Each panel and its manufacturer should be considered on a case by case basis.
Mono crystalline solar panels are more efficient than polycrystalline panels.
Mono cells are also found in ridged panels.
To make my point let s compare the specs of 2 similarly priced good quality solar panels that are available in australia in 2019 one polycrystalline and one monocrystalline.
The polycrystalline solar panels are also made from silicon.
Monocrystalline solar panels tend to be more efficient in warm weather.
As a result monocrystalline panels are more efficient than their polycrystalline counterparts.
Performance suffers somewhat as temperature goes up but less so than with polycrystalline solar panels.
It is mainly used in large scale commercial applications.
Polycrystalline silicon p si panels on the other hand are made of wafers from various silicon fragments melted together.
Instead of black they come in a blue finish with perfectly square wafers making them quick to distinguish from mono si panels.
Polycrystalline solar panels generally have lower efficiencies than monocrystalline options but their advantage is a lower price point.
Moreover they need relatively less space as compared to any solar panels monocrystalline solar panels can generate up to four times more electricity than thin film solar panels.
Also polycrystalline solar panels tend to have a blue hue instead of the black hue of monocrystalline panels.
Monocrystalline silicon solar panels are more space efficient these solar panels are capable of yielding the highest power outputs.
Crystalline panels need to be as perpendicular to the sun as possible to achieve the best performance.
Monocrystalline solar cells have historically had a higher peak efficiency and were more readily available than polysilicon solar cells.
The blanket statement that monocrystalline panels are better than polycrystalline cells however is not accurate.
They are more efficient than polycrystalline cells and can be smaller in size for the same output.
Polycrystalline solar cells are blended from multiple silicon sources and are slightly less efficient.
If you can fit the system size you need on your roof with more affordable less efficient panels then there is no difference between mono and poly.
Polycrystalline solar panels generally have lower efficiencies than monocrystalline options but their advantage is a lower price point.
Thin film technology costs less than mono or poly panels but is also less efficient.
They normally have a 335w output for a 72 cell panel.
However when we turn away from premium ultra efficient panels and look at more standard offerings the efficiency of mono and poly panels are actually quite similar.