Polycrystalline silicon solar panel(CR140P-CR120P)

Ref Price:
$72.00 - 84.00 / pc
Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
50 pc
Supply Capability:
-

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Product Description:

High-efficient solar cells
High transmissivity low-iron toughened glass
Anodized aluminum frame
Water resistant junction box
Design to meet unique demand of customer
25 year poweroutput warranty

the products of this series:Polycrystalline silicon solar panel(CR070P-CR060P) are ranged as follows:

CR140P,CR135P,CR130P, CR120P

of which,

cell dimension:156mm*156mm

number of celles and connections: 36(4*9)

panel dimension: 1478*670*35(mm)

per weight: 11.5KG

junction box type: PV-GZX0503B-4

cable and asymmetrical lengths: NANYANG(4.0mm2), 900mm(-)and 900mm(+)

connection: MC4

 

 

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Q:0 Watt solar panel question?
It will be less than a trickle charger on the battery. It is about .85 amps at 2 volts dc.
Q:Does making solar panels cause more pollution than they take away when used?
It depends on what type of pollution you are talking about. Some of the newer cells that don't use silicone are made with dangerous chemicals that are just dumped into the local water supply when made in China or other places with no real environmental controls. No matter how much carbon free energy the cells produce they will never clean up the mess people made when building them.
Q:Solar Panel Circuit Question?
Do you know what is the rated Peak watts of the solar cell and the current needed to operate the relay. The power needed to operate the relay can be found from 9V * operating current, and that should be lower than the peak output power of the cell (perhaps significantly less as the peak power is produced only at high solar radiation levels. Another factor is whether the curves for the solar cell match the load. Typically the solar cells have a knee type diagram for the VI relationship, and that is why they need Maximum Power Point trackers to deliver a good power output.
Q:selling solar panels online - a good idea?
Did okorder.com, you will see thin film going for 99 cents a watt at times. The crystalline kind of panel that goes for $2.35 a watt is more like $.50 wholesale, and that's for a major distributor, not a (forgive me) small order of $60k, which is less than one container. There is a coming glut of panels, and prices will fall, but that means both wholesale and retail prices. I'm not saying it won't work, but do good research. For example, I think there are many more than 3 or 4 online shops for solar panels. Investigate shipping an warehousing costs. Investigate whether Home Depot really does not offer installation (every time I go in there, I see a guy handing out flyers for installation). And research carefully how much it will cost to provide installation. The typical install requires skilled and licensed workers. It won't be legal in most places unless someone has the necessary certifications. It's not just a matter of screwing the things to the roof. Any roof penetration has to potential to leak if done improperly. And any electrical wiring has the potential for burning the house down. Whatever business you finally pursue, research carefully, or that $60k will flee from you like a jackrabbit.
Q:Solar panel Efficiency in Tropics?
The equivalent full sun hours in the tropics is around 5h a day, though the sun is around for 0 or more hours. This is to do with angles of a fixed panel. If the panel tracks the sun, it would be a bit longer, maybe 8 hours. The panel is rated for 000W in equivalent full sunlight at 25°C. As the panel temperature increases to 50 or 60°C, de-rate to 800W, and multiply that by 5h = 4kWh. This varies over the year. This is the energy the panel is capable of providing, which depends on just what it is connected to. Generally an MPPT controller (maximum power point tracking) will get the best result. If charging a battery, the energy is less, because of charging losses. This is a rubbery figure because the battery may not be a simple charge/discharge cycle, but allow about 75% of the 4kWh above. Any shading on part of the panel can reduce or stop production, or cause damage to the panel even. This is what the brown marks sometimes seen on some cells in a panel are usually caused by.
Q:Solar Panels?
Well, the best way to buy solar panels is to shop by watts. Solar panels come in a wide variety of watts, from to over 200. However, the more watts a panel has, the more it costs. I would suggest getting small things first, and gradually converting to solar power so as to help the environment and save money. If you have an outdoor pool, buy a solar collector to heat it. It will extend your swimming season and once you hook it up, you won't have to worry about it. (My cousins have this on their pool.) Also, there are solar cell phone chargers available for purchase, you could get one of those. As for your house, you would need several solar panels and a converter to be able to power your whole house on solar energy.
Q:Does anyone know a company that will make custom solar panels?
Make okorder.com
Q:Has anyone had roof problems caused by rooftop solar panels?
Rooftop solar panels might cause all sorts of maintenance or poor installation problems but I rather doubt at this point if we can say that there is an issue with solar panels in general that will cause a problem with the roof. Rather solar panels tend to shade a roof on its most exposed side. Without solar panels southern facing roofs will wear out faster than northern facing roofs. Installed solar panels will tend to make the roof last longer.
Q:Improvising Solar Panel Made from Old CD or DVD? Possible or not?
A solar electric panel? No. Solar electric cells, or more properly photovoltiac (PV) cells, are made from specially prepared (doped) wafers of silicon, much like transistors and diodes. CDs and DVDs are made from plastic plated with aluminum. They don't have anything to do with each other. Of course you can make a reflector out of CDs or DVDs, and you could use a bunch of them to focus sunlight on a water tank or something - this is called solar thermal generation. (That's what that ehow page is talking about, not generating electricity.) But there are much better things to use for mirrors.
Q:Efficiency of solar panels?
Efficiency of photovoltaic panels usually describes the ratio between the energy of the sunlight falling onto the panels and the electric energy you get out. This number is, for commercially available panels today, usually in the range of 2...9 %. What you are asking is something else. The power from the panel depends on the light falling on it. A panel rated for kw peak will deliver that kw under a clear sky, with the sun orthogonally above the panel. For a fixed mounted panel, that is true (at most) for two days every year at noon. At any other time, the output is less. Therefore (at least for the area I live in), some people build databases (and Excel tools) in which the various variables are considered: - inclination of the panel - orientation of the panel - average sunshine duration during a year Plugging in these numbers, I get theoretically for my roof an electricity output of just over 000 kWh/year per installed kWpeak of collector power. If you set up a tracking panel (following the sun), the energy output of the panel will be higher, but so will be the cost for the mounting and the area needed to set up the system.

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