The Alpha ESS 20.2 kWh Battery, paired with the Alpha ESS SMILE-S5 G3 5 kW Hybrid Inverter (supporting up to 10 kW of solar PV input), delivers a powerful and scalable energy storage solution designed for larger single-phase homes and households with high evening energy consumption.
Built to maximise solar self-consumption and enhance energy independence, this advanced system stores excess solar energy generated during the day for use during the evening, overnight, or during peak electricity tariff periods. By reducing dependence on the grid, homeowners can significantly lower energy costs while benefiting from reliable backup power during blackouts.
Ideal for both new solar installations and existing system upgrades, this package enables homeowners to:
- Store excess daytime solar energy for evening and peak-rate use
- Reduce electricity bills through increased solar self-consumption
- Keep essential household circuits operating during power outages
- Access Australian federal and state battery rebate programs for additional savings
Featuring 20.2 kWh of usable battery storage and a 5 kW hybrid inverter, the system provides:
- Efficient charging from solar arrays up to 10 kW
- Stable single-phase power output for residential applications
- Intelligent automatic switching between solar, battery, and grid power
Under typical operating conditions, this system can support a wide range of household loads, including refrigeration, lighting, internet and communications equipment, air conditioning, EV charging, and everyday appliances for approximately 14 to 24 hours, depending on energy usage patterns.
Backed by a 10-year product warranty, advanced smart monitoring through Alpha Cloud, and professional CEC-accredited installation, the Alpha ESS 20.2 kWh system offers a reliable, high-performance pathway to greater energy independence and long-term energy savings.
About the Brand – Alpha ESS
Founded in 2012, Alpha ESS is a leading global battery storage manufacturer with systems deployed in 90+ countries.
Why Australians choose Alpha ESS:
- Strong local presence and Australian support
- CEC-approved systems meeting Australian standards
- High safety performance with LFP chemistry
- Smart monitoring and seamless integration
- Eligible for federal and state battery rebates
Alpha ESS systems are trusted for reliability, modern design and affordability.
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