6.9MWh Energy Storage Container System

HighJoule 6.9MWh Energy Storage Container (HJ-G0-6900L) is a 20ft integrated solution with LiFePO4 cells. Delivering 6.9MWh capacity, it enables renewable energy integration, grid stabilization & industrial load management—safe, efficient, and ready for rapid deployment.

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6.9MWh Energy Storage Container System
6.9MWh Energy Storage Container System
6.9MWh Energy Storage Container System

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  • 6.9 MWh High-Capacity Storage

    Lithium Iron Phosphate (LiFePO4) battery with 6.9 MWh rated capacity, ensuring reliable long-term energy supply for large-scale commercial and industrial applications.

  • Rugged Outdoor Design

    IP54 protection rating, resistant to dust and water ingress, and designed to operate in harsh outdoor conditions (-30℃~50℃ and 5%-95% humidity).

  • Modular & Scalable

    Compact 20ft container design with scalable energy storage capacity, ideal for expansion as energy demands grow.

  • Integrated & Efficient Design

    Includes BMS, EMS, and liquid cooling system for enhanced efficiency and long lifespan, reducing installation time and operational costs.

  • High Efficiency

    Utilizes liquid cooling for optimized performance, with less than 3% self-discharge rate per month, ensuring consistent energy delivery with minimal loss.

  • Intelligent Monitoring & Control

    Equipped with LAN, CAN, RS485 communication protocols and Modbus TCP for real-time monitoring and remote management of energy storage performance.

  • Safety & Durability

    Features multi-layer protection with advanced cooling and fire suppression systems to ensure operational safety and extend system lifespan.

  • Flexible Energy Applications

    Ideal for renewable energy integration, peak shaving, and backup power. Compatible with both grid-tied and off-grid systems, enhancing flexibility in diverse energy setups.

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Parameters

Model Number HJ-G0-6900L
Battery Type lithium iron phosphate (LiFePO4)
Rated Capacity 6.9 MWh
Cell Specification LFP 3.2V/688Ah
Soc Estimation Accuracy ≤5%
Self-discharge rate / month ≤3%
IP Protection Rating IP54
Weight (Kg) 40,000
Cooling Method Liquid cooling
Noise level <65 dB (1m from system)
Communication Interface Wired: LAN, CAN, RS485
Communication protocol Modbus Tcp
Dimension 20ft container

Note: Specifications are subject to change without prior notice for product improvement. Data Sheet / Get your free product catalog and the latest pricing!

FAQ

1. What cooling system is used in the 6.9MWh LFP 3.2V/688Ah BESS?

This system uses an advanced liquid cooling technology with closed-loop coolant circulation and intelligent temperature control to maintain uniform and optimal battery temperature across the large-scale battery bank.

2. What are the benefits of liquid cooling for the 6.9MWh energy storage system?

Liquid cooling offers superior thermal management compared to air cooling, enabling higher charge and discharge rates, extending battery lifespan, enhancing safety by preventing overheating, and ensuring stable operation in demanding industrial and commercial applications.

3. What typical applications are suitable for this 6.9MWh liquid-cooled LFP BESS?

Ideal for large-scale industrial peak shaving, renewable energy smoothing and storage, grid frequency regulation, backup power supply, microgrid stabilization, and participation in ancillary grid services.

4. How does the system ensure operational safety with liquid cooling?

The system incorporates real-time coolant leak detection, multi-point temperature monitoring, advanced Battery Management System (BMS) protections, automatic fire suppression, and emergency shutdown protocols to guarantee safe and reliable operation.

5. What maintenance is recommended for the liquid cooling system in the 6.9MWh BESS?

Regular maintenance includes inspecting coolant quality and levels, checking pumps and valves, cleaning heat exchangers, monitoring for leaks, and performing system diagnostics to maintain efficient thermal management and prolong battery life.

6. Can the 6.9MWh system be expanded or integrated with other energy sources?

Yes, the modular design supports scalability and seamless integration with solar, wind, diesel generators, and grid systems, enabling hybrid microgrid solutions and optimized energy management.

Application

The HighJoule 6.9MWh Energy Storage Container (HJ-G0-6900L) – with its 20ft compact container design for rapid deployment, 6.9MWh large capacity, and LiFePO4 battery safety – is ideal for integrating with solar/wind farms to store renewable energy (supported by liquid cooling for stable operation in diverse climates); its low noise (<65dB) and IP54 protection allow it to operate near industrial/commercial areas for peak shaving and load management; it can serve as backup power for critical facilities with ≤5% SOC accuracy to ensure reliable power supply; and its Modbus TCP communication protocol enables seamless integration into urban energy systems, supporting smart city energy management.

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* Fill out this form and our experts will help you find the perfect solar storage solution for your home or business.


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Accurate info ensures faster contact.