Residential ESS

5~30kWh Great Wall Series Residential ESS

5~30kWh Great Wall Series Residential ESS is a safe, modular storage solution for solar self-use, backup power, and off-grid homes. Featuring LiFePO₄ cells, iBMS protection, and >6,000 cycles, it offers long-lasting, reliable performance. The wall-mounted design supports flexible capacity, smart monitoring, and quick installation—ideal for modern home energy needs.


Details

Applications

Residential Energy Management

Ideal for homes to optimize self-consumption of solar power, reduce reliance on the grid, and lower electricity bills through storing excess daytime energy for nighttime use.

Backup Power Supply

Provides reliable emergency power during outages for critical household devices (e.g., medical equipment, refrigeration, lighting), ensuring uninterrupted operation in regions with unstable grids.

Off-Grid Living

Supports remote or rural homes without grid access by integrating with solar/wind systems, offering autonomous 24/7 energy supply.

Grid Services (Optional)

Enables demand response programs or feed-in tariff optimization in regions where residential storage can participate in grid stability initiatives.

 

Key Highlights

Scalable Modular Design & High Flexibility

  • Configurable Capacity: Range from 12kWh to 30.72kWhvia parallel connection of 1–6 battery units (2P16S each), adapting to diverse household energy needs .
  • Space-Efficient Installation: Wall-mounted design minimizes floor space, suitable for compact urban homes or garages .
  • Grid Compatibility: Supports single-phase/three-phase inverters and dual communication protocols (CAN/RS485) for seamless integration with existing solar setups .

 

Ultra-Reliable Safety & Longevity

  • Robust Safety Features

LiFePO₄ Pouch Cells: inherently stable chemistry with low thermal runaway risk, compliant with IEC safety standards .

Hardware Redundancy: iBMS (intelligent Battery Management System) with self-diagnostic circuits and key loop redundancy to prevent overcharge, short circuits, and thermal issues .

  • Extended Lifespan

6000times @25℃ 0.5C: Exceeds industry standards for residential storage, with a 15+ year system lifespan .

Wide Temperature Range: Operates in -10°C to 35°C (discharge) and 0°C to 55°C (charge), with IP65 protection against dust and water ingress .

 

User-Friendly Operation & Adaptability

  • Plug-and-Play Setup: Simplified installation process for DIY or professional installers, reducing deployment time .
  • Intelligent Energy Management: Compatible with smart home systems for real-time monitoring of energy usage, charge/discharge status, and fault alerts via mobile apps .
  • Cost-Effective Performance: High depth of discharge (90%) maximizes usable energy, while low standby power consumption enhances ROI for homeowners .

 

Product Parameters

Model Great Wall 05 Great Wall 10 Great Wall 20 Great Wall 30
Configuration 2P16S 2P16S:2pcs 2P16S:4pcs 2P16S:6pcs
Size 600*900*220mm 600*1200*220mm 600*1800*220mm 600*2400*220mm
Weight 67kg 109kg 193kg 277kg
Nominal Voltage 51.2V 51.2V 51.2V 51.2V
Voltage Range 40-58.4V 40-58.4V 40-58.4V 40-58.4V
Rated Capacity 100Ah 200Ah 400Ah 600Ah
Rated Energy 5.12kWh 10.24kWh 20.48kWh 30.72kWh
Max.Charge Current 50A
Max.Discharge Current 100A
Depth of Discharge 90%
Communication Protocol CAN/RS485
Cycle Life ≥6000times @25℃ 0.5C
Operating Temp.Range Charge:0~55℃;Discharge:-10~35℃
System Certification IEC/EN 62619, IEC/EN 61000, IEC/EN 62040, UL1973, UL9540A

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