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In winter the front row of photovoltaic panels covers the back row

If snow covers the panel's surface, it acts as a physical barrier, blocking the sunlight from reaching these cells. Consequently, if panels are completely opaque with snow, their electricity generation will drop to near zero. During the winter. . But when it accumulates on your solar panels, it may lead to several challenges. Even small amounts of shading can reduce your array's output and lower system efficiency. Read on to find out why this is the case, how. . [PDF Version]