High Efficiency Discount Satellite Solar Cells
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 500 pc
- Supply Capability:
- 20000 pc/month
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Size: | 156*156±0.5mm | Max. Power: | 3.99w | Product: | damaged solar cells |
Pmp: | 3.99w | Vmp: | 0.516v | Imp: | 7.731A |
Voc: | 0.621v | Isc: | 8.262A | Efficiency: | 16.25-16.50% |
Thickness: | 190±20um | Format: | 156*156±0.5mm | FF: | 77.77% |
Packaging & Delivery | |
Packaging Detail: | Original Package, 100pcs in one boxes, 10boxes in one carton |
Delivery Detail: | 1~2days |
Specifications | |
damaged solar cells | |
solar cells in stock with immediate delivery with big quantity, all range cells avaiable, poly |
Manufacturer
1,Components,ultra-white Executed tempered glass+PVB+cell+PVB+tempered glass
Glass+PVB+Cell+PVB+Glass
2,Components with ultra-white Executed tempered glass+PVB+cell+PVB+tempered glass+of PVB+tempered glass
Glass+PVB+Cell+PVB+Glass+PVB+Glass
Quality and Safety
1.Rigorous quality control meeting the highest international standards
2.High-transmissivity low-iron tempered glass, strong aluminium frame
3.Using UV-resistant silicon
4.ISO 9001:2008 and ISO 14001:2004
5.IEC61215, IEC61730, Safety Class in conformity to CE
Features
1.High conversion efficiencies resulting in superior power output performance.
2.Outstanding power output even in low light or high temperature conditions
3.Optimized design for ease of soldering and lamination
4.Long-term stability,reliability and performance
Warranties
1.10 years limited product warranty
2.15 years at 90% of the minimal rated power output
3.25 years at 80% of the minimal rated power output
Format: 156mm x 156mm
Thickness: 190um+-20um
Front(-): 1.7mm bus bars(silver),blue anti-reflecting coating(silicon nirtride)
back(+): 3mm wide soldering pads(silver) back surface field(aluminium)
Size | 156mm x156mm ±0.5mm | |||||
Thickness | 190um ± 20um | |||||
Front surface(-) | 1.7mm bus bars(silver), blue anti-reflecting coating(Silicon nitride) | |||||
Back surface (+) | 3mm wide soldering pads(silver) back surface field(Aluminum) | |||||
TkVoltage | -0.351%/K | |||||
TkCurrent | +0.035%/K | |||||
TkPower | -0.47%/K | |||||
Efficiency(%) | Pmp(W) | Vmp(V) | Imp(A) | Voc(V) | Isc(A) | FF(%) |
16.25-16.50 | 3.99 | 0.516 | 7.731 | 0.621 | 8.262 | 77.77 |
16.00-16.25 | 3.92 | 0.512 | 7.66 | 0.616 | 8.195 | 77.68 |
15.75-16.00 | 3.86 | 0.509 | 7.584 | 0.613 | 8.135 | 77.43 |
15.50-15.75 | 3.8 | 0.505 | 7.525 | 0.611 | 8.08 | 77.04 |
15.25-15.50 | 3.74 | 0.502 | 7.458 | 0.609 | 8.053 | 76.2 |
15.00-15.25 | 3.68 | 0.5 | 7.365 | 0.609 | 8.038 | 75.12 |
14.75-15.00 | 3.62 | 0.498 | 7.271 | 0.607 | 8.045 | 74.23 |
14.50-14.75 | 3.56 | 0.497 | 7.16 | 0.604 | 8.04 | 73.3 |
14.25-14.50 | 3.5 | 0.494 | 7.091 | 0.603 | 8.08 | 71.84 |
14.00-14.25 | 3.44 | 0.494 | 6.96 | 0.601 | 8.065 | 70.91 |
solar cell Pic. and drawing:
Benefits of Solar Power:
Now is a great time to go solar and harvest the power of the sun. Here is our top ten list of the benefits to installing solar power:
1, When installed, solar energy is free – no resources are consumed
2, Help to lessen our dependence on heavily polluting coal power stations
3, Fossil fuels can't last forever, future generations will appreciate the effort
4, You are gaining energy independence - add battery backup power for even greater energy security
5, The cost of electricity is only going to rise – insure against that rising cost
6, Quality solar power and water adds value and appeal to your home
7, Solar PV systems are easily upgraded in future - aim to make your house a net energy producer!
8, Solar panels offer a long lifetime of low maintenance service, maybe 30-40 years
9, Your friends will think you're great!
10, You'll feel great for doing your bit for the environment!
FAQ
1, What’s price per product ?
A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.
2, How to make payment?
We accept T/T or L/C.
3, What is your lead time?
Generally 1-5 weeks depends on the order quantity and your specific requirements.
4, Can you do OEM for us?
Yes, we can.
5, How do you pack your products?
We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.
Some basic information about solar cell
Solar cells are devices which convert solar light energy directly into electricity and function by the photovoltaic effect. Photo- means light and -voltaic means electrical current or electricity (light-electricity). A solar cell provides direct current (DC) electricity that can be used to power DC motors and light bulbs among other things. Solar cells can even be used to charge rechargeable batteries so that electricity can be stored for later use when the sun is not available. The fully charged batteries are portable energy that can be used whenever and wherever they are needed.
