KonkaEnergy ESS-261-2H-L Liquid Cooled Integrated Cabinet ESS

The ESS-261-2H-L is KonkaEnergy’s premier, newly developed C&I (Commercial & Industrial) energy storage solution designed specifically for grid-connected applications. This highly integrated system combines a small physical footprint with high-energy density to deliver a low-carbon, high-yield energy storage solution for modern enterprises.

Comprehensive Integration & Design

Our "All-in-One" design philosophy ensures seamless compatibility and simplified installation. The ESS-261-2H-L integrates:

• High-Capacity Storage: Utilizes 314Ah Lithium Iron Phosphate (LiFePO4) batteries.
• Advanced Power Conversion: Features a PCS utilizing third-generation silicon carbide semiconductor solutions for superior performance.
• Thermal Management: An intelligent liquid cooling system using R134a refrigerant and an ethylene glycol carrier to maintain optimal cell temperatures.
• Smart Management: Built-in EMS with cloud platform integration for remote monitoring, data analysis, and revenue calculation.
• Safety First: A three-level fire protection system (Module, Cluster, and Water) and two-level explosion-proof design.

Technical Specifications

Feature	Specification
Nominal Energy	261kWh
Nominal Output Power	125kW
System Conversion Efficiency	Up to 90%
Cycle Life	>8000 cycles
Dimensions (WDH)	1000 x 1350 x 2250mm
Weight	~2500kg
IP Rating	IP54
Operating Temperature	-20°C to 55°C

Key Performance Advantages

• Industry-Leading Footprint: Occupies only 1.35m² of space with a height of 2.17m, allowing for versatile placement in space-constrained C&I environments.
• High Efficiency: Achieves a system conversion efficiency of 90% through intelligent liquid cooling strategies that reduce internal power consumption.
• Grid Stability: Features a charge/discharge conversion time of less than 100ms, supporting rapid response to grid demands.
• Intelligent Operation: Offers both a mobile APP and local web function for convenient on-site operation and maintenance.
• Reliability: Includes a three-level protection system to accurately monitor for abnormalities such as short circuits, over-current, and over-temperature.

Grid & Electrical Data

• Nominal Voltage: 400V 
• Allowable Grid Voltage Range: 400V (-15% to +15%) 
• Grid Frequency: 50Hz / 60Hz 
• Power Factor: -1 to +1 ²⁴
• Altitude Compliance: Up to 3000m (derating applies above 2000m) 
• Certification: GB/T36276