Cheap Solar Panels:A Grade and B Grade 3BB and 4BB High Efficiency 20.1% Solar Cells
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 100000000 watt/month
OKorder Service Pledge
OKorder Financial Service
You Might Also Like
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: I have a playstation PSP charger that is 5v 2A, so it takes 0 watts.I have several small solar panels that put out watt a piece and are 4 volts, 250mAhow can I get my 0 watts to be 5v 2A instead of 4v 250mA? the voltages have to match up right?also, what's a 3-T regulator that controls voltage?
- The first item is whether the psp charger output is ac or dc. IF, AC then you are stuck as the panels put out DC. (Increasing the voltage enough to cover invertor losses is not practical in this instance!) IF DC, then you need to combine panels to produce 2 Amps, after which it is run through the 3 terminal VOLTAGE regulator to limit the voltage to 5v. That is 8 panels in parallel in 2 groups placed in series = 2amps at 8 volts, then add regulator for 2 amps at 5v. (Parallel increases amps, series increases volts.) Total panels required is 6 panels.
- Q: I am fairly new to the solar panel scene, and am eager to try to set one up myself instead of buying a kit. I am looking for a solar panel that puts out 00 Watts or more, and can produce more than 20 volts. Thanks
- a cheap one that doesn't burn up
- Q: How do solar panels affect roof maintenance?
- Solar panels can have both positive and negative effects on roof maintenance. On one hand, solar panels provide an additional layer of protection to the roof, shielding it from elements like rain, snow, and UV rays, which can extend its lifespan. On the other hand, regular maintenance of the solar panels themselves, such as cleaning and inspection, may require occasional removal or adjustments, which could potentially impact the roof. Overall, proper installation and regular maintenance of both the solar panels and the roof are crucial to ensure their optimal performance and longevity.
- Q: Where can I find the info (sites) that clearly gives the anatomy of a solar panel?Likewise, I want to know where can I find (sites) the solar panel that produces 3.75 v? Thank you very much!!!
- You've probably seen calculators that have solar cells -- calculators that never need batteries, and in some cases don't even have an off button. As long as you have enough light, they seem to work forever. You may have seen larger solar panels -- on emergency road signs or call boxes, on buoys, even in parking lots to power lights. Although these larger panels aren't as common as solar powered calculators, they're out there, and not that hard to spot if you know where to look. There are solar cell arrays on satellites, where they are used to power the electrical systems. You have probably also been hearing about the solar revolution for the last 20 years -- the idea that one day we will all use free electricity from the sun. This is a seductive promise: On a bright, sunny day, the sun shines approximately ,000 watts of energy per square meter of the planet's surface, and if we could collect all of that energy we could easily power our homes and offices for free.
- Q: Are there any safety precautions to consider when installing solar panels?
- Yes, there are several safety precautions to consider when installing solar panels. Firstly, it is important to work with a licensed and experienced professional who is trained in solar panel installation to ensure proper installation and minimize the risk of accidents. Additionally, it is crucial to turn off all electrical power and follow proper electrical safety procedures before installing solar panels. Adequate fall protection measures should be in place, especially when working on rooftops or elevated areas. It is also important to consider the weight and structural integrity of the roof to ensure it can support the panels. Lastly, proper grounding and wiring techniques should be followed to prevent electrical hazards.
- Q: How do solar panels affect roof warranty?
- Solar panels can potentially affect roof warranties because their installation requires drilling holes in the roof, which can compromise its integrity. However, many solar companies offer warranties that cover any damages caused by the installation process, ensuring that the roof warranty remains intact. It is important to check with both the solar company and the roofing manufacturer to understand the impact of solar panels on the roof warranty.
- Q: I have a building company in UK and am interested in becoming a solar panel installation contractor
- Every single solar system will have to be put on every roof by people. Of course much of the processes used installation are designed to be as pain free and trouble free (and therefore as inexpensive) as possible but in a typical British street of semi detached houses built in the 930s you could find as many different plumbing and heating systems as there are houses, so you will never be able to remove the human installation element.
- Q: My dad owns a restaurant, and we are doing farely well, but we were thinking on installing solar panels to minimize electricity costs (and of course make it greener). My dad would like to hear some numbers on the price in today (August 29/202) and savings he could possibly make over the years. So In Total Here's What I'm Asking:) Would it be hard to install?2) Maintanence?3) Monthly Expense? (None?)4) Price?5) Savings over time?6) Pros/ConsThank you so much!
- To begin with, you need to know how much power you need and then decide from there just how much you can or will have to pay to get that money back. Find a couple companies that do this kind of work to give you some figures to work with
- Q: I am learning all about heat radiation in Physics. There is a question I am doing about Solar panels. It asks, why do glass covers improve the efficient of solar panels? I dont really understand. How do they?? thanks :D x
- Clear glass will allow most of the electromagnetic energy of sunlight into the air-tight volume of the solar panel. The light strikes the black coated metal tubes and the black coated backing, and is absorbed as heat. Part of this heat will radiate as infrared radiation, and much of this will leave through the glass. But a great deal of it will initially remain in the metal as heat. This heat will be partially transferred to the surrounding air, but because the glass stops the mixing of this air with the rest of the atmosphere, this heat will stay mostly contained within the solar panel. If the glass were not there, there would be a huge loss of heat into the surrounding air.
- Q: Hello,What do you all think about the future of solar panels and what role they will play in the near future. There is tons of money being dumped into the industry and demand is slowly rising. Also do you have any favorite solar links to get more info about them?
- Well, it's true that solar panels aren't exactly the new invention. However, solar technologies keep improving all the time. Just like computers used to be super rare and hard to get, but right now almost everyone has a PC or a laptop. Same with solar panels, soon they will get a lot more popular. Even people like Bill Gates are interested in solar solutions, here, take a look:
Send your message to us
Cheap Solar Panels:A Grade and B Grade 3BB and 4BB High Efficiency 20.1% Solar Cells
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 100000000 watt/month
OKorder Service Pledge
OKorder Financial Service
Similar products
Hot products
Hot Searches
Related keywords
