• 240w Poly Solar Panel Medium Solar Panel Manufacturer in China CNBM - Solar Panels in CT System 1
  • 240w Poly Solar Panel Medium Solar Panel Manufacturer in China CNBM - Solar Panels in CT System 2
240w Poly Solar Panel Medium Solar Panel Manufacturer in China CNBM - Solar Panels in CT

240w Poly Solar Panel Medium Solar Panel Manufacturer in China CNBM - Solar Panels in CT

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Loading Port:
Qingdao
Payment Terms:
TT OR LC
Min Order Qty:
10 set
Supply Capability:
300000 set/month

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Polycrystalline Solar Modules

CNBM offers a range of small, medium and large polycrystalline solar modules, designed for a range of requirements

 

240W Poly solar Panel Medium Solar Panel Manufacturer in China CNBM

240W Poly solar Panel Medium Solar Panel Manufacturer in China CNBM

Specifications:

Tolerance

+/-3%

Cell

Polycrystalline silicon solar cells (156 x 156mm)

N0. of Cells

60 (10 x 6)

Dimension of Modules (mm)

1650 x 990 x 40

Weight (kg)

25.5

Limits:

Operating Temperature

-40~+85?

Storage Temperature

-40~+85?

Maximum System Voltage

1000 VDC max.

Hail Impact

Diameter of 28mm with impact speed 
of 86km/h

Temperature and Coefficients:

NOCT

48C+/-2?

Voltage temperature coefficient (%/K)

-0.35

Current temperature coefficient (%/K)

0.05

Power temperature coefficient (%/K)

-0.45

Characteristics:

Model:

SGM-200P

SGM-210P

SGM-220P

Max-power voltage Vmp (V)

29.2

29.4

29.41

Max-power current Imp (A)

6.85

7.14

7.48

Open-circuit voltage Voc (V)

36.5

36.69

36.9

Short-Circuit Current Isc (A)

7.28

7.6

7.93

Max-power Pm(W)

200

210

220

 

Model:

SGM-230P

Max-power voltage Vmp (V)

29.8

Max-power current Imp (A)

7.72

Open-circuit voltage Voc (V)

37.31

Short-Circuit Current Isc (A)

8.19

Max-power Pm(W)

230

STC: Irradiance 1000W/m2, module temperature 25?, AM-=1.5

Poly Crystalline Solar Panels Specifications Range

Maximum Power (Pm)

Dimension

Weight

Operating Voltage (Vmp)

Operating Current (Imp)

Open Circuit Voltage (Voc)

Short Circuit Current (Isc)

0.45W

140x80x10mm

0.08kg

3.3V

150mA

4.6V

160mA

1.0W

162x140x10mm

0.16kg

7.5V

150mA

10.3V

160mA

4.5W

269x251x23mm

0.8kg

16.5V

0.27A

20.5V

0.3A

10W

420.1×268.9×22.6mm

1.92kg

17.5V

0.58A

20.5V

0.6A

20W

425x502x50mm

3.0kg

16.8V

1.19A

21.0V

1.29A

30W

593x502x22.6mm

3.9kg

16.8V

1.78A

21.0V

1.94A

40W

655x537x50mm

5.75kg

17.3V

2.31A

22.1V

2.54A

50W

839x537x50mm

6.0kg

17.5V

2.9A

21.8V

3.17A

65W

1111x502x50mm

7.2kg

17.6V

3.69A

22.1V

3.99A

80W

1204x537x50mm

7.7kg

17.6V

4.55A

22.1V

4.8A

 

