Battery storage size calculator

Work out roughly how much battery storage capacity you would need to run your household overnight on stored solar power.

Recommended battery capacity

9 - 11 kWh

This is the approximate usable battery capacity to cover your evening and overnight needs.

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This is an estimate only; an installer will confirm the right battery model for your usage pattern.

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Your calculator inputs and results go to suppliers in your enquiry so they can quote your exact situation. Just add your location, timing, and contact details.

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Your enquiries through our contact forms may be shared with partner providers who can do the work, and we may earn a referral fee. Our rankings and scores come from our published method only and are never influenced by referral fees.

Get quotes from top-rated solar energy equipment suppliers

Ranked by our published rubric from recent Google reviews, weighted by relevance to this service (the same order as the category page).

Pool Heating Solutions WA
5.0(248) 94
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Positive Energy Solutions
4.9(442) 88
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Australis Solar
4.9(157) 87
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Alt-Tech Welshpool
4.7(107) 87
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MJM Solar
5.0(40) 86
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