Large-scale Solar Energy Storage System Solution

ECE relies on advanced lithium iron phosphate battery technology, which can provide large-scale energy storage systems, distributed energy storage systems and microgrid systems. The large distributed solar optical storage and power generation system is composed of photovoltaic modules, converter, AC-DC junction boxes and commercial large scale solar battery storagebatteries. The modules of photovoltaic modules transmit electricity to energy storage converters through photovoltaic junction boxes. The EMS system intelligently manages the distribution and use of electricity, and delivers power in real time according to the requirements of the use scenarios.These solutions can be used for frequency regulation, voltage compensation, frequency regulation and power quality management in the power system.

Detail of Large-scale Solar Energy Storage System Solution

The photovoltaic array is a complete power generation unit, consisting of any number of photovoltaic modules and panels. Many 450W-580W photovoltaic modules composed of crystalline silicon cells form photovoltaic arrays installed in series on various types of supports.

Photovoltaic arrays are typically installed on residential roofs, commercial roofs and ground utility scale systems (power stations or industrial parks, etc.).

The battery system is composed of lithium iron phosphate class A cell with good safety performance and long life. A single battery pack is 64V280AH, and 12 batteries are connected in series to form a 215 KWh battery cluster. Multiple battery clusters are connected in series to reach the final required capacity of the system. The battery system stores the photovoltaic power generation energy or the trough energy of the power grid to release when the load is needed, to meet a variety of application scenarios.

Battery status monitoring

Events record and storage function · Operation control

Insulation detection

Dynamicbalancing management

Protection alarms

Communication

Wide-range of DC input voltage

Short conversion time of full power from charge to discharge

Indoor or outdoor installation

Low voltage ride through

Reactive power adjustable, max.reactive power up to 500kVar

Active power derating

Film capacitor design

Controlling PCS and battery stacks to work together

Providing local monitoring and control operation interface

Providing remote monitoring and control operation interface

Recording and storing important operation parameters as accidents and failure data.

A highly sensitive fire alarm system is equipped with temperature sensor and smoke detector. The system has the functions of automatic fire detection, automatic fire alarm, automatic fire extinguishing and automatic fire control status. At the same time, it has self-inspection function, monitoring fault and fault alarm to ensure the fire safety of energy storage power station.

Effective heat management of the heat dissipation of the energy storage system to ensure that the system is in a constant temperature and humidity state, and prevent the energy storage system capacity attenuation, short life reduction and thermal runaway.

Specification of Large-scale Solar Energy Storage System Solution

Battery
Cell chemistry	LiFePO4
Cell Model
Rated power
Rated capacity ±5%	280Ah
Rated energy ±5%	896Wh
Pack Method	24S1P
Rated voltage
Rated capacity±5%	280 Ah
Rated energy±5%	21504 Wh
Operating voltage protection range	60 ~ 87.6V
Battery weight	≈165KG
Battery pack case material	Iron

Container
Model	ESS-20C	ESS-40C
Rated energy ±5%	1000kWh	2000kWh
Rated voltage	768V
Rated capacity±5%	1400Ah	2800Ah
Pack Method	240S5P	240S10P
Rated ACpower	250kW/500kW	500kW/1000kW
Rated AC voltage	400V
Rated AC current	360A/720A	720A/720A*2
THDi	<3%( linear load)
PF adjustable range	-1(leading)～+1(lagging)
Type	modular, high efficiency three level
Protection	over temperature, low temperature charging, over current, short circuit,
	over voltage, under voltage, DC bus protection, etc.
Connection mode	three phase three wire/three phase four wire
isolation transformer	Equipped (optional)
Workingmode	grid-tied peak shaving/off-grid power supply guarantee

General Parameters
Dimensions	6058*2438*2896 mm	12196*2438*2896 mm
Weight
Protection level	IP55
Operating temperature	-25~60℃(derating>45℃)
Relative humidity	0~95%(non-condensing)
Altitude	3000m(>3000m Derating))
Fire extinguishing system	FM200 pipe fire extinguishing system
Battery cabin cooling code	air conditioning cooling
Electric cabin cooling code	fan cooling
Communication	RS485,Ethernet/Modbus RTU, Modbus TCP
interface/protocol
Certifications	IEC6261,UN38.3,UL1973,CE

Container Energy Storage System Structure

Utility Scale Energy Storage System Application

As one of the batteries manufacturers, We provide utility scale solar battery storage,

solar battery container, large scale electricity storage, 10000 kwh battery, utility scale solar storageutility solar storage, pv power systems, etc. For 1 mw lithium ion battery costor more information, please feel free to contact us!

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