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solar system size.

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LIVE DEMO
1
Your Electricity Usage
How much power does your household use?
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Upload up to 4 bills for a more accurate annual average.
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✦ Up to 4 bills · All AU & NZ retailers
2
Location & Conditions
Affects solar generation estimates
Customer Nameauto-filled from bill
Property Addressoptional
Your Energy Retaileroptional
State / Region
Roof Orientation
Roof Tilt
Shading
3
Goals & Preferences
What matters most to you?
Feed-in Tariff (FiT) ¢/kWh exported
¢/kWh
Household Size
I already have solar ? Turn this on if you already have solar panels installed. We will only recommend a battery (and additional panels if your existing system is too small to cover your usage).
Auto-detected from bill — if missed, toggle on manually
Include battery storage ? Without battery storage, solar only powers your home while the sun is shining. Battery stores excess solar energy for evenings and overnight — essential for 88%+ self-sufficiency and minimal grid use.
Recommended — required for 90%+ self-sufficiency
Electric Vehicle (EV)
Adds +6 kWh/day to daily usage
Hot water system (heat pump)
Adds +4.5 kWh/day to daily usage
Pool pump
Adds +3 kWh/day to daily usage
Other / future load
Someone moving in, new appliance, lifestyle change
kWh/day extra
Disclaimer: These results are estimates based on typical industry assumptions and publicly available solar irradiance data. Actual system performance varies with specific site conditions, panel brand, inverter efficiency, installer quality, and energy usage patterns. Always obtain quotes from accredited solar installers (CEC-accredited in Australia) before purchasing.
Your System
Recommendation
☀️

Fill in your usage details and click "Calculate My System" to see your personalised solar and battery recommendation.

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