The EcoBridge 40.4 kWh Battery System, paired with the Alpha ESS SMILE-S5 G3 5 kW Hybrid Inverter (supporting up to 10 kW of solar PV input), delivers an exceptionally high-capacity energy storage solution designed for large homes, energy-intensive properties, farms, and customers seeking enhanced energy independence or partial off-grid capability.
Engineered to maximise solar self-consumption, this advanced EcoBridge energy solution captures and stores excess solar energy generated during the day for use at night, during peak electricity pricing periods, or when grid power is unavailable. By significantly reducing reliance on the electricity grid, homeowners and businesses can lower energy costs while ensuring reliable backup power during outages.
Whether you’re upgrading an existing solar system or installing a new one, this package enables you to:
- Maximise solar energy usage both day and night
- Reduce electricity bills through increased solar self-consumption
- Maintain critical household and business loads during blackouts
- Take advantage of available Australian federal and state battery rebate programs
Featuring 40.4 kWh of usable battery storage and a 5 kW hybrid inverter, this system provides:
- Efficient charging from solar arrays up to 10 kW
- Stable single-phase power output for residential and light commercial applications
- Intelligent automatic switching between solar, battery, and grid power
Under typical operating conditions, this system can support substantial energy loads — including EV charging, HVAC systems, water pumps, refrigeration, lighting, and continuously operating appliances — for approximately 30 to 48 hours, depending on energy consumption patterns.
Backed by a 10-year product warranty, advanced Alpha Cloud smart monitoring, and professional CEC-accredited installation through EcoBridge, this premium energy storage solution delivers exceptional reliability, maximum energy independence, and outstanding long-term 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:
- Local Australian service & support capability
- CEC-approved and compliant with Australian standards
- Industry-leading safety using LFP technology
- Modern design + intelligent monitoring features
- Eligible for national and state rebate programs
Alpha ESS systems are trusted for reliability, modern design and affordability.

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