20W Efficiency Photovoltaic Chinese Solar Panels For Sale 5-200W

20W Efficiency Photovoltaic Chinese Solar Panels For Sale 5-200W System 1

20W Efficiency Photovoltaic Chinese Solar Panels For Sale 5-200W

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10000 watt

Supply Capability:: 100000 watt/month

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Solar Module Introduction

Solar Module is the core part of solar PV power systems, also is the highest value part of it. The function of Solar Module is to convert the sun's radiation to electrical energy, or transfer it to battery and store in it, or to drive the load running.
The Product has been widely used in space and ground, it mainly used for power generation systems, charging systems, road lighting and traffic signs areas. It could offer a wide range of power and voltage, and with high conversion efficiency, and long service life.

Solar modules use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The structural (load carrying) member of a module can either be the top layer or the back layer. Cells must also be protected from mechanical damage and moisture. Most solar modules are rigid, but semi-flexible ones are available, based on thin-film cells. These early solar modules were first used in space in 1958.

Electrical connections are made in series to achieve a desired output voltage and/or in parallel to provide a desired current capability. The conducting wires that take the current off the modules may contain silver, copper or other non-magnetic conductive transition metals. The cells must be connected electrically to one another and to the rest of the system. Externally, popular terrestrial usage photovoltaic modules use MC3 (older) or MC4 connectors to facilitate easy weatherproof connections to the rest of the system.

Secification

Model Type
Peak Power-Pmax(W)	5-200W
Open Circuit Voltage-Voc(V)	44.2
Maximum Power Voltage-Vmp(V)	36
Short Circuit Current-Isc(A)	5.4
Maximum Power Current-Imp(A)	5
Maximum System Voltage	1000V DC
Maximum Series Fuse Rating	10A
Power Tolerance	-1~+3%
Temperature Coefficients of Pmax	-0.45%/℃
Temperature Coefficients of Voc	-0.348%/℃
Temperature Coefficients of Isc	0.031%/℃
Nominal Operating Cell Temperature	44.5±2℃
Standard Testing Condition(STC)	Irradiance:1000W/m²;Temperature:25℃;AM=1.5
Qualification Test Parameters
Operating Temperature	-40℃~+85℃
Storage Temperature	-40℃~+85℃
Pressure Bearing	≥5400Pascal/m²
Wind Bearing	≥5400Pascal/m²
Mechanical Characteristics
Cell Size	Mono 125*125mm±0.5
No.of Cells	72pcs(6*12)
Dimension	158080840mm
Weight	15.5Kg
Glass	3.2mm High Transmission,Low Iron
Frame	Anodized Aluminum Alloy
Junction Box	IP65Rated
Internal Diodes	3 Bypass Diodes
Cable	1*4.0mm² Length 900mm

Images

Packing & Shipping:

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

The normal size is packed by 25pcs/ carton / pallet. Paper carton for FCL shipping and wood carton for LCL shipping.

Warranty:

For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 5 years.

For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.

FAQ:

（1）What price for each watt?

It depends on the quantity, delivery date and payment terms.

（2）What is your size for each module? Can you tell me the Parameter of your module?

We have different series of panels in different output, both c-Si and a-Si. Please take the specification sheet for your reference.

（3）Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?

Actually we are only manufacturer of solar panels, but we could try to source them for you in China if you need. We could provide you an optimal system design to instruct you how to install.

（4）Do you have the CE, TUV, UL Certification?

We’ve already passed all the tests, and any certificate is available.

（5）Have you ever sold your products to companies in my country?

Of course, we have customers in all general PV markets, but I think we should expand our market share along with the market growth.

（6）When did your company set up? You are a new company, how can I believe your quality?

We entered into Solar PV industry in 2005, now we have several plants in manufacturing of a-Si and c-Si panels, and our capacity is 220MW per year. Till now we have already passed all the tests by authorized laboratories, e.g. TUV, VDE, UL.

（7）Can you help us install the module if we cooperate with you?

We haven’t entered into installation sector, but we have the plan in near future.

（8) How do you pack your products?

We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.

(9) Can you do OEM for us?

Yes, we can.

（10）Can we visit your factory?

Surely, I will arrange the trip basing on your business schedule.

Q:Can solar panels be installed on mining or extraction sites?: Yes, solar panels can be installed on mining or extraction sites. They provide a sustainable and renewable source of energy, reduce carbon emissions, and can offset the energy demands of these operations. Additionally, solar panels can help reduce operating costs and dependence on fossil fuels. However, specific feasibility studies and considerations are necessary to assess the site's conditions, energy requirements, and potential environmental impacts.

Q:Can solar panels be installed on theme parks or amusement parks?: Yes, solar panels can be installed on theme parks or amusement parks. In fact, many amusement parks around the world are increasingly adopting solar energy to power their operations. Solar panels can be installed on rooftops, parking lots, or even integrated into the design of rides and attractions. This helps to reduce the parks' carbon footprint, lower energy costs, and promote sustainability in the entertainment industry.

