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250Kw 250Kva Off Grid Solar Power System Project With Battery Power

Product Specification:
  • Brand Name : TANFON SOLAR
  • Model Number : solar system 250kw
  • DC voltage : 360V
  • Output voltage : 220V/380V/415V
  • Advantage : German Technology
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  • TANFON Solar 12 year solar manufacturer, Professional technical team, German technical products, Home solar, farm, engineering, building, 50000+ successful cases, Have a lot of experience in solar energy solutions, Serving 160 countries, 100% satisfaction.


250Kva Off Grid Solar Power System FS380w solar panel 650pcs
H10T PV 360V combiner 4pc
360V/150A solar controller 4pc
TF250KW three phase inverter 1pc
2V/1500AH gel battery 250pcs
solar panel rack 1set
Battery cable+PV cable 1set
Packaging Information Total volume:105CBM        Total weight;27580KG
Installation area solar panel:1040m²             inverter+battery:20-60m² 

250Kw Off Grid Solar Power System

High-end solar storage system

250Kw Off Grid Solar System

FS380W mono solar panel(poly optional)

Vmp:38.39V  Voc:47.13V  Imp 9.75A    

Size : 1956*992*40mm

25 years life time  (CE TUV)

Coated steel Glass:3.2mm Tem pered

Terminal block:IP65 with MC4 connector

Efficiency performance :25 years 80 % 20 year 85% 10 years 90%

Connect:each 13pcs in series, 4strings in series

250Kw Solar System With Battery

PV combiner

Model:H10T-360v  Multiple PV strings inputs

Simplify wiring between PV array

and controller, protections  to controller ,

Wide range of DC input voltage

Reliable thunderstorm& surge protection

250Kw Solar System With Battery

MPPT controller model: 360V/150A 

Charging efficiency; 90%-95%,

charging mode, intelligent control.,

various protection functions;

Can read daily,monthly and total power generation

250Kw Solar System Cost

Solar three phase Inverter power:SC250kw/360V

WiFi signal receiving module

Low voltage:324V High voltage:442V,

Charging efficiency; 90%-95%,with AC charger built-in, Protection against short-circuit,

Output: 380V 415V 50/60HZ

250Kw Solar System Price


Solar battery

1)Gel battery,2 years warranty.

ship NEW for service.

2)Lithium battery,3 years warranty.

ship NEW for service.

250Kva Solar Power System

Slope Rooftop or Flat rooftop

including complete fittings

wind load:55m/s,snow load:1.5kn/m2

structure:Anodized Aluminum+stainless steel, Angle adjustable

250Kva Solar Power System With Battery

1)84pcs 25mm2*35CM battery cable

6pcs 25mm2*2M battery cable

25mm *30M

2)4mm2 PV cable 400M,16mm2 cable 50M

3)terminals and MC4* 10pairs, air breakers

For the products, Each set solar power system has power on&off test 100 times per hour.Each step of production is under strict quality control. Our products are qualified with CE, ROHS, ISO, SGS certification


For our project case: Our products have been sold to more than 160 countries, (solar home project,solar school project ,solar hospital project,solar farm project ,solar hotel project,solar air port project ,solar millitary project ,Solar energy water treatment equipment project,solar goverment project etc)

we have a professional installation team, which has been to 32 countries and regions ( Egypt, Bangladesh, Chad, Nigeria,Thailand,Ghana, Doha, East Timor state, Pakistan, kenya ,indonesia ,Dubai,Mozambique etc.) for installation service. We also win many good feedbacks from the customers.

For our Global service in Thailand, Kenya, Senegal, Mozambique, will build 120 service centers all over the world. Provide Strong After-Sales Service To Countries in Africa, Latin America and Asia.


                  How to control solar power system(solar panel)  quality? 
System 250Kw Off Grid Solar Power System Pictures



1. Solar cell: Dark color, black, no color difference

2. Solar Cell shape: corner piece

3. Solar cell efficiency: 21%

off grid solar system



1. Classification of solar cell with different colors, powers and efficiencies using automatic sorting equipment

2. EL test of the solar cell by EL device to ensure that the solar cell is not cracked

3. Components are fully automated production line operations

off grid solar system
QC System

1. EL tester tests the solar cell to ensure no cracks

2. The component tester performs EL and data testing before component packaging to ensure data is acceptable and components are not cracked. 

3. Component products are monitored with data from a tester to ensure data is correct

off grid solar system

solar panel system



1. Can be packed in carton box or wooden cases

2. The solar panel is in an upright packaging mode to reduce the transport breakage rate

off grid solar system
Factory Inspection System QC inspection qualified products, distinguish the identification zone placement, ensure the shipment quantity, model, customer name is correct.
After Sales Service System Free replacement of new solar panel during the 10-year warranty period if have any quality problem.

Solar panel production video: Classification of solar cell with different colors, powers and efficiencies using automatic sorting equipment

              How to control solar power system(Solar Inverter) quality?
System System Essentials Pictures



1. Since the establishment of our inverter factory, we have been purchasing transformers and capacitors from the same supplier.

2. MOS tube adopts imported IR brand

3. SCR adopts imported from Germany

4. IGBT adopts Japanese Mitsubishi brand

off grid solar system

off grid solar system



Wall-mounted inverter board production uses automated machine plug-ins. Improve efficiency, reduce loss, and enhance stability off grid solar system
QC System ICT test, pinhole alignment PCB board, check all lines, reduce the failure rate. off grid solar system



Power lower than 1KW inverter carton packaging, containing pearl cotton; power higher than 2KW inverter plywood wooden box packaging, containing pearl cotton. One piece one packaging. off grid solar system
Factory Inspection System Our inverter has passed 100 times of ultimate power-off test. According to statistics, 99% of the tested inverter can work very stable. off grid solar system 
After Sales Service System All inverters are free to send new spare boards within the warranty. For more services, please click the link to view.

Solar inverter board production: use automated machine plug-ins. Improve efficiency, reduce loss, and enhance stability.


Tanfon solar certification:

off grid solar system

off grid solar system

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