Polycrystalline 250w Solar Panel Solar Energy

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
1 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

Company Profile

China National Building Material (CNBM) Group Corporation

Polycrystalline  250w Solar Panel 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.

 

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:What are solar panels made up of?
Solar panels (aka photovoltaic panel) are most often made up of thin wafers of crystalline silicon or cadmium telluride. As photons from the sun enter the photovoltaic cell, electrons are freed from the substrate when are then collected by wires that run throughout the panel. And as we know electrons=electricity!
Q:Solar panel battery charging?
it depends how big the panel is. a small trickle charger (like a 2W panel with built-in diode), just connect + to + and - to - (parallel) to trickle charge the battery. The diode will keep the batter from discharging through the panel when there is insufficient sunlight. for a large panel (like a 220W 24v panel), you best go through a charge controller. the charge controller has 2 leads for the solar panel input, 2 leads for the battery connection and 2 leads for the 2v load. just follow the instructions to connect the panel and battery to the controller, and MAKE SURE YOU USE THE REQUIRED FUSES. very straightforward stuff -- just RTFM
Q:Why do solar panels burn out?
You can search on solar panel failure mechanisms for scholarly works. Amorphous silicon thin-film panels go through an annealing, and power drops off after a couple years. This includes most of those flexible rubber mat type panels. That's why those are not used on serious installations. Serious panels intended for rooftop service generally come with a 25-year warranty, suggesting that the technology is more reliable than your washer, dryer, TV, computer, dishwasher, or water heater. One brand of panel had trouble about 0 years ago, but the manufacturer replaced all that were turned in, even paying shipping both ways. It was a problem with that particular model, not the technology. Our polysilicon panels have been on the roof for 3 years, now, and I've seen no sign of wear, yet, either electrically or mechanically.
Q:How much do solar panels cost?
Go with Stephen's answer. It typically costs $20-40K for powering a home so I would go with $00K's. If that was a plan for your school, look into wind power. Your school would most likely have to place it outside of town but its all the same in the end.
Q:What solar panel do I need?
They make panels now that put out 25 watts so about 8 panels would do it.
Q:Can You Choose Between Solar Panels And Aircraft Fuselage Report?
Solar Panels. Solar panels is a generic term for any semiconductor that converts solar energy to electrical energy. However there many different kinds of solar panels and constructed in different ways from different materials. There is the generic polysilicon solar panels for residential installation on one end of the spectrum. On the other end are very high efficiency (and expensive) solar cells used on the Mars Orbiter that are constructed of so called triple junction GaAs/Ge solar cells. In addition there are also the thin film solar cells that are being researched that use Cadmium Telluride (CdTe) to form junctions and make very efficient cells on very thin substrates. I would say that research into materials that can be used for solar cells is one of the hottest research fields right now. (That being said, I really did enjoy Airframe by Micheal Crithon. Whenever I'm in a plane during bad weather I always thing of the engineers that designed the plane... what assumptions did they make... what tradeoffs did they make... )
Q:Any help financially to buy solar panels?
Check with your Power Company, ours has had several $$$ Incentive Programs that they get involved with,Federal,State,and Private Sector. Just about anything High efficiency or Electrical saving,including Solar.
Q:WHAT ARE THE SOLAR PANELS ON POWER POLES?
I work in NJ and we started seeing them around our industrial park. I think it's probably some scam for the most part. Each panel isn't going to put out more than a few volts. Because they are so widely distributed about the only thing they might be good for is lighting a sodium bulb or something. A much more effective use if it was a serious / more efficient/effectively designed project, we'd probably be seeing farms of panels going up all over the place and on the tops of big-box buildings, but I'm not seeing alot of that.
Q:Where can I get damaged solar panels?
Test the battery. Connect the positive and negative terminals of the battery to the positive and negative probes of the voltmeter. If a voltage is read, the battery is still good. Remember, however, that this is a rechargeable battery, so if it is dead, it can be recharged.
Q:Self build solar panel ?
You would need a pretty hefty panel, the standard power charger is like 0 watts. You would need more than that for the overhead of charging a battery and converter loss. You would need a regulated supply, like a car ipad adapter, I seen them for like 20 bucks. They have to say Ipad , the ipod/iphone chargers have less power and would charge much slower.

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