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🇦🇺 All States · Free for Homeowners

Free Solar Calculator
Australia

Upload your electricity bill and get a personalised solar recommendation in 60 seconds — based on your actual usage, your location and your tariff rate. No account needed.

Solar Calculator by City
Sydney
NSW · ZONE 3
4.8 hrsSun/day
$2,800+Annual savings
6–7 yrsPayback
Melbourne
VIC · ZONE 4
4.1 hrsSun/day
$2,200+Annual savings
7–8 yrsPayback
Brisbane
QLD · ZONE 2
5.2 hrsSun/day
$3,200+Annual savings
5–6 yrsPayback
Perth
WA · ZONE 1
5.5 hrsSun/day
$3,400+Annual savings
5–6 yrsPayback
Adelaide
SA · ZONE 2
5.0 hrsSun/day
$3,100+Annual savings
5–6 yrsPayback
Your City
ALL STATES
Upload your bill for a result specific to your exact address →

Solar Savings by State — How Does Your State Compare?

Solar savings vary significantly across Australia depending on electricity prices, sun hours and available rebates. Here's a quick comparison of what homeowners in each state can typically expect.

State Avg Tariff Peak Sun Hours Typical Annual Savings Avg Payback
NSW (Sydney)~34c/kWh4.8 hrs$2,800+6–7 years
VIC (Melbourne)~32c/kWh4.1 hrs$2,200+7–8 years
QLD (Brisbane)~32c/kWh5.2 hrs$3,200+5–6 years
WA (Perth)~30c/kWh5.5 hrs$3,400+5–6 years
SA (Adelaide)~40c/kWh5.0 hrs$3,100+5–6 years

These are typical figures — your actual savings depend on your daily usage, roof orientation and system size. Upload your electricity bill to get a result based on your real data.

Why Generic Solar Calculators Get It Wrong

Most solar calculators ask you to enter your monthly bill amount and give you a rough system size in return. The problem is that two households can pay the same bill amount but have completely different usage profiles — one might use 40 kWh on summer days with ducted air-conditioning, while another uses 15 kWh consistently year-round.

SolarBill reads your actual electricity bill to extract your daily usage, tariff rate, billing period, and feed-in data. This means the recommendation is based on what you actually use — not a guess based on what you pay.

Get Your Personalised Australian Solar Estimate

Upload your electricity bill — any Australian retailer — and get your recommendation in under 60 seconds. Free, instant, no account needed.

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