BESS Industrial Off-Grid Solar Cabinets Photovoltaic Utility Scale Battery Storage 100kW 233kWh 125kW 261kWh Energy Storage

Product Description

These two liquid-cooled energy storage cabinets are standardized products designed for industrial and commercial energy storage scenarios, covering different power and capacity requirements. Their core design revolves around high safety, long lifespan, and efficient thermal management. Details are as follows:

1100kW/233kWh Liquid-Cooled Cabinet

This model features a single-cabinet independent design with a rated power of 100kW and a nominal capacity of 233kWh, suitable for small and medium-sized industrial and commercial users. Its core advantage lies in its high integration—highly integrating the battery pack, liquid cooling system, battery management system (BMS), power converter (PCS), and fire protection system, occupying less than 1.5 square meters, facilitating transportation and rapid deployment.

Compared to traditional air cooling, the liquid cooling solution can control the temperature difference between battery cells within 3°C, significantly improving battery consistency, extending cycle life to over 6000 cycles, and supporting a 1C charge/discharge rate. The system comes standard with multi-level electrical protection and an automatic aerosol/heptafluoropropane fire extinguishing device, meeting IP54 protection standards.

2125kW/261kWh Liquid-Cooled Cabinet

This is an upgraded version in terms of power and capacity, with power increased to 125kW and capacity increased to 261kWh. While maintaining the same footprint, energy density is improved through optimized cell assembly structure (such as using 280Ah or 314Ah high-capacity cells), making it suitable for scenarios requiring higher charge/discharge rates or longer backup power times.

Its significant feature lies in the high coupling between the power conversion system (PCS) and the battery system. The 125kW PCS supports seamless switching between grid-connected and off-grid environments. The liquid cooling system in this model further optimizes the thermal management algorithm, automatically adjusting coolant flow and compressor frequency, reducing auxiliary power consumption by approximately 20% and achieving a system efficiency of over 90%.

Common Technological Advantages and Applications

Both products come standard with a cloud monitoring platform, capable of real-time monitoring over 200 data points including voltage, temperature, and insulation resistance, supporting remote firmware upgrades and fault warnings. In terms of applications, they are widely suitable for industrial parks, commercial complexes, data centers, and integrated photovoltaic-storage-charging stations. Through a "valley charging, peak discharging" mode, they charge during periods of lower electricity prices and discharge during peak hours, helping users reduce electricity costs. Simultaneously, they also serve as backup power, automatically switching to off-grid power supply mode within 20 milliseconds during grid fluctuations or power outages, ensuring continuous operation of critical loads. Flexible capacity expansion is achieved through modular design supporting multi-unit parallel operation.

Product Description
Liquid-Cooled Cabinet Image 1
Liquid-Cooled Cabinet Image 2
Liquid-Cooled Cabinet Image 3
100kW/233kWh & 125kW/261kWh liquid-cooled energy storage cabinets Detailed images
Model MTBK-100kW/233kWh MTBK-125kW/261kWh
Battery Parameters
Battery rated capacity 232kWh 261kWh
Battery rated voltage 832V
Battery voltage range 728V~936V
Battery type LFP
Battery cell capacity 1P*52S*5S
Cell Capacity 280Ah 314Ah
Max.charging/discharging power 0.5P
Max.charge/discharge current 184A 157A
Photovoltaic Parameters
Rated power 100kW
PV Voltage Range 250~550V (MPPT) 250~500V (MPPT)
PV Max. Current 160A*2 -
MPPT quantity 2 -
AC Parameters
Rated AC power 100kW 125kW
Rated AC current 144A 180A
Rated AC voltage 400V, 3W+N+PE
Rated AC frequency 50/60Hz
THDi <3% (Rated power)
Power Factor -1leading to+1 lagging
THDv <3% (linear load)
General Parameters
Protection level IP55
Protection level I
Isolation mode Isolation transformer
Shutdown self-discharge <100W (Without transformer) <0.1% Rated power (Without transformer)
Display LCD
Relative humidity 0 ~ 95% (No condensation)
Noise <78dB
Ambient temperature -25°C to +60°C (Derating above 45°C)
Cooling mode Intelligent liquid-cooled
Altitude 3000m (>2000m derating)
BMS Communication CAN
EMS Communication Ethernet / 485
Dimension (W * D * H) 1600*1350*2300mm
Weight (approx.) 3180kg 3330kg
Applications Structure
Applications Structure Overview
100kW/233kWh Wiring Diagram
100kW/233kWh Liquid-Cooled Energy Storage Cabinet Electrical Wiring Diagram
125kW/261kWh Wiring Diagram
125kW/261kWh Liquid-Cooled Energy Storage Cabinet Electrical Wiring Diagram
Factory Showcase

Founded in 2002, our enterprise is a professional enterprise specializing in the photovoltaic (PV) field. We have consistently focused on the clean energy sector, providing high-quality PV products and services to support the global energy transition.

