Sizing a solar system comes down to your energy use, roof space, and sunlight. Here's how to work out the right number of panels.
The number of panels you need depends on three things: your annual electricity use, the amount of usable roof space, and how much sun your location gets.
A typical Australian home uses 15–20 kWh per day, which usually calls for a 6.6 kW system - around 16 to 18 panels.
Our team runs a full assessment of your roof orientation, tilt, and shading, then designs a system that maximises output and rebate eligibility.