• 250w Passive Solar Panels Medium Solar Panel Factory Direct Sale CNBM System 1
  • 250w Passive Solar Panels Medium Solar Panel Factory Direct Sale CNBM System 2
250w Passive Solar Panels Medium Solar Panel Factory Direct Sale CNBM

250w Passive Solar Panels Medium Solar Panel Factory Direct Sale CNBM

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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.

 

 

250W  Poly solar Panel Medium Solar Panel Factory Directly Sale 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: Are solar panels safe?
Yes, solar panels are safe. They are designed and installed to meet strict safety standards. They do not produce any emissions, and the risks associated with solar panels are extremely low. However, it is important to ensure proper installation and maintenance to maximize safety.
Q: Do solar panels require maintenance?
Yes, solar panels do require some maintenance. Regular cleaning to remove dirt and debris is necessary to ensure optimal performance. Additionally, checking for any signs of damage, such as cracks or loose connections, is important. Routine inspections and occasional repairs or replacements may be needed to keep the solar panels functioning efficiently.
Q: How do solar panels affect the electricity bill?
Solar panels can significantly reduce or even eliminate electricity bills by generating clean, renewable energy from the sun. When solar panels produce more electricity than a household consumes, the excess energy can be fed back into the grid, resulting in credits or monetary compensation. This process, known as net metering, allows homeowners to offset their electricity usage and potentially receive lower bills or even payments from their utility company.
Q: Hi. I have been looking into getting solar panals but I only want them for one room. See, we're expanding the house by adding a basement, the basement isn't going to be that big but we wanted to have solar energy for the basement only. Could anyone give me a rough estimate on the cost of solar panals for my basement?
If you're really planning on solar energy, don't waste it on your own consumption. The Hydro company pays you for the energy you put back into the grid....the strange thing is, you buy the power back for less than you sold it, so you actually profit on the power you make! look into this. I wired a nice house for a doctor, and although I didnt supply the solar system, I learned of this concept there. The guy who installed her system charged her around $40,000.00 and the system would never be able to run any large portion of their home. They, of course sold the energy to the utility.
Q: Are solar panels environmentally friendly?
Yes, solar panels are environmentally friendly. They produce clean and renewable energy by converting sunlight into electricity, resulting in reduced greenhouse gas emissions and air pollution compared to fossil fuel sources. Additionally, solar panels have a long lifespan and can be recycled, further minimizing their environmental impact.
Q: Can solar panels be used in areas with high levels of volcanic activity?
Yes, solar panels can be used in areas with high levels of volcanic activity. Volcanic activity does not directly affect the functionality of solar panels as long as they are installed safely. However, it is important to consider additional factors such as ash fallout, potential acid rain, and the need for regular cleaning and maintenance due to the volcanic environment.
Q: I am designing a solar panel but i need to have maximum power output.How can i optimize the equation for power Total power=voltage * current to get maximum power.
first place the panel so it is at right angles to the solar rays. Make sure none of the panel has any shade whatsoever. For best results use motor drives to keep it in that position as the sun moves across the sky. For overall maximum versus time, you need to be near the equator. Solar cells have a high internal resistance, so for maximum power transfer, you need a load of that same resistance. A good charge controller will use DC-DC converters to provide that load. .
Q: The colder a solar panel gets the more efficient it seems to be. As the panel warms, it loses some efficiency. Why is this so? Please explain in a way you would expect a high school kid to understand it, as I am a high-schooler and i have to explain this to other high-schoolers.
For water heater type of solar panel the hot panel has more radiation losses reducing the heat available to be transferred to the water. In PV panels it has got to be characteristics of the PV cells. If the conversion efficiency drops with temperature rise then only this can happen. PV=photo-voltaic
Q: Where in the world are solar panels used. If it is used widespread across a continent just say which continent, other than that, just name the country. So where are solar panels used often?
Solar panels can be used anywhere in the world. The only requirement is that there is sufficient sunlight to power the solar panels and in many developing countries, solar energy is used to heat water.
Q: Can solar panels be installed on a theater or entertainment venue?
Yes, solar panels can be installed on a theater or entertainment venue. In fact, many theaters and entertainment venues have embraced solar energy as a sustainable and cost-effective solution for their energy needs. Solar panels can be installed on the roof or any available open space surrounding the building, generating clean and renewable electricity to power the venue's operations. This not only helps reduce their carbon footprint but also saves on energy costs in the long run.

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