In terms of product portfolio, we have formed a diversified core product matrix, mainly dealing in the entire PV industry chain, including solar modules, solar inverters, lithium batteries, solar systems, containerized energy storage, and outdoor cabinets. Our products have not only passed multiple authoritative certifications such as ISO 9001:2015 quality management system and ISO 14001:2015 environmental management system, but also possess excellent adaptability to extreme environments, meeting the application needs of various scenarios.

Regarding market layout, we expand our business with a global perspective, with a trade export network covering more than 100 countries and regions. We focus on key market segments such as North America, Central America, Europe, and Africa. Leveraging our sound marketing network and superior product strength, we have established deep partnerships with many well-known brands in the PV industry. The company reaches global customers through multiple channels, including our online store, independent website, and participation in overseas professional exhibitions. We receive a substantial number of monthly inquiries and provide one-stop photovoltaic system integration solutions to global clients, earning widespread market recognition.

Upholding the vision of "making clean energy accessible to the world and contributing to alleviating global energy pressures," we consistently integrate innovation and responsibility into our core development. With a customer-centric approach and a pragmatic and dedicated attitude, we continue to deepen our expertise in the photovoltaic field. In the future, we will continue to focus on upgrading clean energy technologies, contributing to the optimization of the global energy structure and helping to achieve sustainable global energy goals through high-quality products and services.

Factory Facility
Project Display
Project Site Installation
Packing & Transportation
Packaging and Transport details
Energy Storage Solutions
Energy Storage Solution Flow

Our C&I PCS and BESS solutions help you achieve peak shaving, PV energy self-consumption, microgrid backup power supply, demand charge management, and solar-storage integration for your business.

Product Details Showcase
Cabinet Detail View 1
Cabinet Detail View 2
Cabinet Detail View 3
Frequently Asked Questions
? What are the main differences between these two liquid-cooled energy storage cabinets?
The main difference lies in the rated power and battery capacity. The 100kW/233kWh model is suitable for scenarios with slightly lower power requirements but longer discharge times; the 125kW/261kWh model has higher power and is suitable for applications with large load fluctuations and requiring rapid response. Both utilize high-efficiency liquid-cooled thermal management technology.
? What are the advantages of liquid cooling technology compared to air cooling?
Liquid cooling has higher heat dissipation efficiency, smaller cell temperature differences, and can extend battery cycle life; it also has better system sealing, a higher protection level, and can adapt to harsh environments such as high temperatures and high dust levels, while operating with lower noise, improving overall safety and stability.
? What application scenarios are these two energy storage cabinets suitable for?
Widely used in industrial and commercial parks for peak-valley arbitrage, demand management, backup power, and integrated photovoltaic-storage-charging stations. Its modular design facilitates flexible capacity expansion and can meet the peak-shaving and emergency power supply needs of small and medium-sized factories, commercial complexes, data centers, and other scenarios.
? What safety features are included in the product design?
A multi-level protection system is employed, including battery-level cell monitoring, pack-level fuse protection, and system-level aerosol or heptafluoropropane automatic fire suppression devices. Combined with liquid-cooled precise temperature control and a cloud-based early warning platform, this effectively prevents thermal runaway and ensures the safety of equipment and personnel.
? Can the system operate on the grid, and how does it integrate with photovoltaic and other new energy sources?
It supports grid-connected and off-grid modes and can be flexibly coupled with photovoltaic systems and charging piles via EMS. In grid-connected mode, it achieves self-consumption of photovoltaic power and storage of surplus electricity; in off-grid mode, it can serve as an emergency backup power source, improving the power supply continuity of critical loads, and supports multiple communication protocols for unified dispatch.
? Does it support remote monitoring and energy management?
Yes. It comes standard with an Energy Management System (EMS), which can access the cloud platform via 4G/Ethernet to achieve real-time data monitoring, remote parameter setting, fault alarms, and strategy optimization. It supports intelligent modes such as automatic charging and discharging at peak and off-peak electricity prices, demand control, and photovoltaic-storage synergy.

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