Bifacial solar modules shine in snowy environments

The researchers found that by using bifacial solar modules, snow losses could be cut from double digits to just 2% on an annual basis.

As solar costs have dropped, it now makes economic sense to implement them even in the deep north, yet there is concern about the effects of snow on energy generation. While solar panels operate best in colder temperatures, panels covered in snow will generate less energy, known as snow loss.  A study conducted at Western University in Ontario, Canada, shows how to beat snow losses using solar energy systems.

The difference between bifacial and monofacial modules is that bifacial modules absorb light from the front and back, while monofacial only collect sunlight on the front. The study analyzed snow losses on these two types of systems using hourly data including energy, solar irradiation and albedo, the measure of the diffuse reflection of solar radiation.

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Source: PV Magazine

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