Solar Panels California Polycrystalline CNPV-140W High Performance 36 Cell
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- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 pc
- Supply Capability:
- 100000 pc/month
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Introduction of Solar Polycrystalline Series Panels
CNBM Solar photovoltaic (PV) Panel is designed for large electrical power requirements. It is the optimal choice for both on-grid and off-grid power systems. CNBM Solar panel offers high performance of power per square foot of solar array. Monocrystalline silicon(c-Si): often made using the Czochralski process. Single-crystal wafer cells tend to be expensive, and because they are cut from cylindrical ingots, do not completely cover a square solar cell module without a substantial waste of refined silicon. Hence most c-Si panels have uncovered gaps at the four corners of the cells.
Polycrystalline Silicon Solar Cells156mm Advantage:
• High efficiency and stable performance in photovoltaic conversion.
• Advanced diffusion technique ensuring the homogeneity of energy conversion efficiency of the cell.
• Advanced PECVD film forming, providing a dark blue silicon nitride anti-reflection film of homogenous color and attractive appearance.
• High quality metal paste for back surface and electrode, ensuring good conductivity, high pulling strength and ease of soldering.
• High precision patterning using screen printing, ensuring accurate busbar location for ease with automatic soldering a laser cutting.
Characteristics of Solar Polycrystalline Series Panels
Max Power Voltage Vmp (V) | 17.4V |
Max Power Current Imp (A) | 8.05A |
Open Circuit Voltage Voc (V) | 22.4V |
Short Circuit Current Isc (A) | 8.59A |
Max Power Pm (W) | 140W |
Temperature Coefficient of Cells
NOCT | 47℃±2℃ |
Temperature Coefficients of Isc (%/℃) | 0.064 |
Temperature Coefficients of Voc (%/℃) | -0.33 |
Temperature Coefficients of Pmp (%/℃) | -0.45 |
Mechanical Data Solar Polyocrystalline Series
Power | 140W |
Dimension | 1470×670×30mm |
Weight | 11kg |
Tolerance | ±3% |
The dimension of the modules can be changed according to the demand of clients
Limits
Operating Temperature | –40 °C to +85°C |
Storage Temperature | –40 °C to +85°C |
Max System Voltage | 700V |
Guarantee Solar Polyocrystalline Series Panels
Products Guarantee | 5 yrs free from defects in materials and workmanship |
Performance Guarantee | No less than 90% within 10yrs and no less than 80% within 25yrs |
Certificates | UL, IEC, ISO, TUV, CE |
FAQ
We have organized several common questions for our clients，may help you sincerely：
1. What’s price per watt?
A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.
2. Can you tell me the parameter of your solar panels?
We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.
3. How do you pack your products?
We have rich experience on how to pack the panels to make sure the safety on shipment when it arrives at the destination.
4. Will you offer OEM service?
We can do OEM, depends on the quantity.
- Q: Hello, I have been trying to go green, I Have purchase somesolar panel they are about 45watts I been putting it against my window and getting ok power out of it enough for my lights and a couple of low watts gadget (cellphone, 2v light, portable dvd) for couple of hours.But its seem to drain the 2v faster then I can charge Am I getting the most power out of my panel?Or should I place it on the roof? I'm in Texas and it gets hot and sunny the sun beam my room windows pretty good during 4pm-6pm.
- The MOST efficient placement is on a motorized mounting that constantly moves it to face the Sun directly. Almost nobody does that because it is clumsy and expensive. The best fixed position is facing X degrees due south of straight up, where X is your latitude. I am in Austin, at about 30 degrees latitude, so on the south side of a 30 degree pitched roof would be ideal. The direct south facing it the best average to catch morning and afternoon sun, with most efficient pointing at noon. The tilt equal to latitude is the best average between the high Sun in summer and low Sun in winter, with most efficient pointing in spring and fall.
- Q: Do solar panels float?
- The ones in my neighborhood installed on telephone poles last year all have bird poop all over them and aren't generating any electricity. They can't even generate enough energy to pay for their construction, installation, and ultimately the work required to take them down and destroy them. Talk about a business case that has nothing but negative return on tax payer investment, all to further the lib agenda. All cost, 0 benefit. Classic lib business thought.
- Q: What are the maintenance requirements for solar panels?
