Solar Panels Portland - Mono-Crystalline Solar Panel

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 500 Pieces pc

Supply Capability:: 8000000 Pieces Per Month pc/month

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Specifications

1.Power Tolerance:: 0~+3%

2.Product Defect Warranty:: 10Years

3.Power Output Warranty:

- 90%:: 12Years

- 80%:: 30Years

Module Type	NBJ-40M	NBJ-455M	NBJ-50M
Maximum Power at STC (Pmax)	40Wp	45Wp	50Wp
Maximum Power Voltage (Vmp)	18.7V	18.7V	18.2V
Maximum Power Current (Imp)	2.14A	2.41A	2.75A
Open-circuit Voltage (Voc)	22.3V	22.3V	21.3V
Short-circuit Current (Isc)	2.29A	2.58A	2.94A
Power Tolerance	0~+3%

Packaging & Delivery

Packaging Details:1.Pack with carton box and then into wooden box. 2.Pack with wooden box.

Delivery Detail:with in 30 days

Q: How do solar panels interact with the electrical grid?: Solar panels interact with the electrical grid through a process called net metering. When solar panels generate excess electricity, it is fed back into the grid, allowing homeowners or businesses to receive credits for the energy produced. During periods of low solar production, such as at night, electricity is drawn from the grid. This bidirectional flow of electricity enables solar panel owners to offset their energy consumption and contribute to the overall grid supply.

Q: Hi.How efficienent are solar panels? I mean, suppose we install a kw panel.. Wil it produce 5kw in 5 hours of good sun light?Or like if its 80 percent efficient, wil it produce 4kw and so on.Also, do the chinese solar panels give the same results as compared with panels from other countries?I live in india, so we get plenty of sunlight during the day.Thanks: Most okorder

Q: I have a 20 watt solar panel that I want to set up. I need to connect it to the solar controller but do not know what cable to use. I plan on adding more solar panels down the line. What would be the best cable to use?: How long is the run? 2 gauge is a good choice for runs up to 25 feet at 20 watts, if you are much further in your run, move to 0 gauge to reduce resistance of the wire itself in the circuit. Otherwise refer to the prevailing electrical code of your local unit government. This is a must if you plan to maintain insurance. At lower voltage, a little resistance means a lot. 4 gauge might be okay for 20 VAC, but the voltage drop on a low voltage system from resistance of the wire itself is measurable at 20 feet. It is the difference between a light fixture working or not. If you are planning on adding additional panels in the future, you can get terminal buss with screw hold downs at various vendors like Mouser or Digi key. Each panel can be on it's own screw, while the buss is common on the other side of the connection. one for the positive and one for the negative.

Q: How does the snow cover get removed from the panels?: Just okorder /... As an aside the efficiency of the panels will also be maintained if the panels are cleaned of dust and debris. The maintenance of removing snow and dust is one argument for having the panels on a rack on the ground. Solar Thermal panels are intended to capture the sun's heat. Two types that make hot water are flat panels and vacuum tube collectors. The vacuum tube collectors work better in colder and cloudy areas but their efficiency prevents heat loss that might melt snow. Most of a light snow will fall between them but you are back to maintenance with a heavier snow. Flat panels are less efficient and will melt a light snow off of the panels for a heavier snow you will need the roof rake. The last type of solar panel are solar air panels. These are most often mounted on the side of a house rather than the roof as they are intended to provide hot air to the living spaces. They are essentially like little greenhouses. Unless the snow is building up against the side of the house these should be free from a snow problem.

