Alpha ESS
Proven all-in-one storage with strong Australian support.
Alpha ESS is one of the most installed battery brands in Australia, with a Sydney-based support team and a long track record going back to 2012. The SMILE5 is an all-in-one AC-coupled battery with built-in inverter and backup capability — pick from 10.1 kWh or 13.3 kWh of usable capacity. Both qualify for the VIC battery rebate and the Alpha Cloud monitoring app.
- NETCC Approved Seller
- 10,000+ Installs across VIC
- 4.7★ · 300+ Google Reviews
- 10-Year Workmanship Warranty
- 11+ Years in the Industry
- Australian Owned
The case for Alpha.
We don't install everything — just the products we believe in. Here's why Alpha ESS earned a spot in our line-up.
- All-in-one — battery, inverter & backup in one cabinet
- AC-coupled retrofit to any solar system
- Local Sydney support team
- 10.1 or 13.3 kWh sizing options
- Alpha Cloud app monitoring
The Alpha ESS models we install
Each model below is a current, in-stock product we install across Victoria with full warranty support.
Alpha ESS SMILE5 13.3 kWh
Family-home all-in-one AC battery.
- 13.3 kWh usable
- 5 kW continuous
- Backup-capable
- AC-coupled
- Usable capacity
- 13.3 kWh
- Continuous power
- 5 kW
- Coupling
- AC-coupled (all-in-one)
- Chemistry
- LFP
- Backup
- Yes (essential loads)
- Warranty
- 10 years
Alpha ESS SMILE5 10.1 kWh
Compact all-in-one AC battery.
- 10.1 kWh usable
- 5 kW continuous
- Backup-capable
- AC-coupled
- Usable capacity
- 10.1 kWh
- Continuous power
- 5 kW
- Coupling
- AC-coupled (all-in-one)
- Chemistry
- LFP
- Backup
- Yes (essential loads)
- Warranty
- 10 years
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Get a free, tailored quote for a Alpha ESS system properly designed for your home.