Ec Solar Panels Polycrystalline 270-310w Solar Panel System with 17.6% and Above Efficiency
- 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):
310
Number of Cells(pieces):
72
Product Description
Specifications:
| Type of cell | Poly |
| Maximum power (Wp) | 270-310W |
| 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:
2pcs/carton, 180pcs/20GP
Advantages
1.Long Service Life
2.High Efficiency Solar Cells
3.Special Aluminum Frame Design
4.High Transmission, Low Iron Tempered Glass
5.Advanced Cell Encapsulation
Solar Panel 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: Hey guys :)Well I'm in the middle of doing my PSHCE coursework on sustainable energy, focusing on solar panels. I just wanted to ask you what your opinions are of them? Are they really worth it? Are they sustainable? Will they reduce our energy bills? Those sort of questions :)If you are interested in installing solar panels, please mention that, as it would be great! There's lots of information about them on this site ----
- I have a boat in a sunny place and four 80 watt panels. These will run my fridge Tv and a few LED's. I still have to run my engine for hot water and washing machine. My Batteries only last a few years and are a real pain. I go on the mains when I can to get the batteries topped up. The panels are ok if there is nothing else, they are not the answer to the future of energy supply. There is also the moral aspect of the feed in tariff. For the rich to load their electricity bill onto the less well off is not acceptable and those panels on the roof tell all your neighbors that you are doing it. That will show a greedy selfish attitude. If they are any good why don't the power companies buy them and save buying coal?
- Q: I'm just geting into electonics and stuff. So I am trying to make a simple USB charger. I'm looking for at least 4 volts output. What I've got is two solar panels (detached) a 4 AA battery holder, and a circuit board with an led on it (took the solar panels out of old lawn lights. I need more charge out of my panels (I think) so I tried attaching them. I soldered the positive wire from one to the positive connection on the other and negative wire to negative connection. After doing so and checking the multimeter, it says I have no output at all. How do you connect them?
- You will need to wire several cells in series to obtain the necessary voltage, and you may need to wire several sets in parallel to obtain the required current. Series: Connect the + lead of one cell to the - lead of the next. You may chain any number of these together this way, and the output voltage will be the sum of the output voltages of each cell. The output current will be the greatest current of each individual cell. Parallel: Connect the + leads of each cell together, and the minus leads of each cell together. The output current will be the sum of the output currents of each cell. The Output voltage will be the greatest voltage of each individual cell. Picture this: think of the series cells as a column, connected from top to bottom. Think of the parallel cells as a row, with all the tops connected together and all the bottoms connected together. To arrive at the required voltage *and* current, you will need an array of cells, in rows and columns. The voltage will be the sum of each column, while the current will be the sum of each row. Most solar panels are arrays of individual cells. The arrays are then connected in the same fashion to provide the necessary combination of voltage and current.
- Q: My electric bill per month averages 800 kWh per month. I am looking at 65W solar panels. How many panels would I need to make my bill come to zero? I realize I also need an inverter to convert dc to ac.
- There is always a lot of confusion on this question so I built a webpage to show people how to do the math and pick the right system size. Most all public utilities will trade you kWh for kWh and then either settle up with you at the end of the month or every 2 months. So one week you might have all rainy days but the next 3 weeks you have 0 hours of bright sun even in the winter. This means you have no need to put batteries on your system unless you have a lot of power outages. Then you only need a few hours of battery backup power. At most 24 hours.
- Q: Do solar panels require regular inspections?
- Yes, solar panels do require regular inspections to ensure optimal performance and identify any potential issues or maintenance needs.
- Q: Can solar panels work in the shade?
- For the best answers, search on this site https://shorturl.im/axO4z Yes you are correct. The internal resistance of a solar cell increases at reduced light levels. This means that an increased proportion of the the power produced by the other solar cells will be wasted (slightly heating the shaded solar cell through ohmic heating). This happens to some degree even when the cells are all fully illuminated. Waisting power this way can be avoided by connecting the cells in parallel.
- Q: I'm going to this camp and the instructors asked us to be prepared tomorrow to build a sun tracker for a solar panel. Does any one have any ideas, tips, or advice?
- Since the sun moves in the sky on a very predicatable course you don't need a closed loop control system to track it. All you need is a clock-drive motor and the proper gearing for your latitude. The clock drive motor will move at a constant rotational velocity based on time, and when it is geared down properly the angle of the shaft will follow the sun. Make sure the clock motor is powerful enough to move the solar panel, etc. That's a start, anyway. .
- Q: How do solar panels generate electricity?
- Solar panels generate electricity through the photovoltaic effect. When sunlight hits the solar cells within the panels, the photons from the sunlight excite the electrons in the cells, causing them to move and create an electric current. This current is then captured and converted into usable electricity for various applications.
- Q: I need to know where I can buy the parts or find them as scrap to make my own solar panels. Is there a cheap way of buying the panels or can I make them myself.
- You can buy a box broken cells and solder them together and save big bucks.
- Q: That one costs money but looks like it might work. I don't really have the money for it but if it works then it would probably be worth it. Do homemade solar panels really work or is it just a gimmick? I'm really interested to see if anyone has actually tried this and to see what they say about it.Thanks
- Yes there are plans and testimonials all over the internet and dozens of vids on youtube for homemade panels
- Q: Can anyone give me some info on how to figure how many panels needed for a 0 volt 2 amp pool motor. Thanks/ Run 5 hours a day
- You okorder /
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Ec Solar Panels Polycrystalline 270-310w Solar Panel System with 17.6% and Above Efficiency
- 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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