How do solar systems respond to cold weather conditions and snow load?
Systems are designed to operate from -40C to 90C, and have been proven reliable under very cold conditions with extensive snow buildup. If there is a light snow-fall on a bare system, the array will tend to be the first part of the roof that melts off because the cells retain some heat. If there is snow build up, then the snow will melt at the same rate across the whole roof since there won’t be any retained warmth in the solar array.
