• China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price System 1
  • China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price System 2
  • China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price System 3
  • China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price System 4
China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

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5000 pc
Supply Capability:
8000000 pc/month

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Polycrystalline Silicon Solar Cells:

Solar cells is made by solar wafer, it has three categories of solar cell right now, monocrystalline polycrystalline and thin film,These cells are entirely based around the concept of ap-n junction, which is the critical part of solar module, it is the part that can convert the light energy into electricity, the thickness is from 180um to 200um, with even busbars to conduct electricity, textured cell can decrease diffuse reflection; they are often electrically connected and encapsulated as a module. Photovoltaic modules often have a sheet of glass on the front (sun up) side, allowing light to pass while protecting  semiconductor wafers from abrasion and impact due to wind-driven debris, rain, hail, etc. Solar cells are also usually connected in series in modules, creating an additive voltage. Connecting cells in parallel will yield a higher current;With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.

Polycrystalline Silicon Solar Cells Advantage:

•  High efficiency and stable performance in photovoltaic conversion.
•  Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
•  Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and  attractive appearance.
•  High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
•  High precision patterning using screen printing, ensuring accurate busbar location for ease with automatic soldering a laser cutting. 

Applications of Polycrystalline Solar Cells

Assemblies of photovoltaic cells are used to make solar modules which generate electrical power from sunlight, as distinguished from a "solar module" or "solar panel". A solar array generates solar power using solar energy.

 

Packaging & Delivery of Polycrystalline Solar Cells

Carton Box Package and Deliver by air. It should be noticed that it should be avoid of water, sunshine and moist.

Specification:

Mechanical data and design

  Format          -       156 mm × 156 mm ± 0.5 mm  

Thickness-       -       200 μm ± 20 μm

Front (-)               1.4 mm bus bars (silver),blue anti-reflection coating (silicon nitride)

Back (+)           -     2 mm wide soldering pads (silver) back surface field (aluminium)

Temperature Coefficient of Cells

Voc. Temp .coef.%/K                 -0.364%/K   

Isc . Temp .coef.%/K                 +0.077%/K

Pm. Temp. coef.%/K                 -0.368%/K

 

Electrical Characteristic

Efficiency (%)           Pmpp (W)          Umpp (V)        Impp (A)           Voc (V)          Isc (A)      

  18.00%                    4.380                 0.538             8.141               0.634             8.740

  17.90%                    4.356                 0.538             8.097               0.634             8.725

   17.80%                    4.331                 0.537             8.065                0.633            8.710

   17.70%                    4.307                 0.536             8.035                0.632            8.695

   17.60%                    4.283                 0.535             8.006                0.631            8.680

   17.50%                    4.258                 0.534             7.974                0.630            8.665

  17.40%                    4.234                 0.533             7.944                0.629            8.650

  17.30%                    4.210                 0.532             7.914                0.628            8.635

   17.20%                    4.185                 0.531              7.88    --            0.627        -- 8.620

   17.10%                    4.161                 0.530              7.851                 0.626           8.605

   17.00%                    4.137                 0.529              7.820                0.625           8.590

 

Intensity Dependence

Intensity [W/m2]      Isc× [mA]          Voc× [mV]           Pmpp

1000                         1.00                    1.000                 1.00

900                           0.90                    1.000                 0.90

800                           0.80                    0.99                   0.80

500                           0.50                    0.96                   0.49

300                           0.30                    0.93                   0.29

200                           0.20                    0.92                   0.19

 

IV Curve

China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

 

Solar Panel Images:


China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

 

China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

 

China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

 

 China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price

 FAQ

We have organized several common questions for our clientsmay help you sincerely

What price for each watt?

It depends on the efficiency of the solar cell, quantity, delivery date and payment terms.

How long can we receive the product after purchase?

In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers.Commonly 7 to 10 working days can be served.

Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.

We can provide you not only the solar module but also the off grid solar system, we can also provide you service with on grid plant.

What is your warranty of solar cell?

 Our product can promise lower than 0.3% open box crack, we support claim after opening the box if it has crackm color difference or sth, the buyer should give pictures immediately, we can not accept the claim after the solar cell has assembled to solar panel.

• Timeliness of delivery

• How do you pack your products?

We have rich experience on how to pack the solar cell to make sure the safety on shipment, we could use wooden box or pallet as buyer's preference.

