Energy & Batteries · 8 June 2025

Top Home Battery Pick for Aussie Homes in 2025 | Dirt Report

This 2025 comparison reviews several home battery systems available in Australia, including Tesla, Alpha ESS, Sungrow, BYD, Growatt, Sig Energy, Enphase, Sonnen and SolaX. Pricing is indicative, excludes rebates and can vary by installer and household. The main recommendation depends on budget, daily energy use, inverter compatibility, backup requirements and whether smart features or raw power are most important.

In this article

The short version

Key points

Indicative prices are before rebates and can vary significantly between installers and installations.
The transcript focuses mainly on systems around 10 kWh, while suggesting that some households may benefit from 15 kWh or more.
Tesla Powerwall 3 offers very high power output and integrated backup, but may be less suitable for some three-phase homes.
Sungrow and Alpha ESS are presented as value-focused all-rounders, while Growatt targets buyers seeking more capacity for less money.
Sig Energy is aimed at buyers who prioritise smart features, integration and a modern app experience.

Choosing the right battery size

The comparison concentrates on 10 kWh systems because they may suit households trying to offset evening electricity use after solar generation falls. However, the appropriate size depends on a home’s average daily energy consumption. The video suggests considering at least 15 kWh in some cases, rather than choosing a battery solely by its advertised capacity.

Prices in the comparison exclude rebates and are not guaranteed quotes. Installer pricing, site requirements and system configuration can change the final cost. Usable capacity, inverter power and compatibility with an existing solar installation also need to be checked.

Popular battery systems compared

Tesla Powerwall 3 is listed at around $15,000 or more installed before rebates, with approximately 13.5 usable kWh and more than 11 kW of power output. It includes an inverter, works with solar panels, provides backup capability and has a 10-year warranty. Its main limitation is that, as an AC-coupled system, three-phase homes may require multiple units or additional equipment for the best performance.

Alpha ESS Smile G3 is presented as a more realistically priced option. The 10.1 kWh system, including a 5 kW hybrid inverter, is listed at approximately $6,185 to $6,997 before rebates. Its integrated inverter may limit higher-demand households, while the app is described as less intuitive. Alpha also offers three-phase models, including the Smile T10.

Sungrow’s SBR series is a modular lithium iron phosphate system that scales from about 9.6 kWh to 25.6 kWh. A system around 10 kWh is listed at roughly $8,000 before rebates, while larger installations can reduce the cost per kWh. It requires a Sungrow inverter, and available output depends on the inverter selected. The system is described as having 100% usable energy, a 10-year warranty and multiple safety certifications.

Other options for Australian homes

BYD Battery-Box Premium HVS is described as a modular battery-only system costing around $941 per usable kWh, or approximately $9,400 for a typical 10 kWh installation. It requires a compatible hybrid inverter and an experienced installer. The system is considered flexible and reliable, although its appearance, app and support arrangements may be less appealing to some buyers.

Growatt’s APX series is listed at around $639 per usable kWh, depending on configuration and installer. A 10 kWh setup may cost approximately $6,390 installed before rebates. It uses two 5 kWh modules and is designed to integrate with Growatt inverters. The trade-offs include proprietary inverter compatibility, basic monitoring tools and output that is limited by the inverter. The transcript notes that a larger battery configuration with a higher-capacity inverter can provide substantially more power for less than a Powerwall installation.

Sig Energy’s SigenStor is an all-in-one system with an advertised 10 kW output, smart energy management and a polished app. Pricing is given as approximately $930 to $1,400 per usable kWh. It is positioned as an early-adopter product because its long-term track record and service network are still developing, and its integrated design means greater reliance on one manufacturer and local installer expertise.

Premium and specialist choices

Enphase IQ Batteries use small 3.5 kWh modules and are particularly straightforward for homes already using Enphase microinverters. The system is listed at about $1,300 per usable kWh and includes a 15-year warranty. Its lower power output makes it more suitable for lighter evening use than for running multiple high-demand appliances together.

Sonnen’s EVO battery is described as a premium lithium iron phosphate option with German manufacturing, local support and an approximate installed price of $10,000 to $14,000 for 10 kWh. Its output is around 5 kW, so it is aimed more at low- to mid-use homes seeking reliability than households needing high instantaneous power.

The SolaX SJB2 series is listed at approximately $777 per kWh for a 10 kWh system and can scale to 25.6 kWh. It supports indoor or outdoor installation and includes features such as remote firmware updates. Compatibility is mainly with SolaX inverters, output is constrained by the inverter, and the warranty has a throughput limit. The local support network is also described as less developed than those of longer-established brands.

TechManPat’s conclusion

I would choose Sungrow’s SBR series or Alpha ESS as the best all-rounders for value and scalability in low- to medium-use homes. For a technology-focused household, I would choose Sig Energy. If I wanted more battery capacity for a tighter budget, I would consider Growatt APX. For the highest power output, full backup and a higher budget, I still regard Tesla Powerwall 3 as the leading option. In every case, I would size the system around actual daily usage and confirm compatibility with the home’s solar and electrical setup.

Source note

This knowledge-centre summary is based on the linked TechManPat video and reflects the information available when it was published. Check current pricing, availability and policies before acting.