C&I Energy Storage System

261L Liquid Cooling C&I Energy Storage System

125kW / 261kWh ESS supports parallel expansion up to 20 units. Microgrids & Off-Grid Backup Power

Specifications

The Smart261L liquid-cooled ESS is engineered for:

Commercial & Industrial (C&I) Facility Managers looking to reduce peak demand charges, lower electricity bills, and secure reliable backup power.

EPC Contractors & Project Developers seeking a high-density, all-in-one liquid-cooled storage cabinet with rapid 30-minute deployment.

Energy Aggregators & VPP Operators requiring a grid-ready storage asset supporting parallel expansion (up to 20 units / 2.5MW) and dynamic multi-mode dispatch.

All-in-One Integrated Design: Houses 5 LFP battery packs (261.248 kWh total capacity), a 125kW 3rd-Gen SiC PCS, distribution box, smart liquid cooling unit, BMS, EMS, and firefighting systems in a compact outdoor cabinet ($1400 \times 1400 \times 2200 \text{ mm}$).

3rd-Gen SiC Efficiency & Thermal Consistency: Features a 3rd-Gen SiC PCS for 1% higher conversion efficiency over traditional IGBTs. Smart liquid cooling maintains system temperature variation within $4.5^\circ\text{C}$, extending overall battery cycle life by 15%.

Multi-Layer Safety & Zero Condensation: Equipped with a proprietary full anti-condensation system, 4-level full short-circuit protection ($<5\text{ ms}$ cutoff), cell-to-compartment thermal isolation, and a dual aerosol + water-based firefighting setup.

Flexible Operating Modes: Supports grid-connected and off-grid switching, peak shaving, power factor adjustment, and Virtual Power Plant (VPP) energy-carbon management algorithms.

Modular Front-Maintenance Architecture: Low-center-of-gravity cabinet design with front-access maintenance structure enables quick on-site wiring and installation in as fast as 30 minutes.

Technical Specifications:

Category	Name	Parameters	Remarks
DC Parameters	Cell Type	LFP-3.2V-314Ah
	Battery Rated Capacity	261.248kWh
	Nominal Voltage	832Vdc	Voltage Range:728-936Vdc
	Cooling Method	Intelligent Liquid Cooling
AC Parameters(Grid-connected)	Rated Power	125kW
	Grid Voltage/ Frequency	400V (-10%~10%)/ 50Hz/60Hz
	Rated Current	180A
AC Parameters(Off-grid)	AC Off-grid Voltage/Frequency	400V(-5%~5%) 50Hz/60Hz
	Off-grid Output Voltage Distortion	<3% (inear load)
System Parameters	Cooling Method	Liquid Cooling+Air Cooling
	Fire Protection System	Aerosol+Water-basedFireProtection(optional A
	Anti-corrosion Grade	C4
	ProtectionLevel	IP54(IP55forbattery compartment)
	Operating Temperature Range	-20°℃~+45°℃	Derating when >45℃
	Storage Temperature	-20℃-35℃(≤6months)/ -20℃+45℃(≤1 month)	SOC @20%~50%
	Operating Humidity Range	0~95%RH	No condensation
	System Communication Interface	Ethernet/RS485
	Extemal System Communication Protocol	Modbus TCP/IEC104/Modbus RTU
	Altitude	Within4000m	Derating when>2000m
	Dimensions [mm (WxDxH)	1350×1326×2180

Supports up to 20 units in parallel for grid-connected operations (max 2.5 MW output) and up to 8 units for off-grid operations.

Verify communication wiring and set unit addresses via the local touchscreen before system startup.