Calculator, solar savings
Solar Savings Calculator
Estimate indicative annual bill savings from a solar system, using state-based generation yield assumptions. Actual savings depend on your usage pattern and retailer tariff.
Assumptions
Indicative generation yield: SA ≈ 1,500 kWh/kW/yr, NSW ≈ 1,400 kWh/kW/yr, VIC ≈ 1,250 kWh/kW/yr · self-consumption without a battery ≈ 35% of generation · feed-in tariff ≈ 6c/kWh. These are broad averages, your orientation, shading and roof pitch matter.
Estimated solar performance
- State generation yield
- 1,500 kWh/kW/yr
- Estimated annual generation
- ≈ 9,900 kWh
- Indicative annual savings
- $1,348 – $1,780/yr
Indicative only, subject to bill review and site assessment.
02Methodology
How we estimate solar savings.
We multiply your system size by a conservative state-level generation yield, assume a share of that generation is used on-site versus exported, then value each portion at your import tariff or feed-in tariff. Adding a battery materially changes self-consumption, see our Solar + Battery ROI calculator.