• Portland Solar Panels - Factory Direct Sale:A-Grade High Efficiency 250W Poly Solar Panels System 1
  • Portland Solar Panels - Factory Direct Sale:A-Grade High Efficiency 250W Poly Solar Panels System 2
  • Portland Solar Panels - Factory Direct Sale:A-Grade High Efficiency 250W Poly Solar Panels System 3
Portland Solar Panels - Factory Direct Sale:A-Grade High Efficiency 250W Poly Solar Panels

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

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Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
5000 watt
Supply Capability:
40000000 watt/month

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Current 

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

 

NOCT45
Temperature Coefficients of Isc(%/℃)0.04
Temperature Coefficients of Voc(%/℃)-0.34
Temperature Coefficients of Pmp(%/C)-0.42

 

Mechanical Data

Dimension1638x982x35
Weight18kg
No. of Cells and Connections60(6x10)
Tolerance0~+5W
CellPolycrystalline Cell
Packing812 Pcs/40ft(H) Container

 

Limits

Opening Temperature-40℃ to +85℃
Storage Temperature-40℃ to +85℃
Max System Voltage1000VDC(IEC)/ 600VDC(UL)

 

Guarantees

Products Guarantee12yrs free from defects in materials and workmanship
Performance GuaranteeNo less than 90% within 10yrs and no less than 80% within 25yrs
CertificatesTUV(IEC61215&IEC61730), CE

 

IV Curve

 

Q: Hey i am going to build a scale model house and demonstrate how you would use solar panels to provide energy. I am thinking of buying some kit solar panels and wiring up some lights to show how they power the home. Also i might hook up a battery in the house to show how you can store the energy. I might also have a large battery hooked up outside the house to represent a power plant that could provide emergency power. Any ideas or comments would be great. Thanks
By gaps you could mean that it is expensive. Also, there is the debate over whether or not giving people incentives like tax breaks is a good idea Also, it takes a while to recoup the initial invesment in an array, although tax incentives would help and lastly, a solar array big enough to power the united states would have to be in an obnoxiously large area, alhough the ideal areas are already uninhabited because they are too hot.
Q: Can solar panels be installed on a landfill or waste management site?
Yes, solar panels can be installed on a landfill or waste management site. In fact, these sites can provide suitable locations for solar panel installations due to their large open spaces and minimal shading. Additionally, repurposing landfill sites for solar energy generation helps to utilize otherwise unused land, reduces the environmental impact of waste management, and promotes the production of clean and renewable energy.
Q: What is the principle of solar panels to convert solar energy into electricity?
optical cable communication pump Station power, seawater desalination system, urban road signs, highway signs, etc. Europe and the United States and other advanced countries will be integrated into the photovoltaic power generation system and remote areas of natural village power supply system into the development of the combination of solar cells and building systems have been formed industry Trends
Q: When I make a solar panel, what do I use to store the energy. For example I am going to make a solar panel to power my lights in my room. But I dont want the lights only to come on when the sun is out because that would be very pointless. So... Do I use the panels to charge something like a car battery and then run wires from the battery to an extension chord which will go to a surge protector? It sounds awesome, but I have to put it all together. The help is very appreciated. Thank you guys.
First of all you seem to be talking about making a solar photovoltaic panel instead of a solar thermal panel. Most solar panels will produce DC electricity. Your house uses AC electricity. You can set up the solar photovoltaic panels to send their current to charge a battery bank and then you can tap into that battery bank and send the power to a voltage inverter to change the power to AC. The better inverters will do a better job of this. The system has to be matched and sized properly. If you are not familiar with electrical work you should have someone who is more knowledgeable help or do the work. Good luck with your project.
Q: Can solar panels be installed on ground-mounted structures?
Yes, solar panels can be installed on ground-mounted structures. In fact, ground-mounted solar panel systems are a popular choice for residential, commercial, and utility-scale projects. They offer flexibility in terms of location, orientation, and scalability, making them an ideal option for areas with limited roof space or shading issues. Ground-mounted structures can be customized to optimize solar panel angles for maximum energy production and are easier to install and maintain compared to rooftop systems.
Q: I paid for an appraisal and the home was valued at $25,000. The problem I have with this is my house is equipped with solar panels. I paid about $25000 for them. A comparable house sold for $225,000 4 months ago. Same amount of rooms, bathrooms, square feet, lot size and curb appeal (landscaping). But no solar panels. Home prices in my neighborhood have also gone up. I would like to know if there is any way I can dispute this as I feel I just wasted a lot of money on a incorrect appraisal.
Normally solar panels are listed as part of the house that supply heat, like a water heater or furnish. Your house would be appraised the same without the solar panel. Since the house you are references sold 4 months ago this might not be a comp your appraiser would have used. Normally a house would have to be sold within the past 90 days to be used by an appraiser. You are able to challenge the appraisal of the house you paid for. The appraiser would take a second look at the cops he/she used in coming up with the valuation of the property and see if here was something that was over looked. If you want to challenge the appraisal based on the fact that you have solar panels, it is doubtful there would be any changes. By adding the solar panels to your house might have been over built your house for the neighborhood. Look around your neighborhood to see how many other houses have solar panels. Normally in an area where houses are valued at around $200K or so would not normally be equipped with solar panels. This would not add value to your house as other houses in your neighborhood would still appraise for the same, since they would not have solar panels as the house you indicated in your statement did not have. I hope this has been of some benefit to you, good luck. FIGHT ON
Q: Can solar panels be installed on warehouses?
Yes, solar panels can be installed on warehouses. In fact, warehouses are often ideal locations for solar panel installations due to their large roof spaces, which can accommodate a significant number of panels to generate clean and renewable energy. Additionally, warehouses tend to have uninterrupted sunlight exposure, making them well-suited for solar energy generation.
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?
. Make sure you got the right type of battery that allow to charge from the solar panel. 2. Make sure you use a device which I forgot the name but it will make sure the charge go one way in case the light go out so will not drain the battery while it is hook up. 3. Make sure you got the right charge from the solar panel to charge the battery. Reason is easyier to swim down the river or is it easy to swim up river.
Q: Can solar panels be used for powering a hotel or hospitality establishment?
Yes, solar panels can definitely be used for powering a hotel or hospitality establishment. Solar energy is a clean and sustainable source of power, and installing solar panels can significantly reduce energy costs for the establishment. Additionally, hotels often have large rooftops or open spaces that are suitable for installing solar panels, making it a practical and efficient solution for meeting their energy needs.
Q: I have in mind a small solar panel that could be plugged into a wall socket. Do I need a converter or some kind of interference between the two power sources so there aren't any unpleasant explosions? I don't know much about this sort of thing so please be nice.
You can use a solar panel to heat water, and you can generate electricity, but you can't plug it into a wall socket. The most effective way to save on your energy bill is by heating water. Solar panels that produce electricity, don't store it. They produce it for that particular time, and if you're not there to use it, it's gone. Furthermore, the electricity isn't always regular, it may have peaks and shortages. The best way to tap into that, would be to sell the electricity you produce to the grid, and then buy it back when you use it.

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