ALL-IN-ONE ESS CONTAINER > LIQUID-COOLED ESS

Liquid-Cooled Containerized BESS for Utility-Scale Projects

CubePal ESS containers integrate LiFePO4 battery storage, liquid cooling, PCS and string-level management in 10-ft and 20-ft container platforms, supporting renewable integration, microgrids, peak shaving and large-scale C&I energy storage.

2 Models

Available

1,044–2,170.3 kWh

Capacity

500–1,125 kW

Rated Power

10ft / 20ft

Container Options

8,000+

Cycle Life

IP54 / IP55

Outdoor Protection

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[ SYSTEM ARCHITECTURE ]

Containerized ESS Connection Diagram

CubePal liquid-cooled ESS containers connect battery storage, PCS, EMS, PV plants, generators, grid and loads in one containerized BESS system for utility-scale storage, microgrids, peak shaving and backup power.

  • Rows of white battery energy storage containers deployed at a large-scale solar power farm with transmission towers in the background.
  • Aerial view of a commercial building rooftop installed with a large photovoltaic solar panel array.
  • Aerial view of rooftop solar panels installed on the CK Plaza commercial building.
  • 3D digital illustration of an industrial microgrid integrated with rooftop solar, battery containers, EV charging stations, and a digital monitoring dashboard.
  • Aerial view of a large-scale energy storage site with white battery containers, solar farm panels, wind turbines, and a power substation.
  • Modern residential house with rooftop solar panels and wall-mounted battery energy storage system units.
  • Rows of white battery energy storage containers deployed at a large-scale solar power farm with transmission towers in the background.

    Utility Storage

  • Aerial view of a commercial building rooftop installed with a large photovoltaic solar panel array.

    Solar + Storage

  • Aerial view of rooftop solar panels installed on the CK Plaza commercial building.

    Large C&I Sites

  • 3D digital illustration of an industrial microgrid integrated with rooftop solar, battery containers, EV charging stations, and a digital monitoring dashboard.

    Microgrids

  • Aerial view of a large-scale energy storage site with white battery containers, solar farm panels, wind turbines, and a power substation.

    Peak Shaving

  • Modern residential house with rooftop solar panels and wall-mounted battery energy storage system units.

    Backup Power

[ TECHNICAL PRINCIPLES ]

Why Choose a Liquid-Cooled ESS Container?

3D transparent diagram of a liquid-cooled battery container showing internal racks and blue coolant circulation paths.

Stable Thermal Control for Containerized BESS Projects

CubePal ESS containers combine liquid cooling, forced-air auxiliary cooling, string-level battery management, PCS, EMS and fire protection in a factory-integrated containerized BESS platform for utility-scale storage, microgrids and large C&I applications.

[ DIGITAL ENERGY MANAGEMENT ]

Smart 3S Control for Containerized BESS

The BMS, EMS and PCS work together to monitor battery cells, manage string-level safety, coordinate power conversion and optimize PV, grid and generator dispatch in one liquid-cooled ESS container for utility-scale storage, microgrids and large C&I projects.

  • ESS Cloud Running Monitor dashboard interface displaying real-time power performance, system efficiency, operational earnings, and alarm analytics.
  • System architecture diagram illustrating communication and power flow between Battery Rack, BMS, PCS, EMS, and Utility Grid.
  • Smartphone screens displaying a mobile energy management app with real-time status monitoring, plant metrics, auxiliary system diagnostics, and operational power curves.

[ PRODUCT COMPOSITION ]

Core Components of Liquid-Cooled ESS Containers

CubePal ESS containers combine LiFePO4 battery packs, high-voltage control, HVAC and liquid cooling in one containerized energy storage system for utility-scale, microgrid and large C&I projects.

Battery Pack

HV Box

Auxiliary Air Cooling / HVAC

Liquid Cooling Chiller

    Modular lithium-ion battery packs lined up with visible high-voltage orange connectors and safety warning labels.

    High-Density LiFePO4 Battery Pack

    Built with 314 Ah LiFePO4 cells, the modular battery pack provides high energy density, long cycle life and stable operation for containerized BESS systems. 1P52S and 1P48S configurations support flexible system design, while IP65 protection and CAN communication improve integration reliability.

    101 kWh

    Capacity

    101 kWh

    Capacity

    View Details →
    Two Sunpal high-voltage control units with safety switches and communication interfaces placed on a digital circuit board background.

    High-Voltage Control Box

    The high-voltage box integrates DC power distribution, voltage monitoring, current detection and protection functions. It helps ensure safe energy transmission between battery strings, PCS and EMS in utility-scale liquid-cooled ESS container projects.

    101 kWh

    Capacity

    101 kWh

    Capacity

    View Details →
    Industrial HVAC unit featuring four prominent cooling fans, designed for battery energy storage system climate control.

    Container Auxiliary Cooling System

    The auxiliary air cooling and HVAC system supports internal container temperature control for electrical compartments, PCS areas and control units. It works with the liquid cooling loop to maintain a stable operating environment for outdoor ESS container deployment.

    101 kWh

    Capacity

    101 kWh

    Capacity

    View Details →
    Vertical and horizontal modular liquid cooling chiller units for battery energy storage systems on a tech background.

