• CNBM Polycrystalline Silicon 250W Solar Module System 1
  • CNBM Polycrystalline Silicon 250W Solar Module System 2
  • CNBM Polycrystalline Silicon 250W Solar Module System 3
CNBM Polycrystalline Silicon 250W Solar Module

CNBM Polycrystalline Silicon 250W Solar Module

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Loading Port:
China main port
Payment Terms:
TT OR LC
Min Order Qty:
100000 watt
Supply Capability:
10000000 watt/month

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Item specifice

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

About CNBM
CNBM International Corp, established in 2004, is the business entity for trade and logistic of CNBM Group.With the advantages in Cement, Composite Materials, NewBuilding Materials and Engineering, CNBM mainly concentrate on coal, steel and construction equipments and give priority to solar and wind energy development.CNBMInternational is highly recognized by its business partners and clients all over the world and has established good business relationship with the customers in over 120 countries and regions all over the world.

The capacity of CNBMSOLAR is reach to 1GW, and make sure each year our shipment capacity is more than 700-800MWs, at the same time, we have set up the largest solar power station with our partner in Ukraine.

 

Solar cell module production process

Line called packaging line components, packaging is the production of solar cells a key step in the packaging process without a good, multi-well battery is also not a good component of production boards. Battery package not only the battery life is guaranteed, but also to enhance the combat strength of the battery. Product quality and high service life is to win can be the key to customer satisfaction, so the quality of components of the package board is very important.  

 

Process is as follows:  

1, the battery test

2, positive Welding - Inspection –

3, on the back of cascading - Inspection –

4, laying (glass cleaning, material cutting, glass pre-processing, laying) –

5, laminating –

6, to flash ( to the side, cleaning) –

7, fitted border (glue, loading angle keys, punching, install box, scrub I glue) –

8, the welding junction box –

9, high-pressure test –

10, component testing -- -

11 appearance inspection, packaging and storage;  

 

CNBM Polycrystalline Silicon 250W Solar Module 

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A: All products offered by OKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: What is a solar PV module?

A: A solar PV module consists of many solar cells that are connected together (typically in series) and packaged in a frame (typically made of aluminum).

Q3: What are the advantages and disadvantages of monocrystalline solar PV modules?

A: Monocrystalline solar PV modules are the most efficient type of solar PV modules, with the exception of CdTe thin film solar PV modules. As a result, monocrystalline solar PV modules are more expensive when compared to almost all other types of solar PV modules.

Q4: What is the typical service life of a solar PV module?

A: The typical life of a PV module is 25 years. However, superior quality PV modules boast service lives up to 35-40 years (electrical generating capacity is often reduced, however by that point).

 

Data sheet

Maximum Power250W
Efficiency0.154
BacksheetWhite
Frame ColarSilver
Manufacture SiteChina
FrameAnodized Aluminum Alloy
Weight19 kg

 

 

