The 6.6kW System Guide
Australia's most popular system size, explained.
6.6kW of panels paired with a 5kW inverter is the sweet spot for most homes.
Expect 24–28 kWh/day in summer and 14–18 kWh/day in winter, depending on location.
Typical install cost after STCs: $4,500–$7,500 for a quality system.
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