Energy Storage Systems

Leveraging deep industry expertise, we not only meet your stringent requirements for product quality but also provide professional technical support, flexible business models, and comprehensive services to ensure the success of your projects.

APPLICATIONS

Standalone Energy Storage / Integrated PV + Storage

Small & Medium-Sized Commercial & Industrial
Virtual Power Plant (VPP)
Large Zero-Carbon Parks
Transformer Area Energy Storage

PV + Storage + Charging Coupling

Integrated PV + Storage + EV Charging Station

Microgrid

Park Microgrid
Island Microgrid
PV + Storage + Diesel Microgrid

Backup Power

Telecommunications Base Stations
Industrial Production
Medical Special Equipment

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Model	HESS-261-2h
DC Side
Cell Type	LFP3.2V / 314Ah
Battery Pack Configuration	1P52S / 52.25kWh
Battery System Configuration	1P260S
Battery Voltage Range	728 ~ 936VDC
Nominal Energy	261kWh
Temperature Monitoring	Cell + Module + Positive/Negative Terminals
AC Side (Grid-Connected)
Rated Output Power	125kW（@50℃)
Maximum Output Power	137.5kW
Rated Grid Voltage Range	340~440VAC
Rated Grid Frequency	50/60Hz, ±5Hz
Current Total Harmonic Distortion (THDi)	<3% (at rated power)
AC Connection	3P3W / 3P4W (Three-Phase Three-Wire / Three-Phase Four-Wire)
AC Side (Off-Grid)
Rated Output Power	125kW (@50℃)
Rated Output Voltage Range	340~440VAC
Rated Grid Frequency	50/60Hz
Voltage Total Harmonic Distortion (THDu)	<3%
AC Voltage DC Component	<1% U n
Efficiency
Rated Cycle Efficiency	≥88.4%
Maximum Cycle Efficiency	90.30%
Overload Capability
Overload Capability	1.1 times rated power continuous operation (137.5 kW @45°C)
Overload Capability		1.2 times rated power operation for no less than 1 minute
General Parameters
W×H×D	1030 × 2450 × 1400mm
Weight	<2700kg
Operating Temperature	–30 to +55°C (derating above 50°C)
Operating Humidity	0–100% RH (non-condensing)
Operating Altitude	≤2000 m (optional ≤4000 m)
Protection Rating	IP55
Cooling Method	Full Liquid Cooling (PCS + Battery)
Noise Level	70 dB (optional 60 dB)
Rated Charge / Discharge Rate	≤0.5P
Fire Protection System	Fluoroketone + PACK-Level Fire Protection + Water Fire Suppression + Coordinated Ventilation + Explosion Venting (Optional)
AC Line Connection	Bottom Front Access
Display & Communication
Communication Interfaces	RS485、Ethernet、DIO
Communication Protocols	MODBUS-RTU、MODBUS-TCP、DL/T645

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