The Fox ESS 32kWh storage capacity is achieved through a high-voltage, modular battery system, most commonly from the Energy Cube ECS Series or the Mira HL Series.

A 32kWh configuration requires stacking multiple battery modules together.

Common 32kWh Configuration (e.g., ECS4100-H8)

While individual module capacities can vary, a 32kWh system typically uses eight of Fox ESS’s standard ~4kWh modules stacked in series.

• Configuration: 1 Master Module (BMS) + 7 Slave Modules

• Nominal Capacity: ~32.25 kWh

• Usable Capacity: ~29.02 kWh (assuming 90% Depth of Discharge)

• Battery Type: LiFePO4 (Lithium Iron Phosphate)

• Nominal Voltage: ~460.8 V

• Protection Rating: IP65 (Suitable for indoor or outdoor installation)

• Scalability: You can expand up to 7 modules in a single stack; for 32kWh, this means a complete, or nearly complete, single stack.

Key Features

• Modular Design: Easy installation with “plug and play” stacking, minimizing external wiring.

• High Voltage: Offers greater efficiency, often paired with Fox ESS 3-phase hybrid inverters.

• Space-Saving: Vertical stacking minimizes the floor footprint for high energy storage.

• Safety: LiFePO4 chemistry is widely regarded as one of the safest for residential energy storage.