Hi, I am a solar panel & battery installer in Perth & Peel area in Western Australia approved by CEC, NETCC, NECA. I run Fusion Sun Solar and I help Perth households and businesses pick systems that suit how they really use power. A few tips worth following: size the system from twelve months of bills and your daily kWh rather than the dollar figure, run the dishwasher, washing machine and pool pump between 10am and 3pm so you use your own sunshine, and keep panels free of dust, salt and bird droppings with a gentle hose-down early in the morning. North-facing panels give the best all-day output in Perth, while an east-west split covers morning and late-afternoon loads, and optimisers help if a chimney or tree shades part of the array. Check the inverter app every month because a sudden dip usually means shading, dirt or a tripped isolator. A battery makes sense when you export a lot by day and spend a lot after sunset, and it adds blackout protection. Ask for tier 1 panels, a solid inverter brand and a CEC accredited installer who will still answer the phone at warranty time, and book a safety and performance check every few years. See our work: https://fusionsunsolar.com.au/commercial/ https://fusionsunsolar.com.au/blog/ https://unitedstateswebdesigndirectory.com/profile/perth-wa/solar-panels-perth/30794 https://www.canstarblue.com.au/solar/solar-panel-buying-guide/