• Polycrystalline Small Solar Panels 30W 50W With High Efficiency System 1
  • Polycrystalline Small Solar Panels 30W 50W With High Efficiency System 2
Polycrystalline Small Solar Panels 30W 50W With High Efficiency

Polycrystalline Small Solar Panels 30W 50W With High Efficiency

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
100 watt
Supply Capability:
1000000 watt/month

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Item specifice

Material:
Polycrystalline Silicon
Max. Power(W):
30
Number of Cells(pieces):
7

Introduction of  Poly solar panels CNBM

Polycrystalline  Solar Panels 30W 50W With High Efficiency

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 Small Solar Panels 30W 50W With High Efficiency

Feature

1.Solar Cell : High efficiency crystalline solar cell. Even if under the weak light, the solar module can produce maximum power output.

2.Tempered glass (toughened glass): Anti-reflecting coating and high transmission rate glass increase the power output and mechanical strength of solar module.

3.EVA and TPT: Using high quality EVA and TPT to prevent destroying and water.

4.Long lifetime: ≥25 years; Less power decrease.

5.Resisting moisture and etching effectively, not effected by geology.

6.The certificate issued by international authority: UL, TUV, IEC, VDE, CE.

 

Main Solar Panel Specification

Characteristics of  Poly solar panels CNBM

Max Power Voltage Vmp(V) 

30.3

30.8

31.1

31.4

31.85

Max Power Current Imp(A)

7.60

7.64

7.73

7.81

7.85

Open Circuit Voltage Voc(V)

36.1

36.6

37

37.3

37.68

Short Circuit Current Isc(A)

8.50

8.55

8.65

8.75

8.85

Max Power Pm(W)

230W

235W

240W

245W

250W

 

Temperature Coefficient of Cells Poly solar panels CNBM

NOCT 

45 ± 2

Temperature Coeffucients of Isc (%/)

 0.0492

Temperature Coeffucients of Voc (%/)

-0.3374

Temperature Coeffucients of Voc (%/)

-0.4677

 

Mechanical Data of Poly solar panels CNBM

Dimension 

1638 ×  982 × 40 mm

Weight

19.5 kg

No. of Cells and Connections

60 (6 ×10)

Tolerance

0 ~ + 5 W

Cell

Monocrystalline Cell 156 × 156 mm

Packing

624 Pcs/40ft(H) Container

 

Limits of Poly solar panels CNBM

Operating Temperature

-40 to +85

Storage Temperature

-40 to +85

Max System Voltage 

1000VDC(IEC) / 600VDC(UL)

 

Guarantees of Poly solar panels CNBM

Products Guarantee

12 yrs free from defects in materials and workmanship

Performance Guarantee

No less than 90% within 10yrs and no less than 80% within 25yrs

Certificates 

TUV(IEC61215&IEC61730),VDE(IEC61215&IEC61730),UL,CE

 

