How much does a 10kW solar system cost in Australia?

By My Energy Mate Editorial · Last updated 24 August 2026

Quick Answer

A 10 kW solar system costs A$7,500 to A$13,000 installed in Australia as of August 2026, after the federal STC rebate. The range reflects panel tier, inverter brand and roof complexity. Adding a battery typically doubles the total.

The low end of the range buys tier-1 value panels (Jinko, Trina) with a Sungrow or GoodWe inverter from a direct local installer. The top end reflects premium back-contact panels (Aiko, REC) with a Fronius inverter or microinverters, or a complex multi-storey roof.

A 10 kW system generates roughly 36-44 kWh per day averaged across the year in most Australian capitals: more in Brisbane and Perth, less in Melbourne and Hobart. For most households that covers daytime usage with a large surplus, which is why 10 kW buyers increasingly add a battery at the same time.

Three-phase homes should specify a three-phase inverter (adds roughly A$500-1,000) to avoid export limits in some networks.

Go deeper: Solar Panels comparison table or the cost guide.