 Can you do OEM for us?

Yes, we can.

 

  

Brief introduction of Sun Solar Cell Power System

Sun solar cell power systems, also known as solar power systems, solar energy is converted to electrical energy through the solar charge controller to power the load, while to the battery pack.
Solar power generation systems, also known as solar power systems, solar energy is converted to electrical energy through the solar charge controller to power the load, when to charge the battery; in the absence of sunlight through the solar charge controller from the battery to the DC load, but also directly to the battery while the individual inverter power supply, through a separate inverter is inverted into AC to AC load powered by.
Solar power system consists of solar batteries, solar controller, battery (group) composition. If the output power to 220V AC or 110V, also need to configure inverter.

Classification of Sun Solar Cell Power System

Solar power generation into off-grid power systems and grid systems:
1. Off-grid power systems. Mainly consists of solar modules, controller, battery composition, to an AC load, also need to configure AC inverter.
2.  DC power generation system is generated through solar modules and grid-connected inverter converts AC power into the electricity grid in line with the requirements of direct access to the public grid after this. And power generation systems have centralized large-scale power plants are generally national grid station, the main feature is the power can be directly delivered to the grid by grid power to the unified deployment of the user. But this power plant investment, long construction period, large area, the development of a relatively large degree of difficulty. The small and decentralized power generation systems, especially BIPV power system, due to the small investment, quick construction, small footprint, large policy support, etc., is the grid of the mainstream.


Q:How many solar cells are there in a solar panel?
20?
Q:Can solar cells be used to power large industrial facilities?
Yes, solar cells can be used to power large industrial facilities. However, the feasibility and effectiveness of using solar cells for such facilities depend on factors such as the size of the facility, its energy requirements, available space for installing solar panels, and the cost-effectiveness of implementing and maintaining the solar power system.
Q:How do solar cells perform in extreme temperatures?
Solar cells can be affected by extreme temperatures, both hot and cold. High temperatures can decrease the efficiency of solar cells and reduce their power output, while very low temperatures can also impact their performance. However, modern solar cell technologies have been developed to minimize these effects and ensure better performance even in extreme temperatures.
Q:Monocrystalline silicon and polycrystalline silicon cell in the appearance of what is the difference?
From the appearance point of view: monocrystalline silicon cell four corners were arc-shaped, no surface pattern; polysilicon cell four corners for the square angle, the surface has a similar pattern of ice flowers.
Q:What is the impact of solar cells on reducing energy waste?
Solar cells have a significant impact on reducing energy waste by harnessing the sun's energy and converting it into electricity. By utilizing renewable and clean energy sources, solar cells contribute to reducing the dependence on fossil fuels, which are finite and contribute to environmental pollution. Additionally, solar cells help decrease energy waste by generating electricity at the point of use, minimizing transmission and distribution losses.
Q:What is the maximum temperature a solar cell can withstand?
The maximum temperature a solar cell can withstand varies depending on the specific type and design of the cell. However, most solar cells can typically withstand temperatures up to around 85-90 degrees Celsius (185-194 degrees Fahrenheit) without significant degradation in performance.
Q:Can solar cells be used in powering communication networks?
Yes, solar cells can be used to power communication networks. Solar cells convert sunlight into electricity, which can then be used to power various devices and systems, including communication networks. This makes solar energy an environmentally friendly and sustainable option for powering these networks, especially in remote or off-grid locations where access to traditional power sources may be limited.
Q:Can solar cells be used in security systems?
Yes, solar cells can be used in security systems. Solar-powered security systems utilize solar cells to convert sunlight into electricity, which is then stored in batteries to power the system. This allows for independent operation and eliminates the need for a constant power supply or wiring, making solar-powered security systems an efficient and sustainable choice.
Q:How do solar cells perform in regions with high levels of air pollution?
Solar cells tend to perform less efficiently in regions with high levels of air pollution. The particles and pollutants in the air can block sunlight from reaching the solar cells, reducing their ability to generate electricity. Additionally, air pollution can accumulate on the surface of the solar panels, further reducing their efficiency. Regular cleaning and maintenance of the solar panels can help mitigate the impact of air pollution on their performance.
Q:I would like to use a ppt to show how solar cells can work in a power generation factory, can anybody share some useful information with me?
I have a ppt which was for my presentation of solar cell research I did when I was in univeristy, I can share with you if you need it.

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