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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 1500 Number of Cells(pieces): 1

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.



- High effi ciency, multicrystalline silicon solar cells with high transmission and textured glass deliver a module effi ciency of up to 16.0%,

minimizing installation costs and maximizing the kWh output of your system per unit area.

- Tight positive power tolerance of 0W to +5W ensures you receive modules at or above nameplate power and contributes to minimizing

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:Buying inverter for a solar panel?
I'm guessing that each of those solar cells is just 0.5 volt at max power, so if you make a 2-inch square panel, you will get 2 volts - not enough for the inverter. A car inverter is notoriously inefficient, but it would work if you connect it to a 2-volt battery. You cannot generally connect such an inverter to solar panels alone. The battery supplies the peak current that the inverter needs, and the panel charges the battery. To charge a 2-volt battery, you will want 36 cells, generally, which give you an 8-volt panel. You can buy an inexpensive charge controller somewhere. If your laptop will run off 2 volts directly, you can skip the inverter and be much more efficient. Or if the laptop runs of (say) 9 volts, you can use about 40 cells to get 20 volts, get the proper power plug from Radio Shack, and plug the panel directly into the laptop.
Q:how does solar panels save energy?
Solar panels don't save energy, they just utilize a different source of energy. To the extent that it replaces energy from sources which are limited themselves (such as fossil fuels), solar energy does save those resources.* The main benefits of solar energy are environmental in the sense that it is nonpolluting,* but using solar energy doesn't reduce actual power consumption. *Excludes environmental costs of producing the solar panels themselves, but these are much smaller than the environmental benefits of solar vs. fossil fuel (which has infrastructure costs of its own).
Q:cheapest solar panels sold on line?
Solar panels installed are roughly $0/watt in commercial quantities. Bare panels? Do a google search and see what you can find. But for the record, there are panels and there are panels. Stuff from China put together in a shed somewhere will not perform in the same way as some of the new thin-film amorphous panels coming out of the US and Europe. So, in many ways you get exactly what you pay for.
Q:Why are solar panels effected by operating temperature?
Absolutely temperature matters. So what do higher temperatures do to solar photovoltaic panels? As temperatures rise, the efficiency of solar panels decreases. Heat causes electrical resistance to the flow of electrons. On days where the temperature is more than 75 degrees, the electrical resistance makes the voltage fall thereby producing less kilowatts per hour. Your roof is much hotter than temperatures on the ground. That’s why solar panels are not mounted flat to a roof. There’s usually a few inches of spaces between the panels and roof so air flow can easily pass through and cool the panels down. There are some photovoltaic panels that are designed specifically to operate in hotter temperatures. These panels have a higher temperature coefficient. This is especially important in high heat climates like Arizona or New Mexico, but probably wouldn’t make too much of a difference in New England (except maybe this year). If someone lives in one of these areas, they should speak to a solar installer to make sure they are using they right equipment for their region. Please note: Solar thermal panels used to heat water can withstand high temperatures without any degradation. In fact, hotter temperatures would actually be better for these types of modules.
Q:Anyone have or know someone who has solar panels installed in their home? Is it worth getting?
Solar electricity is electricity, it is just coming from a clean source rather than coal or oil burning generators. The solar panels make DC power, and the inverter converts it to AC and syncs it up with the electricity you buy from the electric company, it all goes into the same pool, there is no difference between them. gr8sk8rgold - Yes, you are right, installing a large solar system on your house can cost as much as a luxury car. What's the return on investment on that car? How has that car improved the environment? People never ask what the ROI is on anything they buy for their house, except for the solar system. Not sure why. However, the return varies greatly depending on where you live. In some European countries, feed-in-tariffs made the return almost immediate. Ontario, Canada just launched a program that can make a solar system earn you money. In the USA, the federal gov't will give you a 30% tax credit on the installed cost, and some states have rebates and incentives that can pay for a large percentage of the system. If you are building a new house and roll the cost into the mortgage, it'll barely change the monthly payments. You should absolutely first invest in conservation. It is much cheaper to save electricity than to make it. For every $ you spend on conservation, that's about $4 less to spend on solar.
Q:How much money does it cost to make ONE solar panel?
Have . Possibly this could immediately instruct each and every one!
Q:Why do solar panels stop working?
The plastic covering degrades slowly and becomes more opaque, The metal current carrying parts corrodes over time. The metal frames corrode but can be repaired. The photovoltaic cells also degrade over time from exposure to ozone and heat that builds up in the panel.
Q:DIY home solar panels?
Not a good idea. The reason why panels are that much more expensive than cells is that the panels themselves are not that cheap either. If you start with the cells, you'll need - mechanical protection (hail, ice, snow) - electrical protection (i.e. waterproofing - if water comes in contact with the cells and wires, you'll get electrolysis which will corrode your wires and contacts faster than you can say 'b*mmer') - that setup will need to withstand temperatures between -20 and +30 °C (only guessing, might be worse) - oh, and the side facing the sun must be transparent (as far as possible) Now as to connecting the stuff: no, it will be neither easy to connect it to the house power nor to the grid - which is why that step (at least) in all countries I know of must be done by a certified electrician. If you get it wrong and you're lucky, only _your_ inverter will explode. Regarding the power: these 4W per cell (or kW for your shed) is the peak value, i.e. with the sun shining orthogonally onto the cells on a clear day. Since this (for a fixed installation) will only be true (at most) for a few minutes on a few days each year, your overall yield will be significantly less, probably more like 4 kWh/day for each clear day for each kWpeak you install _IF_ the shed roof is oriented exactly south and inclined towards the sun's noon position at the spring/autumn equinox (i.e. inclination angle = your geographical latitude). How many clear days do you have in britain? Yes, I had a similar idea for myself - but for one thing, the registered companies I addressed apparently weren't really interested in that small fry, plus the cost of the system + setup would barely have been amortized after the expected lifetime, even taking into account the (german) governmental subsidies. If I had the money to spare, I'd rather invest in a communal solar park. Much better ROI, the large installations get much better prices (per kW) for the setup.
Q:What are the supplies needed in a solar panel field?
There I think you can find lots of info on the internet. I hope this helps you get going.
Q:How does a solar panel work?
The term solar panel is best applied to a flat solar thermal collector, such as a solar hot water or air panel used to heat water, air, or otherwise collect solar thermal energy. But 'solar panel' may also refer to a photovoltaic module which is an assembly of solar cells used to generate electricity. In all cases, the panels are typically flat, and are available in various heights and widths.

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