270w Solar Module for Flat Roofs / Solar Energy / Solar Panels / Good Quality
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 watt
- Supply Capability:
- 100000 watt/month
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Packaging & Delivery
Packaging Details: 25PCS/Pallet, carton box with wooden pallet or wooden box with pallet
Delivery Detail: 7-15 days according to the order quantity
Product Description
A Grade 250w high efficiency Poly PV Solar panels
Max Power Voltage Vmp(V) | 31.5 |
Max Power Current Lamp(A) | 7.94 |
Open Circuit Voltage Voc(V) | 37.5 |
Short Circuit Current Isc(A) | 8.72 |
Temperature Coefficients of Isc (%/℃) | 0.0825 |
Temperature Coefficients of Voc (%/℃) | -0.4049 |
Temperature Coefficients of Pmp (%/℃) | -0.4346 |
Max Power(w) | 250 |
We now provide
• Monocrystalline Solar Panel
• Polycrystalline Solar Panel( multicrystalline silicon Solar Panel)
Features of our products:
• High conversion efficiency mono/poly-crystalline amorphous silicon solar cells
• Modules incorporate high performance bypass diodes to minimize the power drop caused by shading
• High transmittance, low-iron tempered glass
• High performance EVA encapsulant to prevent destroying and water.
• AI frame: without screw, corner connection. 8 holes on the frame can be installed easily
• Good performance of preventing from atrocious weather such as wind and hails
Company Profile
China National Building Material (CNBM) Group Corporation
CNBM International Corporation is a professional solar panel manufacturer in China for CNBM brand . Silicon panel ( silicon module), as our main product, has high quality and good service. Our products are very popular in Europe, Australia, England, Middle East, Mexico, Argentina, Chili, Singapore and Africa.
Furthermore, our products have gained international authorized certificates like TUV, UL and CE.
China National Building Material (Group) Corporation (CNBM), established in 1984, is one of the largest State-owned group corporations of building & mechanical materials which specializes in the design, manufacturing and distribution of building materials in the world.
As the whole world turns “green”, CNBM enters into the Photovoltaic Industry in 2005.After 6 years' fast growth, now our annual capacity is 500MW solar panel and 500MW solar cell.
FAQ
We have organized several common questions for our clients，may help you sincerely：
1.what price for each watt?
it depends on the quantity, delivery date and payment terms,
2.what is your size for each module? can you tell me the parameter of your module?
we have different series of panels in different output, both c-si and a-si. please take the specification sheet for your reference.
3.Can you provide the peripheral products of the solar panels, such as the battery, controller, and inverter? If so, can you tell me how do they match each other?
Yes, we can, we have two companies for solar region, one is CNBM International, the other is CNBM engineering Co.
We can provide you not only the solar module but also Solar Cells, the off grid solar system, we can also provide you service with on grid plant.
4What is your warranty system?
Our product performance guarantees for 25 years
• 12 years guarantee for workmanship
• Timeliness of delivery
• Quality Products certified (TÜV, UL, CE, ISO)
5.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.
6. Can you do OEM for us?
Yes, we can.
7.How long can we receive the product after purchase?
In the purchase of product within three working days, We will arrange the factory delivery as soon as possible. The pecific time of receiving is related to the state and position of customers. Commonly 7 to 10 working days can be served.
- Q:What happens to solar panels during extreme weather conditions?
- During extreme weather conditions, such as hurricanes or heavy snowstorms, solar panels can be damaged or temporarily rendered ineffective. Strong winds, flying debris, or heavy snow can cause physical damage to the panels, such as broken glass or dislodged components. Additionally, excessive snow accumulation can cover the panels, reducing their ability to generate electricity. However, modern solar panels are designed to withstand most extreme weather conditions and are tested to meet certain durability standards.
- Q:i have a calculator with a solar panel what could i power with it? like could i hook it up to a psp even though it will take forever to charge? and how would i do this?
- It wouldnt be worth your time really to try and hook it to a psp. You would have to build a circuit to match the voltage of the solar panel with the voltage of the psp. one of the few things i can think of would be a model windmill that used a very small solar panel to turn a very small motor attached to the rotor on the windmill. If you want a solar panel to charge your psp, look on OKorder, theres plenty of cheap low wattage solar panels that with a small solar panel regulator can put out enough 2v dc energy to possibly charge your psp
- Q:Why would someone use a solar panel? Does it have to do with the economy right now, global warming, or what?
