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: Can solar cells be used for powering transportation infrastructure?
- Yes, solar cells can be used for powering transportation infrastructure. Solar-powered electric vehicles, such as solar cars, solar buses, and solar trains, are already being developed and deployed in various parts of the world. Additionally, solar energy can also be used to provide power for charging stations and electric vehicle infrastructure, reducing reliance on traditional energy sources and promoting sustainability in transportation.
- Q: How do solar cells perform in areas with high levels of dust?
- Solar cells can experience reduced performance in areas with high levels of dust. The accumulation of dust on the surface of solar panels can block sunlight, leading to a decrease in their efficiency. Regular cleaning and maintenance are essential to ensure optimal performance in such dusty environments.
- Q: Can solar cells be used in railway applications?
- Yes, solar cells can be used in railway applications. They can be used to power various systems such as lighting, signaling, and communication equipment along railway tracks. Solar cells are reliable, cost-effective, and environmentally friendly, making them a suitable renewable energy solution for railway infrastructure.
- Q: Can solar cells be used for disaster relief efforts?
- Yes, solar cells can be used for disaster relief efforts. They provide a reliable and sustainable source of electricity, enabling the operation of essential equipment such as medical devices, communication systems, and water purification systems in areas affected by natural disasters. Solar cells can also be easily transported and quickly deployed in emergency situations, making them an ideal solution for providing power in remote or inaccessible locations.
- 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 and dirt particles accumulate on the surface of solar panels, they block sunlight from reaching the photovoltaic cells, thereby reducing the amount of electricity generated. This buildup can cause a decrease in energy production by up to 20%. Regular cleaning and maintenance of solar panels are crucial to ensure optimal efficiency and maximize the electricity output of the system.
- Q: How can solar cells be used in residential applications?
- Solar cells can be used in residential applications by installing solar panels on rooftops or other open areas to capture sunlight and convert it into electricity. This clean and renewable energy source can power various appliances and lighting systems within a home, reducing reliance on traditional grid electricity and lowering utility bills. Additionally, excess energy generated by solar cells can be stored in batteries or fed back into the grid, further promoting sustainability and potentially earning homeowners credits or incentives.
- Q: What is the role of monitoring systems in solar cell systems?
- The role of monitoring systems in solar cell systems is to continuously monitor and analyze the performance and efficiency of the solar panels. It allows for real-time tracking of the energy production, detecting any malfunctions or abnormalities, and identifying potential issues that may affect the overall system performance. This data helps in optimizing the efficiency of the solar cell system, ensuring maximum energy generation, and enabling timely maintenance and repairs. Monitoring systems also provide valuable insights for system optimization, energy consumption analysis, and performance evaluation.
- Q: Can solar cells be used for telecommunications infrastructure?
- Yes, solar cells can be used for telecommunications infrastructure. Solar cells can generate electricity from sunlight, making them an ideal renewable energy source for powering remote telecommunications towers, base stations, and other infrastructure. They can provide a reliable and sustainable power supply in areas where grid electricity is unavailable or unreliable, reducing dependence on fossil fuels and minimizing operational costs.
- Q: How do solar cells handle shading or obstructions?
- Solar cells are designed to handle shading or obstructions by employing bypass diodes. These diodes allow the current to bypass the shaded or obstructed areas, preventing them from affecting the overall performance of the solar cell.
- Q: What is the impact of wind on solar cell performance?
- The impact of wind on solar cell performance can be both positive and negative. On one hand, a gentle breeze can help cool the solar panels, preventing them from overheating and increasing their efficiency. On the other hand, strong winds can cause mechanical stress on the panels and their mounting systems, potentially leading to damage or reduced performance. Additionally, excessive wind can cause dust and debris to accumulate on the panels, blocking sunlight and reducing their efficiency. Therefore, while some wind can have a beneficial impact, it is important to strike a balance to ensure optimal solar cell performance.
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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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