CNBM Poly Solar Panel 300W A Grade with Factory Price

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Shanghai
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TT OR LC
Min Order Qty:
24 watt
Supply Capability:
100000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 300 Number of Cells(pieces): 72

Product Description:

CNBM Poly Solar Panel 300W A Grade with Factory Price


Production description

 solar panels that can always be pointed at the Sun even as the rest of the body of the spacecraft moves around, much as a tank turret can be aimed independently of where the tank is going.

Each module is rated by its DC output power under standard test conditions, and typically ranges from 100 to 365 watts. The efficiency of a module determines the area of a module given the same rated output – an 8% efficient 230 watt module will have twice the area of a 16% efficient 230 watt module. 


Depending on construction, photovoltaic modules can produce electricity from a range of frequencies of light, but usually cannot cover the entire solar range (specifically, ultraviolet, infrared and low or diffused light). Hence, much of the incident sunlight energy is wasted by solar modules, and they can give far higher efficiencies if illuminated with monochromatic light. Therefore, another design concept is to split the light into different wavelength ranges and direct the beams onto different cells tuned to those ranges.[citation needed] This has been projected to be capable of raising efficiency by 50%. Scientists from Spectrolab, a subsidiary of Boeing, have reported development of multijunction solar cells with an efficiency of more than 40%, a new world record for solar photovoltaic cells.

Currently the best achieved sunlight conversion rate (solar module efficiency) is around 21.5% in new commercial products[3] typically lower than the efficiencies of their cells in isolation. The most efficient mass-produced solar modules[disputed – discuss] have power density values of up to 175 W/m2(16.22 W/ft2).[4] Research by Imperial College, London has shown that the efficiency of a solar panel can be improved by studding the light-receiving semiconductor surface with aluminum nanocylinders similar to the ridges on Lego blocks. The scattered light then travels along a longer path in the semiconductor which means that more photons can be absorbed and converted into current. Although these nanocylinders have been used previously (aluminum was preceded by gold and silver), the light scattering occurred in the near infrared region and visible light was absorbed strongly. Aluminum was found to have absorbed the ultraviolet part of the spectrum, while the visible and near infrared parts of the spectrum were found to be scattered by the aluminum surface. This, the research argued, could bring down the cost significantly and improve the efficiency as aluminum is more abundant and less costly than gold and silver. The research also noted that the increase in current makes thinner film solar panels technically feasible without "compromising power conversion efficiencies, thus reducing material consumption".[5]

CNBM Poly Solar Panel 300W A Grade with Factory Price


Application

Aerospace 

Residential

Commercial

Large solar power plant

Distributed plant


Product Feature

1.A grade high efficiency solar cells. 
2.TUV/UL/CE/CEC etc 
3.Fast shippment 
4.25 years warranty 

5.OEM


Package

24pcs into one carton, 312pcs into a 20 foot container, 728pcs into a 40 foot container.



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Q:how the power output of solar panels fitted to a house can charge?
Solar panels do NOT get charged, so the question is junk, or you misstated it. Solar panels are used to charge a battery bank, which stores energy for times when there is no sun. Then energy from the batteries is used, via an inverter, to power appliances in the house. OR do you mean how the power output of solar panels can CHANGE? In that case, they change when the sun moves, such as behind a cloud, or just changes angle in the sky, or goes out.
Q:solar panel installed house roof?
How does the cable wires stay on the solar panel? With wire retention clips (4 per module) that are used to wrap the wire on the underside of the module frame. The home run cables to the transition box (converts between types of wire with no electrical transformation occuring) or combiner box (joins multiple source circuits in parallel, with the positives fused for safety) are usually tied along the racking system components, and with conduit sections used as needed. Racking is another big part of the installation. Don't just make your own homemade wooden rack, as these will weather away to nothing very easily, and cause great failures. GET a professionally designed metal racking system. PV modules are EXPENSIVE. Don't let the racking system cause them to break. It also requires the inverter, if you intend it to connect to the main electric service. If using multiple inverters, you need an AC combining panelboard to join them prior to entering the main electric service. Otherwise, you need to think about how else you might be using them. If you are charging batteries, you need a charge controller.
Q:How many volts does a small solar panel on a calculator produce?
Wrong forum
Q:Are solar panels worth it?
Is an SUV worth it? I have passed many of them off in the ditch while my 2wd truck keeps going on icy roads. Unless you own a company and need the SUV it will never pay for itself. Is a huge house worth it? I can live in a 8X6 foot house perfectly well. Unless you rent rooms out in the large house it will never pay for itself. Solar panels are statements to others like a house or vehicle, except they will actually pay for themselves over many years. Don't expect to get rich off them, but look at it as doing your part to cut down on pollution, become more self sufficient or whatever. The exception is if you build a house far from the grid. A friend was quoted $40,000 per mile to install grid tied power to her house out in the woods. Solar panels paid for themselves the first year there.
Q:solar panels......................................................................?
hardware store
Q:solar panel for computer?
Most decent laptops can use 50W of power or more....so you'd actually need a large solar panel with good sunlight. I just looked up how big a 50W solar panel is....it's about 64x64 centimeters...which is very big and expensive! So, solar power may not be the best solution to power, or charge a laptop battery. Maybe there are some solar powered chargers that charge the battery very slowly, but probably not.
Q:Charging batteries with a solar panel?
It is cheaper to have a solar regulator to extend the battery lifespan. A lead acid battery can vent hydrogen if charged too much and run out of electrolytes. The battery would cost more than a $30 5 amp solar regulator.
Q:how do you make solar panel?
Make okorder.com
Q:What if anything has been done to channel light power other than solar panels?
As your question notes, there are other ways to derive power from solar energy other than just using solar panels. One such way that has grown rapidly in recent years, is solar thermal generation. Solar-thermal uses mirrors to collect sunlight and concentrate it at point to generate intense heat. This heat is used -- just as in traditional fossil fuel plants -- to boil a fluid, thereby creating steam pressure, which drives a turbine that generates electricity. Solar thermal has some advantages over traditional solar panels. It's collectors (i.e. mirrors) are cheaper to manufacture than solar panels and last longer.
Q:How to connect a solar panel to an outlet?
Wow. I couldn't tell you how much something like that would cost, but I would expect it to be pretty high. I don't think you are going to find a panel out there that is going to pump out enough juice to provide 0ac. It would involve a battery system and a DC to AC power inverter. You would have to let the system charge for a time and then you would be able to use if for a little while.

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