Monocrystalline Solar Panel 250W Good Quality

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Shanghai
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TT OR LC
Min Order Qty:
6000 watt
Supply Capability:
6700000 watt/month

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Item specifice:

Material: Monocrystalline Silicon Max. Power(W): 265 Number of Cells(pieces): 60

Product Description:

 

Benefits of Solar Power:

 

Following to RMI, Balance-of-System (BoS) elements, this is, non-module cost of non-microinverter solar modules (as wiring, converters, racking systems and various components) make up about half of the total costs of installations.

For merchant solar power stations, where the electricity is being sold into the electricity transmission network, the cost of solar energy will need to match the wholesale electricity price. This point is sometimes called 'wholesale grid parity' or 'busbar parity'

 

Specifications of Mono Solar Panel

 

Average pricing information divides in three pricing categories: those buying small quantities (modules of all sizes in the kilowatt range annually), mid-range buyers (typically up to 10 MWp annually), and large quantity buyers (self-explanatory—and with access to the lowest prices). Over the long term there is clearly a systematic reduction in the price of cells and modules. For example in 2012 it was estimated that the quantity cost per watt was about US$0.60, which was 250 times lower than the cost in 1970 of US$150.

Real world prices depend a great deal on local weather conditions. In a cloudy country such as the United Kingdom, price per installed kW is higher than in sunnier countries like Spain.

Mechanical data and design

Format

156mm x 156mm±0.5mm

Thickness

210μm±40μm

Front(-)

1.5mm bus bar   (silver),blue anti-reflection   coating (silicon nitride)

Back (+)

2.5mm wide    soldering pads (sliver)   back surface field (aluminium)

Temperature Coefficient of Cells

Voc. Temp.coef.%/K

-0.35%

Isc. Temp.coef .%/K

+0.024%/K

Pm.Temp.coef. %/K

-0.47%/K

 

Electrical Characteristic

Effiency(%)

Pmpp(W)

Umpp(V)

Impp(A)

Uoc(V)

Isc(A)

FF(%)

18.35

4.384

0.526

8.333

0.63

8.877

78.39%

18.20

4.349

0.526

8.263

0.63

8.789

78.54%

18.05

4.313

0.525

8.216

0.63

8.741

78.32%

17.90

4.277

0.524

8.161

0.625

8.713

78.04%

17.75

4.241

0.523

8.116

0.625

8.678

77.70%

17.60

4.206

0.521

8.073

0.625

8.657

77.36%

17.45

4.170

0.519

8.039

0.625

8.633

76.92%

17.30

4.134

0.517

8.004

0.625

8.622

76.59%

17.15

4.096

0.516

7.938

0.625

8.537

76.80%

17.00

4.062

0.512

7.933

0.625

8.531

76.18%

16.75

4.002

0.511

7.828

0.625

8.499

75.34%

16.50

3.940

0.510

7.731

0.625

8.484

74.36%

 

 

 

 

 Monocrystalline Solar Panel 250W Good Quality

Monocrystalline Solar Panel 250W Good Quality

 Monocrystalline Solar Panel 250W Good Quality

 

 Monocrystalline Solar Panel 250W Good Quality

Monocrystalline Solar Panel 250W Good Quality

FAQ

 

Q: Do you have the CE, TUV, UL Certification?

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

 

Q: 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

A: 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.

Q: What is your warranty system?

 A: 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.

