Poly Solar Panel, Solar Module, 250W, 255W

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364 pc
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30000 pc/month

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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.


Features:

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


ADVANTAGES:

We produce solar cell by ourself with full automated production line, equipments were imported from USA, Germany and italy;

We provide 15 years warranty, and 25 years working life;

We have full set quality certificates, product meets quality requirement of USA, Europe, Australia, UK etc ;

70% of our product exported to Europe, without quality claims up to now;


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, Solar Module, 250W, 255W


Poly Solar Panel, Solar Module, 250W, 255W


Poly Solar Panel, Solar Module, 250W, 255W





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Q:Solar panel angle question..?
2.20 approximatey (2 /4 -- ish) X = (tan7)(8/tan45)
Q:How will i construct solar panel?
For powering a something that works on DC, like a gate opener, Elaine is right, and in some cases only ONE bigger cell is sufficient due to battery storage; however if the appliance is 20v AC, then an inverter is needed also. MOST of Elaine's answer is good, but a few corrections are needed: Plywood - use EXTERIOR grade only, and even then it can warp; chipboard or waferboard is preferable as it does NOT warp, BUT is not available most places in 3/8, /2 nominal, (5/32) is usually the thinnest available, and it is heavier than plywood. DO NOT use particle board. Superglue - NO, it dries too fast to be useful, in most cases. Wires - For a single cell OK, but for larger panels the best wire is tabbing wire, (which is flat,) which is available from all commercial solar cell dealers. Be very careful soldering this to the cells, as unless you buy the expensive flexible cells, they are easily damaged; I suggest also getting flux pens with liquid flux. Diode - Necessary, but needs to be large enough to handle voltage and current. Usually 25v and 5-30 amps,, one per panel. Plexiglas - OK, but NOT as long lasting as glass; best glass is the special solar glass which is designed to pass almost all of the proper light frequencies, but IS expensive, and usually needs to be specially ordered since most glass stores do not stock it. Double panes work well with the outer pane glass and the inner plexiglas, (to protect the cell if glass broken,) IF where might get damage, such as 'ground' mounting. AND Frame kits are available for larger panels, but IF you make your own, a good table router is a great advantage. Inverter - IF used for 20v AC appliances you MUST have an inverter capable of handling the load, and the best ones are modified sine, or true sine, wave types, and even the best are less than 50% efficient. Note that they will last longer if NOT used at more than 2/3 capacity.
Q:What is the best solar panel?
your initial outlay for a solar panel is very large in terms of output.......somewhere around $4 a watt......ie you want a panel that will run a 00 watt lightbulb? $400.00 please. enough panels to collect enough energy to recharge a battery bank to run the house overnight? well, I've been doing a lot of research for my condo project in St Thomas and it comes out to 0-20,000 US $ for a bedroom apartment. Now, after about ten years you have made your investemnt back.... and there are a lot of government rebate programs that lower the cost.. what I have found is solar is nice, but depending on how far north you live you may only have 4 usable hours of light a day. you may very well be better with a wind generator.wind blows all the time after all...Bergy and SouthWest Windpower make two good small home units...start there
Q:With everyone thinking green...how green are solar panels?
No matter how electricity is generated you must use materials to build the plant. I don't know what my panels are made out of, and I don't know if they can be recycled. I also don't know what my other electric plant was made of or if it can be recycled. I do know now that it has been made and installed I'm not using coal or oil to make electricity, I'm not creating any emissions, and I won't have to worry about how high the cost of electricity goes.
Q:How much is the average solar panel?
Completely self-efficient and autonomous??? Forget it. Too expensive. It's only worth if you use like 8 lights (2-20w) about 4 hours a day, a fridge, a tv about 4 hours/day and basically nothing else or a few low consume stuff. Forget about microwaves, dryers, or other stuff. Too much watts. And that would cost you no less than 5000-6000$. You need panels (about 4 or 6 20w would suit maybe), 2 batteries (about 600Ah at least), inverter(500w/24v) and a regulator, lets say a 30A one. Just stick to normal energy supply. A single 20w panel may cost about 750$ at least.
Q:help understanding solar panel stuff?
Solar panels turn sunlight into direct current electricity usually at 2, 24, or 36v. You could probably have a very simple system with just a panel and a few dc fans assuming that: the panels never put out more power than the fans can handle, you don't mind the fans slowing and stopping when the sunlight fades. If you want the fans running more of the time, you will need the panel hooked to a charger that charges a car/marine type battery and the fans connected to the battery. The longer the wires, the thicker they need to be (and more expensive). If you want to use AC (alternating current like your house uses) you will need an inverter (which turns DC into AC). Each device and each section of wire loses power due to inefficiency (heat produced). Contact a solar company on line, in person, or learn more.
Q:can a l.e.d light power a solar panel?
Yes, shining light from a visible-light LED on a solar panel will cause the solar panel to generate electricity. There is a long-wavelength cutoff (probably in the near infrared) where photons from an infrared LED would not have sufficient energy per photon to excite the solar panel, no matter how bright the LED was. Of course the amount of electricity produced is a fraction of the power needed to power the LED. The best possible efficiency you could achieve under optimal conditions is about 30%. The typical optical power output of a single LED is around 0.3 Watt. The density of sunlight is such that the amount of sunlight falling on a 2 x .5 area perpendicular to the Sun's rays is about .3 Watts. So maybe you'd want a few LEDs, or a particularly bright LED to simulate sunlight. But you'll get something with one LED. A bright LED flashlight would work.
Q:How much do solar energy panels cost?
I co own Sunpower Solutions. We are a solar company in South Jersey. I can tell you that the average cost for a system under 7Kw, is $7.95 per watt. What people fail to realize, is that there is a lot more that goes into a PV system than just panels. Racking, hardware, combiner box, inverters, labor to put the panels up, pay the electrician that ties it all together, the architect that measures the wind load on the panels, etc. It's not cheap. Although, in the state of NJ, the the amount of time it takes for the system paying for itself, is 4 years. It doesn't matter if it's a huge system or the smallest PV system, it's 4 years. Any questions, just ask. @Martin: The thing with those programs, is that the company that is leasing the system, is taking advantage of the renewable energy credit that the system is producing. Yes you get cheap electricity, but you are not taking advantage of the money making ability of the renewable energy credits.
Q:Maintenance for solar panels....?
All panels should be cleaned to function best. Brush or wash off dirt and leaves. They should be checked for structural integrity and lack of rust. Solar Thermal panels should be checked for signs of leaks and/or discharge from pressure relief valves. Solar Photovoltaic should be checked for electrical function and grounding.
Q:information on solar panels?
most times yes.

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