• High Efficiency Polycrystalline Metal Roofing Solar Panels 305W System 1
  • High Efficiency Polycrystalline Metal Roofing Solar Panels 305W System 2
High Efficiency Polycrystalline Metal Roofing Solar Panels 305W

High Efficiency Polycrystalline Metal Roofing Solar Panels 305W

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1000 watt
Supply Capability:
1000000 watt/month

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Specification

Material:
Polycrystalline Silicon
Max. Power(W):
305
Number of Cells(pieces):
72

Introduction of  Poly solar panels CNBM

Polycrystalline  Solar Panels 305W 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 305W 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

Q: Can solar panels be installed on assisted living facilities?
Yes, solar panels can be installed on assisted living facilities. In fact, installing solar panels on these buildings can be highly beneficial as it can help reduce energy costs, promote sustainability, and contribute to a greener environment. Additionally, solar panels can provide a reliable source of renewable energy, helping to ensure a more reliable power supply for the facility and its residents.
Q: I am seriously thinking about installing PhotoVoltais Solar panels (that generate electricity) on my roof. Besides the usual (cost, ROI, etc.), I was researching for the maintenance of these panels. We have tall trees around the house and needles and leaves fall on our roof all the time... not to mention the dirt and grime that collects over time.Do these decrease the capacity of the panels? Do the panels require a regular maintenance?Thanks!
panels need full sun. any shade reduces out put. leaves left on them will cause the individual cells burn out. they nneed adjusting every season, an washed with a soft cloth once a year.
Q: I am looking to buy a solar panel.What does it mean when in the title it says 200 watts, or 50 watts?
Panel ratings are supposed to be standardized, the Watt value when tested at noon in July in the central U.S. on a clear day with the panel pointed straight up at the sun. The maximun theoretical power you could get is about 000 Watts per square Meter. Actual power taking into account efficiency losses wll be more like 850 Watts.
Q: Do solar panels work at night?
No, solar panels do not work at night because they require sunlight to generate electricity.
Q: Could you throw some long scientific words in with your answer so I can impress my teacher, I'm looking to expand my scientific vocab. Thanks
Solar panels are a generic term for any type of solar collecting panel. There are two major types: Photovoltaic uses substances that turn the incoming radiation directly into electricity. Usually you have to have direct sunlight (no clouds) for this to work well. Solar thermal is also used in a lot of areas. Here the radiation is used to heat a circulating fluid (often water directly), and then that is either used directly, or it's used for heat exchange with a heat pump or a boiler system. Solar thermal can collect significant heat even on a cloudy day. So a solar panel could be made of photovoltaic panels, but it doesn't have to be.
Q: Can solar panels be installed on a building with historical significance?
Yes, solar panels can be installed on a building with historical significance. Many historical buildings have successfully incorporated solar panels into their design without compromising their architectural integrity. This allows for the preservation of historical structures while also promoting sustainable energy practices.
Q: Can solar panels be installed on oil or gas facilities?
Yes, solar panels can be installed on oil or gas facilities. Many oil and gas companies are now incorporating solar energy into their operations as a way to reduce their carbon footprint and increase their use of renewable energy sources. These solar panels can be installed on rooftops, open spaces, or even integrated into the infrastructure of the facilities.
Q: I am starting to think about solar panels as an option for my home. I have done some research on panels, to be honest its all very confusing. There are many different panels some with 60 watts some all the way up to 20 watts. My household currently uses about 2700 to 3400 kWh every two months. So based off of my power usage maybe you can answer some of the following questions:What kind of panels should I be looking at?Which panel manufacturers give the best bang for the buck (reliable/affordable)?Anything else I should be concerned about?I am just starting out in educating myself on solar power so please excuse me if I sound very naive. Any information that you may have will be helpful. Thanks in advance.
I'm not an expert, but I recently went through the process and now have a system on my home. I got 3 quotes from 3 licensed contractors and they all seemed to be about the same, the prices seemed to be based on the amount of energy they produced. In CA and I'm sure everywhere else they are tested by an independent agency which rates the output of the panels. You seem to have similar usage as my house, I got a 3.75kwhdc unit, it isn't expected to eliminate my bill, but it should reduce it by quite a bit. I've only had it for a few months and it took me from about 45 kwh per day to around 0. I know I'll have lower output in the winter, but my usage is lower in the winter as well. I decided on this size unit to maximize my rebates and I can take advantage of my utilities rebates when I add to the system in a few years. The difference between panels seemed to be how big they were. Some systems can be twice the size and produce the same amount of energy. I put a couple links below that I found helpful. The roseville pv buy down program has some great links that give information about specific systems.
Q: How do solar panels affect my electricity bill?
Solar panels can significantly reduce your electricity bill by generating electricity from the sun's energy. This self-generated electricity can power your home or business, reducing the amount of electricity you need to purchase from the grid. In some cases, if your solar panels produce more electricity than you consume, you may even receive credit or payment for the excess energy fed back into the grid.
Q: im doin a science experiment and i have a battery that is 3.6 volts , does it matter wut voltage the solar panel that im connecting it to is . Does it need to match , be less or does voltage have no effect . If so wut does matter when choosing the type of solar panel to power a bettery?
Try to disassembled a solar powered calculator inside there will be all the materials u need to your project. U can safe all the trouble to trying to find the correct match. After using try to put it back in if not possible it is just a broken calculator, at least u still have a successful science project.

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