Solar cells provide DC electricity similar to batteries however, batteries differ because they operate through a process known as an electrochemical reaction. This process will provide an electrical current (electro-) from a chemical reaction (-chemical) that occurs inside the battery. When you hook up a motor to the battery, also known as a load, the reaction begins and electrons flow as shown in the picture: "Battery Circuit". Direct current (DC electricity) is different from the alternating current (AC electricity) that is used to power the TV, refrigerator, and other appliances in your home however, DC can be converted to AC when needed.
Battery Circuit (large image)
Solar cells produce DC electricity from light. Sunlight contains packets of energy called photons that can be converted directly into electrical energy. You can’t see the photons but they hit the cell and produce free electrons that move through the wires and cause an electrical current as shown in the picture: "Solar Cell Circuit". The electrical current is the electricity that powers the motor. Although you can't see the photons you can see the light and you can assume that the amount of photons hitting your solar cell is related to the amount of light hitting your solar cell. A greater amount of light available means a greater amount of photons are hitting your solar cell and the more power you get from it.
Main technical parameters about solar cells
Cell Thickness
An optimum silicon solar cell with light trapping and very good surface passivation is about 100 µm thick. However, thickness between 200 and 500µm are typically used, partly for practical issues such as making and handling thin wafers, and partly for surface passivation reasons.
Doping of Base
A higher base doping leads to a higher Voc and lower resistance, but higher levels of doping result in damage to the crystal.
Reflection Control
(front surface typically textured)
The front surface is textured to increase the amount of light coupled into the cell.
Emitter Dopant
N-type silicon has a higher surface quality than p-type silicon so it is placed at the front of the cell where most of the light is absorbed. Thus the top of the cell is the negative terminal and the rear of the cell is the positive terminal.
Emitter Thickness
A large fraction of light is absorbed close to the front surface. By making the front layer very thin, a large fraction of the carriers generated by the incoming light are created within a diffusion length of the p-n junction.
Doping Level of Emitter
The front junction is doped to a level sufficient to conduct away the generated electricity without resistive loses. However, excessive levels of doping reduces the material's quality to the extent that carriers recombine before reaching the junction.
Grid Pattern.
The resistivity of silicon is too high to conduct away all the current generated, so a lower resistivity metal grid is placed on the surface to conduct away the current. The metal grid shades the cell from the incoming light so there is a compromise between light collection and resistance of the metal grid.
Rear Contact.
The rear contact is much less important than the front contact since it is much further away from the junction and does not need to be transparent. The design of the rear contact is becoming increasingly important as overall efficiency increases and the cells become thinner.
- Q: Monocrystalline silicon and polycrystalline silicon cell in the appearance of what is the difference?
- For the user, monocrystalline silicon cells and polysilicon batteries are not much different. Monocrystalline silicon and polycrystalline silicon cell life and stability are very good.
- Q: Can solar cells be used for electric vehicle charging?
- Yes, solar cells can be used for electric vehicle charging. Solar panels can generate electricity from sunlight, which can then be used to charge electric vehicle batteries. This allows for a sustainable and renewable source of energy for electric vehicle charging.
- Q: What is the impact of algae growth on solar cell performance?
- Algae growth on solar cells can significantly reduce their performance. The presence of algae creates a layer on the surface of the cells, which blocks sunlight from reaching the photovoltaic material. This reduces the efficiency of the solar cells and lowers the amount of electricity they can generate. Additionally, algae can also cause corrosion and damage to the solar cell surface, further impacting its performance and longevity. Therefore, it is crucial to regularly clean and maintain solar panels to prevent algae growth and ensure optimal energy production.
- Q: What is the impact of bird nesting on solar cell performance?
- The impact of bird nesting on solar cell performance can be significant. Bird nests can obstruct sunlight from reaching the solar panels, reducing their efficiency and overall power output. Additionally, bird droppings can accumulate on the surface of the panels, creating a layer that further hinders the absorption of sunlight. Regular maintenance and cleaning are necessary to ensure optimal performance and prevent any long-term damage caused by bird nesting.
- Q: What is the role of silicon in solar cells?
- Silicon is a crucial component in solar cells as it acts as a semiconductor material that can convert sunlight into electricity. When exposed to sunlight, silicon absorbs photons, which in turn excite the electrons, allowing them to flow and generate an electric current. It also forms the basis of the p-n junction, an essential structure within solar cells that separates the positive and negative charges, facilitating the flow of electricity. Overall, silicon's properties make it ideal for harnessing solar energy and converting it into usable electricity.
- Q: What is the impact of solar cells on reducing greenhouse gas emissions?
- Solar cells have a significant impact on reducing greenhouse gas emissions as they generate clean and renewable energy from sunlight, without emitting any greenhouse gases. By replacing fossil fuel-based electricity generation, solar cells help reduce the carbon dioxide and other harmful emissions that contribute to climate change. This transition towards solar energy plays a crucial role in mitigating global warming and creating a more sustainable future.
- Q: What are the different types of solar cells?
- There are several different types of solar cells, including monocrystalline, polycrystalline, thin-film, and concentrated solar cells.
- Q: What is a good introduction of solar cell?
- A small and simple test on the solar cell can be good to start with.
- Q: How to get high voltage and high current output of solar cells?
- Here is the way I tried by myself: Using 0.5 880 volt 5 ampere output of the battery board, in series 440 as the first group, and then get a second group, and then put the two groups in parallel, you can get what you want.
- Q: Is a solar cell expensive to make?
- If you just want to make one solar cell for fun, it's not expensive.
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High Efficiency Discount Satellite Solar Cells
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 500 pc
- Supply Capability:
- 20000 pc/month
OKorder Service Pledge
OKorder Financial Service
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