250W 60 Cell Solar Photovoltaic Module Solar Panels

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China main port
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TT OR LC
Min Order Qty:
1000 watt
Supply Capability:
500000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 250 Number of Cells(pieces): 60

Product Description:

Instruction

1) Product name: solar panel / module

2) Solar cell: Mono-crystalline / Poly-crystalline / Amorphous

3) Tempered glass laminated with aluminum frame

4) Life time: 20 - 25 years

5) Temperature co-efficiency:  A=+1,46mA B=-79mV, Rp/p=-0.43

6) Power specification at 1kW/m 2, AM 1, 5

7) Output cable: multi contact connectors

8) Construction:

     a) Front: High-transmission 32mm tempered glass

     b) Back: TPT

     c) Encapsulant: EVA

9) Frame: aluminum

10) Certification: CE, TUV

   

Feature

1. Nominal 18V DC for standard output.

2. Cable connectors for easy installation.

3. Outstanding low-light performance.

4. Splendid aesthetic appearance and easy installation.

5. High efficiency & high stability.

6.Advanced EVA encapsulation system with TPT back sheet to improve product modules

7. Design to meet unique demand of customer.

8.25 year module output warranty.

9. Rugged design to withstands high wind pressure and snow load, easy installation.

10. Designed to comply with rigorous operating conditions, including test. 


Images

250W 60 Cell Solar Photovoltaic Module Solar Panels

250W 60 Cell Solar Photovoltaic Module Solar Panels

Specification

 

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

 

FAQ

We have organized several common questions for our clients,may help you sincerely:

1). What’s price per watt?

A: It’s depends on the quantity, delivery date and payment terms of the order. We can talk further about the detail price issue. Our products is high quality with lower price level.

2). Can you tell me the parameter of your solar panels?

We have different series of cells with different power output, both from c-si to a-si. Please take our specification sheet for your reference.

3). 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.

