The two primary solar electricity systems are on-grid and off-grid. On-grid systems – also generally known as grid-tied and utility interactive – are linked to your mains electric power source. If your Perth, Western Australia dwelling produces more Electricity than it utilizes, your meter goes down so you deliver credits https://residential10kwsolarsystemwa.blogspot.com/2023/10/how-solar-panels-can-help-perth-reduce.html