Poly Solar Panel 280W A Grade with Cheapest Price

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100 watt
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50000 watt/month

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Item specifice:

Material: Polycrystalline Silicon Max. Power(W): 280 Number of Cells(pieces): 72

Product Description:

Mono Solar Panel 280W A Grade with Cheapest Price


Product description


60 cell multi-crystalline solar module. 40mm natural anodised frame. IP65 rated Jbox, 1m solar cable and a pair of MC4 connectors.TÜV SÜD,SABS ISO 9001:2008 certified.

There are a few solar panels available that are exceeding 19% efficiency. A single solar module can produce only a limited amount of power; most installations contain multiple modules. A photovoltaic system typically includes a panel or an array of solar modules, a solar inverter, and sometimes a battery and/or solar tracker and interconnection wiring.

The problem resides in the enormous activation energy that must be overcome for a photon to excite an electron for harvesting purposes. Advancements in photovoltaic technologies have brought about the process of “doping” the silicon substrate to lower the activation energy thereby making the panel more efficient in converting photons to retrievable electrons.[13] Chemicals such as Boron (p-type) are applied into the semiconductor crystal in order to create donor and acceptor energy levels substantially closer to the valence and conductor bands.[14] In doing so, the addition of Boron impurity allows the activation energy to decrease 20 fold from 1.12 eV to 0.05 eV. Since the potential difference (EB) is so low, the Boron is able to thermally ionize at room temperatures. This allows for free energy carriers in the conduction and valence bands thereby allowing greater conversion of photons to electrons.

Poly Solar Panel 280W A Grade with Cheapest Price

Application

Industrial

Commercial

Residential


Product feather

solar panel refers to a panel designed to absorb the sun's rays as a source of energy for generating electricity or heating.

A photovoltaic (in short PV) module is a packaged, connected assembly of typically 6×10 solar cells. Solar Photovoltaic panels constitute the solar array of a photovoltaic system that generates and supplies solar electricityin commercial and residential applications. 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. There are a few solar panels available that are exceeding 19% efficiency. A single solar module can produce only a limited amount of power; most installations contain multiple modules. A photovoltaic system typically includes a panel or an array of solar modules, a solar inverter, and sometimes a battery and/or solar tracker and interconnection wiring.


Packaging

24-26pcs into carton 312pcs for 20 foot container 712pcs for 40 foot container.


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Q:how do you make solar panel?
well... I'm not sure how you can make a solar panel that you can store electricity off of. But a simple solar panel is... Take a pane of class a bunch of pop cans and a fan... color the bottoms of the pop cans black and attach them to a board of some sort (black side up) put the pane of glass over the cans (with about 5 inches of space between) and put the fan blowing away from the cans you can set this in a window that gets lots of sun and it will use the solar energy to heat your house (its pretty efficient and warm)
Q:How much power does a solar panel generate?
That site tells you somewhat about the cost of solar panels and their MAXIMUM output. Now some who have these panels claim output, in daily terms, 8 times as great as maximum output, which says they are counting on 8 hours of effective sunlight. In California Desert that is sound. You will discover that Ontario Power grid is planning for 3 hours to 4 hours of maximum output . Based on that 3 to 4 hours of maximum output, it would take close to 20 years to recover your cost at the price Ontario pays for solar power. The deal locks you in so that you can not get more money as electricity prices go up, and do not lose if electricity prices go down over that 20 years.
Q:Solar Panel and Wind Power?
If you are in the desert and near the equator you will need fewer panels than if you live in a rain forest or Alaska. If you live in a wind tunnel with consistent strong wind, you will have better results than if you live where there often is a lull in the wind and changes of direction of the wind. If you already pump your water by hand, generate your own electricity by cycling using your legs, and go to bed whenever it gets dark out, you might make it. But if you tend to cook and launder on the grid, run a refrigerator, perhaps heat your house or air condition it, own various gadgets you plug into outlets to use, like lamps, puters, toaster, shaver, blender, dishwasher etc, you may not be able to get off the grid.
Q:How many solar panels do I need?
You're missing a few assumptions: - where on the globe? - how well is your house insulated, how do you plan to heat/cool your house? - why do you insist on power wasting appliances like plasma screens? Usually, unless it's absolutely impossible, a grid-tie-in system is much better than an insular system. You could use the grid to 'store' electricity for those times when the sun isn't shining and as fall-back if your yield isn't quite as good as you calculated. With the battery system, you'll have to specify your reliability requirements. If you want a 00% guarantee that you'll always have electricity, even if the sun is not shining for a week longer than you've planned according to the past weather history of your area, you'll either have to ridiculously oversize your battery (and panel) system, or plan for some sort of backup system anyway. Finally, if you're really planing such a system, you might want to take a look at the fridges and freezers used on sailboats: these use a eutectic cold accumulator, i.e. you 'charge' the fridge when the engine is running (or the sun is shining) and it'll then keep the temperature for another ~2...35 (professional systems) hours.
Q:How much was the price of solar panels 5 years ago compared to now?
I okorder.com to register for free and lock in long term costs. The increasing demand and competition is helping reduce costs.
Q:Im a bit confused about what a solar panel is?
A two KW system would be made up of a number of solar panels. Panels used in residential and commercial systems usually run in the range 50 watts to about 200 watts. There is a HUGE amount of information available on the internet about solar panels and all the components of solar electric systems. All you have to do is search on the internet under solar panel. It's very safe and easy. So just do it.
Q:Life expectancy of LEDs and Solar panels...?
LED's 6 years or longer
Q:do solar panels work in aeroplanes?
As long as the solar panel has access to light it will operate. If you can keep it in the sunlight it will work a lot better than off the internal lights on the plane. Depending on the plane/lighting/your position, there might not be enough ambient light available for the solar panels to run your laptop.
Q:Solar Panel Efficiency?
When it exposed to light, it starts generate electricity. Now the 200W written on panel is not its all time power. Its Watt Peak (200Wp) , it means when sun is at peak. it is around PM - 3.30PM daily in India(plane area). And panel never give 200w for more than 5 years, the efficiency reduced up to 0% at completion of 5 years of panel and 20% up to 25 years of life of panel.
Q:What type of gases and toxics do solar panels use or produce?
it is fairly conceivable, despite if the difficulty with this physique of recommendations is the storage of the produced HHO. An 'on call for' technique is plenty safer and less difficult. Hybrid structures are already accessible that boost gasoline financial equipment some 20% to 60%. DIY 'plans' and such are additionally accessible for people who prefer to tinker.

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