English
All-in-one Liquid Cooling Energy Storage Cabinet System 261kWh All-in-One Liquid Cooling Energy Storage Cabinet for Industrial & Commercial Applications Engineered for Industrial & Commercial Power Reliability Introducing the CESS-125K261, a next-generation 261kWh all-in-one energy storage cabinet developed by GS ENERGY, a global manufacturer specializing in commercial and industrial ESS solutions. Powered by high-capacity 314Ah LiFePO₄ cells, an intelligent liquid-cooling thermal system, and a high-efficiency 125kW PCS, this solution delivers stable, safe, and cost-efficient energy storage for factories, malls, hospitals, data centers, and microgrid projects. Whether your goal is peak shaving, backup power, energy optimization, or renewable integration, the CESS-125K261 provides a scalable, plug-and-play platform designed for long-term performance.
261kWh All-in-One Liquid Cooling Energy Storage Cabinet for Industrial & Commercial Applications
Engineered for Industrial & Commercial Power Reliability
Introducing the CESS-125K261, a next-generation 261kWh all-in-one energy storage cabinet developed by GS ENERGY, a global manufacturer specializing in commercial and industrial ESS solutions.
Powered by high-capacity 314Ah LiFePO₄ cells, an intelligent liquid-cooling thermal system, and a high-efficiency 125kW PCS, this solution delivers stable, safe, and cost-efficient energy storage for factories, malls, hospitals, data centers, and microgrid projects.
Whether your goal is peak shaving, backup power, energy optimization, or renewable integration, the CESS-125K261 provides a scalable, plug-and-play platform designed for long-term performance.
Supports both on-grid and off-grid operations.
IP54 system protection
Product Description
As a leading energy storage cabinet manufacturer, GS ENERGY presents the CESS-125K261—an advanced AC-coupled energy storage solution engineered for maximum energy efficiency and long-term reliability. Designed for commercial and industrial applications, this 261kWh energy storage cabinet integrates cutting-edge 314Ah LiFePO₄ battery cells with a high-performance liquid cooling system to achieve higher energy density, extended lifespan, and reduced cost per kWh.
Product Specifications
| Model No | GS-CESS-125K261 |
| Battery Side | |
| BatteryType | LFP314Ah |
| Cells series & parallel | 260S1P(5*52S1P) |
| Battery Rated Voltage | 832V |
| Voltage Range | 728~936V |
| Battery Rated Energy | 261.2kWh |
| Cooling Method | Liquid Cooling |
| AC Side | |
| Rated Output Power | 125KW |
| Output Power Current | 180A |
| Rated Grid Voltage | AC400V |
| AC Access method | 3P 3W+PE or 3P 3W+N+PE |
| Grid Frequency Range | 50Hz/60Hz |
| THDi | ≤ 3%( Full load ) |
| Power Factor | -1 leading to +1 lagging |
| System Parameter | |
| Maximum PCS Converter Effciency | 98.6% |
| Configuration | MPPT (Optional)、STS(Optional)、PCS |
| Charge/Discharge Rate | ≤0.5P (157A) |
| Cooling Method | Liquid Cooling |
| Operating Temperature | -30~ + 60℃ |
| Relative Humidity | 0%-95% (no condensation) |
| Altitude | 4000m (>2000m derating) |
| lsolation mode | Industrial Transformer lsolation |
| IP Level | IP54 |
| Cycle Numbers | 8500@25℃0.5C/0.5C,90%DOD，80%EOL |
| Communication Interface | CAN/Ethernet/485 |
| Dis play | LCD |
| Noise | <65dB (1m away from the horizontal position of the device) |
•Improved temperature uniformity extends service life
•Three-level topology reduces harmonic distortion
•Excellent handling of transient loads
•Supports renewable integration and microgrid stability
•Multi-level BMS protection
•Real-time cell monitoring
•Automatic thermal balancing
•Remote EMS / cloud platform ready
•Lower operating cost through peak shifting
•Reduces fossil fuel dependency
•Supports ESG and decarbonization targets
•High long-term ROI with low maintenance needs
GS-CESS-125K261 cabinet supports both grid-tied and off-grid microgrid configurations, making it an ideal solution for:
Whether you are building a sustainable energy network or upgrading existing systems, this product is built to optimize consumption, reduce emissions, and maximize economic value.
GS ENERGY provides:
GS Energy provides a complete range of high voltage all-in-one battery energy storage systems designed for commercial, industrial, and large residential applications. Each system is factory pre-configured, combining inverter(s), battery modules, BMS, microgrid controller, HVAC, fire protection, and an outdoor-rated enclosure into a single plug-and-play BESS C&I energy storage battery solution. With modular scalability, multi-level safety protection, and flexible installation options, GSL’s C&I BESS ensures stable, reliable, and cost-efficient power supply for businesses, utilities, and energy communities worldwide.
Smart, Scalable & Reliable ESS for Commercial and Industrial Projects GS ENERGY delivers next-generation commercial energy storage systems engineered for businesses that demand high efficiency, long-cycle performance, and uncompromised safety. Built with Tier-1 LiFePO₄ battery modules (51.2V 314Ah, 14.34kWh) and backed by over 8,000 charge cycles, each system provides up to 112kWh and can be expanded to 3,584kWh (3.5MWh) with 32 units in parallel. Whether for solar self-consumption, peak shaving, backup power, or microgrid deployment, GS ENERGY enables enterprises to reduce electricity costs while ensuring stable power supply and long-term operational reliability.
Scalable 20kWh – 60kWh Lithium Ion Energy Solutions for Commercial & Industrial Applications The GSL HV51100 Series is a state-of-the-art high voltage battery storage solution engineered for commercial and industrial energy applications. Utilizing lithium ion high voltage battery technology, the system can be deployed as a 20kWh battery, 40kWh system, or scaled up to a 60kWh battery configuration, providing versatile energy storage for offices, factories, telecom sites, and microgrids. Designed with intelligent air-cooling and robust thermal management, the HV51100 Series ensures reliable operation and a long 6,500+ cycle lifespan. For enhanced flexibility, the system supports up to 32 battery units in parallel, while compatible inverters allow 10 units in parallel, enabling large-scale power storage solutions. With IP54-rated enclosures and international certifications including UL1973, UL9540, UL9540A, and IEC62619, the HV51100 Series delivers safe, scalable, and future-ready high voltage battery storage, ideal for demanding commercial and industrial environments.
As a leading energy storage system supplier, GS Automatic offers compact, integrated cabinet BESS designed for small C&I, hospitals, conferences, and weak power grid areas.
The GS Automatic outdoor distributed energy storage system integrates core parts such as the battery units, PCS, fire extinguishing system, temperature control systems, and EMS systems.
GS5T0215-PV050 Nominal capacity: 110kWh Maximum Input Power: 96kW Rated Output Power: 50kW Maximum Output Power: 50kW Net Weight: 1370 kg Gross Weight (with packaging): 1420 kg Unit Dimensions: 1000 × 1320 × 2145 mm Dimensions with Packaging: 1070 × 1390 × 2285 mm
GS5T110-PV050-B03 Charging/Discharging C-rate: ≤0.5CP Rated Power [kW]: 100 Rated Current: 144A Dimensions [mm] (D*W*H): 1400×1200×2200 Weight [kg]: 2450±5%
GS AUTOMATIC is a leading comprehensive solution provider of new power system.
We provide whole life cycle management, EPC contracting and maintenance service to help our customers achieve green power generation and high efficient energy consumption.
