Mono crystalline silicon panels are made of cells that have been grown from a single crystal and poly-crystalline is more of a cast process. Technically the mono-Si cells are more efficient since the crystal structure is continuous but new technology has narrowed the gap considerably. Mono-Si may still command a bit of a premium but there is not much difference today. Mono-Si panels will appear black and poly-Si will appear dark blue. Sometimes mono-Si panels with black frames and black back sheet are specified because they just look better.
How much is solar panel insurance?
As solar energy keeps growing in popularity across Ontario, homeowners are weighing the details of going solar—and one of the
