Solar Panels for Home Roof - A Grade and B Grade 3BB and 4BB High Efficiency 19.7% Solar Cells
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 100000000 watt/month
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Specification
1.Product Description:
Specifications of Poly Solar Cells
Dimension | 156mm X 156 mm ±0.5mm |
Wafer Thickness | 200um ±30um |
Front(-) | Four 1.1mm wide bus bars(silver) with distance 39mm, Acid texturized surface with blue silicon nitride AR coating. |
Back(+) | 2.4mm wide silver/aluminum soldering pads, aluminum back surface field. |
Temperature Coefficient of Poly Cells
Voc.Temp .coef.%/K | -0.351%/K |
Isc.Temp .coef.%/K | +0.035%/K |
Pm.Temp. coef.%/K | -0.47%/K |
Electrical Characteristic of Poly Cells
Efficiency code | 1720 | 1740 | 1760 | 1780 | 1820 | 1840 | |
Efficiency (min) | (%) | 17.2 | 17.4 | 17.6 | 17.8 | 18.2 | 18.4 |
Pmax | (W) | 4.186 | 4.234 | 4.283 | 4.332 | 4.429 | 4.478 |
Voc | (V) | 0.631 | 0.632 | 0.634 | 0.636 | 0.640 | 0.642 |
Isc | (A) | 8.446 | 8.485 | 8.523 | 8.573 | 8.660 | 8.700 |
Vmp | (V) | 0.525 | 0.527 | 0.529 | 0.531 | 0.535 | 0.537 |
Imp | (A) | 7.973 | 8.035 | 8.097 | 8.160 | 8.280 | 8.340 |
2.Advantages of Poly Solar Cells
1). Tire-1 Solar Cells’ Manufacturer Quality Guarantee. With a complete and sophisticated quality government system, our Quality Management have arrived world’s leading place. Customer can receive Tire-1 Cells Maker’s Quality Standard Products.
2). Trusted Warranty. We can supply trusted after-sales service to our customer. If our cells are found not in conformity to the specification of manufacturer, or should the inspected quantity found in shortage, or should the packing found damaged, the buyer has the right to claim to the seller. The claim, if any, should be presented to seller within 30 days after cargo's arrival date to the port, together with related inspection report and photos issued and provided by a reputable independent surveyor such as SGS.
3). World’s Leading Manufacturer Equipment. We imported the newest and leading production equipment from abroad. Advanced equipment can guarantee the stable quality of cells. Auto production line can also save labor cost which will further cut our production cost.
4). Bulk supply: With the production capacity of 500MW, we can produce large quantity every month. This can satisfy most customer requirement.
3.Usage and Applications of Poly Cells
Solar cells 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 the 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;our solar cells have passed IEC Certification.
With high quality and stable quality. Our Cells can greatly improve the performance of Solar Modules.
4.Pictures of Product
5.Packaging & Delivery of Poly Cells
Carton Box Package and Deliver by air. It should be noticed that it should be avoid water, sunshine and moist.
We have organized several common questions for our clients,may help you sincerely:
6.FAQ
1. What’s price per watt?
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. Can you tell me the parameter of your solar cells?
We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.
3. 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.
4. Can you do OEM for us?
Yes, we can.
5. 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 perfect time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.
- Q: Why might energy from the solar panels sometimes be near zero even in the summer?
- Hey Cosmic, forget about Wayfare and Jenny here, but I have to say your question is a bit vague. When you say the panels produce near zero, how near? Are you using a watt meter, ammeter, or some other sort of metering device. Solar electric, or photovoltiac panels are made almost entirely of silicone wafers. Same as computer chips, when they get hot, the resist the flow of electrons. This is why most panel manufacturers advise installers to upgauge wiring if the temperature falls below 40 degrees F (5C) regularly. Below 0 C, you have to upgauge 2 wire sizes. A good quality panel will put out 50% of its rated power in very cold climates, so it stands to reason that they will put out substantially less in hot weather. Many people think places like the SW United States is great for solar because it's always sunny. In Las Vegas for example, they have 27 sunny days a month, and in August, the temperature frequently reaches 50 degrees C (20F) so people with photovoltiac panels are not even getting half their rated power on a good day. I'm not sure this is what you are asking about. Our home has been powered by the wind and sun for 2 years now. In the summer in the upper midwest, the days are warmer of course, but also much longer than in the winter. So our batteries will frequently fill up by 2:00pm, and the charge controller will taper off the solar charging the rest of the day to minimize overcharging. If you were to check the meters at 3pm, you might notice only 3 or 4 amps coming in when the array is rated at 42. This is normal for us in July and August. These are some reason why a solar array produces near zero in the summertime. Take care Cosmic, Rudydoo
- Q: Are solar panels easy to maintain?
