CESS-125K261 Energy Storage Cabinet System
Product Description
As a leading energy storage cabinet manufacturer, GSL 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
Find the energy storage system product you need.
| Model No | GSL-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) |
Core Advantages of the 261kWh Energy Storage Cabinet
High Energy Density & Extended Cycle Life
At the heart of this system lies the high-capacity 314Ah battery cell. Each unit offers over 12,000 cycles, delivering reliable energy even in frequent charge/discharge scenarios. Enhanced with advanced materials, this design improves energy density by over 12% compared to previous models, providing more usable power in the same footprint.
Advanced Liquid Cooling for Thermal Safety
Unlike traditional air-cooled systems, this energy storage cabinet features a proprietary liquid cooling system. It ensures even heat dissipation, avoids hotspots, and maintains safe operations in extreme conditions—all while significantly reducing operational noise. This makes it ideal for noise-sensitive installations such as residential areas and office zones.
All-in-One Compact Modular Architecture
The cabinet comes with a fully integrated inverter (125kW), intelligent BMS, EMS-ready controls, and internal power distribution—all packed into one unit. This minimizes cabling work, accelerates on-site installation, and simplifies O&M. With plug-and-play scalability and up to 16 units in parallel, it supports flexible capacity upgrades tailored to project growth.
Smart Integration for Diverse Energy Scenarios
GSL-CESS-125K261 cabinet supports both grid-tied and off-grid microgrid configurations, making it an ideal solution for:
Factories
Shopping Malls
Residential Complexes
Hospitals
Other Commercial/Public Infrastructures
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.
125k energy storage converter & System Reliability
125kW PCS with liquid cooling for improved device lifespan and thermal stability
IGBT components and critical capacitors with optimized temperature uniformity
Three-level topology enhances power quality and efficiency
Withstands 100% three-phase imbalance and high impact loads
IP65-rated design for superior environmental protection
Full certification portfolio: UL (North America), CE (Europe), and other international grid compliance
50°C high-temperature operation with adaptive system tuning
Compatible with black start, reactive power compensation, virtual synchronous generator (VSG), PQ decoupling, off-grid mode, and low/high voltage ride-through
Sustainability Meets Scalability
As a trusted energy storage cabinet supplier, GSL ENERGY empowers businesses to accelerate their transition to low-carbon operations. Our solution not only reduces dependency on fossil fuels but also offers tangible long-term ROI through reduced electricity bills, lower maintenance costs, and robust system uptime.
Partner with GSL ENERGY
Whether you’re looking for wholesale energy storage cabinet options or tailored solutions from a world-class energy storage cabinet manufacturer, GSL ENERGY offers OEM/ODM services with global shipping and full technical support.
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