Q: I'm thinking of having solar panels to generate electricity. The drawbacks are that I'm afraid if it needs repair, I won't be able to find anyone. Also I'm afraid that the roof is not very accessible. If it is a new house, should the roof have a roof hatch? What can make the system not work?
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: If a solar panel has a power rate of 80 Watts and efficiency of lets say 30%. Does that mean the maximum power this solar panel can generate is (30/00)*80=54 Watts or its just 80 Watts?
If it says STC or Standard Test Conditions on the nameplate or documentation, then that means 80 watts under bright sun at an unrealistically cool temperature. It is rare to see that power in real life, except when the perfect storm of conditions come together. There is also a PTC rating for some panels, which is more realistic. If the panel does not say STC or PTC, the manufacturer is free to make up whatever test they feel like, which generally leads to ridiculously overstated power. As for efficiency, for residential panels, that's generally only of academic interest. A 80-watt panel is 80 watts, regardless of the efficiency. A more efficient panel will take up slightly less space, but most people are more interested in the total price, since roof space is generally not an issue.
Q: How much space do I need for solar panels?
The amount of space you need for solar panels depends on various factors such as the size and efficiency of the panels, your energy requirements, and the available sunlight. Generally, you'll need around 100 square feet of unobstructed roof space per 1 kW of solar panels. However, it's best to consult with a solar installer who can assess your specific needs and provide an accurate estimation.
Q: I've run out of things to keep me entertained recently and as part of a larger project, I was curious if its possible to 'McGuyver' up a solar panel out of common materials?
Building your own panels can be an interesting experiment, but if you are looking for solar panels to provide significant, consistent output, you should buy factory made ones. I get lots of calls from people who built their own panels and get a fraction of the advertised output from them. Plus, factory built panels will last 40 - 50 years, with a 25 year warranty, how sure are you that you can build something that can withstand the outdoors for that long? The price of panels has dropped a lot this year, plus with rebates and tax credits, it's getting more affordable.
Q: my pool guy cleaned the filter and replaced the DE, but now my roof solar panels have started leaking. how do i stop the leak? does backwashing help in any way?
bypass the whole panel if you can ( one individual panel of several ) , or bypass that loop in that panel - car part rubber hose clamps
Q: Do solar panels require regular maintenance?
Yes, solar panels generally require regular maintenance to ensure optimal performance and longevity. This includes periodic cleaning to remove dirt, debris, and snow, as well as checking for any possible damage or malfunctioning components. Additionally, regular inspections and maintenance by professionals are recommended to identify and address any potential issues or inefficiencies.
Q: I need a list of worldwide solar panel manufactures from china, US, Spain, Germany, Japan etc...Can any one direct ne to such place?I rather it will also contain comparison of parameters like efficiacy, quality etc and to be divedied by country of manufacturing.Thank you
You can't buy at that level unless you are connected to governement. A lot of production is already spoken for for years to come. Where you live determines what you can legally buy and install. The EU has it's own certification, the US has 2 sets, the Canadians have their own. Your answer also requires knowing the use for the solar panels, whether it is grid-tie, off-grid or standalone to power an appliance. And you have to choose mono crystalline, poly crystalline, or thin-film.
Q: How do solar panels generate electricity?
Solar panels generate electricity through the photovoltaic effect, where sunlight is converted into electricity. The panels consist of multiple solar cells made of semiconductor materials, typically silicon. When sunlight hits the cells, it excites the electrons, causing them to flow and generate an electric current. This current is then captured and used to power various devices or stored in batteries for later use.
Q: How do solar panels affect the aesthetics of a roof?
Solar panels can have both positive and negative effects on the aesthetics of a roof. On one hand, they can enhance the visual appeal by giving the roof a modern and eco-friendly look. On the other hand, some people may find the appearance of solar panels less attractive or disruptive to the overall design of their roof. Ultimately, the impact on aesthetics largely depends on personal preferences and the design integration of the solar panels into the roof.
Q: Okay, me and my friends are going to fix up an old trailer that's out in the woods, we want something to be able to run small electric appliances off of, but it's to far to run power to. How can we make a good but cheap homemade solar panel that we could plug things into? The trailer is in more of a field so it gets plenty of sunlight! Thanks for any help! :)
you cant make solar panels to generate electricity at home. A LOT of high tech equipment is needed. About the cheapest option is to use solar powered garden lights but that is all you'll get is a bit of light.(Google making solar panels) You should be able to make up a windmill powered generator though (but dont expect much power out of something you can make easily) Do some research yourself

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