1 MW Bess Specs

Electrical Specifications

Nominal Voltage: 716.8V

Nominal Capacity: 1400Ah

Efficiency: ≥92%(0.5C@25±2°C)

Self Discharge/Month: ≤3.5%/month

Maximum Clusters in Parallel: 5

Total Energy Capacity: 1000KWH

Expected Life: 5-7 Years to 80% capacity

Battery Power Loss Rate (Storage): 3% per month

Discharge Specifications ‍

Maximum Continuous Discharge Current: 140A

Peak Discharge (10 Seconds): 280A

BMS Discharge Current Cutoff: 180A(60s)

Recommended Low Voltage Disconnect: 560V

BMS Discharge Voltage Cutoff: 604.8V

Reconnect Voltage: 672V

Short Circuit Protections: YES

Max Depth of Discharge: DOD 80%

Discharge Efficiency: ≥95%(0.5Ca@25±2°C)

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Temperature Specifications

Discharge Operating Range: 604.8~806.4V

Charging Operating Range: 604.8~806.4V

Storage Temperature Range: -20~45°C (within 1mo) 10~35°C (over 1y)

BMS High Temperature Cutoff: 55°C

BMS Reconnect Temperature: 45°C

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Mechanical Specifications

Dimensions: Single cluster (960x860x2100) ±10mm air cooling

Weight: Single cluster ≤2000kg

Connection Type(s): 5P224S

Enclosure Material: SPCC

Cell Type (Chemistry): LiFePO4

Environmental Control Heat/Cool/Both: YES

Environmental Control Wattage: YES

Environmental Control BTU: YES

System Coupling: 5 battery clusters are connected in parallel on the DC side and then connected to a large inverter.

Coupling Method: DC

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Charge Specifications

Recommended Charge Current: 140A

Maximum Charge Current: 140A

Balancing Voltage: 761.6V

BMS Charge Voltage Cutoff: 806.4V

Recommended Charge Voltage: 0.5C constant current charge to 3.5V of the monomer, then turn to constant voltage 0.05C current charge to protection

Charge Efficiency: ≥95%(0.5Ca@25±2°C)

Max Charge Power: 500KW

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Compliance Specifications

Certifications (Cells/ Enclosure): YES

Shipping Classification: UN 3480, CLASS 9

Shipping Weight: ≈10000kg

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