Quick Answer
For heavy snow environments, the best solar panel types are monocrystalline or polycrystalline panels with a high snow load rating, typically 3,200 pounds per square foot or higher, and a low snow shedding angle of 15 degrees or less.
Choosing the Right Solar Panel for Heavy Snow
When selecting solar panels for heavy snow environments, it’s essential to consider the panel’s snow load rating. Most standard solar panels have a snow load rating of around 1,600 pounds per square foot, which is not sufficient for areas with heavy snowfall. To ensure the panels can withstand the weight of snow, look for models with a snow load rating of 3,200 pounds per square foot or higher.
Understanding Snow Shedding Angles
The snow shedding angle is another critical factor to consider when choosing solar panels for heavy snow environments. A lower snow shedding angle of 15 degrees or less allows snow to slide off the panel more easily, reducing the risk of damage and power loss. Some manufacturers, such as SunPower, offer solar panels with a snow shedding angle as low as 12 degrees.
Sizing Solar Panels for Cabin Electricity
When sizing solar panels for a cabin, it’s essential to consider the energy needs of the cabin, the amount of sunlight it receives, and the local building codes. As a general rule, a 1,000 to 2,000 watt solar panel array is sufficient to power a small cabin, depending on the energy efficiency of the appliances and lighting. Be sure to consult with a solar professional to ensure the solar panel array is properly sized and designed for the specific cabin and its energy needs.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.