Solar Panels Adelaide
Compare costs, check rebates, and get your free personalised solar score for Adelaide in 60 seconds.
Get My Solar Score — Adelaide ☀LAST UPDATED: MARCH 2026 · DATA: CLEAN ENERGY REGULATOR & STATE SOURCES
KEY TAKEAWAYS — ADELAIDE
• 6.6kW system: $4,000–$6,000 after rebates — saving $1,800–$2,400/year
• Peak sun hours: 5h/day — excellent solar potential
• Electricity rate: 38c/kWh — every kWh of solar used directly saves this amount
• STC Zone 2: worth approximately $2,800 off a 6.6kW system
• Typical payback: 3–5 years, then 20+ years of free electricity
In This Guide
Solar in Adelaide
South Australia has the highest electricity prices in the country, which means solar savings in Adelaide are among the best nationally. The state also has Australia's highest rooftop solar penetration — over 40% of homes have panels. Strong sun hours and the SA Home Battery Scheme make Adelaide one of the best places in Australia to invest in solar and battery storage.
💡 Local Tip
SA's high solar penetration means export limits are increasingly common. A battery is particularly valuable in Adelaide because it lets you use your solar instead of exporting at low feed-in rates (currently ~4c/kWh).
With an average system cost of $4,000–$6,000 for a 6.6kW installation after federal rebates, Adelaide 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 SA, read our SA rebate guide.
What Does Solar Cost in Adelaide?
Prices shown are after federal STC rebates (Zone 2). Actual costs vary by installer, panel brand, and roof complexity.
| System Size | Panels | Daily Output | Cost After STCs | Annual Savings | Payback |
|---|---|---|---|---|---|
| 5kW | 12–14 | 21–23 kWh | $4,000–$5,250 | $1,190–$1,478 | 3–5 yrs |
| 6.6kW | 15–18 | 27–30 kWh | $4,000–$6,000 | $1,800–$2,400 | 3–4 yrs |
| 10kW | 24–28 | 41–46 kWh | $5,800–$9,200 | $2,800–$3,600 | 3–5 yrs |
| 13kW | 30–36 | 53–60 kWh | $7,800–$13,650 | $2,763–$3,470 | 3–5 yrs |
Adding a home battery to your Adelaide solar system increases self-consumption from ~35% to ~70%, reducing your reliance on grid electricity during expensive evening hours. At current SA feed-in rates of 4.0c/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 Adelaide
FEDERAL STCs (Zone 2)
Small-scale Technology Certificates are applied as a point-of-sale discount. Zone 2 (high value) — worth approximately $2,800 on a 6.6kW system.
STATE: SA
SA Home Battery Scheme: subsidies up to $2,000 on batteries. No panel rebate but highest electricity rates mean fastest payback.
What Size Solar System for Adelaide?
A quick rule: divide your quarterly electricity bill by $100 to get your ideal system size in kW. The most popular system size in Adelaide 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 Adelaide?
In short, yes. Solar energy in Adelaide is one of the best home investments available. With electricity rates at 38c/kWh and an average quarterly bill of $500, the average Adelaide household spends roughly $2,000/year on power. A 6.6kW solar system costing $4,000–$6,000 typically saves $1,800–$2,400 in the first year alone.
3–5 yrs
PAYBACK PERIOD
$450,060,000+
25-YEAR SAVINGS
45%+
ANNUAL RETURN
With electricity prices rising 4–6% annually across SA, these savings increase every year. A $6,000 solar panel installation in Adelaide 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.
Adelaide Feed-in Tariffs
The current feed-in tariff in SA is approximately 4.0c/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 Adelaide exporting around 60–70% of generation would earn approximately $313/year in feed-in credits. The real savings come from self-consumption — every kWh you use directly saves 38c versus the 4.0c you'd earn exporting it.
Best Solar Panels for Adelaide
The best solar panels for Adelaide depend on your budget, roof space, and priorities. With 5 peak sun hours, Adelaide 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 Adelaide 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 Adelaide
Finding a reputable solar installer in Adelaide (postcodes 5000–5199) is critical to getting a quality solar panel installation that lasts 25+ years. With a population of 1.4M, Adelaide 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 Adelaide — 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 — Adelaide
Explore solar panel costs, local tips, and installer recommendations for specific suburbs across the Adelaide metro area. Each suburb guide includes tailored advice for local roof types, shading conditions, and installation considerations.