Polycrystalline Solar Panels 290W With High Efficiency

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1000 watt
Supply Capability:
1000000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 290 Number of Cells(pieces): 72

Product Description:

Introduction of  Poly solar panels CNBM

Polycrystalline  Solar Panels 290W With High Efficiency

CNBM Solar photovoltaic (PV) Panel is designed for large electrical power requirements. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar panel offers high performance of power per square foot of solar array. Monocrystalline silicon(c-Si): often made using the Czochralski process. Single-crystal wafer cells tend to be expensive, and because they are cut from cylindrical ingots, do not completely cover a square solar cell module without a substantial waste of refined silicon. Hence most c-Si panels have uncovered gaps at the four corners of the cells.

 Polycrystalline  Solar Panels 290W With High Efficiency

Feature

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

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

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

4.Long lifetime: ≥25 years; Less power decrease.

5.Resisting moisture and etching effectively, not effected by geology.

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

 

Specification

Characteristics of  Poly solar panels CNBM

Max Power Voltage Vmp(V) 

30.3

30.8

31.1

31.4

31.85

Max Power Current Imp(A)

7.60

7.64

7.73

7.81

7.85

Open Circuit Voltage Voc(V)

36.1

36.6

37

37.3

37.68

Short Circuit Current Isc(A)

8.50

8.55

8.65

8.75

8.85

Max Power Pm(W)

230W

235W

240W

245W

250W

 

Temperature Coefficient of Cells Poly solar panels CNBM

NOCT 

45 ± 2

Temperature Coeffucients of Isc (%/)

 0.0492

Temperature Coeffucients of Voc (%/)

-0.3374

Temperature Coeffucients of Voc (%/)

-0.4677

 

Mechanical Data of Poly solar panels CNBM

Dimension 

1638 ×  982 × 40 mm

Weight

19.5 kg

No. of Cells and Connections

60 (6 ×10)

Tolerance

0 ~ + 5 W

Cell

Monocrystalline Cell 156 × 156 mm

Packing

624 Pcs/40ft(H) Container

 

Limits of Poly solar panels CNBM

Operating Temperature

-40 to +85

Storage Temperature

-40 to +85

Max System Voltage 

1000VDC(IEC) / 600VDC(UL)

 

Guarantees of Poly solar panels CNBM

Products Guarantee

12 yrs free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 25yrs

Certificates 

TUV(IEC61215&IEC61730),VDE(IEC61215&IEC61730),UL,CE

 

Packaging Information

Package:26pcs/box

Quantity:1 box/pallent

Loading Capacity:952pcs/40ft

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Q:Who made solar panels?
Google would like to be your friend - Try - who invented solar panels and see what turns up.
Q:Can you get energy at night from solar panels?
This Site Might Help You. RE: Can you get energy at night from solar panels? Is it possible to store energy from solar panels for night?
Q:Do you know that China is the largest producer of solar panels in the world?
Well, for thirty grand I hope they're of better quality than most of the stuff coming out of there.....Meh, I've got an old Boy Scout manual and some Foxfire books. I'll just make some myself this weekend.
Q:Why are solar panels only 0% efficient?
Sunlight comes in many frequencies, that's why it's white. Solar Photovoltaics require a photon to displace an electron from a semiconductor and that only happens at one frequency depending on what the semiconductor material is, therefore only one exact frequency gets turned into power. They are working on using organic dyes or quantum dots to absorb the energy in different frequencies and re-emit the energy in the desired frequency. They also are working on using multiple semiconductor materials to try and capture more frequencies. The rest of the energy becomes heat which also reduces the efficiency of the solar cells. The lab record for solar photovoltaics is 42.8% efficiency and quantum dots promises to be 65% to 75% efficient. Keep in mind that fossil fuels are based on energy collected by photosynthesis over millions of years. The efficiency of photosynthesis with modern plants is about 0.5% and the theoretical maximum efficiency of photosynthesis is 6.6%. All of our current energy use is based upon a small fraction of 0.5% efficiency over millions of years.
Q:Solar Panel costs and sizes?
Take a look at the website from Retscreen International. This is a site sponsored by the Canadian government and they have everything that you will ever need to know about renewable energy. Download the free software and then feed in the position of your school (GPS Coordinates) and some data about energy useage. It will then link to the NASA websites to tell you the weather and work out what size of solar panel you need, what direction it should point and what angle it needs to be mounted on. I've used it for the UK, Afghanistan, Iraq, Jordan and other countries - It's brilliant - and its free. It also links to manufacturers websites and so gives you costings. Use this and you are guaranteed to be top of the class
Q:Is getting solar panels worth it for your home?
Yes, solar panels are a great way to save on electricity costs for your home. 4 things I can tell you to look out for are: Make sure you can fit enough solar panels on your house to make a decent saving. If you don't have the roof space then you can't put up enough panels and you might as well not bother. For a medium sized home, I would say that you should go no smaller than 2.2kW in solar panels. If you can fit more then go for it. Make sure that the inverter that is used is big enough. It has to deal with the watts from the solar panels back to the power board to convert it as useable energy. If you have a rebate system where you live then make sure you use it. Where I am we have carbon credits that the government will give you that you use to offset the cost of purchasing solar. Don't fall for gimmicks where a company will promise you that you won't pay electricity every again. In order for that to happen you need to be putting more electricity back in the grid as you are currently using so you either need a huge amount of solar panels or you really need to cut back on what you are currently using.
Q:Solar panels.......Earning potential.?
it depends on your solar panel, but you can sure supply most if all of your electronics and electric stuff in your house on a sunny day. If you want to know exactly how much power it supplies and how much $$ you can save you simply have to calculate how much power your home consumes per day/month. I know of people totally reliable on solar power for their home and I too will put solar panels on my home one day.
Q:Home solar electricity advice? Making the solar panels accessible?
Modern solar electric panels rarely fail. Because of this, if you would be installing them over a roof that only has a few years left on it, it would be better to redo the roof, first. In the unlikely event that a panel needs to be changed, this can be done in 30 minutes or so, because the panels are mounted on racks, with everything simply plugging together. I have never personally seen a solar installation go bad, but from what I hear, the inverter (a box that goes in next to your electric service panel) is usually what burns out after 5 years, assuming the install was done right in the first place. If you were to call roofers to repair your roof, they would somehow be able to get to your roof, by ladders, or a special truck. Solar installers use the same kind of equipment. They won't have a problem getting up there. A solar electric system is actually a very straightforward thing. No matter who installs it, if there is a problem, another installer should be able to diagnose and fix it.
Q:Can I get free solar panels?
Do not touch free solar panels with a barge pole. The installer keeps the feed-in tariff and owns the panels on your roof, a problem when you come to sell the house. Your only benefit is the free use of the electricity generated, if you happen to be in, or use time clocks, on dish washer, washing machine etc. My system has a target of 6 kWh per day. At 43.3p per unit this is a theoretical payment of £6.92 a day. All you could gain, assuming you use every available kWh generated, would be £.92, assuming a tariff of 2 p per kWh. The feed-in tariff goes down for new installations next April. In my opinion its a good buy, and should show an 8% return on our investment. I would not like to give the main benefit to someone else.
Q:What are the main components of a solar panel?
solar cell is the key component.

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