Ground your off-grid solar system properly to protect against lightning strikes and electrical faults. Install copper-clad ground rods at least 8 feet deep and connect them to your solar array frames, inverter, and battery bank using 6 AWG copper wire. Grounding off-grid solar systems also requires bonding all metal components together, including module frames, mounting racks, and combiner boxes. Test the continuity between grounding points with a multimeter to ensure resistance is less than 0.1 ohms. Regularly inspect and maintain your grounding system, tightening …