Photo of solar panels connected to container
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
the pv system micro-inverters initially connect to a cutoff/junction box at the array and then go to the sub-panel. 12-3 wire is used, which is 4 wires. the panel frames will be connected to an 8'' ground rod. the sub-panel wiring from the primary load center only has 3 wires; neutral is bonded to ground at the primary load center.