• High-Quality Polycrystalline Solar Roof Shingles with Stable Quality System 1
  • High-Quality Polycrystalline Solar Roof Shingles with Stable Quality System 2
  • High-Quality Polycrystalline Solar Roof Shingles with Stable Quality System 3
High-Quality Polycrystalline Solar Roof Shingles with Stable Quality

High-Quality Polycrystalline Solar Roof Shingles with Stable Quality

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Shanghai
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Min Order Qty:
5000 PCS
Supply Capability:
8000000 PCS/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. 

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 Polycrystalline Solar Cells With High Quality and Stable Quality

 

Solar Panel Images:

China Polycrystalline Solar Cells With High Quality and Stable Quality

China Polycrystalline Solar Cells With High Quality and Stable Quality

China Polycrystalline Solar Cells With High Quality and Stable Quality

 

China Polycrystalline Solar Cells With High Quality and Stable Quality

 

China Polycrystalline Solar Cells With High Quality and Stable Quality

 

 

 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.

 

 

In today's energy shortage situation, countries have stepped up the pace of development of photovoltaic. United States proposed "solar pilot project" are intended to reduce the cost of solar photovoltaic power generation to 2015 levels of commercial competition; Japan also made a total power generation of PV reached 28GW in 2020. In the context of the development of low-carbon economy, governments’ acceptance of photovoltaic power generation increased gradually.

Applications of Solar Cell Huge:

1. Traffic areas, such as beacon lights, traffic / railway signal lamps, traffic warning / marker lamps, lights, altitude obstacle light, highway / railway wireless telephone booth, unattended Road class power supply.
2. Communication / communication field: Solar unattended microwave relay stations, cable maintenance stations, broadcasting / communication / paging power system; rural telephone carrier photovoltaic systems, small communication equipment, soldiers GPS power supply.

3. Petroleum, marine, meteorology areas: oil pipelines and reservoirs gate cathodic protection solar power systems, oil drilling platform life and emergency power supply, marine testing equipment, meteorological / hydrological observation equipment.
4. Household lighting power supply: such as garden lights, street lamps, portable lamps, camping lamps, light hiking, fishing lamp, black light, tapping lights, energy saving lamps.
5. The PV power plant: 10KW-50MW independent photovoltaic power plants, scenery (CHAI) complementary power plants, various large parking with charging stations.
6. Solar building solar power and building materials, renders the future of large buildings to achieve electricity self-sufficiency is a major development direction of the future.

7. Other areas include: (1) supporting the car: solar car / electric vehicle battery charging equipment, automobile air conditioners, ventilation fans, cold boxes, and so on; (2) solar hydrogen fuel cell power generation system of regeneration; (3) seawater desalination equipment supply; (4) satellite, spacecraft, space solar power stations.

  


Q:How does solar cell technology apply to our daily life?
It is used in different ways, such as electricity, water supply, etc.
Q:Can solar cells be used in boats or marine applications?
Yes, solar cells can be used in boats or marine applications. Solar panels can be installed on boats to generate electricity by harnessing the power of the sun. This renewable energy source can be used to power various systems onboard such as navigation equipment, lighting, communication devices, and even charging batteries. Solar cells are a sustainable and efficient solution for boats and marine applications as they provide a clean and quiet source of power, reducing the reliance on fossil fuels and minimizing environmental impact.
Q:How do solar cells handle voltage fluctuations?
Solar cells handle voltage fluctuations through the use of voltage regulators or charge controllers. These devices ensure that the voltage output from the solar cells remains stable and within a safe range by regulating the flow of current. This helps to protect the solar cells from damage and ensures efficient power generation.
Q:What is the impact of shading on solar cell performance?
The impact of shading on solar cell performance is significant as even a small amount of shading can significantly reduce the overall efficiency and output of the solar cell. Shading can create "hot spots" on the cell, leading to increased resistance and decreased current flow. This can result in a loss of power generation and reduced performance. Therefore, it is crucial to minimize shading and ensure unobstructed sunlight exposure to maximize the performance and efficiency of solar cells.
Q:Can solar cells be used to power emergency lighting systems?
Yes, solar cells can be used to power emergency lighting systems. Solar cells convert sunlight into electricity, which can be stored in batteries for later use. This makes them a reliable and sustainable source of power for emergency lighting, ensuring that they will continue to function even during power outages or other emergencies.
Q:Can solar cells be used for powering telecommunications towers?
Yes, solar cells can be used for powering telecommunications towers. Solar panels can generate electricity by converting sunlight into usable energy, which can then be used to power various devices and infrastructure, including telecommunications towers. This renewable energy source provides a sustainable and environmentally friendly solution for powering such towers, especially in remote or off-grid areas.
Q:Are there any books in the market t about solar cells and their applications?
There are a lot of resources about solar cells on line, and they are cheaper.
Q:What is the impact of temperature fluctuations on solar cell efficiency?
Temperature fluctuations can have a significant impact on solar cell efficiency. Generally, as temperatures rise, the efficiency of solar cells decreases. This is because higher temperatures can increase the resistance of the materials used in the solar cell, resulting in a decrease in the conversion of sunlight into electricity. Additionally, excessive heat can cause thermal stress and degradation of the solar cell's components, further reducing its efficiency over time. Therefore, temperature regulation and cooling mechanisms are crucial in maintaining optimal solar cell performance and maximizing energy production.
Q:Can solar cells be used in water purification systems?
Yes, solar cells can be used in water purification systems. Solar cells can generate electricity from sunlight, which can be used to power various components of water purification systems, such as pumps, filters, and disinfection devices. This allows for sustainable and environmentally-friendly water purification solutions, especially in areas with limited access to electricity grids.
Q:Can solar cells be used in recreational vehicles (RVs)?
Yes, solar cells can be used in recreational vehicles (RVs). Solar panels can be installed on the roof of an RV to generate electricity from sunlight, which can then be used to power various appliances and systems in the vehicle. This provides a sustainable and eco-friendly way to generate power while on the road.

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