Portland Solar Panels - Factory Direct Sale:A-Grade High Efficiency 250W Poly Solar Panels

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Our solar cells are widely used in solar pump, solar lighting, lamps, household electricity, traffic, communication, meteorological, building and photovoltaic power plants and so on.

Characteristics

Max Power Voltage Vmp(V): 30.4

Max Power Current Imp(A): 8.26

Open Circuit Voltage(V) : 37.5

Voc(V)Short Circuit (A): 8.88

Current Isc(A)Max Power Pm(W): 250

Temperature Coefficient of Cells

NOCT	45
Temperature Coefficients of Isc(%/℃）	0.04
Temperature Coefficients of Voc(%/℃)	-0.34
Temperature Coefficients of Pmp(%/C)	-0.42

Mechanical Data

Limits

Guarantees

Products Guarantee	12yrs 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), CE

IV Curve

Factory Direct Sale: A-Grade High Efficiency 250W Poly Solar Panels

Q: Can solar panels be installed in areas with high seismic activity?: Yes, solar panels can be installed in areas with high seismic activity. However, special considerations need to be taken into account during the installation process to ensure their stability and durability. Reinforced mounting systems and appropriate anchoring methods can be utilized to enhance the resistance of solar panels to seismic events. Additionally, regular inspections and maintenance should be conducted to identify and address any potential issues that may arise due to seismic activity.

Q: How do solar panels affect the property's energy consumption?: Solar panels can significantly reduce a property's energy consumption by generating electricity from sunlight, thereby offsetting the need to draw power from the grid. This helps to lower utility bills and decrease reliance on fossil fuels, leading to both financial and environmental benefits.

Q: Can solar panels be used in areas with high pollution?: Yes, solar panels can be used in areas with high pollution. While pollution can reduce the efficiency of solar panels to some extent, they can still generate electricity in such areas. Regular cleaning and maintenance of the panels can help mitigate the impact of pollution and ensure their optimal performance. Additionally, the use of advanced technologies and materials in solar panel production can further enhance their resilience to pollution.

Q: Rated in kilowatts, what is the maximum output of one 8 by 0 solar panel? Assume this solar panel is located at the equator for maximum sunlight.: The world record efficiency for a solar panel is about 42%. At the equator, you can get up to about 000W m^-2. The efficiency of commercial cells tends to range from 0-20%. They're almost all single junction cells, so will never exceed 3% efficiency. To work out your maximum power output, multiply 000 x efficiency (as a decimal) x area covered. So an 8m x 0m solar panel would be 80 square metres. At 5% efficiency its peak output would be 2000W or 2kW. Total energy output will be different, since it won't be maximum power output all the time. In fact, it will more likely generate something like 20% of its maximum theoretical output, since the Sun won't always be overhead (and sometimes it's night!). The 2kW panel above might have a mean output of 2.4kW, or 57.6kWh/day.

Q: Do solar panels require regular maintenance?: Yes, solar panels do require regular maintenance to ensure optimal performance and prolong their lifespan. This maintenance typically involves cleaning the panels to remove dirt, debris, and any other obstructions that may reduce their efficiency. Additionally, regular inspections and monitoring of the system are necessary to identify and address any potential issues or malfunctions.

Q: What is the impact of shading on solar panels' performance?: Shading on solar panels significantly reduces their performance as it obstructs the sunlight required for generating electricity. Even a small amount of shading on a single panel can lead to a significant drop in power output for the entire solar system. Hence, it is crucial to ensure that solar panels are installed in areas with minimal shading to maximize their efficiency and effectiveness.

Q: I am told there are night vision goggles to see at night due to invisible light still hitting earth. I am also told that there are other beams, x-rays etc hitting earth.Why couldn't they invent a solar panel with dual power in the day?It could harness both visible and invisible light, and at night be single?Anyone know why they can't make an invisible light solar panel?Is this possible?What happens if future cars have night vision windshields instead of lights?: Solar panels work when the metals from which they are made release electrons when hit by radiation. There is a threshold that, below a certain wavelength/frequency, they do not eject electrons. As frequency increases, more electricity flows. Radio and infrared are the least energetic electromagnetic waves.

Q: Can solar panels work in the shade?: Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!

Q: Does anyone own any and would you recommend them? right now i only own solar stake lights and i use them during the summer in my yard. But during the winter i take them out because they don't charge well. I live in toronto canada where it snows a lot during the winter, would it even be worth it to buy solar panels? Would they get covered with snow if the were mounted on my roof and get ruined? I plan on buying some when i purchase my own home.Any info would be appreciated:): You may have to put a snow roof over the wind generator to keep it working. A solar hot water system might be hard investment where you are but it could work if it's designed right. Check out the solar companies in your area for ideas.

Q: it is just for a simple project, but i am looking for a cheap, low cost, around one to two volts solar panel regulator uld y'all please help?: duh, circuit city.

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