to be aluminum wire)....Thank you all.
Main panels the ground and neutral bars/buses are bonded together, so another ground bar would only be for making the wire placement neater.
Sub panels the ground and neutral bars/buses must separated and not bonded together.
Aluminum bars go good with aluminum wire.
New electrical work they want you to use torque bars or torque screwdrivers to tighten connections to specific torque values. This is for all connections,panels,outlets, switches.