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Liquid Cooling 125KW 261kWh Lithium Battery Energy Storage Cabinet
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Liquid Cooling 125KW 261kWh Lithium Battery Energy Storage Cabinet
Power Conversion System (PCS): 125KW PCS providing 400V three-phase AC output.
Energy Capacity: 261KWh
Battery Technology: Lithium Iron Phosphate (LiFePO₄)
Lifespan: >6000 Cycles @ DOD 90%
Cooling System: Liquid-cooling system
Operating Temperature: -25°C to 55°C
Communication Protocols: Ethernet, Modbus, CAN, RS485
Support Parallel Up to 8 Units (1000 KW)
Protection: IP55 Waterproof & Dustproof
Certification: IEC, CE, UN38.3, MSDS, EN50549
MECC Liquid Cooling 125KW PCS + 261KWH Battery Energy Storage System
The 125kw+261kwh liquid -cooled Energy Cube utilizes an independent iquid cooling system, achieving higher energy density and cooling
capacity within a compact design. It offers high efficlency, low noise, safety, reliability, and easy scalabilty. Whenintegrated with PCS (Power Conversion Systems), it canregulate grid voltage, correct three -phase imbalance, and manageharmonics, enhancing power quality.
The MECC 125kW/261kWh system is a long-duration BESS designed for over 2 hours of continuous full-load discharge. This makes it superior to standard 215kWh or 241kWh cabinets for facilities requiring extended backup during grid outages.
Detailed Product Features:
1. High-Efficiency LiFePO₄ Battery Technology
Delivers a long lifespan, enhanced safety, and high energy density
Maintains a 90% Depth of Discharge (DoD) for maximum energy utilization
2. Intelligent Energy Management System (EMS)
Supports multiple operating modes, including peak shaving, time-shifting, and emergency backup
Real-time monitoring and remote management capabilities
3. Independent Liquid Cooling
Features liquid cooling design with low noise operation at <75dB.
4. Advanced Safety & Protection Features
Optional AFCl to effectively prevent fire risks caused by arc faults, ensures system safety.
Multi-layer Protection: Supports battery health alerts and multi-layer protection mechanisms, ensures safety and stability during operation.
5. Easy Installation
Cost-effective Installation: Plug and play pre-assembled simplifies on-site setup. saves time and labor.
Optimizing EV Fast-Charging Stations: The 125kW/261kWh configuration is the ideal buffer for EV Super-charging stations. It absorbs grid impact during peak charging bursts (125kW output) while providing sufficient energy depth (261kWh) to support multiple charging cycles without depleting.
Facing high energy prices and growing demand for energy independence, an Estonian factory adopted five MECC ECO-E233LS cabinets with an STS1000 smart ransfer cabinet and three Autarco PV inverters. The on-grid self consumption system allows daytime solar charging and night time use, maximizing renewable utilization and reducing grid reliance.
With A -powered EMS and modular all-in-one design, helps industrial clients achieve stable power supply, lower electricity costs, and smarter energy management.
FAQ
What is the cycle life of the 261kWh battery pack in the cabinet?
The 261kWh LiFePO₄ battery pack in the cabinet supports more than 6,000 charge-discharge cycles at 80% Depth of Discharge (DOD). After 6,000 cycles, the capacity retention rate is still above 80%, which can meet the long-term operation needs of commercial and industrial projects (usually 8-12 years). The battery pack is specially optimized for the liquid-cooling system, with better cycle stability than ordinary energy storage batteries, and lower long-term operation and replacement costs.
What protection functions does the cabinet's BMS and overall safety system provide?
The cabinet is equipped with a high-performance integrated BMS and a multi-level safety protection system. The BMS provides real-time monitoring and full-range protection for the battery pack, including overcharge, over-discharge, over-current, short-circuit, over-temperature, under-temperature, and cell balancing protection. The overall cabinet is also equipped with: automatic fire suppression system (dry powder or gas spray when fire is detected), smoke and temperature sensors (24-hour real-time monitoring of cabinet internal environment), leakage protection, and surge protection. It can automatically cut off the circuit in case of abnormalities to ensure the safety of equipment, personnel, and the site.
Can multiple 125kW + 261kWh liquid-cooled cabinets be connected in parallel to expand capacity and power?
Yes, multiple identical 125kW + 261kWh liquid-cooled cabinets can be connected in parallel to flexibly expand total power and energy, adapting to large-scale energy storage projects. For example, 2 cabinets in parallel can reach 250kW + 522kWh, 4 cabinets in parallel can reach 500kW + 1044kWh, which is suitable for large industrial parks, factories, and commercial complexes with high power demand. The parallel connection is standardized and modular, and the system can automatically realize power and energy distribution, with simple on-site connection and no additional complex configuration, but it needs to be operated by professional technicians in accordance with the manufacturer's guidelines.
Can the MECC 125kW/261kWh BESS support a factory with heavy motor starts?
Yes, the MECC 125kW/261kWh system is engineered to handle industrial inductive loads, including heavy motor starts. However, the successful operation depends on the PCS (Power Conversion System) overload capacity and the use of Soft Starters or Variable Frequency Drives (VFDs) within your facility.
Handling In-rush Current:
Standard motors can draw 5 to 7 times their rated current during startup (In-rush current). For a large motor, this spike can momentarily exceed the 125kW rated power of the BESS. Our integrated 125kW PCS is designed with a short-term overload capability (typically 110%-120% for 1 minute, and up to 150% for 10 seconds), allowing it to buffer these transient surges effectively.
Voltage Stabilization & Grid Support:
In On-Grid Mode, the BESS performs Peak Shaving and Voltage Support. When a heavy motor starts, the BESS discharges instantaneously to prevent a significant voltage dip from the grid, protecting other sensitive electronic equipment in your factory from brownouts.
Off-Grid (Backup) Considerations:
In Off-Grid Mode, the BESS acts as the primary voltage source. To ensure stability when starting large inductive loads:
Soft Starters/VFDs: We strongly recommend using VFDs or Soft Starters to limit the starting current to 2-3x the rated current.
Sizing Rule: The total starting surge should stay within the PCS's peak power limit. Our 125kW system can typically support a single direct-on-line (DOL) start for motors up to 30-45kW, or much larger motors if equipped with a VFD.
High-Density 261kWh Buffer:
The 261kWh energy capacity, powered by high-capacity 314Ah cells, provides a deep energy buffer. This ensures that even with frequent high-torque starts throughout the day, the battery maintains a stable voltage curve and sufficient "State of Charge" (SOC) to handle the next demand spike without degrading the cells.
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