Solar Payback Calculator
Estimate how long a rooftop solar system takes to pay for itself.
Result
4.5 year payback
- Annual generation
- 9,636 kWh
- Annual savings
- $1,561.03
- Payback period
- 4.5 years
Assumptions and notes
- Daily production per kW varies by location, roof orientation, shading and season — check a local estimate for your postcode.
- STC rebates, state programs and feed-in tariffs vary and are not applied automatically.
- Panel degradation, inverter replacement and electricity price changes are not modelled.
- Results are estimates only and are not financial, tax or legal advice.
Information last checked: August 2026.