10kW solar systems are on the large side for residential installations (in which 5kW to 6.6kW is a great deal more common). So as stated higher than, 10kW systems are typically most appropriate for properties or businesses with major quantities of daytime electricity intake over 40kWh on a daily basis. https://commercialsolarsystemsperth.wordpress.com/2024/09/19/7-7kw-solar-system-a-smart-choice-for-homes-in-western-australia/