Many people worry about the effects of snow on their solar panels. They may worry that it will clog them or prevent them from producing electricity. But is snow actually damaging them? To find out, take a closer look at this infographic from Solar Power International.
The good news is that the answer to this question is “no.” Solar panels are usually built to withstand whatever Mother Nature can throw at them and are usually designed with durability in mind.
They can withstand snow and other winter precipitation, often producing excellent results.
In areas with heavier snowfall than usual, solar panels may accumulate up to 40 pounds per square foot of panel area. Usually, however, a light dusting of snow will melt quickly and leave your panels ready for the next winter storm.
When considering the effects of snow on solar panels, it’s essential to remember that there are several elements which keep them secure and functioning optimally under any condition. Most importantly, sunlight still reaches the panels despite snowfall, capturing energy which can then be converted into useful electricity for your home or business.
This is a much more efficient way for the panels to generate energy than they would have done otherwise.
Another factor in favor of solar panels is their dark color, which makes them warmer than their environment and accelerates melting of snow accumulation. A five-year study conducted by Northern Alberta Institute of Technology discovered that snowfall only causes an average energy loss of 3%.
It’s worth mentioning that solar panels are typically installed at an angle to avoid snow accumulation and conserve energy lost to it. Installation racks are usually tilted at 30 to 45 degrees, keeping snow away from accumulating and impacting power output from the panels.
In many regions, it’s also possible for a light dusting of snow to fall onto solar panels and clean them when it melts or slides off.
One other consideration is that solar panels can be covered with a snow cover or translucent fabric to protect them from cold and prevent snow accumulation. These covers are easy to install and may help expedite melting of any accumulated snow.
When considering adding a snow cover to your roof, be sure to select one that is compatible with your solar system. Doing so can save time and money in the long run while also protecting your panels from damage.
It is essential to never try to clear snow off of your solar panels with a metal roof rake, as this can cause serious damage and void the warranty. Instead, use a gentle brush with no power tool for clearance; alternatively, have someone professional do this task for you as it will be safer and less likely to harm the array.