20W Poly NEC Solar Panels - Small Solar Panel Manufacturer in China CNBM

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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.

20W Poly solar Panel Small Solar Panel Manufacturer in China CNBM

Specifications:

Tolerance	+/-3%
Cell	Polycrystalline silicon solar cells (156 x 156mm)
N0. of Cells	60 (10 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 of 86km/h

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:

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: Are solar panels safe?: Yes, solar panels are safe. They are designed and installed to meet strict safety standards. They do not produce any emissions, and the risks associated with solar panels are extremely low. However, it is important to ensure proper installation and maintenance to maximize safety.

Q: I know absolutely nothing about electronics but have a lot of money. I am thinking of buying the Sunforce 3730 30W monocrystalline solar panel (the best I could find that was that size or smaller). What would be a good battery to go with it? I am thinking of buying a 2V Concorde Sun Xtender (again, the best I could find). But how many batteries will I need? I want enough batteries that it would take the solar panel 2 days to completely charge them from empty (bearing in mind the unavoidable inefficiencies like cloudiness/changing sun angles). Also, what other stuff would I need, like I hear something about a quot;charge controllerquot;? Any suggestions would be appreciated.: How many batteries you will need depends on what you are planning to do with them which you did not mention? Sunforce makes a 30 amp charge controller part no. 60033

Q: if I have a battery bank of of 6 L-6 Trojan batteries, 6V 390AH, wired in series parallel to give me 2V at 70AH (or 4,040WH) what kind of solar panels should I purchase assuming I have 8 hours of sunlight, a solar tracking system and I want to make sure I can fully recharge my batteries everyday if i use up all the power every night?i understand there are efficiency issues to consider which i have not calculated in yet. thanks.: If okorder /... yet, it's worth browsing the off-grid section. 8 peak equivalent sun hours a day on average is very achievable with tracking, but are you sure you really want to spend on tracking? It's a lot of trouble and expense - might be cheaper just to get more panels. Also be aware that when you have a lead-acid battery bank capable of (say) 000 Ah, that is the capacity that the batteries could supply as a one-shot deal. If you ever took that much from them, they would be ruined. Typically, you would try to take only 20% of the capacity before recharging, although some batteries let you take 50%, with reduced life. Have you considered wiring the batteries as 36 volts? There would be more efficiency, and less problems with equalizing the batteries when charging. Unless 2 volts is really the output that you need most. Sorry to redirect you, but I can't recommend that forum too highly. Lots of considerations.

Q: Can solar panels be installed on bus stops or shelters?: Yes, solar panels can be installed on bus stops or shelters. This allows them to generate electricity from sunlight, which can be used to power lighting, signage, and other amenities at the bus stops or shelters. It also helps in reducing reliance on grid electricity and promotes the use of renewable energy sources.

Q: How much energy can a solar panel produce?: The amount of energy a solar panel can produce depends on various factors such as its size, efficiency, location, and the amount of sunlight it receives. On average, a typical solar panel can generate between 250 to 400 watts of power per hour.

Q: i am starting to consider getting solar panels instead of paying electric bills which are somewhat higher now than they used to be: Depends on the size of the house and the average number of sunny days in your location, and how careful you are with your usage. Many houses too have solar panels that only provide part of the electricity needed. A medium sized house in a sunny climate might need a 4.0 kW system, which could mean6 x 250W solar panels,a roof area of 27 sq meters.The average energy use in a sunny country like Australia is 20 kW of electricity a day. To catch that much electricity on your roof you need a 4.0 kW system. In Australia you can buy reasonable quality systems for about $2 a watt (factoring in federal government rebates). This means a 4.0 kW system might cost $8,500. This is not cheap, so it makes sense to cut down your energy use first. :)

Q: I'm doing a science fair experiment with a tiny two-inch solar panel that only gives off like .5 volts of energy, but I need to know how many volts an average sized solar panel (like one you'd get to run your house) would produce. And how many panels do people usually get?: 2 volt and 24 volt are both common sizes. They are rated in voltage and watts. So you add the watts of the panels and buy enough to produce the amount of watts you need. For example, if you need 400 watts of power at 2 volts, you would buy four 00 watt 2 volt panels and connect them in parallel.

Q: Are solar panels safe for the environment?: Yes, solar panels are safe for the environment. They generate clean and renewable energy by converting sunlight into electricity, resulting in no harmful emissions or pollution. Additionally, solar panels do not deplete natural resources and have a minimal impact on ecosystems when properly installed and maintained.