Polycrystalline 250w Solar Module /Solar Energy

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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

Solar power system provides alternating current and direct current, which is produced by the modules transforming solar power into power, to home lighting, household appliance and other DC appliance, such as cell phone and laptop.

Solar power system is widely used in area lack of power, for example house power supplying, monitoring, communication base, fire prevention in forest area, pasture and meadow, aquaculture etc.

Solar DC Lighting System

Multiple protection system, safe and reliable performance.

Integrated and portable design, easy operation.

DC5V, DC12V, AC220V output, wide range application.

Clean engergy, cycle use.

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

Polycrystalline  250w Solar Module /Solar Energy

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.

 

Advantages:

1.Solar Energy&green energy.

2. Easy to install, operate and maintain.

3. Ideal lighting products where normal electric is not convenient.

Packing details:

Quantity of carton :3pcs 

Color Box size: 28.5*11.5*487.5px , 

2.66kg/pc 

Carton size: 36.5*31*575px 

G.W/N.W: 8.7/8.0 kg

Our services:

1. Sample: Sample is available. Please send us email about your detail consignee information: name, address, zip code and tel. Then we will contact you and send samples to you.

2. Small order: We can accept small order for this product. Please let us know your order quantity.

3. Customize: We accept OEM service and can customize products as customers' design.

4. After-sales service: We will give customers active feedback within 24hours after receive any of customers' questions.

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.

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- Inquire about price/MOQ

Q:Chem question regarding using solar panels ....?
It is not that simple. There are 3 main types of solar cells. Monocrystalline silicon is the most efficient and produces the smallest solar cells, and therefore the smallest panels. Poly-crystalline (or multi-crystalline) silicon produces the next most efficient type of cells and are a popular choice. Amorphous (or thin-film) silicon uses the least amount of silicon and also produces the least efficient solar cells. This means thin film system take up more area than the other two; an important factor to consider in relation to possible future upgrades; i.e. if you'll have enough space left to do so. The North (in the Southern hemisphere) or South (in the Northern hemisphere) facing roof collects the most energy. So this biases the roof area required. Your energy usage can be changed. Hot water (a major energy user) could be better using direct solar heating with peak demand boosting, either from mains or solar. There are other possibilities, either to reduce demand or to provide energy from other sources. Not all sunshine hours are equal. Hours around midday are far more productive than hours later in the day. This must be factored in.
Q:Solar Panels and a Car Headlight?
It should illuminate two auto headlights on a sunny day, if it really generates 50 watts at 2 V. On a cloudy day, I don't know. It depends on how cloudy it is.
Q:Why don't scientists use the design of a tree for solar panels?
solar panels do not use generators, but i like your idea, very creative.though i don't see the practicality of this being used commercially, i think it would make a great solar promotional piece though! off-subject, it is time we stop looking at the upfront costs of things and start looking at what the long term costs are. most green-technology, although expensive at first, end up saving tons of resources and actually increase profits of businesses! studies show that people who work in a green building tend to be happier which benefits health, more excited to go to work due to the business's environmental ethics, are more productive because of natural lighting, and are more efficient because more work is getting done. green buildings can actually boost the efficiency of a business! thus saving tons of money and reducing tons of waste. Doesn't this just make sense to you?
Q:Are photovoltaic cells the same as solar panels?
Solar panels are covered with photovoltaic cells that convert sunlight into electricity. So photovoltaic cells are part of solar panel. renewableenergyarticles.blogspot....
Q:What size and watt solar panel?
I think that typical solar panels are 2'x4' and produce something like 800-000 wh per day. (That's 0.8 - kwh per day.) More in the summer, less in the winter, if they're aimed sort of at the sun. There are newer, more expensive panels that produce more. There are also thin film panels that are less expensive, and probably more sturdy. You then have a couple choices. In a house, you'd have an expensive inverter to connect to the utility power, so you can have power at night when your panels aren't generating anything. In a trailer, you want 2-4-6 deep cycle car batteries to store the power. Then you could have an inverter to convert that power to 20v AC, so you could use normal appliances. Or, you could buy appliances that run on 2 volts DC. Maybe a combination of both. You'll need to figure out how much power you're going to use, so you know how many panels and batteries you're going to need. The calculation is easy. Figuring out how much power you need is hard. You need deep cycle batteries because you can repeatedly charge them way up and run them way down. Ordinary batteries die fairly quickly when you do that.
Q:How many solar panels do we need to power the US?
well the main problem is that the the solar panels are ineffecent due to their 5 lays(that is what i hunrd they are useing in Gemrnay). Also if i remember right we are at a 20% conversion rate on solor panels. their is 2 problems with solar panels. the weather they drom in effeceny everytime the a cloud get in the way of the sun. what are u doing to do when it gets dusk time? tho neucler power is a good idea. it is only good for the Base load not for the peek power times... IE; Quiting time when everyone gets home and flips on the AC. The best thing really would be Geothormal, nucluer, wind and some solor. but that is for the west out word.. the south is still SOL. So they would need bio fules, better coal plants and fuel cells. (witch is where i am going to start working on here soon )
Q:where to face solar panels?
The following links is a sun angle calculator which I find very helpful during my days of doing project about solar panel. The calculator will give you the accurate location of the sun. Solar panel work best when it is directly facing the sun. All you have to do is key in your location details and it will provide you with two most important details: azimuth angle and altitude angle. Azimuth angle is the East angle where the Sun is relative to the South while altitude angle is the tilt angle of the solar panel throughout the day. By using these two angles, you will maximize your exposure of solar panels. However, if you are experiencing rainy or cloudy days, horizontally mounted solar panels is the most efficient.
Q:Solar panels require big initial investment, how can I check if the money I save will be more than that?
you have a really good formula for figuring out what you will save. as long as you dont live the the arctic during the winter months you should be fine! this investment will definitely pay off in the long run and help the environment. just like the other guy said, the utility company would have to pay you back any excess energy you produce that you dont use! you can calculate how much your average electric bill is and then compare by how much you would be saving. you can multiply the number by 5 and 0 years and so on to see how much you would save ultimately! this is a great way to save your own money and never have to be dependent on the electric company again! yes you will definitely need a battery to hold a charge for overnight use good luck!
Q:solar panel help needed ?
One square meter of solar panels can produce up to 50 watts of maintenance-free power for up to thirty years. The most common solar panels are for 2 V applications. For sq meter: I = P/V = 50/2 = 2.5 A A single solar cell always produces a voltage of approximately 0.5 volts, regardless of its size. For higher voltages, you have to connect individual cells in series to add their voltages. The larger the solar cell, the greater the current will be. You can also connect cells in parallel to increase current. Hope this helps!
Q:what is the best solar panels to buy?
In California, if a house is now connected to the grid, typically, they stay connected to the grid even after installing solar electric panels. In this way, no batteries are required to run at night or over cloudy periods. And the house gets credit for energy generated in excess of usage. This scheme also means that you can size your array to only generate a portion of your electrical usage, which is also the usual decision. Since you mention cooling, an air conditioner is a big power drain. We have no A/C, so a modest 3 kW array is enough to supply all our electrical needs. If we had central air conditioning, that number might be doubled or tripled. Your best bet is to contact a local solar installer to do an analysis and quote on your house. How much it costs, and whether you actually will save money in the long run, depends on where you live, and how much electricity you use. Our system cost $2,000 after all rebates and credits.

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