20w Poly Solar Module With High Efficiency

20w Poly Solar Module With High Efficiency

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 watt

Supply Capability:: 100000 watt/month

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Product Description:

1.Structure of Solar Module Description

CNBM Solar's photovoltaic module is designed for designed for large electrical power requirement. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar offers high performance of power per square foot of solar array.

2.Main Features of the Solar Module

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

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

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

Strong aluminum frames to strengthen the load hold and to stand against high wind.

Junction box: Multi function junction box with water proof.

Long lifetime: ≥25 years; Less power decrease.

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

Resisting moisture and etching effectively, not effected by geology.

The certificate issued by international authority: UL, TUV, IEC, VDE, CE.

20w Poly Solar Module With High Efficiency

Solar panel working process

In addition to being the ultimate source of all life on earth, the sun is an infinitely renewable, completely pollution-free source of electricity. Instead of burning fossil fuels dug up from the ground in a big power plant – a very 19th century, industrial age approach, when you think about it – solar panels convert sunlight directly into electricity, with no harmful emissions.

The basic unit of a solar panel is a solar cell, which usually consists of one or two layers of silicon-based semiconductor wafers. When struck by the photons in sunlight, the solar cell generates an electrical charge due to the "photovoltaic effect" – which is a pretty good name, since it produces voltage from photons. The flow of these electrons moves in a steady electrical current from one side of the cell to the other.

Dozens of these PV cells are packaged together into solar modules, which in turn are packaged into solar panels that are mounted on a rooftop and arranged to maximize their hours of exposure to direct sunlight. Because the electricity generated by all those solar cells is direct current (DC), it is then sent to an inverter that transforms the power into the same alternating current (AC) used by the appliances in your home and the local utility electricity distribution grid. Increasingly, these inverters are getting "smart," providing data monitoring for solar installation performance and other grid integration services.

Q:So I reckon it's time to install some of these bad boys. it's come to point where electricity providers are charging such extortionate amounts that I can definitely see these reaping huge rewards before long. (Okay I might be exaggerating a little - they are pretty costly themselves).The problem is I've read around that they're only fitted to south facing houses? Why so? Why can't they be installed on the rear side of the roof - the side facing the garden? My house is facing north, so the front door leads north. Could I have solar panels installed on the back? (That's basically my question, with a bit of a rant too lol).Cheers.: You want the panels facing south because that is where they would get the most sunlight throughout the day. If your front door is facing north, then the back of your house would be facing south, right? So put them up in the back where they are facing south...haha wtf..

Q:Can I fet free solar panels. This site okorder sells a book that tells how to, but I ordered tha book more then a year a go, and in never came. I even sent them a email a day for more then 3 months and never heard back from them. If anyone knows how to get free pannels, please let me know how. A $300.00 a month bill is slowly killing me.: If you sent payment via the US mail, report them for fraud. Next, solar panels usually have a high upfront cost for the homeowner - but this is usually offset by a tax refund. The amount of refund varies by area. Check out the cost with a local installer - they have the most motivation to know all the tax breaks you can get. Then save for it, and in the mean time switch your bulbs to fluorescents, unplug your coffee pot, computer, VCR, microwave when off, and see if your energy company provides free insulation evaluation services. And reduce your temperature this winter by 2 degrees, and change that furnace filter.

Q:Are there solar panel systems that I can plug directly into my house to help reduce my electricity bill? If so, are they very expensive? Any help would be greatly appreciated!: As per the question, the answer is no. Solar panels are available, they are expensive, they can reduce your energy bill, you can get up to 30% of the expense back from your taxes, but they must be installed by a qualified electrician or solar panel installer to work properly.

Q:How do I choose the right size of solar panels for my home?: To choose the right size of solar panels for your home, you should consider factors such as your average electricity consumption, available roof space, and budget. Start by calculating your average monthly electricity usage, and then determine how much of that you want to offset with solar power. Consider the size and orientation of your roof to evaluate the available space for panels. Additionally, assess your budget and the financial feasibility of the installation. Consulting with a solar professional or installer can provide valuable guidance tailored to your specific needs and help you make an informed decision.

