270w Solar Module /Solar Energy/Good Quality

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
10 watt
Supply Capability:
100000 watt/month

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Product Description:

 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
270w Solar Module /Solar Energy/Good Quality

Company Profile

China National Building Material (CNBM) Group Corporation

270w Solar Module /Solar Energy/Good Quality

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 clientsmay 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.

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:kilowatt solar panel help?
You would be amazed how often I have answered this question. The answer is that it depends on your latitude and local weather . Let's see if I can give you enough information so that you can determine the answer for yourself. A kW solar panel is rated at kW when it is exposed to a solar flux of kW/m^2 (called a peak sun hour). There are readily available tables of effective peak sun hours per day by city (see Reference ). Let's use Fairbanks, AK as an example (it is the first line of the table). Fairbanks get an average of 3.99 of peak sun hours per day on average. So your panel would produce 3.99 kW*hr per day on average.
Q:How much power does the solar panel produce?
I sincerely doubt that you have a solar panel that is 4% efficient at converting sunlight to electricity.
Q:Solar panel help please?
Solar water heating is low technology. There are do it your self plans for it all over the internet. There is no electricity involved. Simply laying a garden hose on the ground in the hot Sun can heat the water to really high temperatures. Just have a shutoff nozzle on the hose, turn on the tap and open the nozzle until water comes out and then close the nozzle at the end of the hose. Let the hose full of water sit in the sun for an hour or so and then open the nozzle and feel how hot the water is that comes out. Be careful, because it can be so hot you can get a burn! When the gallon or so that can fit in the hose has all come out and is replaced by other water from the tap, it will feel cold again. Close the nozzle and wait another hour to heat it up again. A solar hot water heater is just a very long coil of pipe in the Sun, maybe with a pump to slowly circulate water from a holding tank so you can make and store more hot water that fits in the hose. Solar electric power is completely different. It uses semiconductor devices called solar cells to make electricity directly from light. Many of solar cells are usually arranged into large panels to make larger amounts of power. In electricity, Watts = Volts * Amps. Battery capacity is usually measured in Amp-hours. Small solar panels are often designed to produce electricity at 2 volts. A 60 Watt, 2 volt panel makes 5 Amps of electric current, because 2*5=60. So if you use it to charge a 2 volt battery with a capacity of 5 Amp-hours it will take hour to charge. A 0 Amp-hour battery would take 2 hours to charge with the same panel.
Q:How to connect solar panels to batteries?
20 volts is a common open-circuit voltage for nominal 2v panels. The panels put out about 5v at full load. If the panel puts out little enough that it takes 20 hours or more to put a full charge in the battery you can get by without a charge controller - just keep the cells topped up with distilled water. A charge controller will do a more efficient job, though. The most efficient charge controllers use what's called Maximum Power Point Technology (MPPT) which lets the panels operate at their most efficient point throughout the battery's charging cycle. Available on OKorder. The charge controller should have the same or higher wattage as the panels it controls - if you're not sure of wattage, assume that they are the same as similar area panels you find for sale. Before buying a charge controller, connect the panels through an ammeter to a discharged battery. They may have been trashed because of damage and low output. You need at least an amp for trickle charge, 5 amps for reasonable recharge times.
Q:If I shine different color lights (bulbs) on a solar panel, will it affect the electricity output?
Q:How can I adapt an automotive reglator to a solar panel?
solar panels will naturally produce a certain DC voltage which is what your battery needs - the current will vary based on the sun light. You need probably 4V to have some over voltage. So based on your specs look at having at least 4 V but not too much over that (tells you how many panels you need in series) I would have blocking diodes (probably the solar cell has them built in) to insure the battery does not discharge thru the panel.
Q:What are the main components of a solar panel?
For vacuum tubes solar heaters the main component include: solar tank, vacuum tubes, solar frames, and the pipelines and fittings of whole system
Q:What is a disadvantage of a solar panel?
It needs some battery banks in order to store the energy that will be useful during nighttime if less energy is stored in the batteries due to poor weather condition the effectivity of it is minimized. It has some limitations like you need more batteries in parralell to store more energy from solar cells, and it needs to be fully recharge the next day after it is discharged at night.
Q:Solar panel angle question..?
2.20 approximatey (2 /4 -- ish) X = (tan7)(8/tan45)
Q:how does solar panels work?
Solar panels collect solar radiation from the sun and actively convert that energy to electricity. Solar panels are comprised of several individual solar cells. These solar cells function similarly to large semiconductors and utilize a large-area p-n junction diode. When the solar cells are exposed to sunlight, the p-n junction diodes convert the energy from sunlight into usable electrical energy. The energy generated from photons striking the surface of the solar panel allows electrons to be knocked out of their orbits and released, and electric fields in the solar cells pull these free electrons in a directional current, from which metal contacts in the solar cell can generate electricity. The more solar cells in a solar panel and the higher the quality of the solar cells, the more total electrical output the solar panel can produce. The conversion of sunlight to usable electrical energy has been dubbed the Photovoltaic Effect. The photovoltaic effect arises from the properties of the p-n junction diode, as such there are no moving parts in a solar panel.

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