261kWh All-in-One Liquid Cooling Energy Storage Cabinet for Industrial & Commercial Applications
Discover the CESS-125K261—an all-in-one 261kWh energy storage cabinet designed by leading energy storage cabinet manufacturer XSY ENERGY. Engineered with advanced 314Ah battery cells and a state-of-the-art liquid cooling system, this AC-coupled system is ideal for industrial and commercial power backup, peak shaving, and microgrid applications. Whether you’re operating a factory, shopping center, hospital, or residential complex, this scalable energy storage cabinet solution helps optimize electricity usage, reduce costs, and support sustainable development goals. Its modular design, high energy density, and long service life make it an outstanding choice for future-proof energy storage infrastructure. Looking for a reliable energy storage cabinet supplier or interested in wholesale energy storage cabinet options? XSY ENERGY provides full technical support, international certifications, and fast delivery to empower your clean energy projects.

Model No | XSY-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
XSY-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, XSY 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 XSY ENERGY
Whether you’re looking for wholesale energy storage cabinet options or tailored solutions from a world-class energy storage cabinet manufacturer, XSY ENERGY offers OEM/ODM services with global shipping and full technical support.
