Monocrystalline Solar Panel 250W Good Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 6000 watt
- Supply Capability:
- 6700000 watt/month
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Item specifice
Benefits of Solar Power:
Following to RMI, Balance-of-System (BoS) elements, this is, non-module cost of non-microinverter solar modules (as wiring, converters, racking systems and various components) make up about half of the total costs of installations.
For merchant solar power stations, where the electricity is being sold into the electricity transmission network, the cost of solar energy will need to match the wholesale electricity price. This point is sometimes called 'wholesale grid parity' or 'busbar parity'
Specifications of Mono Solar Panel
Average pricing information divides in three pricing categories: those buying small quantities (modules of all sizes in the kilowatt range annually), mid-range buyers (typically up to 10 MWp annually), and large quantity buyers (self-explanatory—and with access to the lowest prices). Over the long term there is clearly a systematic reduction in the price of cells and modules. For example in 2012 it was estimated that the quantity cost per watt was about US$0.60, which was 250 times lower than the cost in 1970 of US$150.
Real world prices depend a great deal on local weather conditions. In a cloudy country such as the United Kingdom, price per installed kW is higher than in sunnier countries like Spain.
Mechanical data and design
Format | 156mm x 156mm±0.5mm |
Thickness | 210μm±40μm |
Front(-) | 1.5mm bus bar (silver),blue anti-reflection coating (silicon nitride) |
Back (+) | 2.5mm wide soldering pads (sliver) back surface field (aluminium) |
Temperature Coefficient of Cells
Voc. Temp.coef.%/K | -0.35% |
Isc. Temp.coef .%/K | +0.024%/K |
Pm.Temp.coef. %/K | -0.47%/K |
Electrical Characteristic
Effiency(%) | Pmpp(W) | Umpp(V) | Impp(A) | Uoc(V) | Isc(A) | FF(%) |
18.35 | 4.384 | 0.526 | 8.333 | 0.63 | 8.877 | 78.39% |
18.20 | 4.349 | 0.526 | 8.263 | 0.63 | 8.789 | 78.54% |
18.05 | 4.313 | 0.525 | 8.216 | 0.63 | 8.741 | 78.32% |
17.90 | 4.277 | 0.524 | 8.161 | 0.625 | 8.713 | 78.04% |
17.75 | 4.241 | 0.523 | 8.116 | 0.625 | 8.678 | 77.70% |
17.60 | 4.206 | 0.521 | 8.073 | 0.625 | 8.657 | 77.36% |
17.45 | 4.170 | 0.519 | 8.039 | 0.625 | 8.633 | 76.92% |
17.30 | 4.134 | 0.517 | 8.004 | 0.625 | 8.622 | 76.59% |
17.15 | 4.096 | 0.516 | 7.938 | 0.625 | 8.537 | 76.80% |
17.00 | 4.062 | 0.512 | 7.933 | 0.625 | 8.531 | 76.18% |
16.75 | 4.002 | 0.511 | 7.828 | 0.625 | 8.499 | 75.34% |
16.50 | 3.940 | 0.510 | 7.731 | 0.625 | 8.484 | 74.36% |
FAQ
Q: Do you have the CE, TUV, UL Certification?
A: We’ve already passed all the tests, and any certificate is available.
Q: Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other
A: Actually we are only manufacturer of solar panels, but we could try to source them for you in China if you need. We could provide you an optimal system design to instruct you how to install.
Q: What is your warranty system?
A: For c-Si panel: 25years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 5 years.
For a-Si panel: 20 years output warranty for no less than 80% of performance, 10 years output warranty for no less than 90% of performance. Free from material and workmanship defects within 2 years.
- Q:My plans are building several solar panels and have a battery bank. I want to be able to power the refriderator and freezer and occationaly an electric grill. How would This work exactly and what would the best way to hook this up to make it work? I want to be able to convert DC to AC. How many batterys would I need to make this work. I know when Civil unrest happens I want to be prepared. How would Wind Power work If I can get the equipment I need?
- lets find out
- Q:Can solar panels be used in areas with high temperatures?
- Yes, solar panels can be used in areas with high temperatures. In fact, solar panels are designed to withstand a wide range of environmental conditions, including high temperatures. However, it's important to note that extreme heat can slightly reduce the efficiency of solar panels, but this reduction is usually minimal and does not significantly impact their overall performance. Additionally, proper installation and maintenance can help mitigate any potential heat-related issues.
- Q:Any opinion on harbor freight solar panels ?
- Actually, if you are looking to start slow and inexpensive, they are an economical way to get your feet wet, so to speak. I also tried the make them yourself kits, where you get a stack of cells, a frame and solder and you have to get the glass and assemble it yourself. I combined the Harbor Freight kit with one of those panels. Problems you will run into start with the kit having no inverter and not much information on any kind of power storage, you get to work that out for yourself. I initially wired them to provide all the power for the ceiling mounted lights in a small house, on a totally independent circuit, using 3 car batteries for storage. It worked perfectly, however the code inspector I got from the City could NOT fathom that my system had no connection whatsoever to his grid and would not pass it, even though I showed him the separate breaker box that was not supplied by the line coming into the house for the rest of the power. I finally gave up on him and put the lights back into the main system and use the solar setup to charge cell phones and occasionally power a lamp, as the inverter has plugs right on it. It keeps those car batteries fully charged going on 4 years now, with no issues detected at all.
