Solar Panels Perth
Compare costs, check rebates, and get your free personalised solar score for Perth in 60 seconds.
Get My Solar Score — Perth ☀Solar in Perth
Perth is one of the sunniest capital cities on Earth, with exceptional solar irradiance year-round. STC Zone 1 rating means maximum federal rebates. WA operates on a different electricity market (Synergy/Western Power) with the DEBS feed-in scheme paying time-varying rates — higher for exports during peak demand periods (3–9pm).
💡 Local Tip
WA's DEBS (Distributed Energy Buyback Scheme) pays more for exports during 3–9pm. A battery that stores midday solar and exports during DEBS peak hours can earn significantly more than the base feed-in rate.
What Does Solar Cost in Perth?
Prices shown are after federal STC rebates (Zone 1). Actual costs vary by installer, panel brand, and roof complexity.
| System Size | Panels | Daily Output | Cost After STCs | Annual Savings | Payback |
|---|---|---|---|---|---|
| 5kW | 12–14 | 22–25 kWh | $4,000–$5,250 | $1,065–$1,333 | 3–5 yrs |
| 6.6kW | 15–18 | 29–33 kWh | $3,800–$5,800 | $1,500–$2,000 | 3–4 yrs |
| 10kW | 24–28 | 44–50 kWh | $5,500–$8,800 | $2,300–$3,000 | 3–5 yrs |
| 13kW | 30–36 | 58–65 kWh | $7,800–$13,650 | $2,448–$3,106 | 3–5 yrs |
Solar Rebates in Perth
FEDERAL STCs (Zone 1)
Small-scale Technology Certificates are applied as a point-of-sale discount. Zone 1 (highest value) — worth approximately $3,200 on a 6.6kW system.
STATE: WA
DEBS feed-in scheme with time-varying buyback rates. No direct panel rebate.
What Size Solar System for Perth?
A quick rule: divide your quarterly electricity bill by $100 to get your ideal system size in kW. The most popular system size in Perth is 6.6kW, which suits the average household using 15–25 kWh per day.
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Get My Solar Score ☀Perth Feed-in Tariffs
The current feed-in tariff in WA is approximately 2.5c/kWh for excess solar exported to the grid. With feed-in rates this low, maximising self-consumption (using solar during the day) is more valuable than exporting. A battery can help shift solar to evening use.
At current rates, a 6.6kW system in Perth exporting around 60–70% of generation would earn approximately $211/year in feed-in credits. The real savings come from self-consumption — every kWh you use directly saves 33c versus the 2.5c you'd earn exporting it.
Solar in Nearby Areas
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Frequently Asked Questions
How much do solar panels cost in Perth?
A standard 6.6kW solar system in Perth costs approximately $3,800–$5,800 after federal STC rebates. Prices vary depending on panel brand, inverter choice, and installer. Premium systems and larger 10kW+ installations will cost more. Get your free solar score above for a personalised estimate.
How many peak sun hours does Perth get?
Perth receives approximately 5.4 peak sun hours per day on average. This is factored into our solar score calculator to give you an accurate estimate of how much electricity a solar system will generate on your roof.
What rebates are available for solar in Perth?
Homeowners in Perth, WA are eligible for federal Small-scale Technology Certificates (STCs) which reduce upfront costs by $2,000–$4,000 depending on system size. Additional state-level incentives may also apply — use our calculator above for a full rebate breakdown.
Is solar worth it in Perth?
Yes. With 5.4 peak sun hours daily and electricity rates around 33c/kWh, most Perth homeowners see a payback period of 3–5 years. After that, the savings are pure profit for the remaining 20+ years of the system's life.
How do I find a good solar installer in Perth?
Use our free solar score tool to get a personalised analysis, then optionally connect with up to 3 CEC-accredited, vetted installers in the Perth area. We only partner with installers who have verified reviews and at least 2 years of local experience.