Poly Solar Panel 280W B Grade with Cheapest Price

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
100 watt
Supply Capability:
10000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 280 Number of Cells(pieces): 60

Product Description:

Poly Solar Panel 280W B Grade with Cheapest Price


Product description

 a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Solar cells are the building blocks of photovoltaic modules, otherwise known as solar panels.

he photovoltaic effect was experimentally demonstrated first by French physicist Edmond Becquerel. In 1839, at age 19, he built the world's first photovoltaic cell in his father's laboratory. Willoughby Smith first described the "Effect of Light on Selenium during the passage of an Electric Current" in a 20 February 1873 issue of Nature. In 1883 Charles Fritts built the first solid state photovoltaic cell by coating the semiconductor selenium with a thin layer of gold to form the junctions; the device was only around 1% efficient.

Solar cells are described as being photovoltaic irrespective of whether the source is sunlight or an artificial light. They are used as a photodetector (for example infrared detectors), detecting light or other electromagnetic radiation near the visible range, or measuring light intensity.

Poly Solar Panel 280W B Grade with Cheapest Price



Application

Business

Home

Industry

Large project


Feature

1. A grade high efficiency solar cells. 
2.TUV/UL/CE/CEC etc
3.Fast shippment 
4.25 years warranty 

5.OEM/ODM


Packaging

28pcs into one carton


Shipping

Material in stock can be produced (procedure 5-20days) right away after pre-payment confirmation. COSCO Mearsk MSCship to worldwide for safe shipping, don't worry about package damage or loss. It takes about 15-40 days to worldwide, Please note us your contact details include your phone number for easy contacting from shipping company officer.


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Q:Why are solar panels so expensive?
The only way I know of is to invest the money in the stock market. Most savings accounts only pay 3% intrest. While stocks float and if you don't know what you are doing you will never make as much money as you could save on your electric bill. Then the fact that you have to pay the electric bill out of the money. In the end you rented electric and can never get your money back. You can always sell the solar electric system and get your money back plus a profit. Not many people live in the same house even 20 years so it will sell. Toss the coin. It is what ever is best for you.
Q:were can i buy decent solar panels?
From a decent solar panel store. Or you can get on the Internet and look for someone in your area.
Q:Any companies that have solar panels?
It okorder.com They will rent you a solar panel system. You will pay a flat monthly rental rate that would be locked in for up to 25 years. There's no installation cost, No system to purchase, No permit hassles, No Maintenance fees and a locked in rate for up to 25 years. Check it out. I think you would like it. You won't own the system but you will save money and help our environment in a huge way. Also by renting a system you save yourself from future advances in solar. Example Things are changing fast in the solar industry. If you go out and buy a system for $40000 today and next week comes around and you can get a cheaper, more effecient system you would still have to pay for the one sitting on your roof.
Q:Solar Panel and Wind Power?
Insolation, okorder.com okorder.com/... that are 420x420x25 mm so each unit is about .764 m3. If you used these to cover 500 sq ft then you would need (46.45/.764=) 263 of these panels at a cost of ($09.95 x 263=) about $28,953 plus wiring, plus brackets, plus an inverter, plus batteries, plus a battery management system and any labor or your time. Best of luck with it.
Q:Solar panel battery charging?
I agree, you should get a charge controller and install appropriate fuses.
Q:how much is one solar panel?
no one has answered because you asked a question that cannot be answered. It is exactly the same question as how much is a car?. Do you want a passive solar heating panel, a solar electric panel, .5 Volts, ,000,000 BTUs, do you want just the panel or the panel installed and functioning, or what? the answer is between $5 and $5,000,000.
Q:Are solar panels actually efficient?
Solar panels currently hook into the electric grid through a rectifier. If you were not into the grid, you would have a battery bank to use at night time. Wind works the same way, rectifier, and battery bank if you are not connected. There are communities in Europe that are wholly powered by solar now. There are computers that direct the panels into the direct sunlight for maximum efficiency. Look for them to be coming to your neighborhood soon.
Q:Can you get energy at night from solar panels?
Yes. okorder.com/) and informed me of all the incentives I was eligible to receive as well as giving me a break-even analysis, estimated annual savings, and projected return on investment. They are a great resource to begin your solar pursuit. Good Luck!
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:Can I plug a solar panel into a wall socket to lower my electric bill?
You can use a solar panel to heat water, and you can generate electricity, but you can't plug it into a wall socket. The most effective way to save on your energy bill is by heating water. Solar panels that produce electricity, don't store it. They produce it for that particular time, and if you're not there to use it, it's gone. Furthermore, the electricity isn't always regular, it may have peaks and shortages. The best way to tap into that, would be to sell the electricity you produce to the grid, and then buy it back when you use it.

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