• Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price System 1
  • Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price System 2
  • Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price System 3
Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price

Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
400 watt
Supply Capability:
1000 watt/month

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product description

 

Currently, polysilicon is commonly used for the conducting gate materials in semiconductor devices such asMOSFETs; however, it has potential for large-scale photovoltaic devices.The abundance, stability, and low toxicity of silicon, combined with the low cost of polysilicon relative to single crystals makes this variety of material attractive for photovoltaic production. Grain size has been shown to have an effect on the efficiency of polycrystalline solar cells. Solar cell efficiency increases with grain size. This effect is due to reduced recombination in the solar cell. Recombination, which is a limiting factor for current in a solar cell, occurs more prevalently at grain boundaries, 

  • Base stations - for mobil and internet provider

  • Military and Paramilitary base stations

  • United Nations and other Humanitarian Aid & Relief Agencies

  • Mining Contractors (exploration/drilling)

  • Emergency Services (Natural Disaster Organisations)

  • Road, Bridge, Pipeline Construction Organisations

280W High Tech Poly Solar Panel with China Factory Price

280W High Tech Poly Solar Panel with China Factory Price

280W High Tech Poly Solar Panel with China Factory Price

product characteristic

 

The E-series photovoltaic module comes with a 90% (12-year) and 80% (25-year) of rated minimum peak power warranty and a 10-year warranty on workmanship and materials

 

Positive power tolerance 0 to +5W

10 year product workmanship warranty
 Upto 25 year linear power warranty of minimum peak power
 Proven eld performance worldwide

 Internal by-pass diodes across 20 series cells resists effects of shading
 Passed 3rd party testing: Salt spray and Ammonia resistance
 Conforms to UL 1703, ULC-ORD-C1703-01 and CE

 

detail parameter

280W High Tech Poly Solar Panel with China Factory Price

 

technological process

280W High Tech Poly Solar Panel with China Factory Price

280W High Tech Poly Solar Panel with China Factory Price

280W High Tech Poly Solar Panel with China Factory Price

280W High Tech Poly Solar Panel with China Factory Price

 

package&delivery

we pack goods with pallets and carton box

each one will be carefully examined by our staff.

 

 

Q: Hi, i want to please a solar panel in Lima Peru, my Latitude is -2 and longitude -77. I understand that since i am in the southern hemisphere, my panel should be pointing north. However, i am using a program called pvdesigner, and according to this, y should face my panel with and azimuth of 00degrees (0 = south) and a tilt of 60degrees. Does this make any sense?thanks
It doesn't make sense to me. I am at latitude 37.7,and my panels face south at about 38 degrees. Yours should be pointed north as you suggest. Being so close to the equator, and in the absence of any better information, an angle of 2 degrees would be appropriate. However, choosing the best angle will greatly to your overall efficiency, so I would try to find a more credible source, How about the folks from whom you buy the panels. They would know precisely. By the way, if you haven't installed the system yet you might consider going to a high voltage system to cut known line losses in the conductors between the panes and the inverter, I did that plus increasing the conductor size over that recommended by the manufacturer. I gained about two percent in efficiency
Q: Can solar panels be installed on sports stadiums or arenas?
Yes, solar panels can be installed on sports stadiums or arenas. Many stadiums and arenas around the world have already installed solar panels to generate clean energy and reduce their carbon footprint. These panels are typically placed on the rooftops or parking lots surrounding the facility, taking advantage of the ample space available. Additionally, some stadiums have even incorporated solar panels into their architectural design, creating visually appealing and functional structures.
Q: Exactly How much power will this kit produce? for example. Will it only be able to power the 2 light throughout an entire day or would it be able to power a couple TV's with a couple lights. Or a Refrigerator? washer dryer? I'm just wondering exactly what it will be able to do and if it's worth paying $200 for if it'll only power two lights. Don't get me wrong, That's great and will make a difference but i'm looking for something that will make a little bit of a bigger difference. Would the 80 watt monocrystalline solar panel be much better? if so, what would it be able to power? double?
Yes, 80 watts will be nearly twice as useful as 45 watts - but 80 is still a small number. Solar panel systems need an inverter and there's a slight energy loss at the inverter. And, if you want to use the day's energy at night, you'll need a battery or two. And every time you move energy into or out of a battery, you lose a little of the energy. All this is to say that you need to sum up the wattage of your appliances and add a fudge factor to accommodate for the losses. I looked at the kit and was moderately impressed. $200/45=$4.44/watt; that's a reasonable price but the links I left below talk of prices as low as $2.58/watt. Also the Harbor Freight kit doesn't contain an 'inverter' which you would have to buy. Also the wattage advertised for any solar panel assumes the thing is clean and pointed right at the sun on a clear day.
Q: How much space do solar panels require?
The space required for solar panels depends on several factors such as the power output of the panels and the efficiency of the solar cells. On average, a typical solar panel requires around 10-20 square feet of space. However, it is important to note that solar panels can be mounted on rooftops, installed in large solar farms, or even integrated into building materials, allowing for flexibility in their placement and utilization of available space.
Q: Can solar panels be used in areas with high levels of saltwater?
Yes, solar panels can be used in areas with high levels of saltwater. However, it is important to choose solar panels specifically designed for such environments, as regular panels may corrode or deteriorate due to the salt content. Specialized panels with protective coatings and materials are available to ensure their longevity and optimal performance in saltwater areas.
Q: Can solar panels be used for powering a mining operation?
Yes, solar panels can be used to power a mining operation. Solar energy can be harnessed to generate electricity, which can then be used to power various mining equipment and processes. However, the feasibility of utilizing solar panels for a mining operation depends on factors such as the size of the operation, energy requirements, sunlight availability, and cost considerations.
Q: solar panels are way too expensive to buy, can they be homemade cheaply? i want at least 500 watts. everyone on the web sells these instructions, but i'd like a link to free info, if it is really possible for a non-sciencey person to make. thank you
Sorry, okorder /
Q: Dont/Cant work alone?when you buya asolar panel you mUST GET bATTERIES, voltage regulators and many else stuff?cant they just work directly? or can i use normal batteres like Car batteries?The one who Really knows 0 pts. thanks
They can supply a current on their own, but that is not very useful. A battery allows you to store that current so that you can use it at night or when clouds are blocking the sun. the voltage regulator makes sure they do not provide more power than the battery or whatever else you hook it up to can handle. Most places that sell solar panels will have these items to go with them. You will probably want a battery with a larger capacity than a car battery.
Q: Can solar panels be installed on multi-story buildings?
Yes, solar panels can be installed on multi-story buildings. In fact, multi-story buildings are often ideal for solar panel installations as they have a larger surface area to accommodate more panels. Additionally, the height of the building can provide better exposure to sunlight throughout the day.
Q: Could you throw some long scientific words in with your answer so I can impress my teacher, I'm looking to expand my scientific vocab. Thanks
Actually Photovoltaic cells also called solar cells in collection forms solar panel. Photovoltaic cells consist of silicon for converting solar energy into electrical energy.

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