Planning your solar system doesn’t have to be overwhelming. Thanks to advanced digital tools, you can now discover how much solar power your roof can produce before speaking with an installer. One of the most effective and accurate options available to Australians in 2025 is SunSPoT, a free, government-supported solar mapping platform.
In this guide, you’ll learn how to use SunSPoT effectively, understand your results, and take the next step toward installing solar panels confidently.
What Is SunSPoT?
SunSPoT is a powerful online tool developed by the Australian PV Institute. It helps homeowners analyse their roof’s solar potential using high-resolution aerial imagery and local weather data.
The platform calculates:
- How much sunlight your roof receives each year
- The number of solar panels that can fit on your roof
- Expected annual electricity savings
- Estimated carbon emission reductions
This information gives you an accurate, realistic understanding of what solar can achieve for your home — before you request quotes.
How to Use SunSPoT Step-by-Step
Using SunSPoT is simple and only takes a few minutes.
Step 1: Open the Website
Visit https://www.sunspot.org.au/ and type your address in the search bar.
Step 2: Identify Roof Areas
SunSPoT will highlight suitable roof sections for solar panels. You can fine-tune the areas for greater accuracy.
Step 3: Select a System Size
Choose a solar system size (like 6.6kW or 10kW) to estimate potential generation, bill savings, and payback period.
Step 4: Review the Results
You’ll see:
- Estimated electricity bill savings
- Payback time
- Energy generated per year
Pro Tip: Try testing different roof sections or system sizes to see how the results change.
Why Homeowners Trust SunSPoT
Unlike generic calculators, SunSPoT provides location-specific data, factoring in real sunlight hours and shading patterns.
It helps you:
- Estimate realistic power generation
- Identify potential shading or orientation issues
- Understand savings before getting quotes
- Plan an optimal system size for your roof
SunSPoT’s accuracy and simplicity make it a must-use tool for any Australian homeowner planning a solar system in 2025.
Combine SunSPoT Insights with Real Quotes
After you’ve used SunSPoT to understand your solar potential, the next step is comparing real-world quotes from certified installers.
Read next: How Much Does Solar Cost in Australia in 2025
That guide helps you see how pricing, rebates, and installation costs vary across states, giving you a benchmark before requesting quotes.
Once you’re ready, you can get personalised offers here:
Request Free Solar Quotes from Trusted Installers
Combining SunSPoT’s performance data with real installer quotes ensures you make a decision based on both technical accuracy and price transparency.
Real-World Example
Imagine you live in Adelaide. You use SunSPoT and find your roof can fit 18 solar panels, giving you roughly a 7kW system. The tool shows you could save around $1,600 per year on energy bills.
Then, you visit Solar Proof’s cost guide and see that a 7kW system in SA costs between $5,000 and $6,500 after rebates.
Finally, you request local quotes — and discover that adding a small battery could bring your home close to energy independence.
With those three steps, you’ve built a full solar plan from start to finish — using real data, verified pricing, and trusted installers.
Why 2025 Is the Best Time to Go Solar
In 2025, Australian solar technology is smarter, cheaper, and more efficient than ever. The combination of falling hardware costs, better energy storage, and generous government incentives makes this the perfect time to invest.
Tools like SunSPoT and Solar Proof take the guesswork out of the process, helping homeowners make confident, data-driven energy choices.
Start Your Solar Journey Today
To plan your solar project efficiently:
- Use SunSPoT to analyse your roof’s solar potential.
- Read Solar Cost in Australia 2025 to understand average system pricing.
- Request your free solar quotes from trusted CEC-accredited installers.
By combining these tools, you’ll have everything you need to design a powerful, cost-effective solar system for your home.