Q: I have made a 5v dc 52watt solar panel and I going to be trying to charger 4 2v dc 55ah batteries. I get about 6 hours of sun on my panel. Spec below, is that a big enough panel to charge the batteries???I have 30 3x6 solar cells wired together Cell Specifications: (Watts): .75 Wp (Amps): 3.5 Imax (Volts): 0.5 V max which is where I got my 5g 52watt max (if math is wrong plz tell me) The Battery type: 2Volt 55.0ah NB Sealed Lead Acid Battery. I am using a mppt solar charger.: OK your math on the solar panel looks correct, but you are missing some critical information. What is the load on your batteries and for how long is this load being applied. Calculate the amp-hour load to see if your solar panel can recharge your batteries with the amount of sun light available. A safe engineering standard is to have twice as much capability as required. If you have a 200 amp load for 7.5 minutes, this would be a 25 amp-hour discharge and will take your solar panel over 7 hours to recharge your batteries. Your solar panel can easily charge the batteries up to full capacity with out any load on the batteries, if the batteries are 50% discharged, this will take about 32 hours. CAUTION! I am assuming that you are hooking the batteries up in a parallel connection, that will give you over 200 amps of current. You should charge each battery up to full charge before you connect them together, if they are not at the same exact voltage when you connect them together, they will self adjust so that each battery is at the same voltage level, at 55 amps this could be a very large spark. Each cell, there are six (6) cells in a 2 volt battery, should be at 2.7 to 2.2 volts DC per cell at full charge. Make sure your battery has a voltage 3.02 to 3.26 volts open circuit or no load. This should be full charge if your batteries do not have this voltage level, say one battery is at 0 volts DC, it could have a dead or shorted cell. DO NOT use this battery until you can get it to hold a 3.02 to 3.26 volt DC level.

Q: Can solar panels be used in cold climates?: Yes, solar panels can be used in cold climates. In fact, cold temperatures can actually improve the efficiency of solar panels by allowing electrons to flow more easily. However, it is important to ensure that the panels are properly installed and maintained to withstand extreme weather conditions and snow accumulation.

Q: Can solar panels be installed on south-facing windows?: Yes, solar panels can be installed on south-facing windows. South-facing windows receive the most sunlight throughout the day, making them an ideal location for solar panel installation.

Q: I just bought a quot;00 wattsolar panel system to install on my house. I just wanted to know if by 00 watts, does that mean per hour, min, day week or what?: You will need many more to do any good.

Q: Can solar panels power an entire home?: Yes, solar panels can indeed power an entire home. With advancements in technology and improved efficiency of solar panels, it is possible to generate enough electricity to meet the energy demands of a typical household. Additionally, by installing a battery storage system, excess energy generated during the day can be stored and used during nighttime or cloudy periods, ensuring uninterrupted power supply.

Q: Can solar panels work in cloudy weather?: Yes, solar panels can still generate electricity even in cloudy weather. While direct sunlight produces the most optimal conditions for solar panel efficiency, they can still function and generate power in cloudy weather due to their ability to convert diffused sunlight into electricity. However, the electricity output may be lower compared to sunny days.

Our company is a High-tech enterprise, who is professional on manufacturing on solar photovoltaic products. We mainly produce the solar module and system. Our annual production capacity of solar module is 50MW.Meanwhile,we also undertake the design, installation and serviceonbothon-grid & off-grid system for home and power plant.

1. Manufacturer Overview

Location	Zhejiang,China (Mainland)
Year Established	2006
Annual Output Value	Above US$100 Million
Main Markets	North America 2.90% South America 25.60% Eastern Europe 4.83% Southeast Asia 9.18% Africa 1.16% Mid East 2.90% Western Europe 19.81% Central America 2.41% Northern Europe 9.95% Southern Europe 8.21% South Asia 0.97% Domestic Market 12.08%
Company Certifications	ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	Rotterdam,Hamburg
Export Percentage	81% - 90%
No.of Employees in Trade Department	6-10 People
Language Spoken:	English, Chinese, Japanese, German, French
b) Factory Information
Factory Size:	3,000-5,000 square meters
No. of Production Lines	5
Contract Manufacturing	OEM Service Offered Design Service Offered Buyer Label Offered
Product Price Range	Low and/or Average