Cnet Solar Panels - Poly 72 Cells 270W Solar Panel with Efficiency of 17.6%
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 1000000 watt/month
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Specification
Material:
Polycrystalline Silicon
Max. Power(W):
270
Number of Cells(pieces):
72
Product Description
Poly 72 pcs 270W solar panel system with Efficiency >17.6%
Specifications for solar panel system:
| Type of cell | Poly |
| Maximum power (Wp) | 270W |
| Maximum power voltage (V) | 37V |
| Maximum power current (A) | 8A |
| Open circuit voltage (V) | 44.6V |
| Short circuit current (A) | 8.5A |
| Number of cells (Pcs) | 72 |
| Size of module (mm) | 1950*992*45 |
| Maximum system voltage (V) | 1000 |
| Temperature coefficients of Isc (%) | + 0.1/ °C |
| Temperature coefficients of Voc (%) | -0.38/ °C |
| Temperature coefficients of Pm (%) | -0.47/ °C |
| Tolerance Wattage (e.g. +/-3%) | +/-3% |
| Surface Maximum Load Capacity | 60m/s(200kg/sq.m) |
| Weight per piece (kg) | 23kgs |
| Junction Box Type | 4mm2, Length:1000mm, TUV,using irrigation methods sealing glue |
| Connectors and Cables Type | MC4 |
| Output Cables (mm) | φ=4mm², L=900mm |
| Cell Efficiency (%) | ≥17.6% |
| Output tolerance (%) | +/-3% |
| Frame (Material, Corners, etc.) | Aluminum |
| Front Glass | 3.2mm high transmission, Low Iron, Tempered Glass |
| Warranty | 10Years products warranty and 25 years 80% of power |
| Standard Test Conditions | AM1.5 1000mW/cm2 25°C |
| FF (%) | 72% |
| Operating temperature ºC | -40 °C ~+85 °C |
Packaging for solar panel system:
2pcs/carton, 180pcs/20GP or custom
Advantages for solar panel system:
1.Long Service Life can reach more than 25 years
2.High Efficiency Solar Cells
3.Special Aluminum Frame Design,
4.High Transmission, Low Iron Tempered Glass
5.Advanced Cell Encapsulation.
Solar Panel System Application:
1. Solar power station, field operation some huge engineer construction;
2. Living house and home building;
3. Office building, factory and warehouse;
4. other industrial and commercial applications.
- Q:Can solar panels be used in areas with high levels of noise or vibration?
- Yes, solar panels can be used in areas with high levels of noise or vibration. Solar panels are designed to withstand various environmental conditions, including noise and vibration. However, it is important to ensure that the mounting structure and installation are done properly to minimize any potential impact on the panels' performance.
- Q:I need a solar panel for my laptop as i am going camping in the desert, and i need my laptop. There are two choices of solar panels, One is 0 watts and 2 V and maximum power current 0.56 amps. The other one is 2 watts, 2 V and no mention of current. My laptop plug says input 00-240V and .5A and then output 5V-5A. Which one should i get for my laptop. If there are other choices please tell me ill look them up on OKorder.Thanks
- I'm afraid neither of these panels will do much for charging or running your laptop. If the power brick is supposed to emit 5 volts at 5 amps, that's 75 watts. Neither of those panels provides enough voltage and the power output is obviously far too small. The capabilities of solar power are vastly overestimated for small panels. Sunlight is limited to about kilowatt per square meter under ideal conditions (summer time, clear blue sky, for a few hours around noon in the US southwest). But consumer panels top out at about 5% efficiency, so your limit is 50 watts per square meter - in other words you would need about half a square meter, or about six square feet, of panel to provide 75 watts. And even under ideal conditions you will only get that much for a few hours each day. Also, the panel's voltage output is not regulated, so even if you find a panel that emits 5 volts (this would actually have to be made up of groups of 30 cells in series, as they emit half a volt each at most) you can't just connect the panel output into your laptop's DC in. You'd need a regulated DC-to-DC supply, and since that is not 00% efficient it will cost a bit of the power... now you need even more panel area. All in all, not really a practical thing to carry along on a camping trip.
- Q:By best I mean safest places. If I were to install them on my roof am I risking due to damage from weathering? Such as rain or snow. I don't get very high winds around here, nor any natural disasters such as hurricanes or tornadoes. Does anyone have solar panels that have been durable for a long time? Is it worth the investment?