    Liquid Cooling System

    The liquid cooling system circulates coolant through battery modules to remove heat efficiently and maintain temperature consistency during high-power charge and discharge. It supports reliable operation across wide ambient conditions for large-scale battery energy storage systems.

    101 kWh

    Capacity

    101 kWh

    Capacity

    View Details →

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[ SAFETY ARCHITECTURE ]

Five-Level Safety Protection for Liquid-Cooled ESS Containers

CubePal liquid-cooled ESS containers use a multi-layer safety architecture designed for containerized BESS, utility-scale storage and large C&I energy projects. From pack-level BMS monitoring to container-level fire suppression, smoke-temperature detection and remote alarms, each protection layer helps reduce battery risk and support stable long-term operation.

  • Pack-level battery management system module with wiring harness and multi-pin connectors for real-time monitoring.

    Pack-Level BMS Protection

    The BMS continuously monitors cell voltage, current and temperature while managing battery balancing and fault protection. This helps prevent overcharge, over-discharge, overheating and abnormal operation across battery strings.

  • NHFIRE aerosol extinguishing generator unit mounted inside a battery cabinet enclosure for thermal runaway protection.

    Pack-Level Aerosol Fire Suppression

    Each battery pack is equipped with an independent aerosol fire suppression unit, enabling fast localized response to potential thermal events before they spread to adjacent modules.

  • Container-level aerosol fire suppression devices mounted vertically on an internal white cabinet wall with connected wiring.

    Cabinet-Level Aerosol Protection

    A dedicated cabinet-level aerosol system provides secondary fire mitigation for the full ESS container, improving safety for utility-scale and outdoor energy storage deployments.

  • External Storz water connection coupling with a protective cap and chain mounted on an energy storage container wall.

    Water-Based Fire Protection

    The water-based fire protection layer provides additional emergency heat control and fire mitigation, supporting safer operation for project developers, EPCs and energy storage system operators.

  • Ceiling-mounted smoke and heat detector sensors installed alongside insulated piping inside a BESS cabinet.

    Smoke & Temperature Detection

    High-sensitivity smoke and temperature sensors monitor internal container conditions in real time. Early warning signals are sent to the BMS and EMS, enabling automatic protection, alarm reporting and remote O&M.

[ STRATEGIC COMPONENT SUPPLY ]

Reliable Components for Utility-Scale ESS Container Projects

From LiFePO4 battery cells and PCS to protection, communication, HVAC and liquid cooling modules, every key component is selected to support safe and reliable containerized BESS operation for utility-scale storage, microgrids and large C&I energy projects.

Hexagonal grid displaying partner logos including Sunpal, ABB, Schneider Electric, Envicool, and HTHIUM, alongside photos of electrical components.

[ KNOWLEDGE CENTER ]

Liquid-Cooled ESS Container FAQs

Key questions for EPCs, project developers, distributors and commercial buyers evaluating CubePal containerized BESS for utility-scale, microgrid and large C&I energy storage projects.

What is a Liquid-Cooled ESS Container?

A Liquid-Cooled ESS Container is a containerized battery energy storage system that integrates LFP battery modules, PCS, BMS, EMS, liquid cooling, auxiliary HVAC and fire protection inside a standard 10-ft or 20-ft container. It is designed for utility-scale storage, solar-plus-storage plants, microgrids and large C&I energy projects.

Why choose liquid cooling for containerized BESS?

Liquid cooling uses circulating coolant to remove heat from battery modules more efficiently than traditional air cooling. It helps reduce cell temperature differences, improve thermal stability and support long cycle life during high-power charge and discharge operation.

What battery technology does the CubePal ESS Container use?

CubePal liquid-cooled ESS containers use LFP battery technology with 314 Ah cells. LFP chemistry is widely used in commercial and utility-scale BESS because of its thermal stability, long service life and strong safety performance.

What capacities and power ratings are available?

The CubePal series includes a 10-ft 1,044 kWh / 500 kW model and a 20-ft 2,170.3 kWh / 1,125 kW model. These configurations support different project sizes, from large C&I energy management to utility-scale battery storage.

Can the ESS Container connect with solar PV and diesel generators?

Yes. The CubePal ESS Container supports PV inverter and diesel generator interfaces, allowing flexible integration with solar power plants, hybrid microgrids, backup power systems and renewable energy storage projects.

Is the Liquid-Cooled ESS Container suitable for outdoor installation?

Yes. CubePal ESS containers are designed for outdoor deployment with IP54/IP55 protection, integrated thermal management and factory-tested container construction. Final configuration should be matched to the local climate, grid code and site requirements.

What safety protection is included in the ESS Container?

The system combines LFP battery chemistry, string-level battery management, real-time BMS monitoring, pack-level aerosol suppression, container-level fire protection, smoke and temperature detection, and emergency protection strategies for safer operation.

How can I get ESS container pricing or a custom quote?

To receive liquid-cooled ESS container pricing, share your required capacity, power rating, grid voltage, PV or generator interface, backup duration and site conditions. SUNPAL ESS can provide a custom containerized BESS configuration for EPCs, project developers, distributors and large commercial buyers.

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Need a Liquid-Cooled ESS Container for Your Project?

Request pricing, lead time and technical support for a custom CubePal containerized BESS solution from SUNPAL ESS.

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