Solar Panels Perth
Compare costs, check rebates, and get your free personalised solar score for Perth in 60 seconds.
Get My Solar Score — Perth ☀LAST UPDATED: MAY 2026 · DATA: CLEAN ENERGY REGULATOR & STATE SOURCES
KEY TAKEAWAYS — PERTH
• 6.6kW system: $4,200–$6,800 after rebates — saving $1,700–$2,200/year
• Peak sun hours: 5.4h/day — excellent solar potential
• Electricity rate: 33c/kWh — every kWh of solar used directly saves this amount
• STC Zone 1: worth approximately $1,950 off a 6.6kW system
• Typical payback: 3–5 years, then 20+ years of free electricity
In This Guide
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.
With an average system cost of $4,200–$6,800 for a 6.6kW installation after federal rebates, Perth homeowners typically recoup their investment within 3–5 years. For a detailed breakdown of pricing factors, see our national solar cost guide. To understand all the rebates available in WA, read our WA rebate guide.
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 | $4,200–$6,800 | $1,700–$2,200 | 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 |
Adding a home battery to your Perth solar system increases self-consumption from ~35% to ~70%, reducing your reliance on grid electricity during expensive evening hours. At current WA feed-in rates of 2.8c/kWh — among the lowest in Australia — a battery's value proposition is strong, storing excess solar for evening use saves significantly more than exporting it. See our battery guide for costs and payback analysis. Your inverter choice also matters — read our inverter guide to understand your options.
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 $1,950 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.
Not sure which size is right? Our system sizes comparison guide breaks down the pros and cons of each option with detailed cost and savings projections. For a personalised recommendation based on your actual bill, try our free solar score calculator.
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Get My Solar Score ☀Is Solar Worth It in Perth?
In short, yes. Solar energy in Perth is one of the best home investments available. With electricity rates at 33c/kWh and an average quarterly bill of $425, the average Perth household spends roughly $1,700/year on power. A 6.6kW solar system costing $4,200–$6,800 typically saves $1,700–$2,200 in the first year alone.
3–5 yrs
PAYBACK PERIOD
$375,050,000+
25-YEAR SAVINGS
39%+
ANNUAL RETURN
With electricity prices rising 4–6% annually across WA, these savings increase every year. A $6,000 solar panel installation in Perth that saves $1,800/year represents a 30%+ annual return — comfortably outperforming term deposits, shares, and most investment properties. Plus, solar panels add 3–4% to your property value according to Australian research, making it a strong financial decision even if you plan to sell.
Perth Feed-in Tariffs
The current feed-in tariff in WA is approximately 2.8c/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 2.8c you'd earn exporting it.
Best Solar Panels for Perth
The best solar panels for Perth depend on your budget, roof space, and priorities. With 5.4 peak sun hours, Perth gets excellent irradiance — even mid-range panels perform well here.
Premium
SunPower, REC, LG
Highest efficiency (22%+), 25yr warranty
Mid-Range
Trina, Jinko, Canadian
Best value per watt, strong 15-25yr warranty
Budget
Risen, Longi, JA Solar
Lowest cost, 10-12yr warranty, CEC approved
All panels installed in Perth should be CEC-approved (Clean Energy Council) to qualify for STC rebates. For a full comparison of panel brands, efficiency ratings, and warranty details, see our best solar panels Australia 2026 guide. Your inverter choice is equally important — our inverter guide covers string, micro, and hybrid options.
Choosing a Solar Installer in Perth
Finding a reputable solar installer in Perth (postcodes 6000–6199) is critical to getting a quality solar panel installation that lasts 25+ years. With a population of 2.1M, Perth has a competitive local installer market — but quality varies significantly.
We recommend getting at least 3 quotes before committing. Our free solar score tool can connect you with up to 3 CEC-accredited, vetted solar installers in Perth — saving you the time of researching and calling around. Every installer in our network has been verified for quality, local experience, and customer satisfaction.
Solar Panels by Suburb — Perth
Explore solar panel costs, local tips, and installer recommendations for specific suburbs across the Perth metro area. Each suburb guide includes tailored advice for local roof types, shading conditions, and installation considerations.
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 $4,200–$6,800 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 $2,200–$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.
What are the best solar panels for Perth?
For Perth's conditions, premium brands like SunPower and REC offer the highest efficiency, while Trina and Jinko provide excellent value. All panels must be CEC-approved to qualify for STCs. The best choice depends on your roof space, budget, and whether you prioritise maximum output or value per watt.
How long does solar panel installation take in Perth?
A standard residential solar panel installation in Perth takes 1 day for panels and inverter. Larger systems or battery additions may take 1.5-2 days. The full process from quote to switch-on, including grid connection approval, typically takes 2-6 weeks in WA.
Will solar panels increase my Perth property value?
Yes. Australian research shows solar homes sell for 3-4% more on average. In Perth, a 6.6kW system costing $4,200–$6,800 could add $15,000-$30,000 in property value, making it a strong investment even if you plan to sell within a few years.