255W Poly Solar Panel for Solar System Grid Tied or Off Grid

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 255 Number of Cells(pieces): 60

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Company Profile

CNBM International Corporation (CNBM International) is the most important trading platform of CNBM Group Corporation, a state-owned company under the direct supervision of State-owned Assets Supervision and Administration Commission of the State Council.

Since 2004, the trading volume of CNBM International has been doubled in 5 successive years owing to the support of superior corporations and effort of all staff. Meanwhile, we have established strategic partnerships with hundreds of domestic manufacturers and sound business relations with clients from over 120 countries. Currently, we have wholly-owned overseas subsidiaries and branches in 5 countries with a view to realize localization, which also represents an essential progress in our globalization target.

In line with the business, CNBM International launched E-business platform Okorder.com.

High Quality Solar Poly Panel 255W datasheet

Description of SpecificationUnitsModel
General Data
Nominal PowerW 255
Solar Cell
Cell Type
Number of Cells
Maximum PowerW 255
Watt Tolerance%+/-3
Voltage & Ampereage
Maximum System VoltageVolts 1000
Maximum Operating Voltage(Vmp)Volts 31.0
Maximum Operating Current(Imp)Amps 8.23
Open Circuit Voltage(Voc)Volts 37.6
Short Circuit Current(Isc)Amps 8.97
Operational Temperatures
Temp Coefficent of Isc(TK Isc)% per deg.C+0.045
Temp Coefficent of Voc(TK Voc)% per deg.C-0.33
Temp Coefficent of Pmax(TK Pmax)% per deg.C-0.45
Normal Op.Cell Temp (NOCT)deg.C45±2

Storage & Operating TemperatureDeg C-40 to +80
Standard Test Conditions
Materials & Accessories Data (All Certified by CE and TUV)
LengthM 0.9
Wire Diametermm2 4
Aluminum Anodzed
Low lron,High Transmisson,Toughness
EVA resinmm0.5
10 years%90
20 - 25 years%80
Whole PanelYears5


