250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

Ref Price:
Loading Port:
Shanghai
Payment Terms:
TT OR LC
Min Order Qty:
500 watt
Supply Capability:
1000 watt/month

OKorder Service Pledge

Quality Product

Order On-line Tracking

Timely Delivery

OKorder Service Pledge

Credit Rating

Credit Services

Credit Purchasing

Share to:

Product Description:

product description

 

 

  • Base stations - for mobil and internet provider

  • Polycrystalline silicon, also called polysilicon or poly-Si, is a high purity, polycrystalline form ofsilicon, used as a raw material by the solar photovoltaic and electronics industry.

  • Polysilicon consists of small crystals, also known as crystallites, giving the material its typical metal flake effect. While polysilicon and multisilicon are often used as synonyms, multicrystalline usually refers to crystalls larger than 1 mm. Multicrystalline solar cells are the most common type of solar cells in the fast-growing PV market and consume most of the worldwide produced polysilicon. About 5 tons of polysilicon is required to manufacture 1 megawatt (MW) of conventional solar modules.[2] Polysilicon is distinct from monocrystalline silicon and amorphous silicon.Military and Paramilitary base stations

  • United Nations and other Humanitarian Aid & Relief Agencies

  • Mining Contractors (exploration/drilling)

  • Emergency Services (Natural Disaster Organisations)

  • Road, Bridge, Pipeline Construction Organisations

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

product characteristic

 

The E-series photovoltaic module comes with a 90% (12-year) and 80% (25-year) of rated minimum peak power warranty and a 10-year warranty on workmanship and materials

Positive power tolerance 0 to +5W

Internal by-pass diodes across 20 series cells resists effects of shading
Passed 3rd party testing: Salt spray and Ammonia resistance
Conforms to UL 1703, ULC-ORD-C1703-01 and CE

 

detail parameter

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

 

technological process

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

250W Poly Solar Panel, Solar Cells with TUV, IEC, CE ,UL Certificate for Solar System

 

package&delivery

we pack goods with pallets and carton box

each one will be carefully examined by our staff.

 

 

Send a message to us:

