ECO 50 kW / 104 kWh Grid-Connected Energy Storage System (Distribution Area Power Management – Three-Phase Medium-to-High Power)

The ECO 50kW/104kWh is a medium-to-high-power model in Changhong’s Taiqu three-phase power management series. It has a rated output power of 50kW and is equipped with 13 battery modules, each with a capacity of 8kWh, for a total energy storage capacity of 104kWh. The system features a 400V three-phase four-wire output, with a rated current of 72.5A and a maximum bypass current of 116A. It is ideally suited for power quality management and energy storage applications in medium-sized industrial parks, large commercial complexes, and other scenarios involving high-power three-phase loads. Its split-design facilitates easy transportation and installation, while precise cross-phase control enables effective management of three-phase imbalances.

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50High-power three-phase output in kW

400V three-phase four-wire, rated current 72.5A, maximum bypass current 116A.

104High-capacity energy storage

13 modules, each with 8 kWh, providing approximately 20.8 hours of daily household power backup.

100Three-phase unbalance management

Precise cross-phase control to improve power quality in distribution networks.

Split design

Convenient for transportation and on-site installation, adaptable to various substation environments.

String module architecture

mixed use of new and legacy components, fault isolation, and flexible scalability

Industrial-grade protection

IP54+ forced air cooling, operating temperature -25℃ to 55℃

ApplicationApplication Scenarios

Medium-sized industrial park power distribution (peak-shaving and valley-filling, demand management)

Backup Power for Large Commercial Complexes/Supermarkets

Three-phase power quality management for overloaded areas in distribution network substations

Integrated Photovoltaic-Storage-Charging Power Station (Three-Phase)

Daily household emergency backup power (basic power supply guarantee during power outages)

Distribution Area Energy Storage (Energy Storage and Voltage Regulation for Urban and Rural Distribution Networks)

ReferenceUse time reference

The above data were obtained by our internal laboratory under specific environmental conditions. Actual usage duration may vary depending on factors such as load type, ambient temperature, and battery condition; please refer to actual testing results for accurate information.

Use case	Battery life
Daily household use (basic electricity consumption for lighting, refrigerators, routers, etc.)	Approximately 20.8 hours
Small commercial (mixed electricity use for shops, offices, etc.)	About5.2Hour
Full-load operation (50kW rated output)	Approximately 2.08 hours

ParametersTechnical Parameters

Grid-connection parameters for communication

Parameter	Specifications
Rated output power	50kW
Rated current	72.5A
Maximum bypass current	116A
Rated grid voltage	400V/230V, 3L/N/PE (Three-phase)
Rated input frequency	50/60Hz
Power factor	-1~+1

Off-grid communication parameters

Parameter	Specifications
Off-grid voltage exchange	400V/230V, 3L/N/PE
Maximum apparent power output	1.25Times/100s

Battery parameters

Parameter	Specifications
Cell capacity	314Ah (LFP)
Module Nominal Capacity	25.6/8 kWh
Module topology/output voltage	DCDC Boost/400Vdc
Cycle life	6000Next (95% DO)D & EOL: 80% SOH)
Magnification	0.5P
Number of modules / Battery capacity	13One module / 104 kWh

System parameters

Parameter	Specifications
Communication method	CAN/RS485/4G
Fire protection system	Perfluorohexanone Fire Extinguishing
Cooling method	Forced air cooling
Operating temperature range	-25℃~55℃
Protection rating	IP54
Cabinet dimensions (width × height × depth)	<1841×1990×970mm
Weight	<1560kg
Working altitude	<4000m
Operating humidity range	5Approx. 95% RH (no condensation)
Noise	<65dB

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