What is the best type of solar panels for my home, mono-crystalline or poly-crystalline?
There is often great debate over whether you are better off with poly-crystalline cells in your solar panels or mono-crystalline solar cells in your solar panels.
I think this question is one of the last things I would concern myself with if I were buying solar electricity panels and here is the reason why.
When 2 solar panels are marketed at a particular wattage (say 250 watts) it means that (at standard test conditions) both will produce at least 250 watts, provided both of these panels have no negative power tolerance in their specifications.
This is the case even though one of these panels may use polycrystalline cells and one of these panels may use monocrystalline cells.
What is important to remember is that any slight differences in cell efficiency between polycrystalline or monocrystalline panels is already taken into account when they are rated and so is of little or no relevance to you as the end consumer.
It may be that the mono crystalline panel in the example above is fractionally smaller than the poly crystalline panel that produces the same amount of power, because perhaps the mono crystalline cells used my be slightly more efficient but in the end both are going to produce the same amount of power.
A better cell efficiency simply means that the mono crystalline panel might be fractionally smaller but if you look at the sizes of commercially available poly-crystalline panels and mono-crystalline panels of the same wattage (say 250 watts) they are very close to each other in size.
Both types of solar cells usually have a similar temperature coefficient and so in practicality both are likely to produce an almost identical amount of power over time.
Similarly, there is no evidence that either poly-crystalline solar panels or mono-crystalline solar panels decay at a different rate over time.
This is why I would not be too concerned about whether the solar companies I talked too offered me mono-crystalline or poly-crystalline solar panels.
We sell both types of panels and so we don’t really care which type you want to use we are happy to offer you a quote on both. Mono-crystalline panels are generally slightly dearer but only by 5% percent or so.
Visit our solar panels page to see what models of panels we sell