Q:Can solar panels be installed on a sports stadium or arena?: Yes, solar panels can be installed on a sports stadium or arena. Many stadiums and arenas around the world have already implemented solar panel systems to generate renewable energy and reduce their carbon footprint. The large roof space and open areas surrounding these venues make them ideal locations for solar panel installations. Additionally, the energy generated by these panels can be used to power the stadium's operations and even contribute to the local power grid.

Q:I am planning to run a couple of dc motors on solar current. I have a couple of 450mA 4V, 200mA .5V, 00mA 9V solar panels with me. I need to run a pair of .5A 9V motors. Suggest me a circuit along with other equipments I might require. For your info, I am trying to build a solar powered drone / UAV: I don't think it is enough solar power. Your motor requires .5A x 9V = 3.5 watts. The solar cells are .450A x 4V x 2ea. = 3.6 watts, .2A x .5V = .3 watts, .A x 9V = .9 watts total solar = 4.8 watts. The problem with connecting the cells in series to get the right voltage, like the two 4V cells in series with the .5 volt cell (total 9.5 volts) is that the .5 volt cell limits the maximum current to only 0.2A. If you paralleled that with the 9V cell, you would get 9 volts at 0.2 + 0. = 0.3A, too low to operate the motor at its design current and voltage. The best you could do is put the two 4V cells in series, and in parallel with the 9V cell (a blocking diode might be a good idea, but probably not required for such a small array). That way you get 8 volts at 0.55 amps.

Q:how fast does a 25watt solar panel generate power to a battery? trying to figure out a conversion factor here to get a rough estimate of how many i would need to power my house, please help?: To figure our how many you need, take a look at your power bill. It will tell you how many kilowatt/hours you used during the month. My bill says I use about 2000 kilowatt/hours per month, or about 2000 kwh /30 days=67 kw/h hours per day. That is 67,000 watt hours. To supply that with solar panels, you have to generate at least 67,000 watt hours, but you don't have a full day to do it, since you have to do it while the sun is up. So you put the energy into batteries during the day, so you can use it at night. A 25 watt panel generates about 25 watts when fully illuminated by the sun. If you fully illuminate it for an hour, you get 25 watt hours. If you get 2 hours of sunlight a day, that would seem to imply that I need 67000 watt hours/25 watts /2 hours=45 panels. But for most of the day, the sun isn't hitting the panel fully, so it isn't going to generate the full 25 watts. When the sun is 45 degrees to the side, you only get about 70%. When the sun is 60 deg to the side, you only get 50%. And what do you do on cloudy days? And the shorter days in the winter? To make up for this, you have to increase the number of panels to make up for the loss. So in reality, I might need double this number of panels, for realiable solar power throughout the year. That works out to about 90 panels, or ,250 watts worth for my house.

Q:Can solar panels be installed on a theme park or amusement park?: Yes, solar panels can be installed on a theme park or amusement park. In fact, many theme parks around the world have already installed solar panels to generate clean and renewable energy. This not only helps to reduce their carbon footprint and dependence on fossil fuels but also saves them money on electricity bills in the long run. Additionally, solar panels can be integrated into the design of the park, complementing its aesthetic appeal and showcasing the park's commitment to sustainability.

Q:If a solar panel is a .5kW system, what length of time is it putting out that much power? Every hour?: I think it refers to the maximum power it is capable of. Of course, it won't really have this output because it's energy output (kWh) is dependent on it's energy input...

Q:That one costs money but looks like it might work. I don't really have the money for it but if it works then it would probably be worth it. Do homemade solar panels really work or is it just a gimmick? I'm really interested to see if anyone has actually tried this and to see what they say about it.Thanks: The technology of the solar panels is way beyond any DIY project. You can buy pre-assembled panels and install them, but you also need the devices to make the DC they generate into the AC your home needs. Also you will need the batteries for the nights and the times when the sun does not shine. Solar/ photo voltaic generation does work but is not a cost effective way to reduce your reliance on the electrical grid as of this time. They cost 2 arms and a leg, and take many years to come close to break even on the electrical savings. Do a search on the amount of power each panel will generate and then compute how much power you need and what the costs are. I believe in solar power, but not for an individual residence is it practical. Good luck.

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