Polycrystalline Silicon Solar PV Panels 250W

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About us
CNBM International Corp, established in 2004, is the business entity for trade and logistic of CNBM Group.With the advantages in Cement, Composite Materials, New Building Materials and Engineering, CNBM mainly concentrate on coal, steel and construction equipments and give priority to solar and wind energy development.CNBM International is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 120 countries and regions all over the world.

 

Polycrystalline Silicon Solar PV Panels 250W

 

Process is as follows:  

1, the battery test

2, positive Welding - Inspection –

3, on the back of cascading - Inspection –

4, laying (glass cleaning, material cutting, glass pre-processing, laying) –

5, laminating –

6, to flash ( to the side, cleaning) –

7, fitted border (glue, loading angle keys, punching, install box, scrub I glue) –

8, the welding junction box –

9, high-pressure test –

10, component testing -- -

11 appearance inspection, packaging and storage;  

 

DATA SHEET

Maximum Power

250W

Efficiency

0.154

Backsheet

White

Frame Colar

Silver

Manufacture Site

China

Frame

Anodized Aluminum Alloy

Weight

19 kg

FAQ:

1. How long will my inquiry get response?

 Your inquiry related to our products or prices will be replied within 24 hours. 

2. Can I get professional service and suggestion?

Well-trained and experienced staffs to answer all your questions in fluent English. 

3. Do you accept OEM or customized design?

OEM & ODM, any your customized lightings we can help you to design and put into product.

4. What if I need specific design?

Distributorship are offered for your unique design and some our current models.

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Q:I have a question about solar panels?
But at night where there is no sunlight does all the electricity shut down for the night? Electrical production shuts down, but most solar electric systems have some way of storing power. There are two main types of storage: . Grid tie. Basically this uses the power grid as a virtual battery. You produce extra power during sunlight hours to sell to the grid (other people use it) and you buy power from the grid when the sun doesn't shine. This is usually the most economical system, but whether you save money depends on a lot of things like: cost of installation, location, government subsidies how much you get for the electricity you sell buy. In other words, the details matter. Mostly location, which determines how much sunlight you get, electric rates, and subsidies. 2. Batteries. Usually a large bank of deep cycle lead acid batteries. Usually only used in off-grid systems and the cost of electricity is usually not competitive with grid electricity.
Q:DIY single solar panels with outlets?
Sounds like an electrocution in the works. Try learning about grid tied and grid free solar system first.
Q:energy and solar panels?
It depends on the size of the solar panels and the intensity of the solar-light. So, there's difference in every place. It's impossible to answer unless there's detail of panel size, panel quantities, average rainfall, average solar days, etc.
Q:Solar power panels?
It sounds like you nor anyone at your home knows enough about solar to be able to hook them up no matter what type they are. I have to agree with others that they could be hooked up and you just can't see the connections. So the best thing for you to do is get a contractor to come out and check them out. It don't have to be a Solar Dealer because I am a dealer and I use electrical contractors to do the installs. A solar dealer is not always legal to install and normally do like I do and just design and sell the systems. However most any dealer can easly install a solar power system because they are trained just not legal to do the work. Having someone other then an electrician work on it could void the warranties.
Q:Using solar panels to replace electrical wiring?
No. solar panels would not solve your problems and are usually not cost effective. Solar panels will not help to compensate for undersized electrical service. You would still have to upgrade the existing service. Once that is done you should have no problems and all the electricity you need would come from your power company. Have an electrician come out and do an inspection and tell you what all needs upgrading. Solar panels would save you money on the monthly power bill but the cost to install them would be higher than your savings. If it made economic sense to have solar power then everybody would be doing it. That's why you see very few houses with solar panels on top.
Q:do solar panels have to be in direct sunlight?
PV panels do not have to be in direct sunlight. If they are behind glass they need to be well ventilated to remove excess heat. If PV cells connected in series are not uniformly illuminated the series will produce an amount of power that is based on the light on the least illuminated cell. Thus moving a panel back from a window will mean that for large parts of the day it will produce almost no power as parts of the panel are shaded. This applies only when the cells are connected in series. In parallel they suffer no special degradation of production, but just the sum of illuminated cells. This makes a difference when you decide to use a higher voltage panel... high voltage panels are more susceptible to partial shading. But connecting low voltage panels in series gives that same degradation. Stay away from placing a panel back away from the window, or close to the edges of the window, under roof overhangs, trees and surrounding building shade, where possible.
Q:Solar panel charging question?
Most solar panels have something called a charge controller on them. This prevents electricity from going backwards from the battery to the panel. Solar panels are rated at 2V but they do put out a little more than that during full sun operation. You didn't specify the size of your battery but it really doesn't matter. It comes down to your consumption of power. If you are only charging the RV battery so it maintains a charge when you don't use it very much, a 5 watt panel is fine. It will charge the battery and keep the small drains on the battery from making it go dead ( the clock radio, the theft deterrent system, etc use power even when RV is off) But if you are using the battery to run things when you are parked, you probably don't have a big enough panel. If you use a 30watt fluorescent light and a 00 watt laptop, you need 30 watts of power saved up every hour in your battery and that's with no inefficiencies. So if your panel puts out 5 watts an hour and you are using 30 watts an hour, you need 30 watts/ 5 watts = 9 hours minimum of charge time to run your stuff for just one hour. You probably need a panel of around a 00 watts to get any meaningful use of your battery. Plus, you never want to run your battery to full drain because it ruins the plates inside the battery. Watts = volts x amps. If you have 2 volts panels, you would charge at 8 amps with a 00 watt panel. This is a good charge rate. Any more than this and you risk warping the plates with too much heat.
Q:what do i have to study to install solar panels?
boots on the roof is one of the classes , around phoenix it it offered at rio salado college, there their so theres a place to start. I have had 2 different people check for me and from what i understand i can install the panels but a licensed electrition has to connect to the meter
Q:Wattage on soldering iron for solar panel?
How To Solder Solar Cells
Q:Should we subsidize solar panels?
Recent investments into solar panels have brought about a couple of interesting realizations and developments. One, as you state, is that traditional solar panels (silicon crystalline panels) are not currently cost effective, even will full-scale manufacturing production. It's possible that improved manufacturing techniques will bring the retail price down somewhat, but it needs to be brought down a lot to make economic sense without incentives. The other, though, is that a new method of producing solar panels - thin film technologies - has been developed. These are currently quite expensive, but because there are no crystals to grow, they are expected to drop significantly in price as production increases. I believe that this technological development has been made as a direct result of government support for solar energy. It is not taking money away from research - rather it is providing the incentive for research. I could be wrong. I've been wrong before. But I think that these new solar technologies, which are already hitting the market, will dramatically change the economics of solar energy.

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