Poly Solar Panel, 250W, 255W High Efficiency

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Item specifice:

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

Product Description:

Poly Solar panel, solar module, 250W, 255W

Grid-connected photovoltaic power generation system is to photovoltaic systemsconnected to the public grid, achieve grid. Grid-connected PV systems can be divided into large and centralized and decentralized power generation systems and power generation systems small, two systems not require energy storage devices. Currently PV grid integration in the form of the building is a typical case of power generation.


1) Product name: solar panel / module

2) Solar cell: Mono-crystalline / Poly-crystalline / Amorphous

3) Tempered glass laminated with aluminum frame

4) Life time: 20 - 25 years

5) Temperature co-efficiency:  A=+1,46mA B=-79mV, Rp/p=-0.43

6) Power specification at 1kW/m 2, AM 1, 5

7) Output cable: multi contact connectors

8) Construction:

     a) Front: High-transmission 32mm tempered glass

     b) Back: TPT

     c) Encapsulant: EVA

9) Frame: aluminum

10) Certification: CE, TUV

Size and Number of cells156mm×156mm 60(6×10pcs)
Maximum power230Wp235Wp240Wp
Open circuit voltage(Voc)36.00V36.00V36.00V
Short circuit current(Isc)8.59A8.77A8.96A
Maximum power voltage(Vmp)30.00V30.00V30.00V
Maximum power current(Imp)7.67A7.83A8.00A
Model size(mm)1650×991×40MM
Operating Temperature-40°Cto+85°C
Resistances227g Steel Ball Fall Down From 1M Height and 60M/S Wind
WarrantyPm is not less than 90% in 10 years and 80% in 25 years


There're 7 major inspection procedures for Each piece solar panel during production : 

3 times EL testing to ensure panel without micro-break/invisible break(normal manufacturer only test 1 or 2 times); 

3 times appearance inspection to ensure panel without defect (normal manufacturer only inspect 1 or 2 times); 

1 time power testing, power inspection tolerance +/-0.1watt(normal manufacturer's power inspection tolerance is +/- 1-2watt), we ensure each panel has enough power output; 

besides the standard inspection, each production procedure will inspect the upwards procedure;

So we guarantee each piece of our panel has perfect appearance, positive power performance, and without quality hidden trouble.

Manufacture pictures:

Poly Solar Panel, 250W, 255W High Efficiency

Poly Solar Panel, 250W, 255W High Efficiency

Poly Solar Panel, 250W, 255W High Efficiency

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Q:Sankey Diagram for a Solar Panel?? HELP!!?
Not very helpful for my needs. I presume you work for one of the mega rich electrical companies. You must be a fun person to share adrink with. I ll provide the drink. At the witches bar. Hemlock i think. .................
Q:Solar panels on the roof?
Sure. You may be able to get a tax credit for installing, but independently verify what the solar panel guys tell you. And check with the electric utility to see if they actually will buy back any excess electricity you might generate. Solar panels are not cheap so they make the most sense if you plan to stay in the house a long time or think it will enhance the resale value enough to make it worthwhile.
Q:Do solar panels plug into an outlet?
They are powered by the sun. You set them up out side of the house or on the roof and the sunlight shines on them through out the day. It stores the energy into light so when you turn on a light it is from the sun's energy. Plus it can save you on electric bills.
Sure they work, photovoltaics. Light goes in, electricity goes out. Is it a good idea? Well. See, they're expensive. You probably need several kilowatts of capacity to run your house for one thing, and that's going to require several thousands of dollars worth of panels. And electricity doesn't cost that much. You can figure out how long it would take you to make the expense back. It would be a while. It would take even longer if you wanted to spring for a system that could take you completely off the grid, that would require banks of deep cycle batteries too. But most people are probably fine with a system that ties into the grid, and depending on who your utility is you may be able to sell surplus power back to them. Expense is the main reason I think you don't see a huge number of people adopting photovoltaics yet. Doesn't explain why solar heating isn't more popular though. That's really cheap and practical by comparison. But yeah you can find the photovoltaic panels for sale all over the place. Google it. Yeah the going rate for panels is around 2 bucks a watt.
Q:Making a Charger out of small solar panels?
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:SOLAR PANELS (sun enerjy)?
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:Are our scientists making solar panels all wrong??
There are two basic types of solar panels. ) Thermal absorbers 2) Photovoltaics Thermal absorbers are black in order to convert sunlight to thermal (heat) energy. The whole idea is to capture all of the light with a dark surface, convert it to thermal energy and transfer the energy into your home for water heating or space heating. If you make the surface white or reflective, then the surface will absorb only a small fraction of the available light, hence the efficiency will be very low. In other words, the panel will not produce any heat. Photovoltaic panels produce electricity instead of heat energy. Photovoltaic panels are made from thin slices (“waffers”) of silicon with special coatings on the front and back surface. One of these coatings on the front is an antireflection coating to capture the light and channel it toward the silicon. Underneath the antireflection coating the silicon waffer is coated with other chemicals that convert the sunlight to electricity. The combination of these coatings gives the panel a dark color, usually blue or black. Here's the bottom line. If you want thermal heat or electricity from solar panels, the panels have to capture the light. When that light is captured, the surface appears dark because no light (or very little) light is reflected back to our eyes. It is not possible for a surface to be an efficient absorber, capturing all available light, and at the same time appear white or bright color or reflective to our eyes.
Q:Wiring in solar panels?
I okorder.com Hope this helps.
Q:How much energy does this particular solar panel produce?
Some great answers 23 max watts is per hour I live in an area that has 5.5 average sun hours per the solar insolation data which would give me a base of 676 watts produced per day for one panel. That 23 watts is most likely STC or standard test conditions which is far from standard it is ideal 70 degrees Farenheit with a 000 set flash PTC or physical test conditions are not always on labels and are not always accurate because of varied conditions. Heat has a huge factor on PV production. The panels should be derated by for the following reason ampacity correction or line loss Temperature correction PTC correction Inverter loss these corrections account for about 5 % on standard panels Our 676 watts per day has been dropped to 574 watts per day per panel Lets start with the light bulb. a standard 60 watt bulb uses 60 watts per hour. With the one panel we have chosen it would produce 5 hours and 45 minutes of illumination If we switch to a 5w CFL we get 38 and one half hours of illumination quite a difference yes Central Air will use about 2000 to 2500 watts per hour.This rule is not hard and fast as units will vary as well as conditions Lets use 2000 per hour times 8 hours of use is 6,000 watts we need 28 panels just for the ac. Probably another 28 for the rest of the house Of course these panel must be true south at 5 degrees mounted With a years worth of electric bills and a site visit I could come allot closer but lets say you need 60 of these panels this system would provide 973kHw per month at my location of 5.5 sun hours per day This would be a grid tied system as most state rebates require a grid tied system to qualify for rebates
Q:How long does it typically take for solar panels to pay for themselves?
Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!

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