Factory Directly Sale 250W Poly solar Panel with 25 Years Warranty CNBM

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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.

Factory Directly Sale 250W Poly solar Panel with 25 Years Warranty 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:

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:Can solar cells be used to power homes?: Yes, solar cells can be used to power homes. Solar photovoltaic (PV) systems convert sunlight into electricity, which can then be used to power various appliances and lighting in households. These systems typically consist of solar panels installed on rooftops or other sunny areas, along with inverters and batteries to store excess energy for use during non-sunny periods or at night. With advances in technology and decreasing costs, solar power has become an increasingly viable and sustainable option for homeowners to generate their own electricity.

Q:How do solar cells perform in areas with high levels of volcanic ash?: Solar cells may not perform optimally in areas with high levels of volcanic ash. Volcanic ash can reduce the amount of sunlight reaching the solar cells, thereby decreasing their efficiency. Additionally, ash particles can settle on the surface of the solar panels, blocking sunlight and reducing their output further. Regular cleaning and maintenance may be required to ensure effective performance in such areas.

Q:Can solar cells be used in drones?: Yes, solar cells can be used in drones. Solar-powered drones have been developed and are being used for various applications. They use solar cells to convert sunlight into electrical energy, which can be used to power the drone's motors and other electronic components. This allows for longer flight times and reduces the need for frequent battery replacements or recharging.

Q:What are the main components of a solar cell?: The main components of a solar cell are the semiconductor material (usually silicon), which absorbs sunlight and generates electrons, the metal contacts that allow the flow of current, and the transparent cover that protects the semiconductor from environmental factors while allowing sunlight to reach it.

Q:Can solar cells be used in electric fences?: Yes, solar cells can be used in electric fences. They can be used to power the fence's energizer, which delivers an electric shock to deter animals or intruders. Solar cells are efficient in converting sunlight into electricity, making them a sustainable and cost-effective solution for powering electric fences in remote locations without access to the grid.

Q:Can solar cells be used in airports?: Yes, solar cells can be used in airports. They can be installed on rooftops, parking lots, and other open areas to generate clean and renewable electricity for powering various airport operations, such as lighting, signage, and charging stations. Additionally, solar cells can help reduce the carbon footprint of airports and contribute to their sustainability initiatives.

Q:How long does it take to install solar cells on a rooftop?: The time required to install solar cells on a rooftop can vary depending on various factors such as the size of the system, complexity of the installation, and the expertise of the installation team. On average, a residential rooftop solar installation can take anywhere from a few days to a couple of weeks. However, larger commercial installations may require more time. It's best to consult with a professional solar installer for a more accurate estimate based on your specific project.

Q:Can solar cells be used for powering traffic lights?: Yes, solar cells can be used for powering traffic lights. Solar cells convert sunlight into electricity, which can be stored in batteries and used to power various devices, including traffic lights. This helps reduce dependence on the electrical grid and promotes renewable energy use.

Q:What is the impact of bird nesting on solar cell performance?: Bird nesting can have a negative impact on solar cell performance as it can lead to shading, blocking sunlight from reaching the cells and reducing their efficiency. Additionally, bird droppings can accumulate on the surface of the solar panels, further decreasing their output. Regular maintenance and cleaning are essential to minimize the impact of bird nesting on solar cell performance.

Q:Can solar cells be used in space exploration?: Yes, solar cells can be used in space exploration. Solar cells are commonly used to power spacecraft and satellites in space missions. They convert sunlight into electricity, providing a reliable and renewable source of power for various systems and equipment used in space exploration.

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