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Item specifice:

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

Product Description:

Product Description:

1. Structure of Polycrystalline Silicon Solar Panel Type CR290P-CR250P

Solar modules, which are widely used in ground mounted utility-scale PV plants, large-scale and small civil and commercial power generating system such as BIPV combined to the grid, roof-mounted PV power system, rural electrification, communications, emergency auxiliary power.

Solar PV module is comprised of some solar cells which are connected in serial with high efficiency and enhanced reliability.


Rated maximum power (Pmax)250W
Open circuit voltage (vOC)45.43
Short circuit current (Isc)5.56
Maximum power voltage (Vmp)37.94
Maximum power current (Imp)5.24
Cell efficiency (%)18.00%
Max system voltage (VDC)1000V DC
Temperature coefficient of Vm-0.241%/K
Temperature coefficient of Im0.033%/K
Temperature coefficient of power-0.37%/K
Maximum Series Fuse Rating10A
Solar cell and configuratiou72pcs(6*12)in series,125*125mm monocrystalline

module mismatch losses leading to improved system yield.



- Tests by independent laboratories prove that Solar modules:

 Fully conform to certifi cation and regulatory standards.

 Withstand wind loads of up to 2.4kPa and snow loads of up to 5.4kPa, confi rming mechanical stability.

 Successfully endure ammonia and salt-mist exposure at the highest severity level, ensuring their performance in adverse conditions.


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Q:Do I need to run a ground form my solar panel?
Q:Why dont we have a gigantic solar panel system in the warm states,stretching miles across to supply the usa?
As a matter of fact these types of facilities are being built today. People are already hard at work on it. Yes solar is more expensive that conventional electricity sources, but only at first. A solar power plant has no fuel costs and so although it costs a lot more to build at first over its life time it can actually cost a lot less. That doesn't even count the costs of byproducts from conventional power plants. Most people are not aware that particulate pollution kills between 00,000 and 200,000 people in the United States every year. The majority source of particulate pollution is electrical power production, but our electrical bill does not include the costs of those deaths. If the electric utilities had to pay their fair share of those medical costs electricity produced by fossil fuels would look a lot less attractive. Some people think solar panels take more energy to build than they every collect from the sun but that is not true. A solar panel generates the energy it takes to make it in between and 2 years and after that the power it generates is basically free. Solar panels are expected to last between 30 and 50 years, so that is a lot of free power. By the way, I installed solar panels on my house. They cost me about 6000 dollars (after rebates and tax deductions) and saves me about 000 dollars every year from my electrical bill. I have a 5 bedroom house and a family of three and our electrical bill averages just $35/month. That is in California with some of the highest electrical rates in the country. So I can say that solar works. There are dozens of companies working very hard to make solar power more affordable and they are being successful. The solar industry is about 7X larger in 2006 than it was in 2000. It is one of the fastest growing industries and has sustained growth of 40% per year for the last five years. Solar power will become the largest industry on Earth, but it will take some time. It is a very encouraging development.
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.
Q:how long does it take for a solar panel to make one watt?
Q:Solar panels in the Bay Area?
Solar works even if the sun can not be seen. Germany is using them and with success, even though they do not nave sun like Sacramento. Another option is to use solar concentrating collectors at malls, open fields... But we have to set them up to use the heat when the low BTU's will not turn the turbine. Hilltop is an example of a place to put this type of system. This is what I am working on.
Q:Solar panel cable setup?
How long is the run? 2 gauge is a good choice for runs up to 25 feet at 20 watts, if you are much further in your run, move to 0 gauge to reduce resistance of the wire itself in the circuit. Otherwise refer to the prevailing electrical code of your local unit government. This is a must if you plan to maintain insurance. At lower voltage, a little resistance means a lot. 4 gauge might be okay for 20 VAC, but the voltage drop on a low voltage system from resistance of the wire itself is measurable at 20 feet. It is the difference between a light fixture working or not. If you are planning on adding additional panels in the future, you can get terminal buss with screw hold downs at various vendors like Mouser or Digi key. Each panel can be on it's own screw, while the buss is common on the other side of the connection. one for the positive and one for the negative.
Q:how much is one solar panel?
no one has answered because you asked a question that cannot be answered. It is exactly the same question as how much is a car?. Do you want a passive solar heating panel, a solar electric panel, .5 Volts, ,000,000 BTUs, do you want just the panel or the panel installed and functioning, or what? the answer is between $5 and $5,000,000.
Q:I need help with solar panels?
Change the whole piece of solar panel, not just the glass. Looking for solar panel agent in your local city and get one.
Q:how would you build a solar panel?
i'd go to the solar panel store and buy one. It would be /0 the cost of trying to build one in my HOME shop.
Q:New Prius; Solar panles a good design?
The solar panels run the fan to remove hot air from the car. They do about the same amount of cooling that cracking the windows and using a heatshield over the windshield--that is they keep the interior of the car about the same as the exterior without draining the 2V battery. One problem I have with the solar panels is that they come with a moonroof. The other problem I have with them is that to get them you have to give up the additional safety features because Toyota won't put both the high tech safety features and the solar panels on the same car. So is it a good design? Well, nothing with a sun/moonroof is a good design IMHO, but that's the power of advertising for you. In that it runs a fan without draining the 2V battery, yes that part's good. Having to give up the high tech safety features to get it makes it a non-starter for me (and I live where it gets plenty hot so I could really use the fan).

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