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Which Type of Solar Panel is Best for You?
There are number of different types of solar panel, from an ever increasing range of manufacturers. Each claims that they are best for one reason or another, with different sales people all giving different information. We are not tied to any particular manufacturer and do not hold stocks of solar panels, so that we are flexible enough to be able to recommend whichever solar panel we think is best for your project and can just order and fit the type of panel you prefer.This means that we are able to give completely independent advice about our views on different panels and, hopefully, help you distinguish the sales blarney from the real facts.

Polycrystalline vs Monocrystalline vs Hybrid

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Monocrystalline Panels
The solar cells in monocrystalline panels are slices cut from pure drawn crystalline silicon bars. The entire cell is aligned in one direction, which means that when the sun is shining brightly on them at the correct angle, they are extremely efficient. So, these panels work best in bright sunshine with the sun shining directly on them. They have a uniform blacker colour because they are absorbing most of the light.
Pure cells are octagonal, so there is unused space in the corners when lots of cells are made into a solar module. Mono mono panels are slightly smaller than poly panels for the same power, but this is only really noticeable on industrial scale installations where you may be able to fit a higher overall power with monocrystalline.

Polycrsytalline Panels (also known as multicrystalline)
Polycrystalline panels are made up from the silicon offcuts, moulded to form blocks and create a cell made up of several bits of pure crystal. Because the individual crystals are not necessarily all perfectly aligned together and there are losses at the joints between them, they are not quite as efficient. However, this mis-alignment can help in some circumstances, because the cells work better from light at all angles, in low light, etc. For this reason, I would argue that polycrystalline is slightly better suited to the UK’s duller conditions, but the difference is marginal.
The appearance is also different – you can see the random crystal arrangement and the panels look a little bluer as they reflect some of the light.
Since they are cut into rectangular blocks, there is very little wasted space on the panel and you do not see the little diamonds that are typical of mono or hybrid panels. Some people prefer this more uniform appearance, others like the diamonds. The choice is yours because the overall size and cost is very similar to monocrystalline.

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              Monocrystalline Solar Panel                                                              Polycrystalline silicon solar panels

 
 

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Type SN-S150W Solar Panel
Maximum Power 150W
Maximum Power voltage 36V
Maximum Power current 4.278A
Open circuit voltage 43V
Short circuit current 4.27A
Cell efficiency 13.33%
Module efficiency 11.75%
size of modul 1350×808mm×35
Frame Material Alloy frame,46mm TH
number of cells 72pcs
size of cells 125mm×125mm
Weight per piece (Kg) 18kg
type of junction box PV
cable type and length connector typ PV cable, 0.9m, Plug and socket
maximum system voltage 1000V
Temperature coefficient of Isc +0.05%/℃
Temperature coefficient of Voc -0.34%/℃
Temperature coefficient of power -0.5%/℃
Temperature coefficient of Im +0.05%/℃
Temperature coefficient of Vm -0.34%/℃
Nominal operating cell temperature 47℃(+2℃)
Wind Bearing 60m/s(200kg/sq.m)
Impact Resistance Hail Impact Test 227g steel ball fall down from 1m height
Quality guarantee CE、TUV,3 years products warranty and 25 years 80%of power
FF 68%---72%
Tolerance Wattage(e.g.+/-3%) +/-5%
Surface maximum load capacity 60m/s
Output tolerance +/-5%
Standard test conditions AM1.5 100mw/cm²

 

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