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V-TAC PRO BESS is an industrial energy storage system (Battery Energy Storage System), designed to guarantee energy independence, optimize costs and increase the reliability of the electricity supply in companies.
V-TAC PRO BESS – Modular energy storage system 250 kW / 1 MWh
🔋 Main features:
System power: 250 kW (scalable in multiples of 250 kW)
Energy capacity: 1 MWh
Battery configuration: 14 modules (5P14S)
Nominal voltage: 716.8 V
Operating voltage range: 627.2 V – 795.2 V
Battery type: LiFePO4 (LFP), 280 Ah EVE cells
Charge/discharge cycles: ≥6000 (at 80% DoD and 25°C)
Temperature range:
Charging: from 0°C to 55°C
Discharge: -10°C to 55°C
Relative humidity: 5–85% RH
Maximum altitude: up to 2000 m
Control cabinet dimensions: 800 × 600 × 2260 mm
Cabinet nominal voltage: 1000 V DC
Maximum cabinet current: up to 630 A
⚙️ System composition
1. 20-foot container (20 GP):
External dimensions: 6058 × 2438 × 2591 mm
Internal dimensions: 5898 × 2338 × 2318 mm
Climate control:
Cooling capacity: 25 kW
Heating: 9 kW
Protection rating: IPX5
2. KEHUA PCS Bidirectional Inverter:
Functions: charging/discharging, DC/AC conversion
Fast switching between on-grid/off-grid modes (<20 ms)
3. Energy Management System (EMS):
Real-time consumption monitoring and optimization
Adaptation to market rates and weather conditions
4. Battery Management System (BMS):
Cell status monitoring
Safety and operational reliability
5. Fire protection system:
Smoke and gas detectors
Early detection of overheating and leaks
6. Transfer switch (BTS):
Power: up to 500 kVA
Current: up to 722 A
Switching time: <200 ms
✅ Advantages of the V-TAC PRO BESS
✔ Energy independence – uninterrupted supply during grid failures ✔ Cost savings – energy use during off-peak hours and sale of surplus energy ✔ Scalability – flexible adaptation to customer needs ✔ Integration with renewable energies – compatible with solar and wind systems ✔ Security – multi-level protection (PPO, cybersecurity) ✔ Long lifespan – up to 10 years of operation