- Yes, solar panels are relatively easy to maintain. They require minimal upkeep, with regular cleaning to remove dust and debris for optimal efficiency. Additionally, occasional inspections to check for any damage or shading issues may be necessary. Overall, the maintenance requirements for solar panels are straightforward and manageable.
- Q: How do solar panels impact the electrical grid?
- Solar panels can have a positive impact on the electrical grid by generating clean and renewable energy. When connected to the grid, they can contribute to reducing the overall demand for electricity, especially during peak times. However, their intermittent nature and fluctuating output require grid operators to carefully manage the variability to ensure grid stability. Additionally, solar panels can decentralize power generation, leading to a more resilient grid and potentially reducing transmission losses.
- Q: Can solar panels be installed on desalination plants?
- Yes, solar panels can be installed on desalination plants.
- Q: 3.8 volts is required to fully charge a battery. But at 3.8 volts, the battery can be overcharged without the use of a controller correct? What if I don't care if the battery is fully charged? In the case of our family boat, I just installed a new radio, so I'm a little worried about power consumption. So now for the real question; If I hook a 2 volt panel to the batteries, do I need to worry about overcharging them? Or will the batteries stop the charging process once they reach 2 volt?I built the panel myself, it's 8 volts at 3.5 amps open circuit. I have tabs at every 3 volt increment on the panel so that I can use less voltage than 8 if I want to power something directly, (ex:2 volt radio)So I'm using the 2 volt tab at 3.5 amps(approx) for a total of approx 48 watts
- Batteries will not stop charging on their own. The will stop charging when the battery voltage equals the supply voltage. Solar panel open circuit voltage is typically around 20V. Batteries will just boil dry before reaching 20V. One rule of thumb, above 0W you need a controller for sure.
- Q: Are solar panels suitable for all types of roofs?
- No, solar panels may not be suitable for all types of roofs. The suitability of solar panels depends on factors such as the roof's orientation, pitch, shading, and structural integrity.
- Q: Can solar panels be installed on a small scale?
- Yes, solar panels can definitely be installed on a small scale. In fact, they are highly versatile and can be installed on rooftops, balconies, or even in small yards. The size and capacity of the solar panel system can be tailored according to the available space and energy requirements of the user. This makes solar panels a feasible and practical option for both residential and commercial settings, enabling individuals to generate their own clean and renewable energy.
- Q: Can solar panels be installed on a multi-story building?
- Yes, solar panels can be installed on a multi-story building.
- Q: Properties of solar panel?I know this is too general,but i am to write a report on the materials used to make solar panels,and i am to include the physical, mechanical ,and chemical properties of the materials.It's just too general,such that i am lost.There are so many types of solar panels.So i hope some experts on this subject can give me a general guide lines ,maybe the tensile strength ?as much as you can please.
- American scientists have developed a new coating, which allows the solar cells to cool on its own, without relying on costly cooling and ventilation. Coating increases the output power and prolong the life of solar batteries .
- Q: Can solar panels be used in areas with high levels of dust?
- Yes, solar panels can be used in areas with high levels of dust. However, it is important to note that the efficiency of solar panels may be affected by the accumulation of dust on their surface. Regular cleaning and maintenance can help mitigate any potential decrease in performance caused by dust build-up.
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Solar Panels for Home Roof - A Grade and B Grade 3BB and 4BB High Efficiency 19.7% Solar Cells
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 100000000 watt/month
OKorder Service Pledge
OKorder Financial Service
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