Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price
- Ref Price:
-
- 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
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
technological process
package&delivery
we pack goods with pallets and carton box
each one will be carefully examined by our staff.
- Q: Can solar panels be used for powering a marina or boating facility?
- Yes, solar panels can be used to power a marina or boating facility. Solar panels are a sustainable and efficient source of electricity that can provide clean energy to run various equipment, lighting, and charging stations at the marina or boating facility. Additionally, solar power can help reduce dependency on fossil fuels and lower operating costs in the long run.
- Q: I'm building a solar panel for the first time and have the tabbed solar cells. I put together 4 strings of 9 cells. And the cells are each 0.55V, 3.6A.Because I'm going to be using the panel indoors and leaning it up against a window pane, I put them in a 24x36 inch poster-size frame. The frame has a plexiglass cover and a thick cardboard backing. My question to you is this. Will the cardboard backing up against the metal underside (positive side) of the solar cells be ok? I don't know if it may catch fire or if holes may burn through when there's full sun.My guess here is it should be ok. But maybe I'm wrong. If I am wrong, or if something should be put in between, please let me know what I should use.Thanks everyone!
- In commercial panels some sort of polymer is often used for backing. With a 2V panel there are 36 cells, which means they can still output about 4V for charging a 2V battery even when hot. The voltage reduces about 2.2mV per degree C per cell. Commercial panels are meant to work up to about 60 degrees C, which is quite normal in the sun. I have found just lying them on the grass the air circulation is reduced, and they get too hot to charge a 2V battery. This means the backing should have good thermal conductivity while being an electrical insulator, as well as mechanical strength. The cells are often encapsulated in a thermosetting plastic first, then laid face down so a liquid polymer can be poured as backing.. I have removed commercial panels from their frames and re-packaged them to work in a very wet environment. I suppose cardboard would work, but it is unlikely to have good cooling so the expected voltage would be lower. As you intend to only operate indoors I suppose it is unlikely you have full sun most of the time anyway, so there could be less heating and less output current accordingly. I think the cardboard is only useful for a short time, and is not strong enough. Temperature wise it is marginal. The link below uses plywood for the backing. The backing is supposed to provide strength too. A sheet of some sort of plastic or laminate (including melamine laminate as in kitchen bench tops) comes to mind too. The cells are supposed to be bonded to the backing for better thermal conductivity. Use silicon RTV to stick cells to the backing, very thinly.
- Q: Can solar panels be used to power air conditioning or heating systems?
- Yes, solar panels can be used to power both air conditioning and heating systems. Solar panels generate electricity by converting sunlight into energy, which can then be used to power various appliances and systems, including air conditioners and heating units. This allows for more sustainable and environmentally friendly ways of cooling and heating buildings.
- Q: Is it really necessary to make solar panels that expensive?
- Unfortunately, yes. Solar panels require high-grade silicon which is very expensive. Also, volume sales aren't yet high enough to push down prices. Don't worry though, as people buy them and the technology matures it'll get cheaper. I remember DVD players costing $2000+. Now you can get one for less than $30.
- Q: I thought they were going to make solar powered cars and solar power plants among other things. It was only nearly 0 years ago that solar power was the big thing. Just curious, why did it die out?
- they still make them,i have them on my camper to charge the batteries, they are not cheap, however. you can get them at r.v. supply stores. in fact the ones they make now, are quite efficient, many people in the countryside use them for their homes, i dont know why the development for cars is so slow, though.
- Q: Can solar panels be used in areas with high levels of drought?
- Yes, solar panels can be used in areas with high levels of drought. Solar panels do not require water to generate electricity, so they can still function effectively in dry conditions. In fact, the high levels of sunshine often associated with drought-prone areas can actually make solar panels more efficient.
- Q: Can solar panels be installed on water bodies or reservoirs?
- Yes, solar panels can be installed on water bodies or reservoirs. This is known as floating solar or floating photovoltaic (FPV) technology. It involves mounting solar panels on buoyant platforms on the surface of the water. This approach offers several benefits, including reduced land requirements, increased energy generation due to the cooling effect of water, and reduced evaporation from the water body.
- Q: Are solar panels suitable for all climates?
- Solar panels can be suitable for a wide range of climates, but their efficiency may vary depending on factors such as sunlight intensity, temperature, and cloud cover. While solar panels can still generate electricity in cloudy or cold climates, they tend to perform best in regions with abundant sunlight. Advances in technology have made solar panels more adaptable and efficient in various conditions, making them a viable option for many different climates.
- Q: Can solar panels be damaged by hail or other elements?
- Yes, solar panels can be damaged by hail or other elements. Hailstones, strong winds, and other extreme weather conditions can potentially cause physical damage to solar panels, such as cracks in the glass surface or dislodging of components. However, most solar panels are designed and tested to withstand such elements to a certain extent, and reputable manufacturers often provide warranties to cover any damages caused by hail or other weather-related incidents.
- Q: i am very much interested in making a solar panel, my problem is where i can acquire the main components in order to build it, i am staying here in abu dhabi UAE i'm always searching on the internet for shops that can provide me a DIY kit but i did not find one, i need somebody who knows where i can get these things, please let me know.
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Sunpower Flexible Solar Panels 170w - 280w High Tech Poly Solar Panel with China Factory Price
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 400 watt
- Supply Capability:
- 1000 watt/month
OKorder Service Pledge
OKorder Financial Service
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