20W Polycrystalline Solar Panel Mini Poly Solar Panel Lewes CNBM
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 300000 set/month
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Polycrystalline Solar Modules
CNBM offers a range of small, medium and large polycrystalline solar modules, designed for a range of requirements.
Specifications:
Tolerance | +/-3% |
Cell | Polycrystalline silicon solar cells (156 x 156mm) |
N0. of Cells | 60 (0 x 6) |
Dimension of Modules (mm) | 1650 x 990 x 40 |
Weight (kg) | 25.5 |
Limits:
Operating Temperature | -40~+85? |
Storage Temperature | -40~+85? |
Maximum System Voltage | 1000 VDC max. |
Hail Impact | Diameter of 28mm with impact speed |
Temperature and Coefficients:
NOCT | 48C+/-2? |
Voltage temperature coefficient (%/K) | -0.35 |
Current temperature coefficient (%/K) | 0.05 |
Power temperature coefficient (%/K) | -0.45 |
Characteristics:
Model: | SGM-200P | SGM-210P | SGM-220P |
Max-power voltage Vmp (V) | 29.2 | 29.4 | 29.41 |
Max-power current Imp (A) | 6.85 | 7.14 | 7.48 |
Open-circuit voltage Voc (V) | 36.5 | 36.69 | 36.9 |
Short-Circuit Current Isc (A) | 7.28 | 7.6 | 7.93 |
Max-power Pm(W) | 200 | 210 | 220 |
Model: | SGM-230P |
Max-power voltage Vmp (V) | 29.8 |
Max-power current Imp (A) | 7.72 |
Open-circuit voltage Voc (V) | 37.31 |
Short-Circuit Current Isc (A) | 8.19 |
Max-power Pm(W) | 230 |
STC: Irradiance 1000W/m2, module temperature 25?, AM-=1.5
Poly Crystalline Solar Panels Specifications Range
Maximum Power (Pm) | Dimension | Weight | Operating Voltage (Vmp) | Operating Current (Imp) | Open Circuit Voltage (Voc) | Short Circuit Current (Isc) |
0.45W | 140x80x10mm | 0.08kg | 3.3V | 150mA | 4.6V | 160mA |
1.0W | 162x140x10mm | 0.16kg | 7.5V | 150mA | 10.3V | 160mA |
4.5W | 269x251x23mm | 0.8kg | 16.5V | 0.27A | 20.5V | 0.3A |
10W | 420.1×268.9×22.6mm | 1.92kg | 17.5V | 0.58A | 20.5V | 0.6A |
20W | 425x502x50mm | 3.0kg | 16.8V | 1.19A | 21.0V | 1.29A |
30W | 593x502x22.6mm | 3.9kg | 16.8V | 1.78A | 21.0V | 1.94A |
40W | 655x537x50mm | 5.75kg | 17.3V | 2.31A | 22.1V | 2.54A |
50W | 839x537x50mm | 6.0kg | 17.5V | 2.9A | 21.8V | 3.17A |
65W | 1111x502x50mm | 7.2kg | 17.6V | 3.69A | 22.1V | 3.99A |
80W | 1204x537x50mm | 7.7kg | 17.6V | 4.55A | 22.1V | 4.8A |
- Q: I have a shed that has wiring run for light bulb and a couple outlets. It is in a dark corner of my yard and at night is kinda creepy to go in with even a flashlight. I am weighing the option/expense of running electricity from the house on an overhead line versus putting up a 45 watt solar panel on the metal roof with inverter, battery etc. Sunlight is good to excellent at the location. Question is - will this be sufficient for the occasional use of light and an outlet? What can I expect? Pros and cons appreciated
- For okorder /... Electric power. Rather than an overhead cable you can bury a cable or PVC conduit and power the shed with 20AC. You can easily supply 5 to 30A of 20V AC that supply all of your power needs without the issues and limitations of the Solar system. If your shed is within 200 ft of your home you should be able to power the shed for less than $400 if you do the work.
- Q: What is the difference between solar panels and light panels?
- The production of silicon requires that the stone be heated to become liquid, and the heating becomes gaseous crystals. During the need to burn a lot of fossil fuels and emissions of toxic gases silicon tetrachloride, this material has a corrosive effect on the skin. After pickling, pulling crystal, cut the side, finished a series of processes, more industrial chain. The cost of the finished product is too high. The energy consumption of making a solar cell requires solar cells to be equal in power generation for several years. The cost recovery period is very long.
- Q: What is the impact of snow accumulation on solar panels' performance?
- Snow accumulation on solar panels can have a significant impact on their performance. When snow covers the panels, it blocks sunlight from reaching the photovoltaic cells, reducing their ability to generate electricity. Additionally, the weight of the snow can put stress on the panels and potentially damage them. However, some modern solar panels are designed with anti-reflective coatings and tilted surfaces to minimize snow accumulation and aid in self-cleaning. In regions with heavy snowfall, regular cleaning or snow removal may be necessary to maintain optimal solar panel performance.
- Q: I contend:As far as the solar panels causing global warming I'll try to explain. If you put a black panel on the ground or on your house and don't connect it to anything, it will absorb solar energy (heat) during daylight and release it at night (radiation). The net heat gain is zero. If you hook up a solar panel in the same place but hook it up to batteries, charge the batteries during sunlight hours and using that energy to electrically heat the home at night. The panels will absorb solar energy during the day but will convert that to electrical energy in the batteries instead of radiating it back into space at night. The result is a net gain in earth's temperature.Right or wrong?
