Find the right battery size for your home

Our free calculator models your actual energy usage to recommend the ideal solar battery system — tailored for Australian homes and tariffs.

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How it works

Three steps to a confident battery decision.

Calculate

Enter your energy usage, solar system size, and location. Our model runs a 25-year cashflow analysis to recommend the right battery size.

Compare

See how leading Australian battery brands stack up on capacity, warranty, chemistry, and indicative pricing.

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Get matched with accredited installers in your area and request quotes — no obligation required.

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Latest articles

Practical guides for Australian homeowners considering solar battery storage.

12 June 2026

Feed-in Tariffs Are Falling: What Should You Do?

Solar feed-in tariffs across Australia have dropped to historic lows. Here's what it means for solar owners, whether a battery makes sense now, and what else you can do.

9 June 2026

Best Home Batteries in Australia (2026)

A practical comparison of the best home battery storage systems available in Australia in 2026, including Tesla Powerwall, GoodWe, Sungrow, Enphase, and BYD.

6 June 2026

Three-Phase vs Single-Phase Battery Systems

What's the difference between single-phase and three-phase home battery systems, which Australian homes need three-phase, and how it affects your choice of battery.