Remaining: 4000 characters

- Self introduction

- Required specifications

- Inquire about price/MOQ

Q:how much money can I make a year for the electricy I sell from a solar panel?
Ultimately it depends on your utility and the country you're in. In countries like Germany, Spain and the UK, the utilities will pay a higher price for the power you produce then what they sell it to you at. Otherwise, in countries that don't have such arrangements, net metering is best where what you produce is discounted from the amount you buy per month therefore so long as you produce less than you use, you get the full retail rate, otherwise you may get only half the retail rate with some utilities. Obviously, the solar panels are rated and won't produce much more than the rated power, a 4 foot by 2 foot panel would usually be rated at 00 watts but in most situations will produce about 80 watts and would probably cost about $500 US installed. If you assume 8 hours of usable sunshine a day, 70% sunny days, a 25 year service life, monthly billing and 0 cents a kilo watt hour retail rate, you can expect at most a -.67% per annum return on your investment, that's a negative sign out front. Basically without any subsidies, you will lose money on the panel, sure you're get some money every month, about $.34 per month for that 00 watt panel but it won't make back it's money at at a rate of 0.0 per kwh. With subsidies it might be a good investment but it's still not a good deal without subsidies.
Q:why aren't solar panels for your house more affordable?
Technology okorder.com Good luck!
Q:Where do I find solar panels?
Home systems start at $30,000 and go up. There are federal income tax credits to help offset the cost, but you still have to pay up front, more than the average person can afford.
Q:How long does it typically take for solar panels to pay for themselves?
The payback period for a solar PV installation is based upon the cost of the installation compared to the savings achieved. Therefore if you installed a modest set of panels yourself, did not need on site electrical storage and did not have any permitting fees but did enjoy rebates you would be doing better than if the installation costs were high, the solar equipment was expensive, you had to purchase storage batteries, it was costly to maintain and permitting was absurd. On the other side of the equation if your electrical use is high, you perhaps own an EV or you can sell power at a high rate then the costs you will be offsetting will be higher and the payback period will be lower. If your electrical use is minimal, there is no time of use metering available the payback period will be higher. Some of the costs you may be offsetting may not be electrical. If you concurrently purchased an EV then you may be offsetting the cost of gasoline which would be higher than electricity. Overall rebates and incentives play a major role. I have seen payback periods as low as 3 years claimed (commercial installation with special city tax breaks) and as long as over 20. A bell curve would probably find most of the installations in the 7 to 5 year category. A solar thermal installation (for hot water, heating and sometimes AC) is far more efficient and most would be in the range of 2 to 8 years.
Q:What is the difference between Photovoltaic Panels and Solar Panels?
Solar panels collect energy from the sun and then provide it to a system that typically concentrates it. Solar energy comes to us in the form of heat and light. Photovoltaic panels take the light energy from the sun and convert it to electricity. Although the maximum efficiency is around 42% in the lab most commercial models you will see are from 8 to 22% efficient. Adding collectors together concentrates this energy into usable amounts. Solar thermal panels are from 60 to 80% efficient. They come in many different types and collect the heat energy from the sun. That heat may then be stored in some form of thermal mass where it becomes concentrated sufficiently to be used. Solar thermal panels can be used to heat a medium. This can be a phase change material, air, or water. Solar thermal air panels are cheap to make and offer a quick pay back period. Solar thermal panels for some heating and hot water systems circulate water. Vacuum tube collectors are solar thermal panels that may heat water directly or a phase change materials. They can operate better in cloudy and colder weather with more efficiency. Air and water panels are often called flat panels as a way to contrast them with vacuum tube collectors. Solar thermal panels often lead to some form of energy storage called thermal mass (water tanks, phase change materials, masonry walls and rocks.) Photovoltaic panels make electricity that is stored in batteries, used or sent to the general grid. Panels are only one way to collect solar thermal energy. Other types of collectors are used commercially and are often called simply solar concentrators. Some are called parabolic trough collectors and parabolic dish collectors.
Q:Home solar electricity advice? Making the solar panels accessible?
Modern solar electric panels rarely fail. Because of this, if you would be installing them over a roof that only has a few years left on it, it would be better to redo the roof, first. In the unlikely event that a panel needs to be changed, this can be done in 30 minutes or so, because the panels are mounted on racks, with everything simply plugging together. I have never personally seen a solar installation go bad, but from what I hear, the inverter (a box that goes in next to your electric service panel) is usually what burns out after 5 years, assuming the install was done right in the first place. If you were to call roofers to repair your roof, they would somehow be able to get to your roof, by ladders, or a special truck. Solar installers use the same kind of equipment. They won't have a problem getting up there. A solar electric system is actually a very straightforward thing. No matter who installs it, if there is a problem, another installer should be able to diagnose and fix it.
Q:Photodiode vs solar panels?
yes. Any semiconductor junction will convert light into electrical energy, just shine a light at an LED (connect LED to voltmeter) and you'll see a small voltage produced (if you configure the meter as an ammeter it will develop a very small current). Solar panels are just VERY large surface photodiodes.
Q:Im looking at getting solar panels.
Your problem will be the days that are too cloudy, rainy, (snowy won't apply since you will need A/C during summertimes) and the night hours when there is no sunlight. A battery might be okay for a while but if you have to have a good one. Is there is a battery that can run an air conditioner for long without crapping out! I don't think you will ever recoup your investment.
Q:how can i build my own, cheap, solar panels at home?
Build okorder.com
Q:How to connect solar panels to batteries?
You can use them without the regulator . Just make sure you use blocking diodes so the the power does not flow back into the panels . You can get those at radio shack of some electronic store or off OKorder for a few bucks .

1. Manufacturer Overview

Location
Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range