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Friday, 30 December 2016

Polycrystaline Or Monocrystaline Solar Panel





There are basically three types of Solar Panel , Mono crystalline, Poly crystalline, and Amorphous /Thin Panel..
But in this article I will  talk about only  differences about Mono and Poly crystalline...
  
If you want to ask , why you exclude Amorphous  .....Answer is the most used and logical choice for Solar household System as well as other big Solar Projects  are Mono and Poly crystalline ...and why they are the best choice...... read below...

To choose which is the best solar panel we nee to compare between them....


Mono crystalline Panels:


Solar cells made of mono crystalline silicon (mono-Si), also called single-crystalline silicon (single-crystal-Si)
Mono crystalline silicon (mono-Si) solar cells are more efficient and more expensive than most other types of cells. The corners of the cells look clipped, like an octagon, because the wafer material is cut from cylindrical ingots, that are typically grown by the Czochralski process. Solar panels using mono-Si cells display a distinctive pattern of small white diamonds.




You can recognize Mono Crystalline Solar plane by just seeing them, it is like love at first sight.

you see those red rectangle on the plane in the left picture which showing you the differences that Mono crystalline does have compare to other solar panel is the diamond shaped look... there will be always those diamond looking dots between cells in the Mono Crystalline Solar Panel....

Mono Crystalline Panels are high in efficiency comparing to other Solar Panels....The efficiency rates of mono crystalline solar panels are typically 15-20%..Since these solar panels yield the highest power outputs, they also require the least amount of space compared to any other types. Mono crystalline solar panels produce up to four times the amount of electricity as thin-film solar panels...Mono crystalline solar panels live the longest. Most solar panel manufacturers put a 25-year warranty on their mono crystalline solar panels.Tend to perform better than similarly rated poly crystalline solar panels at low-light conditions...

*Mono crystalline solar panels are the most expensive. From a financial standpoint, a solar panel that is made of poly crystalline silicon (and in some cases thin-film) can be a better choice for some homeowners...
* If the solar panel is partially covered with shade, dirt or snow, the entire circuit can break down...




 Poly crystalline Panels:


The first solar panels based on poly crystalline silicon, which also is known as poly silicon (p-Si) and multi-crystalline silicon.. Unlike mono crystalline-based solar panels, poly crystalline solar panels do not require the Czochralski process. Raw silicon is melted and poured into a square mold, which is cooled and cut into perfectly square wafers.


 The Picture in the right is showing you the array of Poly Crystalline solar panels , if you see the green rectangle you will see there is no diamond dots in between poly crystalline cells....Very easy to recognize....

The Process of used to make poly crystalline silicon is simpler and cost less. The amount of waste silicon is less compared to mono crystalline... 😯😯😯

*Efficiency of poly crystalline-based solar panels is typically 13-16%. Because of lower silicon purity, poly crystalline solar panels are not quite as efficient as mono crystalline solar panels. 

*Lower space-efficiency. You generally need to cover a larger surface to output the same electrical power as you would with a solar panel made of mono crystalline silicon. However, this does not mean every mono crystalline solar panel performs better than those based on poly crystalline silicon.






Note : Both Mono Crystalline and Poly crystalline has proved that they are quite home efficient solar panels, but people who thinks about saving money with best quality possible ,they should go deeper in the theory...
so if you analyze the performance of both solar panels , you will find they don't have much differences when you use them in small projects like house hold 100W~500W, but when you think about higher projects like 1000W or above system or mini grid system, it becomes more critical because then question is more difficult to answer whether go for cost or go for quality & space more....so advice is  if you want to set up solar home system which is like 100W~500W, I recommend you to go for poly crystalline solar panels because you will save more money than the total power differences compare to mono crystalline performance will not affect much....but if this a question about a system which is greater than 1000W, then I recommend that you see your budget to do the best because then the cost & space & performance will give you a tight thought...
If you have good budget then go for mono crystalline and if you have lower budget then go for poly crystalline....




Hope you like this post (Jajakallahu khairan ) 

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