- Photovoltaic panels are designed to be put on a roof, exposed (obviously) to sun, but also rain, snow, and wind. Generally, there is even a rating for something like hail. A good mounting system will be stronger than the underlying roof, so will withstand most anything short of a direct hit by a tornado or hurricane. There are a few panels from the 70's (that's the 970's) still in operation, I believe. They look horrible, but are still producing a little electricity. Since then, housings have improved, and panels generally have a 25-year warranty today (some cheap ones are 20-year warranty).
- Q:How do solar panels and heaters work?
- Guide okorder /
- Q:China is the world's biggest producer of solar panels
- China is also the world leader in using solar panels. Most solar panels in the US are not from China. There are several companies here in the US that make solar panels, and many states do increase the tax rebate for buying local products. Most flat plate water heating panels installed in the USA are made in the USA. Wouldn't it be nice to get people to buy more sustainable energy products and increase manufacturing jobs in the US, while actually improving the air quality and reducing our dependence on foreign oil? Oh, and perhaps we could get the money by cutting the amount of taxpayer funds subsidizing the oil and coal industries?
- Q:Pls is it ok to connect a 0watt and 20watt solar panel together into a charge controller port, can i just tie the wires together and run into the controller?? Will damage anything...Thanks guys
- Tobi, generally yes, solar panels are like beer, all the europeans get along fine, you can put two Belgiums in the same room as one German and three Englishman. As long as the panels have roughly the same open circuit voltage, usually around 8 volts, then go for it. If you're not sure about this, or the panels voltage disagrees dramatically, then they can still work through the same charge controller, the only other thing you need is a bypass diode in the junction box on the back of each panel. Most modern panels come with these already installed. They are simply electrical check valves, allowing current flow in one direction but not the other. The reason these matter is when the sun is first coming up, the higher voltage panel can force its power backwards through the lower voltage panel, at least until they both reach a voltage higher than the charge controller is set at. This is not a desirable thing to have happen, the 20 watt panel, if its voltage is higher, can damage the 0 watt panel without these diodes if the 20 watt has a much higher open circuit voltage, or Vmax. Look on the back of the panel for these ratings. The only other concern is maximum current. A charge controller has a maximum current it can handle, they are generally model numbered this way, a Xantrex C-60 for example has a 60 amp rating. Add up the Imax numbers on the back of all your panels, this is the maximum amperage the panel should put out. As long as it is not above 80% of your charger controllers maximum amperage, your good. Take care, Rudydoo
- Q:I have a question about solar panels. What are the benefits of this system if I installed in my home. for example i know it produces electricity but does it do anything else? How many panel would you guys think I would need for 2000 sq ft. do you know if it produces hot water? Thanks for your help
- Solar panels have been expensive, and not $00,000 about 30 to 50. There are new technologies that are just coming on line which supposedly reduce that for the same output by /2 to 2/3's which will, when these become widely available finally become practical, with tax breaks and incentives for the majority of people, either in their homes or businesses. I believe there are some panels that position the panels in such a way that you can buy a hot water collector under the photovoltaics and will produce hot water as well.
- Q:Can solar panels be used off-grid?
- Yes, solar panels can be used off-grid. Off-grid solar systems are designed to generate and store electricity in batteries for use in locations without access to a utility power grid. This allows for self-sufficiency and independence from traditional power sources.
- Q:I have two solar panels and I have measured that they produce V by themselves. I am trying to generate .5V, but whenever I hook them up in parallel I get something like .02V. What it happening?
- Build okorder /
- Q:Can solar panels be used in developing countries?
- Yes, solar panels can definitely be used in developing countries. In fact, they are increasingly being adopted as a sustainable and affordable source of energy in many developing nations. Solar power offers numerous benefits such as reducing reliance on expensive fossil fuels, providing electricity to remote areas without access to the grid, and promoting economic growth by creating job opportunities in the renewable energy sector. Additionally, solar panels can be easily installed and maintained, making them a viable solution for powering homes, schools, healthcare facilities, and other essential infrastructure in developing countries.
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Cnet Solar Panels - Poly 72 Cells 270W Solar Panel with Efficiency of 17.6%
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10000 watt
- Supply Capability:
- 1000000 watt/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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