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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