Wholesale China Solar Cells Polycrystalline Solar Cells with Low Price
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 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.
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
Solar Panel Images:
FAQ
We have organized several common questions for our clients,may help you sincerely:
①What price for each watt?
It depends on the efficiency of the solar cell, quantity, delivery date and payment terms.
②How 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.
③Can 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.
④What 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
• ⑤How 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.
⑥ Can you do OEM for us?
Yes, we can.
R & D of Solar Electric Cell Closes to the market
Currently, the whole solar electric cell industry face with overcapacity, and actively expand the consumer sector will undoubtedly become an important means to resolve its excess production capacity.
In many cells, photovoltaic power generation module neatly arranged on the carport, the roof, sunny days to convert solar energy into electricity, supplying carport or household use, excess electricity can also be sold to the national grid and increase revenue.
In rural areas, the solar cell application prospect is very broad. As technology advances and changes in consumption concept, the solar cell is constantly "downsizing" has become an important feature for portable products and selling points.
The most common solar electric cell is the portable mobile power. By convert light energy into electrical energy and stored in the built-in lithium battery, solar mobile power can give mobile phones, digital cameras, tablet PCs and other products charge, both energy-saving and environmentally friendly.
Today, more and more people use solar electric energy products. These are stylish low-carbon products, as well as fun. College students said. She took a creative foldable solar lighting, lighting the top of the solar panels to provide electricity for a rainy day, folded and portable features and provides the possibility for outdoor use.
The development of mobile solar energy is a major opportunity for the industry. Mobile Energy as mobile communications and mobile Internet +, like, will change the traditional energy production and consumption patterns, so that the traditional centralized power into each individual can generate electricity, energy will be everywhere.
There are characteristics of distributed generation PV products, especially flexible products, and intelligent terminal products should be combined. When the arrival of the era of mobile energy, we will each bag, tent, clothes, utilities and electronic products are distributed by a flexible technological transformation and innovation, moving only the energy market in 2020 can reach the level of 1 trillion dollars.
- Q: What is the role of solar cells in powering traffic signals?
- Solar cells play a crucial role in powering traffic signals as they convert sunlight into electricity, which is then used to operate the signals. By harnessing renewable energy, solar cells eliminate the need for grid connection or reliance on fossil fuels, making traffic signals more sustainable and cost-effective.
- Q: Can solar cells be used for powering streetlights?
- Yes, solar cells can be used for powering streetlights. Solar-powered streetlights use photovoltaic panels to convert sunlight into electricity, which is then stored in batteries for use during the night. This sustainable and renewable energy source eliminates the need for traditional grid electricity, reducing costs and environmental impact.
- Q: Can solar cells be used in greenhouses?
- Yes, solar cells can be used in greenhouses. They can help generate clean and renewable energy to power various functions in the greenhouse, such as lighting, ventilation, and irrigation systems. By harnessing the sun's energy, solar cells contribute to making greenhouses more sustainable and reducing reliance on fossil fuels.
- Q: How do solar cells perform in dusty environments?
- Solar cells can experience a decrease in performance in dusty environments as dust particles can block sunlight from reaching the surface of the cells, reducing their efficiency. Regular cleaning and maintenance are necessary to ensure optimal performance in such conditions.
- Q: How do solar cells handle temperature fluctuations?
- Solar cells are designed to handle temperature fluctuations by incorporating materials that can withstand high temperatures. They are also equipped with cooling mechanisms to dissipate excess heat and maintain optimal operating temperatures. Additionally, solar cells are designed to minimize the impact of temperature changes on their performance by employing temperature coefficients that adjust the electrical output accordingly.
- Q: Can solar cells be used on backpacks or camping gear?
- Yes, solar cells can be used on backpacks or camping gear. They can be integrated into the design of backpacks or attached to camping gear to harness solar energy and convert it into electricity, allowing for convenient charging of devices or powering small electronics while on the go.
- Q: What is the role of bypass diodes in solar cell arrays?
- The role of bypass diodes in solar cell arrays is to minimize the effect of shading or partial shading on the overall performance of the array. These diodes provide an alternate path for the current to bypass the shaded or low-performing cells, ensuring that the rest of the cells can continue operating efficiently. By preventing the shaded cells from dragging down the voltage and current of the entire array, bypass diodes help maximize the power output and overall efficiency of the solar cell array.
- Q: How do solar cells compare to other renewable energy sources?
- Solar cells have several advantages over other renewable energy sources. They are highly versatile and can be installed in various locations, from rooftops to large-scale solar farms. Solar energy is abundant and accessible in most parts of the world, making it a reliable and widely available source of power. Additionally, solar cells have a low environmental impact, as they produce electricity without emitting greenhouse gases or other pollutants. Finally, solar energy is becoming increasingly cost-effective, with declining prices for solar panels and improved efficiency. However, solar cells do have limitations, such as dependence on sunlight availability and the need for large areas of land for large-scale installations. Nonetheless, their numerous advantages make solar cells a valuable and promising renewable energy option.
- Q: How much space is required to install solar cells?
- The amount of space required to install solar cells depends on various factors such as the type and size of the solar cells, their efficiency, and the desired energy output. Generally, for residential installations, a few hundred square feet of roof space or an equivalent area in a yard is typically sufficient to accommodate a solar panel system. However, larger-scale solar power plants or commercial installations may require significantly more space.
- Q: Are there any library or exhibition halls where I can show students at school how the solar cells works?
- Sometimes there are some theme shows focused on solar cell technology in the National Science and technology Museum. You can take your students over there.
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Wholesale China Solar Cells Polycrystalline Solar Cells with Low Price
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 5000 pc
- Supply Capability:
- 8000000 pc/month
OKorder Service Pledge
OKorder Financial Service
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