"We saved over $1,800 in our first year. The Mr Solar calculator gave us an accurate estimate before we even contacted an installer."— Sarah M., Sydney NSW
Australia's #1 Free Solar Savings Calculator
Find out how much you could save with solar panels. Get an accurate estimate in under 60 seconds — no signup required.
Calculate My Solar SavingsWhy Choose Solar in Australia?
- Reduce Electricity Bills: Cut your power bills by up to 80% with the right solar system.
- Government Rebates: Access federal STC rebates and state-based incentives to lower upfront costs.
- Fast Payback Period: Most Australian homeowners recoup their investment in 4–7 years.
- Increase Property Value: Solar panels add measurable value to your home.
- Energy Independence: Generate your own clean energy and reduce reliance on the grid.
- 25+ Year Lifespan: Quality solar panels come with 25-year performance warranties.
How Our Solar Calculator Works
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Enter Your Details
Provide your postcode and recent electricity bill amount — takes less than 30 seconds.
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Get Your Estimate
Our calculator uses location-specific solar irradiance and electricity rates to calculate your potential savings.
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Review Your Results
See your recommended system size, estimated annual savings, payback period, and 25-year return.
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Connect With an Installer
Request a free quote from a CEC-accredited solar installer in your area.
Solar Savings by State
- NSW Solar Calculator: Average annual savings of $1,400–$2,000 for a 6.6kW system in Sydney and surrounds.
- VIC Solar Calculator: Average annual savings of $1,200–$1,800 in Melbourne with feed-in tariffs up to 11.3c/kWh.
- QLD Solar Calculator: Queensland's high sun hours make it ideal — average savings $1,600–$2,400/year.
- SA Solar Calculator: South Australia's high electricity rates mean faster payback — typically 3–5 years.
- WA Solar Calculator: Perth homeowners benefit from over 8 peak sun hours per day on average.
What Our Customers Say
"The calculator was spot on. Our system paid itself back in just under 5 years and now we're exporting energy back to the grid."— David K., Brisbane QLD
"Really easy to use. Got my estimate in under a minute and had an installer contact me the same day."— Lisa T., Melbourne VIC
Frequently Asked Questions About Solar in Australia
How much can I save with solar panels in Australia?
Australian homeowners typically save between $1,200 and $2,500 per year with solar panels, depending on system size, location, and electricity usage. A 6.6kW system in NSW can generate around 9,000 kWh annually, offsetting a significant portion of your electricity bill.
What size solar system do I need for my home?
The right system size depends on your electricity consumption and roof space. Most Australian homes benefit from a 6.6kW to 10kW system. Use our free solar calculator to get a personalised recommendation based on your quarterly electricity bill and postcode.
How long does it take for solar panels to pay for themselves in Australia?
The average payback period for solar panels in Australia is 4 to 7 years, depending on your location, system size, and how much solar energy you use during the day. After payback, your solar system can continue generating free electricity for another 18+ years.
Are there government rebates for solar in Australia?
Yes. The federal government's Small-scale Renewable Energy Scheme (SRES) provides Small-scale Technology Certificates (STCs) that reduce the upfront cost of solar installation. Many state governments also offer additional rebates and interest-free loans.