Xiamen D.T. Multi Tech Co., Ltd. is one of the most reliable manufacturers and suppliers of ess container box in China. With abundant experience, we warmly welcome you to wholesale cheap ess container box from our factory. If you have any enquiry about cooperation, please feel free to email us.
for C&I, Microgrid and Backup Power Projects
This ESS container box is a fully integrated, liquid-cooled energy storage system designed for commercial & industrial (C&I) applications, microgrid projects, and on/off-grid hybrid power systems.
With a rated output power of 500kW, high-capacity LFP battery packs, fast on/off-grid switching, and advanced safety protection, it delivers reliable, efficient, and scalable energy storage for demanding project environments.
Engineered as an all-in-one ESS container, the system integrates battery, PCS, EMS, thermal management, and fire protection in a compact enclosure, enabling fast deployment and reduced installation costs.
Typical Applications
This liquid-cooled ESS container box is ideal for:
- Commercial & Industrial energy storage (peak shaving and load shifting)
- Microgrid systems with PV and diesel generators
- Backup power for factories, logistics centers, and critical facilities
- Off-grid or weak-grid power supply projects
- Hybrid on/off-grid energy storage solutions
Its flexible architecture allows seamless integration with grid power, photovoltaic systems, and diesel generators, making it suitable for both permanent and temporary energy storage installations.
Products Description
| Ba ery Side | |
| Cell Type | LFP / 314 Ah |
| Pack Configuration | 52.2 kWh / 1P52S |
| System Configuration | 1044 kWh / 4P260S |
| Rated DC Voltage | 832 V |
| DC Voltage Range | 728 ~ 936 V |
| Max. Charge/Discharge Rate | 0.5 P |
| Max. Depth of Discharge | 100% (25 ± 2 °C) |
| Grid Side | |
| Rated Output Power | 500 kW |
| Max. Apparent Power | 550 kVA |
| Rated AC Voltage | 400 V |
| AC Voltage Range | ±15% |
| Grid Type | 3W+N+PE |
| Rated Frequency | 50 Hz / 60 Hz |
| On/off-grid Switching Time | <20 ms |
| Power Factor | 0.99/-1 ~ +1 |
| THDi | ≤3% |
| DC Ratio | <0.5% lpmn |
| Backup Side | |
| Max. PV Inverter Input Current | 800 A |
| Max. Diesel Generator Input Current | 800 A |
| Max. Backup Load Port Current | 800 A |
| Recommended Max. Backup Load Power* | 350 kW (70% of Rated Output Power) |
| General | |
| Cycle Life | ≥ 8,000 cycles |
| Communication | Modbus TCP/IP |
| Fire Suppression System | Aerosol system (pack level and container level), water spray system |
| Ingress Rating | IP54 |
| Cooling | Liquid cooling+Forced air cooling |
| Operating Temperature | -25°C -55°C (Derating after 45°C) |
| Anticorrosion Rating | C4 (C5 optional) |
| Humidity | 5~95% RH (non-condensing) |
| Noise | ≤ 80 dB |
| Altitude | 3000m (Derating above 2000 m) |
| Dimensions (W*D*H) | 2991*2438*2591 mm |
| Weight | 14 t |
| Certification | UN38.3, IEC62477-1, CE/EMC, IEC62619, IEC63056, UL9540A, EN50549 |
Seamless On/Off-grid Operation
Seamless on/off-grid operation is a core capability of this system and a key reason it is widely selected for critical energy applications. The ESS container box is designed to automatically manage transitions between grid-connected and off-grid modes, with a switching time of less than 20 milliseconds.
This ensures continuous and stable power supply even during grid outages, voltage fluctuations, or planned maintenance. By coordinating the PCS, battery system, and EMS in real time, the system maintains power quality and protects sensitive loads without requiring external switching equipment. This seamless on/off-grid performance makes the solution especially suitable for microgrid projects, backup power scenarios, and commercial or industrial sites where power continuity and operational reliability are essential.
FAQ
Q: What is the rated power and energy capacity of this ESS container box?
A: The system provides a rated output power of 500 kW with a total energy capacity of 1044 kWh, making it suitable for commercial & industrial energy storage, microgrid, and backup power projects.
Q: Is diesel generator integration supported?
A: Yes. The ESS container box supports diesel generator input up to 800 A, making it ideal for hybrid microgrid and backup power applications where generators are required.
Q: What safety protections are included in the system?
A: The ESS container box features a multi-level safety design, including:
LFP battery chemistry
Aerosol fire suppression at pack and container level
Water spray fire protection system
Electrical, thermal, and system-level protections
This design meets the safety requirements of C&I and microgrid projects.
Q: How loud is the ESS container box during operation?
A: The system noise level is ≤ 80 dB, making it suitable for industrial and commercial environments with standard noise requirements.
Q: What are the dimensions and weight of the ESS container box?
A: Dimensions (W × D × H): 2991 × 2438 × 2591 mm
Weight: 14 tons
These dimensions allow for standard container-based transportation and on-site deployment.
Hot Tags: ess container box, ess container box manufacturers, suppliers, factory