How Much Does Solar Cost in Perth? (2025 Prices)

Solar pricing in Perth has never been more competitive. Here's an up-to-date breakdown of what you should expect to pay for a quality solar installation in 2025.

Perth Solar System Costs 2025

3kW system (small home/low usage): $2,500–$4,000 after STC rebate
6.6kW system (most popular, medium home): $4,500–$7,500
10kW system (large home or small business): $7,000–$12,000
13.3kW system (large home, EV charging): $9,500–$16,000
Battery storage (10kWh): $8,000–$14,000 installed

The STC Rebate

The federal government's STC scheme provides an upfront discount on solar installations. For a 6.6kW system in Perth, this is typically $2,500–$3,500. The rebate is applied automatically by your installer. The scheme phases down each year until 2031, so installing sooner saves more.

Is Solar Worth It in Perth?

With Perth's high solar irradiance and rising electricity prices, a 6.6kW system typically generates 25–30 kWh per day on average across the year. If you self-consume half of that (saving ~15 kWh x 30c = $4.50/day), your payback period is around 3–4 years. Most quality systems carry a 25-year panel performance warranty.