The Fox ESS 18.64 kWh Battery, paired with the Fox ESS 5 kW Three-Phase Hybrid Inverter, delivers a high-capacity, efficient, and scalable energy storage solution for medium to large homes and properties with three-phase electrical systems. Ideal for households with higher energy demands, EV charging, rural properties, and larger solar PV installations, this system maximises solar self-consumption while providing dependable backup power and greater energy independence.
By storing excess solar energy generated during the day, the system allows you to power your home during the evening, overnight, or during peak electricity tariff periods, reducing reliance on the grid and lowering electricity costs. In the event of a power outage, the hybrid inverter automatically supplies backup power to priority circuits, helping to keep essential appliances and equipment running without interruption.
Key Benefits
- Reduce electricity bills by making the most of your stored solar energy.
- Keep essential household circuits powered during unexpected grid outages.
- Support higher evening energy consumption, including EV charging and larger electrical loads.
- Expand battery capacity in the future with the modular Fox ESS battery system.
System Features
With 18.64 kWh of usable battery storage and a 5 kW three-phase hybrid inverter, this system provides:
- Smooth and balanced three-phase power delivery for reliable performance across all phases.
- High-efficiency DC-coupled charging for maximum energy utilisation.
- Intelligent energy management with seamless switching between solar, battery, and grid power.
- Reliable backup power for priority circuits during power outages.
- Quiet operation and a scalable, future-ready battery design that can grow with your changing energy requirements.
The Fox ESS 18.64 kWh Battery with the 5 kW Three-Phase Hybrid Inverter is an excellent choice for homeowners looking to reduce electricity costs, improve energy independence, and benefit from reliable backup power in a flexible, future-ready solar energy storage system.
About the Brand – Fox ESS
Fox ESS is a global clean-energy technology manufacturer known for high-efficiency inverters and long-life batteries, delivering smart, reliable, and future-ready renewable energy solutions.
Why Australians Choose Fox ESS:
- Clean Energy Council (CEC) approved
- Proven long-term performance and reliability
- Safe and durable LFP battery technology
- Smart app monitoring and remote system control
- Local support + growing installer network





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