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Adelaide, South Australia

Adelaide has Australia's highest electricity prices — averaging over 40c/kWh — making it one of the strongest cases for solar anywhere in the country. With 5 peak sun hours and strong STC rebates, Adelaide households typically recover their solar investment in under 6 years.

☀ Get My Free Adelaide Solar Estimate → How it works
$560
Average quarterly bill
5.0 hrs
Daily peak sun hours
$3,100+
Typical annual savings
5–6 yrs
Average payback period

How Much Can Solar Save You in Adelaide?

The average Adelaide household uses around 18–28 kWh per day and pays approximately 6c/kWh. At those rates, a properly sized solar system can eliminate 500–80% of your electricity bill — saving $3,100 or more per year.

But averages are misleading. A household that runs ducted air-conditioning will have very different savings to a household on a single-phase connection. That's why SolarBill reads your actual electricity bill — so your recommendation is based on your real usage, not a guess.

Most Common System Size in Adelaide
The most popular system size for Adelaide households is 10kW — large enough to cover most daytime usage while remaining cost-effective. Higher-usage households often benefit from a 10–16.6kW system.
Battery Storage in Adelaide
A 10kWh battery in Adelaide typically covers evening usage until around midnight. A 25.6kWh battery provides overnight coverage for most households. SA feed-in rates are relatively low, making self-consumption via battery more valuable than exporting.

Solar in Adelaide — What You Need to Know

South Australia is the most battery-friendly state in Australia. SA Power Networks offers export limits in some areas, which makes a battery even more valuable — instead of being curtailed, you store excess generation for evening use. Adelaide is also eligible for the upcoming Solar Sharer scheme from July 2026.

STC Rebate for Adelaide
Adelaide sits in STC Zone 2. The STC rebate for a 10kW system in Adelaide is currently worth approximately $3,200–$4,000 depending on the current STC price — deducted from your installation cost upfront.
Peak Sun Hours in Adelaide
Adelaide receives an average of 5.0 peak sun hours per day annually. Summer peaks at around 5.8 hours and winter drops to around 3.8 hours. SolarBill uses your actual location for all calculations.

Get Your Personalised Adelaide Solar Recommendation

Upload your Adelaide electricity bill and SolarBill will calculate exactly what size system you need — based on your actual usage, your tariff, and Adelaide's solar data. Free, instant, no account needed.

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SolarBill covers all of Australia. Select your city for location-specific solar data and savings estimates.

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