FOX ESS P3-100-Plus - three-phase hybrid inverter 100 kW.

FOX ESS P3-100-Plus is a three-phase industrial hybrid inverter rated at 100 kW. Four MPPT inputs of two strings each (eight strings total), a high-voltage LiFePO₄ battery in the 180–950 V range, charge and discharge current up to 240 A. Efficiency 98.5%, nominal output current 152 A per phase. Operation from -30 °C, IP65, 5-year warranty.

A hundred kilowatts: a facility's own generating station

At this level the conversation is no longer about saving on bills but about a full energy project with its own payback and, often, sale of surplus to the grid. Typical buyers at this level are large logistics complexes with cold storage, processing plants, industrial-scale greenhouse operations.

With a battery at 180–950 volts and exchange current up to 240 amperes, the station can not only generate but actively manage its own energy balance: storing surplus in production gaps and releasing it during peak hours, reducing the load on the grid supply.

Every percentage point of efficiency at this scale turns into substantial money over a year — the difference between 97% and 98.5% for a hundred-kilowatt station means thousands of kilowatt-hours annually.

Technical specifications

• rated power 100 kW, three phases 380/400 V;

• four MPPT inputs, two strings per input — eight strings total;

• MPP range 180–850 V, maximum input voltage 1000 V;

• LiFePO₄ battery 180–950 V, charge and discharge current up to 240 A;

• BMS communication: three CAN channels;

• efficiency 98.5% peak, 98.1% European weighted;

• output current 152 A nominal, 167.2 A maximum;

• generator support, operation from -30 to +60 °C;

• IP65, intelligent air cooling;

• mass 120 kg, 5-year warranty.

A turnkey connection project

152 amperes nominal and 167.2 maximum is already a specialised grid connection project: cable, switchgear, often a separate transformer substation or distribution point, calculated individually for the site.

We support the whole cycle — from the station's technical calculation to preparing connection documents and coordinating with the network operator, including the terms for selling surplus.

Parallel operation for redundancy

For megawatt-scale sites, units in the Plus series connect in parallel with automatic load distribution. Each module is used at full capacity under normal operation, and if one fails, the rest cover most of the load while repair is under way.

The modular scheme also simplifies expansion — adding another unit as production grows requires no stoppage of the part of the system already running.

Monitoring and reliability

The standard FoxCloud app shows generation from each of the eight strings separately, battery state and current consumption in real time. Modbus TCP and RTU are available for integration with commercial metering systems.

An operating range from -30 °C and a mass of 120 kilograms reflect the unit's purpose: decades of continuous industrial operation without additional room heating.

A hundred kilowatts is the level of a facility's own generating station. Write to us about your site and plans for selling surplus to the grid: we will prepare a full technical configuration calculation with redundancy.