Best Solar Installers in Perth 2025

Perth has more sunshine hours than almost any other capital city in Australia, making it one of the best places in the world for solar power. With electricity prices rising, solar is no longer just an environmental choice — it's a straightforward financial decision for most Perth homeowners.

How Much Does Solar Cost in Perth?

A standard 6.6kW solar system (the most popular residential size) costs $4,500–$7,500 fully installed after the federal STC rebate. A 10kW system runs $7,000–$12,000. Battery storage (10kWh) adds $8,000–$14,000. Payback periods of 3–5 years are now common in Perth given the high solar resource and rising electricity tariffs.

What to Look For in a Solar Installer

Only use Clean Energy Council (CEC) accredited installers — this is required to access government rebates. Check panel and inverter warranties, read Google reviews, and get at least three quotes. Be wary of door-to-door solar sales and unusually low prices that often indicate cheaper off-brand components.

Perth's Feed-in Tariff

Synergy's current feed-in tariff is around 2.25 cents per kWh — very low compared to what you pay for grid electricity (~30 cents). This means self-consumption is far more valuable than export, which makes batteries more financially attractive than a few years ago.