- It turns energy from the Sun directly into usable electricity and is very useful if you are far away from the power grid or want an alternative electricity source. Since energy prices must steadily rise and Solar cells are getting cheaper, it is likely that in several years Solar panels will provide electricity as cheaply as the big power companies who maintain our power grid.
- Q:Can solar panels be used in areas with limited space?
- Yes, solar panels can be used in areas with limited space. There are various options available, such as rooftop solar panels, solar canopies, or even solar panels integrated into building materials. These solutions are designed to maximize the utilization of limited space while still harnessing solar energy efficiently.
- Q:I recently got into solar panels, I have little background in electronics but I have done a little electrical work in the past and just want to make a small 36 cell panel to power a 2v battery that would run my a small tv (9 inch) and PS3 for a few hours every night. I have been looking up on how to do it before I get in over my head and I have a few questions.... After you solder all of the cells together then what? Do you hook all of the rows of cells together somehow? Can you connect them straight to a battery? After you hook to the battery do you hook up a power inverter to get the 2 AC plugs that would be needed? Thanks in advance for any help....
- i'm involved approximately do-it yourselfers, i'm one, yet... Sorry to inform you, yet connecting image voltaic panels to grid capacity will require an electrician. there are a number of standards for specific disconnects to circumvent harm to the utillity corporation workers that would desire to be seen. you will additionally might desire to have an inverter sized to verify your panels. the straight forward answer is to connect your panels to something specific, without connecting it into your place wiring. An occasion is to connect your water properly pump to image voltaic capacity and disconnect it from the grid. yet you will nonetheless want an inverter and could might desire to calculate the capacity demands of the pump and the quantity of capacity available out of your panels, which varies via your longitude and variety. It sound like an straight forward element to do, yet without specific training and adventure you would be sorry in case you attempt this your self.
- Q:Can solar panels be installed on factories or industrial buildings?
- Yes, solar panels can be installed on factories or industrial buildings. In fact, it is quite common for large-scale solar installations to be implemented on such structures, as they often have expansive rooftops or open spaces suitable for maximizing solar energy generation. Installing solar panels on factories or industrial buildings can help offset power consumption, reduce carbon emissions, and provide a sustainable source of energy for these facilities.
- Q:Can solar panels be installed on water treatment plants or utilities?
- Yes, solar panels can be installed on water treatment plants or utilities. In fact, many water treatment plants and utilities are increasingly adopting solar energy systems to reduce their reliance on traditional energy sources and lower their carbon footprint. Solar panels can be installed on the roofs of these facilities or on nearby open spaces to generate clean and renewable electricity to power their operations.
- Q:I was just wondering what the minimum and maximm charging voltage and ampere is for li ion batteries. If i connect a solar panel, which only gets enough sunshine to generate voltage, will that still charge the battery, or would i have to series connect solar panels until they together reach 3,7volt?
- One lithium cell requires 4.2V to obtain its full charge, Never exceed 4.2V ! Output from solar panel if below 3.7V , nothing charge to lithium. Total charging time until the cell is full depending on the AH rate of cell and the charging current that solar panel can be provided. Suppose cell is rate 5AH, and the charging current from solar panel under full sun shine can maintain 0.5A ( use solar panel short circuit current rate from its specification as a reference ) , hence, 0 hours is enough. And be sure the solar panel can maintain 4.2V output at 0.5A . Remember, over charge lithium cell one time might reduce its life into half . Therefore, let the solar panel output passing through a precision regulator to maintain output is 4.2V is the best way, because, as cell reaches 4.2V , no more charging current is forced into cell ( automatic stop charging ). If you do not have the knowledge to make this simple variable voltage regulator with LM37K ( if you choose this way, buy solar panel output has at least 2V) , you may choose to do it manually by install a current meter and a variable resistor in series between the panel output to cell. By adjust the value of resistor, charging current can be controlled ( if you choose this way, buy solar panel output has as less as 6V ). Count the charging time with a clock and adjust the charging current from time to time to maintain 0.5A .
- Q:Can solar panels be used in areas with high levels of dust storms?
- Yes, solar panels can still be used in areas with high levels of dust storms. However, it is important to ensure regular maintenance and cleaning of the panels to prevent dust accumulation, which can reduce their efficiency.
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270w Solar Module for Flat Roofs / Solar Energy / Solar Panels / Good Quality
- Ref Price:
-
- Loading Port:
- China main port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 10 watt
- Supply Capability:
- 100000 watt/month
OKorder Service Pledge
OKorder Financial Service
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