Hi, I am a solar panel & battery installer in Perth & Peel area in western australia approved by CEC, NETCC, NECA.

Tips:

1. Size your system on your real usage: check 12 months of bills for daily kWh. Most Perth homes suit 6.6 kW to 10 kW.
2. Run the dishwasher, washer and pool pump between 10 am and 3 pm. Self-used solar is worth more than feed-in credit.
3. North-facing panels give the best all-day output; avoid shade from trees and chimneys.
4. Hose panels down gently a few times a year; never use pressure washers.
5. Check your inverter app monthly; a sudden drop means shading, dirt or a fault.
6. Add a battery if you export a lot by day and use a lot at night.
7. Pick Tier 1 panels and a CEC accredited local installer.

Useful guides:
https://fusionsunsolar.com.au/10kw-solar-panel-system/
https://fusionsunsolar.com.au/13kw-solar-panel-systems/
https://forum.idws.id/members/solarenergyperth.1305908/
https://www.middleswansolarwa.com.au/save-with-middle-swan-solar/