Q:Can solar panels be installed on universities or educational campuses?
Yes, solar panels can be installed on universities or educational campuses. In fact, many educational institutions around the world have already embraced solar energy as a sustainable and renewable source of power. Installing solar panels on universities and educational campuses not only helps reduce carbon emissions and dependence on fossil fuels but also provides valuable hands-on learning opportunities for students studying renewable energy and sustainability. Additionally, solar panels can help universities save on energy costs in the long run, allowing them to allocate more resources to other educational initiatives.
Q:I want to buy a solar panel kit to run my central AC unit. it is a 3 ton unit. Can I do this? The electric rates in the Chicago area are skyrocketing and I can't keep paying 350 dollar electric bills during the spring and summer months
I know that in Texas we wouldn't even try to run an air-conditioner on a generator without at least a 6,000 watt generator and we would prefer a 0,000 watt generator. The calculator on the Kohler website says it'll be 7,500 watts. At $5 per watt to install a solar photovoltaic system and assuming you also need to run it through the night and taking into account that an inverter can be as bad as 60% efficient, you're talking about $87,500 just to run your AC for 25 years. The first step in going solar is to significantly reduce your energy use. You're not going to maintain your current energy use on solar, at least not cost effectively. If you did want to run an AC on solar power, you may want to look at absorption air conditioning and use evacuated tube solar thermal collectors instead but don't expect it to be cheap and it usually only augments the use of natural gas in the absorption chiller.
Q:Can solar panels be used to power swimming pools?
Yes, solar panels can be used to power swimming pools. Solar panels generate electricity by converting sunlight into energy, which can be used to power various devices and appliances, including swimming pool pumps and heaters. By installing solar panels, pool owners can significantly reduce or eliminate their reliance on traditional electricity sources, making it a sustainable and cost-effective way to power swimming pools.
Q:How do solar panels affect the overall air quality of a building?
Solar panels have a positive impact on the overall air quality of a building. By generating electricity from sunlight, they reduce the reliance on fossil fuels, which are major contributors to air pollution. This means that the emissions of harmful pollutants, such as carbon dioxide and nitrogen oxides, are significantly reduced. Therefore, solar panels help to improve the air quality by promoting cleaner and healthier environments.
Q:Okay, so I have a science fair coming up soon and I need help with my project. SO - What should I use to demonstrate with the propeller? A toy boat? Plane? And I only have mini solar panels ; so how do I put the solar panels on the toy boat/plane to make the propeller move off of the sun's energy? Thanks. Steps please!
Solar panels produce electricity. To move the propeller you need mechanical motion. An Electric motor converts from electrical to mechanical power. Most Solar Panels produce DC electricity as do batteries so you need a DC motor that is sized to match the Output of your solar panels. For small temporary projects like this I find that hot melt glue is great to assemble parts. Using a voltage meter you can expose your solar panels to a strong light (or one equal to what you expect during your demonstration) and measure the voltage across the terminals. This may help to size the motor. It depends upon the size of your propeller and how it is made. Your three choices are to use it to power an airplane, to power a boat underwater or to power a boat like an air boat. You might also use the air boat concept to make a car. (air car) The air boat might be the simplest to make but you will need a body of water to demonstrate the concept. The air car doesn't have such a requirement.
Q:Can solar panels be installed on wineries or vineyards?
Yes, solar panels can be installed on wineries or vineyards. In fact, they are increasingly being utilized in the wine industry as a sustainable energy solution. Solar panels can be mounted on rooftops, canopies, or even on the ground in open spaces, providing clean and renewable energy to power the winery operations.
Q:i want to know how to hook up solar panels to my existing power. all i can find on the internet is to use batteries and a inverter. but i want to use all of my existing lights and outlets off of the solar energy. i have heard that you can actually turn the meter backwards and use supplied power when needed. thats what i want to do and is it possible to do myself and if so, how?
Im an ex solar installer. I dont know all the details but I know of 2 companies in hawaii that are doing what youre talking about - and yes, it feeds power back into the grid and makes your meter turn backwards. uh... darn... locate a company that does that stuff and they will tell you best how and what and why. The electric comapny will know less as they are (believe it or not) behind the times. 2st century technologies is the co. in hawaii. the owner is way cool. its a full-on expensive system though, not some cheesy diy thing. its gnarley. you need the special panels and all that. Photovoteic panels are really expensive. The system costs like 0k + but pays for itself after perhaps 6 years and then you reap the monthly check from the electric company for life (instead of you paying them) Inh hawaii, the sun is strong = $$$ for solar. good luck in your....quest? whatever, man. Hope you find what youre looking for.,
Q:Can solar panels work in cloudy weather?
Yes, solar panels can still work in cloudy weather, although their energy production may be reduced. Cloud cover reduces the amount of sunlight reaching the panels, resulting in a lower output. However, modern solar panels are designed to generate electricity even in low-light conditions, making them still effective in producing energy during cloudy days.
Q:how much electricity will produce in Kwh by a 000 W solar panel in a sunny tropical area per day (good sunlight at least 0 hour a day)
Solar cell has efficiency from 0% to 5% max. That is the technology we have as for now. It stated 000W, that means it could provide 000W under fully super condition . KWH is not a unit to rate solar panel, it was used for wattmeter that company installed in every house to monitor electricity usage.
Q:I contend:As far as the solar panels causing global warming I'll try to explain. If you put a black panel on the ground or on your house and don't connect it to anything, it will absorb solar energy (heat) during daylight and release it at night (radiation). The net heat gain is zero. If you hook up a solar panel in the same place but hook it up to batteries, charge the batteries during sunlight hours and using that energy to electrically heat the home at night. The panels will absorb solar energy during the day but will convert that to electrical energy in the batteries instead of radiating it back into space at night. The result is a net gain in earth's temperature.Right or wrong?
As far as it goes, you're right: putting up a big black object increases the total amount of energy absorbed from the sun. But that's only part of the story. If you didn't put up the solar panel, the same radiation would hit the earth. The earth already absorbs 2/3 or so of the energy that comes in (albedo .30), so adding even a perfectly black object increases it only by 50%. But it's not even that much, because most of the extra energy absorbed is converted into electricity. Solar panels are about 0-5% efficient, so half of the extra energy is turned into electricity rather than heat. Eventually it's put to use and turned into heat, but that heat was going to come from somewhere else anyway. (Even if it's just powering your DVD player, it turns into heat just the same as if you were using it to heat your house.) If you dig up a gallon of petroleum or fission a microgram of uranium, that's heat introduced into the earth's atmosphere. And these processes are inefficient: between generation and transmission you lose about 75% of the energy, meaning you've introduced 4 times as much energy into the atmosphere as you've actually used. So with a solar panel, you add extra heat to the earth by about 25% of incoming solar radiation, but you've offset external costs by about 45% of incoming solar radiation. The net effect is to cool the earth. And that assumes that the solar panel itself is perfectly black, which isn't the case. Real commercial solar panels have an albedo of about .35, which makes them more reflective than dirt and considerably more reflective than asphalt shingles, which have .03 albedo. In other words, even if you didn't actually use the solar panels for electricity, they'd be cooling the earth just by reflecting energy back into space more than your regular shingles.

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