300WTT Solar Panel Price List and Solar Panel Manufactures in China

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6500 watt
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4000000 watt/month

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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

 

Mechanical & Limits Data

Dimension   (mm)

1640*992*40

NO of   Cells and Connections

60(6x10)

Weight(kg)

18.5

Tolerance

0~+5%

Cell

Polycrystalline Cell 156 x 156 mm

Operating   Temperature

–40 °C   to +85°C

Max   System Voltage(VDC)

1000

Packing

312PCS/20ft(H)   Container

 


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300WTT Solar Panel Price List and Solar Panel Manufactures in China

300WTT Solar Panel Price List and Solar Panel Manufactures in China

We are a Quality + Service oriented company with“Excellence at Each Step” approach, composed of the finest
components from TUV and IEC-certified partners around the world, modules consistently undergo a variety of

trials at the company’s Test & Development Centre, ensuring peak performance capabilities. The company is
committed to develop and provide the world with clean and renewable energy to ease the energy shortages as well
as human kind’s impact on the environment.



 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.

 

300WTT Solar Panel Price List and Solar Panel Manufactures in China

 


Now is a great time to go solar and harvest the power of the sun. Here is our top ten list of the benefits to installing solar power:

1, When installed, solar energy is free – no resources are consumed 
2, Help to lessen our dependence on heavily polluting coal power stations 
3, Fossil fuels can't last forever, future generations will appreciate the effort 
4, You are gaining energy independence - add battery backup power for even greater energy security 
5, The cost of electricity is only going to rise – insure against that rising cost 
6, Quality solar power and water adds value and appeal to your home 
7, Solar PV systems are easily upgraded in future - aim to make your house a net energy producer! 
8, Solar panels offer a long lifetime of low maintenance service, maybe 30-40 years 
9, Your friends will think you're great! 
10, You'll feel great for doing your bit for the environment!



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Q:solar panel design question?
Because we and the trees are trying to solve a different problem. We want electricity, a tree wants light (and some heat) for photosynthesis. In getting the electricity we use Silicon for solar panels. (Sometimes Gallium Arsenide). And we exploit the same thing in Silicon that allows them to be computer chips. The fact that they conduct differently when voltage is applied. But for a solar panel that is done essentially in reverse. We GET a voltage difference (electricity) from shoving energy through it. Look up junction bias on google or yahoo for explanation. But the DESIGN problem is: You have to couple these panels together the right way - according to their bias. You can't string them up willy nilly. There is a pattern. And when one breaks in this pattern. (I mean when the actual panel cracks, which they do easily as they are brittle). It can change the overall bias. This can make even be worse than if it was removed, it can actually fight against the working ones. The efficiency is there in arranging them like a tree, but the practicality of maintenance would be daunting.
Q:How to charge a Battery with Home Electricity and Solar Panel together?
No, don't connect the panel directly to the battery. You need to isolate the solar panel charging output from the AC-powered charger. A couple of high-current diodes arranged with their anodes connected to the charging sources in the positive supply line will allow either the charger or the solar panel to lift the voltage high enough to charge the battery, albeit with about 0.6 volts dropped across the diode. Both cathode ends would be connected to the battery. This arrangement allows a positive current to flow from either or both charging sources at the same time, although in practice, one will generally be higher than the other. Also, if the AC charger's voltage is significantly higher than the solar panel, the charger may always charge the battery. You would need to regulate its output to be slightly lower than the solar panel when it's near it's minimum useful operating voltage. (note that the 0.6 forward bias voltage on the diode might prevent the solar panel from completely charging the battery if it has any voltage regulation on its output)
Q:Has anyone used portable solar panels for home use?
I think you'd be disappointed. But you might be able to take an RV, park it close to your house in the sunshine, run an extension cord from your house connected to a small fan and run the fan for free. I don't think it's worth the expense of the RV, but that's me. If you have the money, flaunt it baby, flaunt it.
Q:Can I hook up a Solar Panel to a car battery? Does it matter the kind of car battery?
A 2 volt battery is a 2 volt battery. Some are larger than others. Sure you can charge a car battery with a solar panel, but 00 watts for a long time could be a problem. There's one way to find out.
Q:how much does it cost to operate a solar panel?
Photovoltaic panels have almost zero recurring operating cost. Once installed, they are good for the next 20-25 years, typically. The exceptions are if the panels are not tilted, then you need to pay someone a few times a year to go up there with a mop to clean them. Otherwise, rain and morning dew make the dirt slide off automatically. The cost for your system will depend on the power needs of your school. It also depends on your location. As a government entity, a school is not eligible for the current 30% federal incentive, but may be for state incentives, depending on where you live. Anyway, once you size your system, which will be large, figure on $7 / watt cost for a large system. This would be less if you live in a state with good incentives. So for example, if you needed a 00 kW system, the price would be $700,000. $00,000 of that money is to replace the inverters that break after 5 years, so you would be paying $600,000 up front.
Q:architecture and solar panels?????????????
They aren't considered attributes - electrical solar panels are expanses of gray and aluminum covered with glass and water heating panels are expanses of black covered with glass. To cover the cost of investment they must be mounted at the best angle for the location and climate throughout the year and therefore may dictate the form of the roof (if sloped as on residences) or may not be visible in an architectural sense (if positioned on a flat roof of a commercial building.) No matter where placed, provision has to be made for safely accessing them for repair and maintenance.
Q:Can A Home Owned Solar Panel Support The Entire House's Electrical Needs?
it depens where you live(north or south)how many solar panel you have,what grade solar panels,how many rechargeable batteries etc.
Q:Making a Charger out of small solar panels?
3-T is just one type of many devices designed to control voltage so you get the amount you desire with as little static as possible. Without you having an degree in engineering, I can't explain it to you any better. You will also need to produce true sine wave energy or you will burn out your PSP with the correct volts and amps. You need one to produce only 5 volts 2amps. Anything different will burn out yur PSP. Your problem is simple math. Watts = volts multiplied by amps. Amps = Watts divided by volts. So if your solar panels can produce /4 amp ( 250 mA) each, then you connect one to the other in a series until you get enough connected to make 2A. ( 8 panels { /4mA x 8 = 2A}) You now have a panel with 32Volts, 2Amps, 64 Watts. This is where the T-3 regulator comes in. If you buy one for 5 volts, it will allow only 5 volts 2 amps, to go to your PSP.
Q:question about solar panels....?
Not many people realise it, but Einstein did not win the Nobel Prize for either Theory of Relativity. He was awarded the prize for his work on the photoelectric effect. i.e. the ability of some materials to take photons of light and turn their energy into electricity. Now, since most of the Sun's UV rays are filtered out by the Earth's atmosphere, else we'd be able to get a sunburn in seconds walking around outside in daylight, I think there is some energy imparted to the solar cells by UV wavelengths of light, but most solar cell materials rely on the wavelengths of electromagnetic radiation we call visible. Plus, I always thought infrared wavelengths conveyed more heat energy than UV rays.
Q:how to store energy from solar panels?
I have no idea what you are doing or what you think you are accomplishing. A 235 watt panel isn't much energy. You can certainly store it with a plain old lead acid battery.

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