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CESS-125K232 | 125KW / 232.9kWh AC Coupling Container Energy Storage System (Liquid-Cooled)
High-Capacity, Liquid-Cooled, AC-Coupled Energy Storage Solution
GSL Energy proudly introduces the CESS-125K232, an industrial-grade AC-coupled containerized energy storage system with a total capacity of 232.9 kWh and continuous output power of 125 kW. This liquid-cooled lithium battery system is tailored for large-scale commercial and industrial applications, providing outstanding safety, reliability, and thermal performance under various environmental and load conditions.
CESS-125K232 AC Coupling Container Energy Storage System (CESS)
liquid cooling Industrial & Commercial energy storage systems
GSL Energy’s CESS-125K232 is a high-performance, liquid-cooled, AC-coupled container energy storage system designed for industrial and commercial applications. Equipped with advanced LFP280Ah cells and a robust 832V battery system, it delivers 125KW output power and 232.9kWh capacity. The system supports up to 10 units in parallel, offering easy scalability for projects over 2MWh. Fully certified to IEC, UN, and GB/T standards, it ensures safe and efficient energy management for peak shaving, backup power, and microgrid applications.
Related Parameters
| Battery Side | Battery Type Cells series & parallel Battery Rated Voltage Voltage Range Battery Rated Energy Cooling Method |
LFP280Ah 260S1P(5*52S1P) 832V 650~950V 232.9kWh Liquid Cooling |
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| AC Side | Rated Output Power Output Power Current Rated Grid Voltage AC Access method Grid Frequency Range THDi Power Factor |
125kW 180A AC480V 3P 3W+PE or 3P 3W+N+PE 50Hz/60Hz ≤3%( Full load) -1leading to+1 lagging |
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| System Parameter | Maximum System Efficiency Configuration Charge/Discharge Rate Cooling Method Operating Temperature Relative Humidity Altitude Isolation mode IP Level Cycle Numbers Communication Interface Display Noise |
89% MPPT(Optional）、STS（Optional）、PCS ≤0.5P (140A) Liquid Cooling -20 ~ +55 ℃ (derating at temperatures above 45 ℃) 0%-95% (no condensation) 3000m (>3000m reduction) Industrial Transformer Isolation IP54 10000@25℃ 0.5C/0.5C,90%DOD ，80%EOL CAN/Ethernet /485 LCD ＜78dB |
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Core Highlights
Core Highlights
Energy Output: 125KW continuous power
Total Capacity: 232.9kWh
Battery Chemistry: LFP (LiFePO4) 280Ah cells
Cell Configuration: 260S1P (5 strings of 52S1P)
Voltage Range: 650V ~ 950V | Nominal Voltage: 832V
Cooling: Integrated high-efficiency liquid cooling system
AC Coupled: Designed for seamless integration with diesel gensets, microgrids, or grid-tied systems—no PV required
Parallel Capability: Supports up to 10 units in parallel, easily scaling to over 2MWh
Electrical Specifications
Output Current: 145A
Output Voltage: AC400V
Grid Connection Type: 3P3W+PE / 3P4W+PE
Output Form: Pure sine wave, stable and synchronized
Isolation: Fully isolated AC system for safety and compatibility
Specifications
Container Size: 1376 mm (W) × 1300 mm (D) × 2050 mm (H)
Weight: Approx. 3200 kg
Cabinet Material: Industrial-grade steel with anti-corrosion coating
Installation Type: Outdoor-ready, plug-and-play configuration
Applications
The container energy storage system has the characteristics of simplified infrastructure construction cost, short construction cycle, high modularity, easy transportation and installation, etc. It can be applied to thermal, wind and solar power plants or islands, small communities, schools, scientific research institutions, factories, large load centers and other applications.
Certifications & Compliance
GSL CESS-125K232 has passed an extensive range of global safety, transport, and electrical standards, making it ready for international deployment:
IEC/EN62619 (Battery safety)
IEC/EN60730, IEC/UL60730 (Control safety)
IEC/EN62477, IEC/EN61000 (Power electronics & EMC)
UN38.3, UN3480 (Transport safety)
GB/T36276 (China national ESS standard)
Liquid cooling energy storage case display
Explore how GSL Energy’s advanced liquid-cooled ESS solutions deliver high efficiency, safety, and stability for industrial and commercial energy needs across the globe.
FAQ – CESS-125K232 Liquid-Cooled Energy Storage System
Email: sales@gsl-energy.com
Service Tel: +86-755-84515360
Address: A602, Tianan Cyber Park, Huangge North Road, Longgang District, Shenzhen, China0086 13923720280