 

 

 


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Q:Do I only need solar panels to have energy in day and through the night?
Unless okorder.com
Q:Choosing right wattage solar panel?
Will a 30 watt panel at 2 volts be enough to run this system during sunlight and charge the battery for the equipment to run overnight? Maybe theoretically, but you're going to have very little margin for losses and clouds. I'll bet it has very little power when cloudy. 7.9/30 = 0.26. So at 00% efficiency, you'd need it to be charging more than 25% of each 24 hour period. In a summer with long days and a climate with few clouds, you might make it. But I think you're very close to the edge. And, at 55 AH, how long can I keep a constant draw of 7.9 watts without a recharge? For an ideal battery: time = Q V / P time = 55 A h * 2V / 7.9W time = 83 hours So you've got pretty good margin on your battery.
Q:Solar panel technology?
Solar panels use light energy (photons) from the sun to generate electricity through the photovoltaic effect. The structural (load carrying) member of a module can either be the top layer or the back layer. The majority of modules use wafer-based crystalline silicon cells or thin-film cells based on cadmium telluride or silicon. The conducting wires that take the current off the panels may contain silver, copper or other non-magnetic conductive transition metals.
Q:How can I be part of the solar panel industry?
HEAR IS A WAY, BY CLICKING THE LINKS $$GET PAID $$GET PAID $200+EURO 200 INSTANT $$ $$SINGUP BONUS $$ GET PAID BY CLICKING BELOW FOLLOW THE INSTRUCTIONSFIRST CLICK THE LINK ONE AND REGISTER YOUR SELF, AND THEN CLICK THE LINK TWO AND REGISTER YOUR SELF CLICK AND GET THE LINKS:
Q:Charging batteries with a solar panel?
I have been using solar panels for over ten years never until recently bothered to use a charge controller, it depends really on how much power your batteries can hold how often they will be drained from use of the connected dc-ac inverters. While constant daylight charging at 8v 3.5a/hr is quite heavy it is not excessive, 2v lead acid battery chargers give a voltage output of appx 4.8v but the fluctuating output of a solar panel means you may well charge at 8v for some time but with occasional shade etc it will more likely average at 5v which I think is quite acceptable.
Q:I NEED HELP WITH MY SOLAR PANEL SYSTEM PLEASE HELP?
I think you need to take some basic courses on electricity. Usually, 8 volt solar panels are required to charge 2 volt batteries. The voltages of photovoltaic cells are set by the material they are made of, only current changes. If you hook up a 2 V solar panel to a 2 V battery, no current will flow, nothing would get charged. You would need some elaborate DC to DC voltage converters to charge a 2 V battery from 2 V solar panels. Solar panels can be connected in parallel or in series, as you've made the mistake of buying 2 V solar panel, you would have to wire them in series and have a charge controller that could limit the voltage of the charge. Did it ever occur to you that two 5 watt solar panels would not be able to provide the power needed by a 400 watt inverter? You're just running off your battery with your set up. Solar power is expensive power, you can not have solar without burning a hole in your wallet.
Q:What are solar cells made of?
Solar cells are mainly made of a semiconductor called silicon,when sunshine on it,solar energy is converted into electrical energy by photovoltaic.The energy knocks electrons loose, allowing them to flow freely.This flow of electrons is a current, this current, together with the cell's voltage (which is a result of its built-in electric field or fields), defines the power (or wattage) that the solar cell can produce.
Q:information on solar panels?
A decent installation needs a solar engineer to make sure the panels are aligned to take advantage of all the solar it can get. that or You need to hit the books on solar radiation. online I would try different programs to get the feel. we get less solar radiating in the winter then in the summer. this needs to correctly compensated.
Q:Help choosing solar panels?
first okorder.com/ example: house roof is 20' x 20' 20' = 240, so sq. inches of roof is = 57,600 say rain fall for your area is 3 per month on average. 57,600 x 3 = 72,800 of rain collected. Using the conversion chart link above, that many cubic inches of water = 750 gallons of water free per month. Look at your water bill and see how much you use. Solar panels take on average 2-20 yrs to pay themselves off, just in time for them to be replaced. Paddle wheels go on for just about forever. We still find large paddle wheel mills in the USA that are over 200 yrs old, and still functioning.
Q:Solar panel wiring, materials?
the solar panel should state it, you dont need a inverter to charge, only to use the power from the cell.you do need an amp regulator, so it tells if the battery is on full charge and so the sun doesnt over power the battery through the solar panel

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