China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency with Low Price
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- Shanghai
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- 5000 pc
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- 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
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.
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: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 dust and dirt on solar cell efficiency?
- Dust and dirt can significantly reduce the efficiency of solar cells. When dust accumulates on the surface of solar panels, it creates a barrier that inhibits the penetration of sunlight, thereby reducing the amount of energy that can be converted into electricity. Additionally, dirt particles can cause shading effects and create hotspots, which further decrease the overall efficiency of the solar cells. Regular cleaning and maintenance of solar panels are crucial to keep them operating at their maximum potential.
- Q:Solar panel resistance is changed with what
- the lower the ambient temperature, the smaller the internal resistance of the battery, power generation The higher the effect; the other hand, the higher the temperature, the greater the internal resistance, the lower the efficiency.
- Q:Can solar cells be used in underwater vehicles?
- Yes, solar cells can be used in underwater vehicles. However, their efficiency may be significantly reduced due to limited sunlight penetration through water. Specialized solar cells designed for underwater use can be utilized to generate power for these vehicles, but alternative power sources such as batteries or fuel cells are often used for efficient operation underwater.
- Q:What is the payback period for solar cells?
- The payback period for solar cells refers to the amount of time it takes for the cost of installing and maintaining solar cells to be recouped through the savings generated from reduced or eliminated electricity bills. Typically, the payback period for solar cells ranges from 5 to 10 years, depending on factors such as installation cost, energy consumption, government incentives, and regional sunlight availability.
- Q:How many types of solar cells are now being used in real life?
- 3 kinds of solar cells, Silicon-based, organic, chemical.
- Q:Can solar cells be used for powering agricultural equipment?
- Yes, solar cells can be used for powering agricultural equipment. Solar panels can generate electricity from sunlight, which can then be used to power various agricultural equipment such as irrigation systems, water pumps, and electric fences. This can provide a sustainable and environmentally friendly alternative to traditional power sources, especially in remote or off-grid farming locations.
- Q:What are the advantages and disadvantages of solar panels and diodes?
- If it is parallel in the positive and negative, then the protective effect, the diode is connected to the negative power supply, the diode negative connected to the positive power supply.
- Q:Can solar cells be used for powering sports stadiums?
- Yes, solar cells can be used for powering sports stadiums. Solar panels can be installed on the roofs or surrounding areas of stadiums to harness solar energy and convert it into electricity. This renewable energy source can help power various systems within the stadium, such as lighting, scoreboards, electronic displays, and even charging stations. Additionally, excess energy generated by the solar cells can be stored in batteries for use during nighttime events or periods of low sunlight. Using solar cells in sports stadiums not only reduces carbon emissions but also offers long-term cost savings by decreasing reliance on traditional energy sources.
- Q:How do solar cells handle power quality issues?
- Solar cells handle power quality issues by utilizing various components and systems. One of the key components is the inverter, which converts the direct current (DC) generated by the solar cells into alternating current (AC) suitable for use in households or industries. The inverter also helps regulate the voltage and frequency of the electricity produced, ensuring it meets the required power quality standards. Additionally, solar installations may include voltage regulators, surge protectors, and filters to minimize voltage fluctuations, surges, and harmonic distortions that could affect power quality. Overall, these measures help solar cells maintain a stable and reliable power output, successfully addressing power quality issues.
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China Wholesale Polycrystalline Solar Cells A GRADE High Efficiency 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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