Q:I'm thinking of these solar panels that people have on their rooftops in domestic properties. I suppose I mean after how long do you break even with respect to just carrying on without them and getting you electricity from the utilities companies? Or answer in any way you think is pertinent. The more info the better.: It's generally stated that it takes 0 years for them to pay for themselves. But the concept of paying for themselves is a primitive concept used by those who do not understand finances. You're still losing money when it pays for itself. A more appropriate analysis would be the Internal Rate of Return calculations, Excel makes this calculation easy. Overall,?solar power?is expensive power and works out about 38 cents per kwh ( proper economic estimates typically place it between 23 cents to 45 cents per kwh ). Some idiot here will insist solar doesn't cost that much per kwh, it does unless you're uneducated in finance. Note, it's also not clear if the energy produced by?solar panels?exceeds the energy required for their manufacture, delivery and installation. It takes a lot of energy to melt silicon and the costs triple if you try to recycle the toxic wastes which is why the panels are made where it's still possible to dispose of the toxic wastes. They could very well be causing more environmental damage then they save. With the Europeans what happens is the feed in tariffs makes the solar panels worthwhile. They still don't really pay for themselves but they allow you to take some of the tax money from your neighbors, a bit of an ethical dilemma really but ethics never stopped Europeans.

Q:How can I calculate the amount of watts needed for a solar panel to power a water and air pump in gal/hr and a 600 watt LED light?: With you up to solar panel, then things go downhill. Your Water pump will be rated at gal/hr but how about the air pump? 600watt LED? What you need to know in order to select your solar panel is how much current you will be draining. You can work this out if you know how much power and how long they need to run. Please, a bit more information (that is relevant!).

Q:Can solar panels be installed on ski resorts?: Yes, solar panels can be installed on ski resorts. In fact, many ski resorts have already started implementing solar energy systems to reduce their carbon footprint and lower their dependence on traditional energy sources. Solar panels can be mounted on rooftops, parking structures, or even on the ground near the resort area, providing clean and renewable energy to power various facilities and operations.

Q:Are there any health risks associated with solar panels?: There are no direct health risks associated with solar panels. However, improper installation or maintenance may pose electrical hazards, and exposure to high temperatures or falling from heights during installation can lead to accidents. Additionally, some solar panels contain small amounts of hazardous materials, but they are tightly sealed and the risk of exposure is minimal. Overall, when installed and maintained correctly, solar panels are safe and have numerous environmental and health benefits.

Q:I'm doing a science fair experiment with a tiny two-inch solar panel that only gives off like .5 volts of energy, but I need to know how many volts an average sized solar panel (like one you'd get to run your house) would produce. And how many panels do people usually get?: 2 volt and 24 volt are both common sizes. They are rated in voltage and watts. So you add the watts of the panels and buy enough to produce the amount of watts you need. For example, if you need 400 watts of power at 2 volts, you would buy four 00 watt 2 volt panels and connect them in parallel.

Q:Can solar panels be installed on residential homes?: Yes, solar panels can be installed on residential homes.

Q:i really need to know howbecause im building a solar powered car for science fair :]thank you!: You might need some help from the sun.

Q:How will i construct solar panel?: For powering a something that works on DC, like a gate opener, Elaine is right, and in some cases only ONE bigger cell is sufficient due to battery storage; however if the appliance is 20v AC, then an inverter is needed also. MOST of Elaine's answer is good, but a few corrections are needed: Plywood - use EXTERIOR grade only, and even then it can warp; chipboard or waferboard is preferable as it does NOT warp, BUT is not available most places in 3/8, /2 nominal, (5/32) is usually the thinnest available, and it is heavier than plywood. DO NOT use particle board. Superglue - NO, it dries too fast to be useful, in most cases. Wires - For a single cell OK, but for larger panels the best wire is tabbing wire, (which is flat,) which is available from all commercial solar cell dealers. Be very careful soldering this to the cells, as unless you buy the expensive flexible cells, they are easily damaged; I suggest also getting flux pens with liquid flux. Diode - Necessary, but needs to be large enough to handle voltage and current. Usually 25v and 5-30 amps,, one per panel. Plexiglas - OK, but NOT as long lasting as glass; best glass is the special solar glass which is designed to pass almost all of the proper light frequencies, but IS expensive, and usually needs to be specially ordered since most glass stores do not stock it. Double panes work well with the outer pane glass and the inner plexiglas, (to protect the cell if glass broken,) IF where might get damage, such as 'ground' mounting. AND Frame kits are available for larger panels, but IF you make your own, a good table router is a great advantage. Inverter - IF used for 20v AC appliances you MUST have an inverter capable of handling the load, and the best ones are modified sine, or true sine, wave types, and even the best are less than 50% efficient. Note that they will last longer if NOT used at more than 2/3 capacity.

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