Best battery storage installers in Sydney
Sydney's high rooftop solar uptake means strong competition on price — and batteries now pay back faster under time-of-use tariffs.
Typical install
$7,800+
bill saving / yr
$860
Accreditation
CEC
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Local guide
How home batteries work in Sydney
A home battery in Sydney typically starts around $7,800 installed for a mid-sized unit with an inverter and backup gateway. Capacity is chosen around your evening usage rather than the size of your solar array.
The value comes from what you avoid importing at peak rates. If you are on a time-of-use or EV tariff, the battery can charge overnight and cover the evening, whether or not you have solar. Without a smart tariff, payback is much slower.
Ask how the battery behaves in a power cut. Only some systems provide whole-home backup, and the ones that do need a gateway and a dedicated circuits list agreed at design stage.
What a batteries quote should cover
- Usable capacity and round-trip efficiency stated
- Tariff automation and app access included
- Backup behaviour and protected circuits agreed
- Warranty terms on throughput, not just years
From survey to switch-on
- 1Usage and tariff review
- 2Capacity and backup design
- 3Electrical inspection
- 4Install, configure and test
Only CEC accredited installers are shown in this directory.
Local incentives for Sydney homeowners
Federal STC rebate
Small-scale Technology Certificates are deducted from your quote upfront, typically cutting 25–35% off a solar system.
State battery and solar rebates
Victoria, NSW and SA run additional rebate and interest-free loan schemes for solar and battery storage.
Feed-in tariffs
Retailers pay 3c–12c per kWh exported, and some offer higher rates when you have a battery.
Battery Storage in Sydney: common questions
Is a battery worth it without solar?
It can be, if you are on a cheap overnight rate and an expensive peak rate. The saving is the tariff difference multiplied by the energy you shift.
How long do batteries last?
Most units are warranted for ten years or a set number of charge cycles, whichever comes first, and typically retain around 70% of capacity at that point.
Can I add a battery later?
Yes, provided the original inverter is battery-ready. If not, a hybrid inverter or AC-coupled battery is the usual route.
How much does solar cost in Australia?
A 6.6kW system typically costs $5,000–$8,000 after the STC rebate, and saves $1,000–$1,800 a year depending on self-consumption.
Is a battery worth it in Australia?
With state rebates and rising evening tariffs, a 10kWh battery now typically pays back in 6–9 years in Victoria and South Australia.
What does CEC accredited mean?
Clean Energy Council accreditation is required for the federal rebate and confirms the installer has completed the required design and safety training.
Can I add a heat pump hot water system?
Yes. Heat pump hot water is usually the cheapest way to cut a gas bill, and it qualifies for STC credits too.