Solar Savings Calculator
See how much solar could save you and when it pays for itself. The calculator uses your state’s sun hours and your power use to estimate annual savings, payback period and a 10-year cumulative-savings chart.
The rest is exported for the feed-in tariff.
or from $31/week over 5 years , indicative finance
Run a trades business? Put a calculator like this on your own website, branded as yours.See how →How we estimate this
Solar savings depend on your state’s sunshine, how much of the generation you use at home (versus export), your electricity rate and feed-in tariff, and the system cost. Using more solar during the day dramatically improves the return.
Pricing reviewed: June 2026.
Doing more than just solar savings?
Build a combined estimate across every part of your project in one place.
Are you a trades business?
Put this calculator on your own website, branded to you, visitors get an instant estimate, you get a qualified enquiry with their details.
Understanding solar savingss in Australia
Solar savings depend on your state’s sunshine, how much of the generation you use at home (versus export), your electricity rate and feed-in tariff, and the system cost. Using more solar during the day dramatically improves the return.
Most quality systems pay for themselves in 3–6 years and then generate years of savings. The cumulative-savings chart shows the break-even point and your 10-year net benefit.
Frequently asked questions
How much does solar save in Australia?
A typical 6.6kW system saves around $1,000–$1,800 a year depending on your state, power use and tariffs. The calculator estimates your specific saving and payback.
How long until solar pays for itself?
Most systems pay back in 3–6 years. Using more of your solar during the day (rather than exporting it) shortens the payback period.
Does my state affect solar savings?
Yes, sunnier states like QLD, WA and NT generate more per kW than VIC or TAS. The calculator adjusts generation for your state’s average sun hours.
Run a trades business? Add this solar savings calculator to your own website →