Solar Crystalline panels for rooftop systems with low price

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Characteristics of Polycrystalline Solar Panel

I Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.

II Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

III EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

IV  AI frame: Without screw, corner connection. 6 holes on the frame can be installed easily.

V Junction box: Multi function junction box with water proof.

VI Long lifetime: ≥25 years; Less power decrease.

VII Good performance of preventing from atrocious weather such as wind and hails.

VIII Resisting moisture and etching effectively, not effected by geology. .

 

Standard Test Conditions of Polycrystalline Solar Panel

The opto-electrical specifications shown below are stabilized values being measured at Standard Test Conditions of multicrystalline silicon Solar Panel, Irradiance: 1000W/m2, Spectrum: AM1.5 at 25°C, The info below is subject to manufacturing tolerances. Where appropriate minutes of measurement are available and are used for the dimensioning of the installation.

Currently,We have 250w-300w solar panel stocks in Both West and East Coasts made in Vietnam,India,Korea,Malaysia and Japan.Meanwhile,we also arrange production line in Wisconsin,USA.If you're interested,please contact us soon.

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Q:is my solar panel big enough?
If a car battery contains 50 amp hours of charge at 2 volts, that's 600 watt hours of energy. divided by 34.03 watts, 7.63 hours to charge completely in direct sunlight. You don't want to connect them all in series. You want about 4 or 5 volts to charge a 2 v battery, so you should connect groups in parallel, and connect those groups in series to make your voltage. You'll end up with the same amount of power, lower volts and higher amps. It will work for trickle charging your battery if it's not too far run down.
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:Calculate solar panel energy output question?
You have the area of the solar panel. You know their efficiency. What you need to know now is the energy (per area) delivered by the sun. The energy delivered by the sun can be found on the internet. Earth ,43 – ,32 W/m² (wikipedia) That is offcourse for your solar panels perpendicular to the ray's of the sun. If they are under an angle you should see what the area of the projecton of your solar panel is on a plane perpendicular to the ray's of the sun. So know you have the intensity W/m² and an area (or effective area). Here you go the energy deliverd by the sun. And 30% of it is what you get out of your panels.
Q:i am asking about the solar panels?
First of all, make sure that you are taking readings in the dark (with the solar panel indoors and covered). 0.433 is a reasonable forward voltage for a Schottky diode. Ideally, it diode should read open one way (possibly OL for your meter), and 0.4 the other way. If it's reading OL both ways, the diode is bad. You can either unsolder it or cut it out and verify that it is bad.
Q:If I shine different color lights (bulbs) on a solar panel, will it affect the electricity output?
Q:what are bad things about solar panels?
If it is cloudy out, the solar panels won't pick up any sun, therefore they won't work. Also, not all areas actually get a lot of sun, so solar panels would only be useful in certain places.
Q:Questions about solar panels?
I can begin to point you in the right direction. It is a very complicated thing you are asking about. Solar panels produce direct current, in order to store that power for use at night, and on cloudy days, you need a lot of batteries. Those batteries store direct current. In order to use that direct current to power your refrigerator, you need to put it through a thing called an inverter. The inverter produces AC from DC. You may have seen one for sale to plug into the lighter in a car so you can use things that require AC in your car. The inverter looses power doing the conversion. Over time, you can purchase direct current appliances, and make the system more efficient. Years ago, a decision was made to go with AC because of transmission issues (you can move AC across a wire a long distance, and DC is more difficult to move). Many appliances convert AC to DC internally to do their work, but such appliances are expensive. Have I answered your question? Not really. You should understand your question better though.
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 much energy does this particular solar panel produce?
To calculate an estimate of your power usage, follow the first link below. Although you can have whatever sized system you want (at a cost) those on solar power generally keep their power usage down by cooking on gas, not using an electric kettle, using low energy light bulbs. Powering AC would up your power requirements considerably. We run a medium sized house on 860 watts of panels in southern Spain (plenty of sunshine). That includes the washing machine, pool, and running two laptops and wireless network all day,and a ceiling fan on summer nights. Hower we cook on gas, would not consider AC, and the fridge runs on gas (though if the fridge had to be replaced I would buy electric and add an extra pv panel). For an overview of the equipment required and what it does, check the second link below.
Q:Have a question about mobile homes and solar panels!!!?
I'm not an expert on solar panels.... However, if you find they are expensive, I have a suggestion for eliminating a cost for heating... look into geo-thermal heating. It's a one time fee, they basically drill into the earth and heat your home with natural heat from underground. That wouldn't supply you all your power, but could cut down on the cost of solar panels, so you could use them simply for lights etc and not heat as well.... and I'm sure it would increase your re-sale value.

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