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Battery Storage Payback Calculator

Calculate how long a home battery system takes to pay for itself. Compare Tesla Powerwall, BYD, and other batteries with your electricity rates and solar export.

Updated 2025-26 FYData stays on your deviceVerified formula

Disclaimer

This calculator provides estimates for general information purposes only. Results are based on standard formulas and may not reflect your individual circumstances. Always consult a qualified professional for advice specific to your situation.

How this calculator works

This battery storage payback calculator uses the latest data from official Australian government sources to provide accurate results. All calculations are performed in your browser — your data never leaves your device.

Updated for the 2025-26 financial year (1 July 2025 to 30 June 2026).

All calculations are performed in your browser — your data never leaves your device. Results are for general guidance only and should not be considered professional financial advice.

Built and maintained by Konstantin Iakovlev. Data sourced from the ATO and official Australian government sources.