High Quality Solar Poly Panel 255W Drawing

255W Poly Solar Panel for Solar System Grid Tied or Off Grid

High Quality Solar Poly Panel 255W Stock Information

255W Poly Solar Panel for Solar System Grid Tied or Off Grid

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Q:Computation of Solar panel requirement?
The power output of a solar panel uses a formula to determine kilowatts produced per hour per square meter per day. This calculation is important because, if you plan to install a solar power system for your home, you will want to know how many solar panels will be needed. To calculate solar power requirements correctly, you need to gather the data that is needed for the calculation. First you have to find the average amount of solar radiation available for your area. You can use a solar radiation chart. This can range from a 4 to a 7 depending on the area you live in. Write the number down on a piece of paper and indicate it with the letters RA. Next is determine the amount of electricity that you use daily. Add the kilowatt-hours used per month from your utility bill. Multiply this number by ,000 to get the watt hours in a month. Divide the total by 30 for the amount of electricity you use daily. Write this number down and indicate it with the letters DE. Determine the percentage of your home that you want to power with the solar power system. Write this number down and indicate it with the letter P. Determine the system inefficiency factor for the solar power system. You should be able to find this on the brochure for the system or from the manufacturer's web site. Write this number down and indicate it by the letter I. Determine the power or yield that is required for your home. Use the equation P = I x (DE x P) / RA to find the power requirements in kWh. Divide the number from Step 5 by the peak wattage for a single solar panel to determine the number of panels you will need for your home. Goodluck! :)
Q:Maintenance of Solar Panel?
New solar panels are clean and shiny and they look cool. Then they get dirty with dust and debris caught on the wind and residues left behind by rain and birds. Solar panels must be regularly cleaned and maintained in order to keep them operating efficiently and maximize the amount of sunlight they convert into electricity. Unlike windows your solar system needs to have a clean and clear surface to ensure they are working at their maximum efficiency. If they are not at their optimum performance it means they are not producing the amount of electricity that they could be. Solar panels will attract dirt, dust, soot, pollen, tree sap and salt crystals in coastal regions creating a fine layer of grime. This layer reduces the amount of light reaching the silicon cells under the glass surface and reduces the panel's effectiveness. A solar panel that has never been cleaned could be producing almost a third less power than it otherwise could be. Some have reported a ten to fifteen percent loss of solar output due to dirty panels. From the ground the panels may appear to be clean, just like your windows. Up close however you can see the grime that has built up from the dirt and pollution in the air. A more noticeable deposit that can be left on panels is bird droppings. These tend to completely block the light from areas of the photovoltaic panel and can considerable reduce its effectiveness. See much more about solar panels maintenance below link
Q:how to make a solar panel?
How to Make a Solar Panel – Everything You are Going to Need There are several things you’re going to need when making a homemade solar panel, some of the main components include: Solar Cells Wood Plate Soldering Iron Solder Tabbing Don’t worry; special tools are not required for this DIY ‘solar panel’ project, and you will probably have everything you need laying around the garage. Now let’s go over the recommended materials for a basic solar system: Plexiglas Solar Cells Screws Lumber Jones Plug Wire Diode Caulk Silicon Material
Q:A more efficient solar panel?
yes it is being done. i've seen adds for such a system. on the other hand, if you had a 5 sq in Lens focused on a small cell, and a 5 sq in cell, they'd be about the same. in fact, the cell might be a bit better because (A) there wouldn't be any loss in the Lens, and (B) it might be that the solar cell would use some frequencies to which the Lens was opaque. in addition, the cost of solar cells is dropping, making the cost of the mirrors or lenses uneconomical by comparison.
Q:is it feasible to create a solar panel that could harness more of the suns energy than what they can now?
Of course,in fact I read somewhere that they are studying butterfly scales or something because they are better than man-made solar cells.Whether or not this book was lying I don't know.
Q:solar panel efficiency in space?
The mirrors might could desire to be on computerized monitoring gadgets so as that using fact the sunlight strikes it might keep the pondered sunlight on the panel with value of optical sensors and stepper automobiles and %s or laptop controllers then you definitely've the mirrors which destroy in hailstorms except you employ chrome metallic ones that in the process basic terms mirror 60% in assessment to 80% for glass To tutor what I say take a small hand mirror outdoors and prop it up so it reflects at one brick or spot on wall mark it or keep in mind it then wait or come lower back in 20 min see what proportion times it may be moved and how complicated the development of circulate
Q:What is a solar panel?
Solar panel is a battery of solar cells. Solar cell is a device which uses the sun's rays to produce electricity by the photovoltaic effect. The photovoltaic effect involves the creation of a voltage (or a corresponding electric current) in a material upon exposure to electromagnetic radiation. It utilizes the generation of a voltage when radiant energy falls on the boundary between dissimilar substances (as two different semiconductors).
Q:How to wire solar panels?
I'll add a few comments to Teelo's It may not be good to connect the assembled solar cells directly to the battery. When there is no sun I think it will drain the battery. I'm pretty sure all circuits I have seen have a reverse polarity diode in series. (unless Teelo knows for sure). Hmmm Reminds me that I have some bare solar cell elements from when Motorola was making them. I used some to power a small radio controlled car. I do know that all good applications have a regulator to make sure the charging is done properly
Q:how do solar photovoltaic panels work?
Hey E Girl, photovoltiac panels are pretty simple. They start with a solid block of silicone, and shave thin layers off of them, called wafers. Once you have about 72 of them, you take half of them and dope them with boron, then the other half are doped with phosphorous. Once that's done, they take one each phosphorous and boron wafer, and glue them together with a special conductive epoxy glue, and attach a wire to each wafer. When the two glued wafers are exposed to the sun, a reaction occurs that forces free electrons from the silicone particles from one wafer onto the other, and a voltage is generated between them, about /2 volt to be exact. Once all 36 pairs are glued together, they are wired in series, connecting the phosphourous wafer from one to the boron wafer on the next, and so on. If you start with 72 wafers, you'll have 36 pairs glued together when you are done. At /2 volt each, that makes a 8 volt panel, which is used to charge a 2 volt battery. The charging source always has to have a few more volts than the battery. These 36 pairs of cells are then arranged on some kind of back board, glued down, covered with acrylic glass and mounted in a frame. There are some great websites you can go to for more info, I will list some below. Did you know that there are over 00,000 homes and businesses in the US alone that use some level of solar power to operate their electrical systems? That's good news. We actually live in one of those homes, it is powered by both the wind and sun and heated with solar and wood. I hope this answers your question, good luck, and take care, Rudydoo
Q:how do i build a solar electric panel for my home?
Solar energy is very expensive. Or I should say, solar panels are expensive, because once you install them the power is free. A typical residential solar power system that supplies around a kilowatt of power at best conditions (noon, sunny day) will cost about $0,000. This includes the solar panel, the inverter (converts DC into AC), the cabling, but not installation (that would probably run you another $2000). One kilowatt is not that much electricity. It would run one microwave oven, or one hair dryer, or 0 light bulbs, and nothing else. Most houses use 3 times that at peak hours. So you would still likely get some power off the grid at peak time, and other times you can sell it back to make a little money. The good news is that solar panels are getting cheaper. They are around $5 per watt now, and are projected to drop to half that in the next decade. At some point, it will reach the sweet spot that makes solar an attractive alternative to grid power and more people will jump on board. There are some tax incentives too, but more would certainly help.

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