How much will your roof generate?
Perth averages about 4.4 kWh a day per kW installed. This works out what that means for a given size and orientation.
Perth solar systems average 4.4 kWh per day for every kW installed (north-facing, annual average). A 6.6kW system generates about 29 kWh/day; a 10kW system about 44 kWh/day.
29 kWh
Daily average
36.3 kWh
Summer day
18.9 kWh
Winter day
10.6 MWh
Per year
Perth average of 4.4 kWh/day per kW installed (north-facing, unshaded, annual average). Orientation factors applied per Clean Energy Council zone data. Shading and tilt are confirmed in your roof-specific design.
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All three run on the same Perth figures — Zone 3 STC rating, Synergy tariffs and DEBS export rates.