Solar panel cost and savings in Perth, Western Australia
Perth sits at 31.95°S, 115.84°E in Western Australia, Australia. A typical residential solar system there is sized at 6.6 kW, laid out as 15 panels of 440 W each, mounted at a 32 degree tilt facing the sun's midday path.
Based on PVGIS solar radiation data for Perth's coordinates, that system produces an estimated 11,159 kWh in its first year. At the local electricity price of A$0.32 per kWh (export A$0.05 per kWh, daily supply charge A$1.10), that generation is worth an estimated A$1,016 a year to a household with typical usage patterns for a 3-person home.
Get a solar estimate for PerthIncentives in Perth
2 incentives currently apply to a system installed in Perth:
Cost and payback
Before incentives, a typical system in Perth costs an estimated A$5,940 to A$9,900 installed. After the incentives above, the estimated net cost is A$4,140 to A$8,100, and the system pays back in about 6.3 years at today's local electricity price.
These figures assume a typical 3-person household with no pool, electric vehicle or electric heating, and installation in 2026. Incentive values are provisional estimates, last verified on the date shown against each scheme, and can change. Electricity prices and incentive amounts shown here are set at the country level except where an incentive's value is itself calculated from Perth's local solar zone, as noted above; only the production and payback figures are calculated specifically for Perth's coordinates.
Frequently asked questions
How much solar power can a typical home in Perth generate?
A typical 6.6 kW system (15 panels) in Perth produces an estimated 11,159 kWh a year, based on PVGIS solar radiation data for its coordinates.
What does solar cost in Perth after incentives?
Before incentives, a typical system costs A$5,940 to A$9,900 installed. After the incentives listed on this page, the estimated net cost is A$4,140 to A$8,100.
How long does solar take to pay back in Perth?
At local electricity prices, a typical system in Perth pays back in about 6.3 years, with estimated annual savings of A$1,016.
What solar incentives apply in Perth?
Small-scale Technology Certificates (STCs), Federal battery rebate estimate. Each is detailed above with its estimated value, eligibility and whether it is a national or local scheme.
Nearby locations
All solar pages in Western Australia · All solar pages in Australia