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

A 10kW solar system in Perth costs from $6,990 fully installed after the federal STC rebate (2026 pricing). It is the most cost-effective size per kilowatt for homes planning to add a battery.

Do I need three-phase power for a 10kW system?

No. Single-phase homes can install 10kW of panels with export limiting, though three-phase homes get full export capability. We confirm your supply type during the quote and handle all Western Power approvals.

10kW Solar System

$6,990$10,590fully installed, after rebates

The sweet spot for larger Perth homes and future battery owners. A 10kW system generates around 44kWh per day, comfortably covering a pool, ducted air-conditioning and an EV charger — with headroom to charge a battery.

Specifications

System size: 10 kW
Panels: 23x 440W
Inverter: 8 kW
Phase: Single or three-phase
Roof space: 48 m²
Daily output (Perth avg): 44 kWh
Suits usage: 30–45 kWh/day (large home, pool or ducted air-con)

Everything included

23x 440W tier-1 N-type panels
8kW hybrid inverter (battery-ready)
Full installation by PSW in-house teams
Grid application & meter changeover
15-year workmanship warranty
Online monitoring setup

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