Top four things you might not know about solar panels and cold, snowy days.
1. Panel Design and Angle: Solar panels are typically installed at an angle, which helps snow slide off naturally. Most modern panels have smooth, sloped surfaces that prevent snow from accumulating and blocking light absorption, allowing panels to self-clear during warmer periods or sunny days.
2. Temperature and Electrical Generation: Solar panels convert light into electricity, not heat. Contrary to common belief, cold temperatures can improve panel efficiency. Photovoltaic cells actually perform more efficiently in cooler conditions, potentially increasing electricity production during winter months.
3. Minimal Performance Impact: Light snow coverage typically reduces panel output by only 10-30%. Once snow melts or slides off, panels quickly return to full productivity. Many solar installations in snow-prone regions are designed with this seasonal variation in mind.
4. Our Production Estimates Account For Snow Coverage: Otter Energy solar energy production estimates fully account for snow coverage and any loss of production in wintertime. Be wary of any solar proposal that does not contain at least 20% losses for snow in Jan-Feb!
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