- Q:hey so im doing this project for my technology class and i was wondering what different colours solar panels can be. also is it possible to have kentic power as a back up power if batteries dont work? thx in advance
- Ours are all silver - we have them on a canal boat and on our house roof for water heating. I've not seen them in any other colour, but that doesn't mean they don't exist.
- Q:I own a townhome in the Phoenix area (my power company's SRP, if that makes a difference). Phoenix is a great place for solar. I could probably save money, in the long term, if I got some solar panels.But I am currently extremely broke, so I can't buy solar panels unless I will more or less immediately be paying no more than I am now per month, with little or nothing down. And most of the solar leasing places won't work with me, because (as is common for townhomes) I don't technically own my roof. I have permission to put things on it, but the property management people (or whoever actually owns my roof) won't sign the lease or whatever.Anyone know of either a way to buy solar panels without paying significantly more per month than I already do for electricity, or a solar leasing company that can work with the restrictions I have?
- The big problem is that you cannot force the homeowners association to do anything. I live in a condo with a HOA. We have outside parking spaces. The goonies won't let people run electric lines to parking spaces to charge electric cars. Several years ago, residents had to sue the HOA in court because they would not allow satellite dishes on buildings. The HOA lost. You don't have money to pay an attorney so you are out of luck.
- Q:How do solar panel power systems work?
- Solar power works by making solar cells of two kinds of glass; one which has been “doped” to have too many electrons, and the other which has been “doped” to have too few electrons. These layers of glass are then glued together with a thin insulation layer in between them. The top layer of glass is the one with too many electrons, the bottom layer of glass has too few electrons, and the insulation allows electrons to pass from the bottom layer to the top layer easily, but not from the top layer to the bottom layer as easily. As photons come flying into this glass sandwich at the speed of light, the photons crash into the electrons in both layers and cause them to start moving. The electrons in the top layer are tightly packed and can’t move much, but the electrons in the bottom layer can move around enough that they end up crossing through the insulation into the top layer. However, because there are already too many electrons in the top layer, the newly arrived electrons have no place to rest. This buildup of electrons creates an “electrical pressure”. Then contacts are glued to the glass top and bottom, and a wire is added to connect the top layer to the bottom, and the electrical pressure which has built up in the top layer now has a way to escape, and the extra electrons which crossed over the bottom to the top can now return to the bottom layer. This flow of electrons from the top layer to the bottom layer is the electricity generated by the solar cell. A solar “panel” is made up of many of these cells wired in series to increase the voltage to make it high enough to do some useful work, such as charging batteries, and many of these panels can be wired together to do such things as supplying power to a building, or even supplying power to the utility grid.
- Q:Can solar panels be installed on a metal roof?
- Yes, solar panels can be installed on a metal roof. In fact, metal roofs are often considered an ideal surface for solar panel installation due to their durability and longevity. The sleek, smooth surface of a metal roof provides an excellent mounting platform for the solar panels, and the panels can be easily attached using specialized mounting brackets designed for metal roofs.
- Q:How to make a simple solar panel?
- There are many kinds of solar panels. Please specify single crystal, poly crystaline, gallium arsenide, thin film, or water heating solar panel. How much detail do you need? Are you actually making one or just writing a report? If you expect a meaningful answer you need to provide background information.
- Q:I want to replace my electricity with solar and wind. I live just right outside the city, the roof about 000 square feet. How many windmills/solar panels would it take to get me off the power grid?
- If you are in the desert and near the equator you will need fewer panels than if you live in a rain forest or Alaska. If you live in a wind tunnel with consistent strong wind, you will have better results than if you live where there often is a lull in the wind and changes of direction of the wind. If you already pump your water by hand, generate your own electricity by cycling using your legs, and go to bed whenever it gets dark out, you might make it. But if you tend to cook and launder on the grid, run a refrigerator, perhaps heat your house or air condition it, own various gadgets you plug into outlets to use, like lamps, puters, toaster, shaver, blender, dishwasher etc, you may not be able to get off the grid.
- Q:Can solar panels power my entire home?
- Yes, solar panels can power your entire home. However, the feasibility of this depends on various factors such as the size of your home, the amount of sunlight available in your area, the efficiency and capacity of the solar panels, and your energy consumption patterns. It is recommended to consult with a professional to assess your specific needs and design a solar system that can meet the energy requirements of your entire home.
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Monocrystalline Solar Panel 250W Good Quality
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 6000 watt
- Supply Capability:
- 6700000 watt/month
OKorder Service Pledge
OKorder Financial Service
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