4). 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 perfect 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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Q:Mono-crystalline or poly-crystalline solar panel?
All solar photovoltaics drop in efficiencies with higher temperatures but it isn't the 45+ C you have to worry about but rather the heat from the sunlight striking the panels. There are hybrid systems which passes water in pipes attached to the back of the solar panels to cool the panels and preheat the water for solar thermal collectors. The difference between mono-crystalline and poly-crystalline are that mono-crystalline are more efficient and more costly to make.
Q:Solar Panels: How long will it be before solar panels are cheap & effecient enough so that everyone?
I know 4 families that not only power their entire homes with their panels (including their AC during the summer), they contribute electricity to the grid and have a negative electric bill. They also got a big rebate from our local electric company, SoCal Edison, for installing the panels. Maybe the worthiness of solar panels depends on how many days of sun the roof of your home gets during the year.
Q:H2 as an Alternative Fuel Source using Solar Panels?
Currently solar panels are rated at about 5 percent efficiency. That means that about 85 percent of the solar energy that is falling on it, is wasted. Electrolysis is also about 67 percent efficient. So the TOTAL amount of solar energy you would have converted into hydrogen is 67 percent of 5 percent. Using my calculator that comes out to: about 0 percent total efficiency. About 90 percent of your solar energy gets wasted in the process. A better alternative to solar panels would be solar powered sterling generators. Sterling engines are EXTERNAL COMBUSTION engines, like the old fashioned steam engine, and can be run off any heat source - including the sun. Heat from the sun is focused using parabolic mirrors, and the efficiency of a sterling engine / generator combination is rated at about 30 percent. Your TOTAL efficiency - both solar sterling and electrolysis combined - would be around 20 percent. If you are dead set on using hydrogen? Even though there are better alternatives? Such as alcohol? Then I would suggest storing it in titanium dioxide pellets. This way you can store the hydrogen, without it being in danger of exploding. You can ALSO ram a hydrogen container like this into a solid brick wall. Once again? Without fear of an explosion. Numerous studies have been conducted on this. As for controlling the exact measurements? Nothing in the air-fuel ratio of a car - - or the timing - which you are also going to have to change - needs to be exact. A good enough approximation will do. As for how you get your measurements? You need to compare the density of gasoline vapor with hydrogen gas. A comparison of the molecular weight of gasoline - - as compared to the molecular weight of hydrogen - should get you started in the right direction for this.
Q:are solar panels sufficient for electric heating?
A thermal solar panel to feed your water heater is the most efficient. But you need a classic heater system too when there is no or little sun. Solar panels to heat a home is not at all recommended. First of all, you get less day light and less sun in winter, so you won't get much electricity. They work best in summer, but electric panels have poor yields and are a very long term investment. You will need to wait years before saving money. Natural gas, a well isolated home, and a good old sweater is the best way to cut bills.
Q:Tips for convincing my school to put solar panels on the schools roof?
Unfortunately installing Photoelectric Solar panels on your school would probably cost more than the entire school budget. In order to make this sort of proposal you would need to have some hard numbers to show exact dollar amounts of costs and benefits. You would need multiple quotes from companies that install solar panels and information from the electrical company that would have to tie the system into their grid. This is a HUGE undertaking. If you really want to reduce carbon emissions, suggest ways to reduce the energy use within the school instead of converting to solar. Better windows, doors, and roof insulation. If you have a leaky roof, fixing that would get rid of water damage and better insulate the school thus saving energy. Suggest plans to reduce electrical usage like having computers go into Hibernate mode after 0 minutes, turning off lights in rooms that aren't getting used, etc... Many people are fooled into thinking that solar power is this awesome free energy source. IT is NOT. Solar panels are great for powering small items or for getting power when you have no other way of getting connected. However it takes MORE electricity to create a solar panel than the solar panel will ever produce in it's ENTIRE lifetime. Do some research into the production of silicon crystal and semiconductors and find out how solar panels are made. Until the technology improves greatly, solar is not a green power source other than generating money.
Q:solar panel efficiency in space?
I'm not sure on the exact numbers of solar panel efficiency, however i do know that at the radius of the Earth we should be receiving about 000W of power per square meter. This value is lessened by the atmosphere to a value closer to 600W per square meter on the Earth's surface. (on a really hot day) That's a 40% drop in power due to the atmosphere. I'm assuming that the solar panels being in space don't affect it's efficiency (as in mechanically). So its power generation should increase by about 40% when in space compared with a ground based panel of the same design. Hope this helps, Sorry it's kinda sketchy info...
Q:How much do solar energy panels cost?
Why pay thousands of dollars for solar energy ($27,000 average cost) when you can build your own solar panel system for just a fraction of the retail cost. You can build a single solar panel or you can build an entire array of panels to power your whole house. Some people are saving 50% on their power bill, some people are reducing their bill to nothing. But what’s most impressive is that just by following these instructions some are even making the power company pay them!
Q:Solar panel question..?
Little solar panels on lights are very low power. The battery in one such may be 0.5 Amp-hours and .2 V ; it may be different but it should be marked on the panel/battery/manual. An outlet in your house is designed to run on 20 V (typically in N. Am.) and they run on alternating current (AC) whereas the panel generates direct current (DC). (If you don't know the difference, do not worry to much but just understand that they are not directly compatible.) You therefore need an inverter to change DC to AC (and lose some although inverters are now very efficient). But the amount of power generated by those panels is still very small. That is why solar lights are low power (just a few watts in most cases). To make things even more irritating, phone chargers do not work off 20 V AC as you are charging the battery and need a low voltage DC -- which is what the solar panel is giving you. It is almost certain that the voltage from the panel will be less than the voltage required for the phone. The charger is mostly cable but there is a black box incorporated and it should say what the voltage and current output are (the input will be 20V). So you should be able to overcome this not by hooking up the panel to a 20V outlet and then plugging the charger in but by hooking up the panel to the phone directly if you can get enough voltage out of the solar panel (or hook up several) and if you fashion a connection device. They already make them -- solar battery chargers and I am sure you can enter that into a search engine and find loads. Typically the panel alone is much more than a solar light -- which shows the relative power requirements.
Q:Is this a good kit for building a solar panel?
Guide okorder.com/
Q:Solar panel placement idea?
Solar panel generates fairly low, unreliable source of energy. They are most likely very expensive. Despite all of that, your window may act as a beam filter by refracting the beam or reflects them off trough total internal reflection causing a low yield of sunlight harvest. Sunlight is also necessary to hit the panel 90 degrees to harvest maximum output.

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