Skeptics of renewable energy often claim—usually with an eye roll—that solar power doesn’t work well in snowy climates.
When most solar panels were stationary and one-sided, this idea carried some weight. But now, most panels move on an axis to follow the sun throughout the day, and an increasing share of panels have silicon on the front and back, making solar more effective even in places with regular snowfall.
Here’s the latest: A recent paper led by researchers at Western University in London, Ontario shows that the use of “bifacial” photovoltaic panels—solar panels that take in sunlight from both sides—produces substantially more electricity during winter compared to using one-sided panels, based on data from a solar array that has both kinds of panels.
“I was surprised how striking the results were,” said Joshua Pearce, an electrical…