- If you put a black panel on the ground or on your house and don't connect it to anything, it will absorb solar energy (heat) during daylight and release it at night (radiation). Not exactly. Assuming the black panel establishes an equilibrium temperature, it's going to be losing exactly as much heat as it's receiving during the day. Some will radiate out into space, some will conduct or convect into the atmosphere. As a wild guess, maybe 50/50. If you hook up a solar panel in the same place but hook it up to batteries, charge the batteries during sunlight hours and using that energy to electrically heat the home at night. The panels will absorb solar energy during the day but will convert that to electrical energy in the batteries instead of radiating it back into space at night. The panels are only about 4% efficient, so it's the same situation as the pure black panel for 86% of the energy. The remaining 4% will get stored in the batteries and then converted to heat at night. That heat will eventually leak out of the house and warm up the Earth a tiny bit. I think it's much the same situation either way. With the black panel the energy gets radiated / conducted/convected right away. With the solar panel a small percentage is stored and not so much is radiated, mostly conducted and convected. You're partly right as a black panel is going to radiate more into space than a house. But you're taking about maybe some day about 4% of % of the differening radiation/convection/conduction fraction, of the Earth's surface area. Probably not significant.
- Q: Got a small project here in a remote location. There is to be a 2 volt deep cycle battery, the equipment to be powered from battery and solar panel to charge battery. The 2 volt battery puts out 55 AH. the max constant power draw from the equipment to be powered is 7.9 watts. Will a 30 watt panel at 2 volts be enough to run this system during sunlight and charge the battery for the equipment to run overnight?And, at 55 AH, how long can I keep a constant draw of 7.9 watts without a recharge?Thanks to all the input!
- Will a 30 watt panel at 2 volts be enough to run this system during sunlight and charge the battery for the equipment to run overnight? Maybe theoretically, but you're going to have very little margin for losses and clouds. I'll bet it has very little power when cloudy. 7.9/30 = 0.26. So at 00% efficiency, you'd need it to be charging more than 25% of each 24 hour period. In a summer with long days and a climate with few clouds, you might make it. But I think you're very close to the edge. And, at 55 AH, how long can I keep a constant draw of 7.9 watts without a recharge? For an ideal battery: time = Q V / P time = 55 A h * 2V / 7.9W time = 83 hours So you've got pretty good margin on your battery.
- Q: Most solar panels (the flat ones that go onto roofs of houses) reject electricity produced by the panels if they are too low in voltage. For example, on a cloudy day, although the panels may still get some sunlight to produce some electricity, it is rejected because its too low in voltage. So, does anyone have any ideas?
- Put one more panel in series with other one to increase the voltage output during cloudy day.
- 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:)
- Toronto would not be higth on my list of solar panel worthy locales. They are a bit pricey and are only cost effective in climates and locations with lots of direct sunlight. But if you could safely say you get direct light on your rood nearly every day, they could work. Wind turbines are getting better... especially omnidirectional dome type turbines. But again they are a bit costly, and work best if you believe you get direct wind for at least half the day. If your roof is reasonably flat and structurally sound, a solar hot water generator can be quite cost effective. Essentially it is a panel of corrugated metal under two thin transparencies of plastic. Water is pumped up to it and as it runs along the corrugation, the trapped heat under the plastic heats it up nicely. They are cheap to buy and easy to build and install, and will completely remove the need for a dedicated hot water heating system. Once again, it really depends on the precise location and construction of your house. Do a search for solar heat in your area. If it is cost effective, someone will be offering...
- Q: Can solar panels be used for powering a hotel or hospitality establishment?
- Yes, solar panels can definitely be used to power a hotel or hospitality establishment. Solar energy is a reliable and renewable source of power that can be harnessed to meet the energy demands of such establishments. By installing solar panels, hotels and hospitality establishments can not only reduce their carbon footprint but also save on electricity costs in the long run. Moreover, advancements in solar technology have made it possible to store excess energy and use it during non-sunlight hours, ensuring a consistent power supply for the establishment.
- Q: What's your opinion on solar power? More specifically, having panels installed on your roof to reduce your electric bill. I'm having a consultation tomorrow to get more details. I live in the SW, so it's always crazy sunny here. I don't know what the cost will be yet. Is it something you'd consider if the situation was right? If not, why?
- You dont say where you live? you need to consider average sunshine hours. There are some sites on the net that will work out for you what percentage of nameplate capacity you could expect to receive for different areas. Usually the capital cost wont be paid off for at least ten years, so money wise you would do much better by investing the cash. I once asked a guy (climate warmer) whether his solar panels had paid off or would do in the future, his answer was no but it was the right thing to do morally.
- Q: Can you connect a solar panel to speakers that use a wall outlet plug, by cutting the plug off and connect copper wire between the solar panel and cord?Confusing i know. I'm trying to connect a solar panel to speakers for a science project.
- If you mean powered computer speakers, I think you have a chance. They're low power, and often low voltage. What you want is a parent or your science teacher to give you advice. You will want to find the kind of speaker that has a power adapter that plugs into the wall. The power adapter will put out, say, 6 volts at 200 mA. That's what you want to replace with the solar panel, not wire to the part that plugs into the wall.
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20W Polycrystalline Solar Panel Mini Poly Solar Panel Lewes CNBM
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 set
- Supply Capability:
- 300000 set/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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