Poly Solar Panel 290W A Grade with Cheapest Price

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Shanghai
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100 watt
Supply Capability:
50000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 290 Number of Cells(pieces): 72

Product Description:

Poly Solar Panel 290W A Grade with Cheapest Price


Product description


60 cell multi-crystalline solar module. 40mm natural anodised frame. IP65 rated Jbox, 1m solar cable and a pair of MC4 connectors.TÜV SÜD,SABS ISO 9001:2008 certified.

Nominal voltage refers to the voltage of the battery that the module is best suited to charge; this is a leftover term from the days when solar modules were only used to charge batteries. The actual voltage output of the module changes as lighting, temperature and load conditions change, so there is never one specific voltage at which the module operates. Nominal voltage allows users, at a glance, to make sure the module is compatible with a given system.

Open circuit voltage or VOC is the maximum voltage that the module can produce when not connected to an electrical circuit or system. VOC can be measured with a meter directly on an illuminated module's terminals or on its disconnected cable.

Solar panel conversion efficiency, typically in the 20 percent range, is reduced by dust, grime, pollen, and other particulates that accumulate on the solar panel. "A dirty solar panel can reduce its power capabilities by up to 30 percent in high dust/pollen or desert areas", says Seamus Curran, associate professor of physics at the University of Houston and director of the Institute for NanoEnergy, which specializes in the design, engineering, and assembly of nanostructures.[16]




Poly Solar Panel 290W A Grade with Cheapest Price

Application

Industrial

Commercial

Residential


Product feather

solar panel refers to a panel designed to absorb the sun's rays as a source of energy for generating electricity or heating.

A photovoltaic (in short PV) module is a packaged, connected assembly of typically 6×10 solar cells. Solar Photovoltaic panels constitute the solar array of a photovoltaic system that generates and supplies solar electricityin commercial and residential applications. Each module is rated by its DC output power under standard test conditions, and typically ranges from 100 to 365 watts. The efficiency of a module determines the area of a module given the same rated output – an 8% efficient 230 watt module will have twice the area of a 16% efficient 230 watt module. There are a few solar panels available that are exceeding 19% efficiency. A single solar module can produce only a limited amount of power; most installations contain multiple modules. A photovoltaic system typically includes a panel or an array of solar modules, a solar inverter, and sometimes a battery and/or solar tracker and interconnection wiring.


Packaging

24-26pcs into carton 312pcs for 20 foot container 712pcs for 40 foot container.


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Q:Solar Panels, anyone?
Unless you live in an area with a very high UV index, like Las Vegas for example, solar panels are not cost-effective. You definatly should not attempt to install solar power yourself if you intend to power a residence with it (unless you live in a shack). A certified electrician is required in order to connect your equipment to your house's electrical system. It isnt just as simple as a few panels. You need a converter that turns the DC voltage generated into AC. You also need equipment to connect to the metering system for your house. If you want to see if it is cost effective, you will need your electric bills that show usage for a year and the price per kWH. There are a lot of websites that have calculators for solar power systems.
Q:Solar Panels question?
I asked my dad to buy solar panels few years ago and after discovering the prices, i got WHY DO YOU NEED SOLAR PANELS Now i earn myself and hence bought these panels. Hope You don't get that. So do a thing. Go to nearby government office and ask for details for rebate on buying solar equipment and go accordingly. Do some extra work and earn money. In this way you will be light on your dad's pocket and even help in saving the planet.
Q:how to build solar panels?
At first, you will need about one square foot of thin copper plate, two alligator clips and short leads of wire, a wide mouth glass jar, tap water and salt. Cheers,
Q:Need Help, 2v Solar Panel for Emergency?
You will need a charger controller, a 2 volt battery and a inverter to convert the 2volt dc to 20 volt ac. Your also going to need about 0 more solar panels of the same size!
Q:Will a 3w Solar Panel Charge A 55ah Car Battery?
To charge a 2V lead acid battery, you pretty much have to put almost 24V across it and it's only 50% efficient at charging so if your solar panel does put out 3W, you can expect 3/24/2 or /6th of an amp in usable charging. Therefore, from a flat battery, it would take 55*6 or 880 hours to charge the battery. If you assume about 6 hours of usable sunlight per day, that would be 47 days not taking into consideration the normal leakage that lead acid batteries have. It's quite likely that the leakage rate will be greater than the charging rate and the battery will never charge. You'll need a bigger solar panel.
Q:How do you connect a solar panel to a motor from an RC car?
Connecting them is not a problem: the solar cell has two leads or terminals, and so does the motor. The problem is that the panel from the calculator cannot supply very much current, and you need quite a bit for the motor. Also, the voltage is probably not more than 3 volts, and the motor needs probably six to twelve volts. If you have a voltmeter, check the output from the solar cell. You can get solar cells that will put out more current, but they will be bigger than the ones used for calculators. Even with these, you will probably need several in series to get enough voltage for the motor.
Q:best value solar pv panel ?
If powering a PC is your only goal, consider replacing the power supply in your PC with one that runs off native 2 volts (like the kind intended for RV's). Then you can avoid the 30% loss of energy in a cheap inverter.
Q:solar panels and electrocution?
Q:How many volts does a small solar panel on a calculator produce?
Wrong forum
Q:Why should I use solar panels?
If you're asking from an individual standpoint, I'd say it's an individual decision, and no, it's not necessary, any more than it's necessary to buy milk at Costco instead of 7-. If an individual is facing the tradeoff of paying rent or eating, solar panels won't even make the list. On the other hand, if one has money, the best time to buy just about anything is when the economy is bad, because then prices are low, competition is fierce, and installers are hungry for work. If your question is more, why should we as a society use solar panels, that's forward looking. Why didn't GM design and agressively market a Prius-like hybrid 0 years ago? Looking back, they should have.

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