- The maintenance requirements for solar panels include occasional cleaning to remove dirt and debris, checking for any damage or loose connections, and ensuring that the panels are receiving sufficient sunlight. Additionally, regular monitoring of the system's performance and scheduling professional inspections can help identify and address any potential issues.
- Q: I have an inverter and a battery 20 Amperes.Daily sun shine approx. 7 Hours.Do I need to buy anything or should I connect the solar panel to the Battery direct?
- No, don't connect the panel directly to the battery. You need to isolate the solar panel charging output from the AC-powered charger. A couple of high-current diodes arranged with their anodes connected to the charging sources in the positive supply line will allow either the charger or the solar panel to lift the voltage high enough to charge the battery, albeit with about 0.6 volts dropped across the diode. Both cathode ends would be connected to the battery. This arrangement allows a positive current to flow from either or both charging sources at the same time, although in practice, one will generally be higher than the other. Also, if the AC charger's voltage is significantly higher than the solar panel, the charger may always charge the battery. You would need to regulate its output to be slightly lower than the solar panel when it's near it's minimum useful operating voltage. (note that the 0.6 forward bias voltage on the diode might prevent the solar panel from completely charging the battery if it has any voltage regulation on its output)
- Q: ok so when a solar panel is marked as a certain wattage dose that mean it makes that much in a day in an hour or constant, dose it still work at night or what ? is it worth it or is it more of a pain? can some one tell me what all the watts and volts mean ?? and can some one tell me what a kilowhat is in refrence to some thing i understand like howmany loads of laundey can you do wt a watt? i need help understanding this stuff?
- You okorder /
- Q: I have four power packs for solar lights. They have 3 AA .2volt batteries of 2450 mAh capacity installed in series for a total supply voltage of 4 volt maximum for the lights. I want to charge all four packs at once off a single 6 volt solar panel. With the four packs wired in parallel, what capacity output (wattage) panel do I need to charge the batteries in an 8 hour day?
- Each battery pack has the equivalent of only 2450mAh capacity at 4 volts, so for 4 battery packs like that, a total capacity of 9800mAh. Assuming that the solar batteries have no charge left after being on all night, and that day charging time equals night discharging time, the theoretical wattage would be 9800mA times 6 volts = 59 watts. Of course, battery charging is not 00% efficient, so you need more wattage than that. Plus, solar panels are rated at peak output at midday, while at other times of day their output is less than rated. And, the charging in parallel isn't a good idea, because real batteries have different internal resistances, some batteries would become overcharged, while other packs wouldn't get the charge they need.
- Q: Can solar panels be used for heating a greenhouse?
- Yes, solar panels can be used for heating a greenhouse. Solar panels can be used to generate electricity, which can then be used to power heating systems in a greenhouse. This can help maintain a consistent and optimal temperature for plant growth. Additionally, solar panels can also be used to heat water, which can be circulated through a greenhouse to provide warmth.
- Q: Can solar panels be used for camping or outdoor activities?
- Yes, solar panels can be used for camping or outdoor activities. Portable solar panels are designed to be lightweight and easily transportable, making them ideal for powering electronic devices and charging batteries in remote locations. They harness the sun's energy to generate electricity, allowing campers to have a reliable and sustainable power source while enjoying the outdoors.
- Q: Can solar panels be installed on tile roofs?
- Yes, solar panels can be installed on tile roofs. However, the installation process may require additional care and expertise to ensure that the tiles are not damaged during installation. It is recommended to hire a professional solar installer with experience in tile roof installations to ensure a proper and secure installation.
- Q: if you know the area of the panel can u calculate for the wattage or voltage of the panel..
- One square meter of solar panels can produce up to 50 watts of maintenance-free power for up to thirty years. The most common solar panels are for 2 V applications. For sq meter: I = P/V = 50/2 = 2.5 A A single solar cell always produces a voltage of approximately 0.5 volts, regardless of its size. For higher voltages, you have to connect individual cells in series to add their voltages. The larger the solar cell, the greater the current will be. You can also connect cells in parallel to increase current. Hope this helps!
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Solar Panels California Polycrystalline CNPV-140W High Performance 36 Cell
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 pc
- Supply Capability:
- 100000 pc/month
OKorder Service Pledge
OKorder Financial Service
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