Snow slides off solar PV panels somewhat well, but not uniformly and the conditions must be right. Our roof has a 40 deg pitch so this will shed snow better than a 30 deg or less pitch. Note how there is an accumulation of snow that has slid off our roof an onto the lower roof. On the left side the snow has fallen two stories down to our deck. It is important to consider the dangers of snow and ice falling onto people and property below. The weather conditions were cold with low wind. Sufficient snow weight caused the snow to slide off the panels. Date of photo 8 Feb 2011.
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