Packaging Information

Package:26pcs/box

Quantity:1 box/pallent

Loading Capacity:952pcs/40ft

Q:Can solar panels be installed on a shopping mall or retail complex?
Yes, solar panels can be installed on a shopping mall or retail complex. In fact, many commercial buildings have already embraced solar energy as a way to offset their electricity consumption and reduce their carbon footprint. By installing solar panels on rooftops or parking structures, shopping malls and retail complexes can generate clean and renewable energy, leading to cost savings and environmental benefits.
Q:Monocrystalline panels are sooo expensive! Thanks for reading.
Since you are asking for a rather technical answer you should be aware that solar panels come in several varieties. Two broad categories are photovoltaic panels which have achieved marketable efficiencies of around 24% and solar thermal panels which are routinely achieving efficiencies of between 60 to 80% while they are also much cheaper than photovoltaic panels. So the short answer is solar thermal panels. But what can you do with solar thermal energy. The answer is just about everything you can do with light energy. Sometimes additional equipment makes the efficiency drop to near that of photovoltaic panels. The trick is to keep the devices as simple and as efficient as possible. Solar thermal can of course be used to heat our homes. But it can also be used directly for air conditioning. The type of air conditioner uses a slightly different principal but it is one of the oldest that was once used in ice houses before refrigerators. It is known as an absorption system. At some point you may want to make electricity from the sun's heat. The most efficient commercial systems are not photovoltaic but solar thermal. There are several commercial systems where increased scale improves efficiency. The most efficient is a solar parabolic dish system combined with a stirling engine. At around 30% efficiency it beats photovoltaic and other thermal systems. At this level of commercial development, the various systems are more often described as solar collectors rather than panels.
Q:solar panels!!they are fantastic! cause they are the new way of quot;chargingyour home, without killing the earth!would you install them, or not? and make sure you say WHY
I believe the best economy comes out when a completely green house is built. Solar panels are expensive, and I'll rather use some of the investments to build different back-up systems, instead of bying solar panels for it all. If I build another house, my fancy stuff would be the green stuff. The house will have a water radiator heating system and a heat pump to circulate warm or cold air in the house. Heat pump also used to heat water for heating system. I'll use solar panels to make enough electric power . charging a deep cycle battery pack for back up power, 2. to power heat pump, fridges., freezers, and water pumps, when I'm not home at the house. When I'm home I'll run a bio-fueled(bio-waste and pellets or firewood) powered steam engine with a 0KW 0-220V generator when I need electric stove and oven, dishwasher and laundry appliances. I'll use a wood stove, BBQ and oven on the porch for summer cooking. I'll use excessive heat from steam engine for heating water tank. I'll also have an bio-fueled (waste and pellets or firewood) water heater for winter heating back-up. Of course I'll make sure I'm connected to the electric grid, so I can get credit from power company for the excessive electricity that will occasionally come out from solar panels. Steam engine can be replaced by diesel powered 0KW generator, if it's possible to fuel it with veg-oil home made diesel fuel. Depends whats most accessible at my living site.
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?
Nope; I see no escape. Best advice I can give is this: sell out and move to a single home residence that has no HOA. If you want solar, I believe the main roofline should run east-west, so that the south exposure of the roof can be easily and economically populated with panels. APS is better than SRP wrt solar ....maybe. Im not sure, everythiong around here is APS so there's no balance. Ive occasionally heard rumors from SRP folks who are unhappy.... check into it before you buy.
Q:The intensity of sunlight at the distance of the Earth's orbit is 380 W/m2. An Earth-orbiting satellite has a solar panel that measures .35 m by 4.86 m, which converts solar energy to electrical energy with an efficiency of 26%. In one hour, how much electrical energy does the panel produce? Assume that the satellite's attitude control jets keep the panel oriented perpendicular to the incoming sunlight.
380 W/m2. An Earth-orbiting satellite has a solar panel that measures .35 m by 4.86 m, which converts solar energy to electrical energy with an efficiency of 26%. In one hour, how much electrical energy does the panel produce? 380 W/m? x .35 m x 4.86 m x 0.26 = 2354 watts energy is watts*time E = 2354 watts x 3600 sec = 847472 Joules or, E = 2354 watt-hours
Q:Can solar panels be installed in a desert environment?
Yes, solar panels can be installed in a desert environment. In fact, deserts are often ideal for solar panel installations due to their high levels of sunlight and minimal cloud cover. The dry climate also helps to minimize dust buildup on the panels, making maintenance easier.
Q:When I make a solar panel, what do I use to store the energy. For example I am going to make a solar panel to power my lights in my room. But I dont want the lights only to come on when the sun is out because that would be very pointless. So... Do I use the panels to charge something like a car battery and then run wires from the battery to an extension chord which will go to a surge protector? It sounds awesome, but I have to put it all together. The help is very appreciated. Thank you guys.
First of all you seem to be talking about making a solar photovoltaic panel instead of a solar thermal panel. Most solar panels will produce DC electricity. Your house uses AC electricity. You can set up the solar photovoltaic panels to send their current to charge a battery bank and then you can tap into that battery bank and send the power to a voltage inverter to change the power to AC. The better inverters will do a better job of this. The system has to be matched and sized properly. If you are not familiar with electrical work you should have someone who is more knowledgeable help or do the work. Good luck with your project.
Q:Can solar panels be connected directly to motor?
The sun is irradiated on the semiconductor p-n junction to form a new hole-electron pair. Under the action of the p-n junction electric field, the holes flow from the n region to the p region. The electrons flow from the p region to the n region, and the current is formed after the circuit is turned on.
Q:I am completely ignorant on this subject. I was just wondering out of curiosity of how many solar panels and equipment that it would take to run a central ac for a 2500 sq ft home and a pump for a medium sized pool. I'm talking running ac for like 8 hours a day to keep around 65-70 degrees and running the pump 24/7. Just looking for a general ballpark answer.
Solar panels are not going to be able to run a pool pump 24/7. They will only produce their rated electricity for 4 to 8 hours a day. For the balance you will need a grid connection or a battery backup. Running the AC would require different power levels depending upon humidity, outside temperature levels, solar gain for the house, and insulation levels. An underground house in Maine will be much easier to AC than a Glass house in Arizona. First find the power requirements. If you had the existing equipment they will have a label with the power requirements or the minimum breaker required if nothing else. For example the pool pump may require a 0 amp 240 breaker while the AC may require a 30 amp 240 breaker. That would be 2400 watts for the pump and (30 x 240) 7200 watts for the AC or a total of 9.6kW each hour of operation. (max) You will next need to find the rated capacity of the solar panels. If each panel were rated at 300 watts then you would need 32 panels for the daytime use and perhaps more to fill in a battery backup. All the numbers are very rough estimates.
Q:Can solar panels be used in areas with high pollution or smog?
Yes, solar panels can be used in areas with high pollution or smog. While pollution and smog may reduce the efficiency of solar panels to some extent, they can still generate electricity in such areas. However, it's important to regularly clean the panels to maintain optimal performance.

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