Which Home Battery is Right for You?

A home battery can reduce your reliance on the grid, provide backup power during outages and help you make better use of solar or free electricity periods. We install several leading battery systems because no single option is right for every home. Here's how three of our most popular choices compare.

GoodWe ESA

Best value

Value option
Lower upfront cost
Modular, expandable design
Single & three-phase options
No separate backup gateway required
Backup configuration requires more careful system sizing
Established brand with strong Australian presence

Best for: Keeping upfront costs down

Sigenergy SigenStor

Our premium all-rounder

Our pick for the best app and system control
Modular battery — easy to expand later
Single & three-phase options
Excellent backup capability
Optional bi-directional DC EV charging
(V2G capable)
#1 Installer's Choice battery in 2026 (SolarQuotes)

Best for: Technology, flexibility & future expansion

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Tesla Powerwall 3

Premium simplicity

Well-established, proven battery platform
Excellent Tesla app
13.5 kWh usable capacity
Strong whole-home backup capability
Great integration for Tesla owners
Single-phase only
Premium simplicity

Best for: Tesla ecosystem & simplicity

GoodWe vs Sigenergy vs Tesla Powerwall

All three are high-quality home battery systems, but they suit different homes and priorities. The right choice depends on your budget, electrical supply, backup requirements and how much flexibility you may want in future.

Feature	GoodWe ESA	Sigenergy SigenStor	Tesla Powerwall 3
Typical price position	$ – Best value	$$ – Our preferred all-rounder	$$$ – Premium
Battery capacity	8 kWh modules	9 kWh modules	13.5 kWh per Powerwall
Expandable later	Excellent	Excellent	Yes, within supported Tesla configurations
Single phase	✓	✓	✓
Three phase	✓	✓	Not currently with PW3
Whole-home backup	✓	✓	✓
Separate backup gateway required	No	Yes	Yes
Backup operation	More compromises. Loads can remain on the backup side, but must stay within the inverter's operating limits. Alternatively, they can remain grid-connected during normal operation and be manually switched to backup during an outage. This can make a larger inverter desirable.	Seamless automatic backup with the gateway managing the transition between grid and backup operation.	Seamless automatic backup through the Tesla Backup Gateway.
App & monitoring	Good	Excellent – our favourite	Excellent
Integrated solar inverter	✓	✓	✓
DC EV charging option	—	✓ Integrated option	—
Future expansion flexibility	Modular design with battery-level management, making future expansion practical.	Modular design with battery-level management, making future expansion practical.	More dependent on Tesla model generation and system compatibility. Cross-generation support has historically been more limited.
Best suited to	Budget-conscious installations where the backup configuration is suitable	Technology, backup performance, flexibility & future expansion	Tesla ecosystem & simplicity

Which would we choose?

For most homes, Sigenergy is our preferred all-round system because of its excellent app, flexible backup architecture, modular design, single- and three-phase options and strong expansion flexibility. GoodWe ESA is our value option and can save money upfront, but its backup configuration involves some compromises, so we generally recommend stepping up to Sigenergy where the budget allows. Tesla Powerwall 3 remains an excellent premium battery, particularly for customers who value the Tesla ecosystem, although it is currently single-phase and offers less flexibility across different Powerwall generations.