Quick Answer
When installing solar panel systems in winter, consider the increased load of snow and ice, ensure proper panel angle and orientation to minimize snow accumulation, and prioritize system grounding to prevent electrical shock.
Choosing the Right Mounting System
In areas prone to heavy snowfall, it’s essential to select a mounting system designed to handle the increased weight and stress on the solar panels and racking system. Look for systems that meet or exceed local building codes and standards for snow load, such as those found in the International Building Code (IBC). For example, the IBC requires solar racking systems to withstand a minimum snow load of 20 psf (pounds per square foot) in the northern United States.
Ensuring Proper Panel Angle and Orientation
Proper panel angle and orientation can significantly impact snow accumulation on solar panels. Aim to install panels at an angle between 15° and 30°, with south-facing panels receiving the most sunlight and generating the most power. In areas with heavy snowfall, consider installing panels at a steeper angle to prevent snow from accumulating on the panels. This will help reduce the risk of snow-related damage and ensure optimal energy production.
Grounding and Electrical Safety
In winter, the risk of electrical shock increases due to snow and ice accumulation on the solar panel system. Ensure that the system is properly grounded to prevent electrical shock and damage to the system. Use grounding rods that meet or exceed local electrical codes, and ensure that all connections are secure and free of snow and ice. Regularly inspect the system for damage and ensure that all electrical components are functioning correctly.
Find more answers
Browse the full Q&A library by topic, or jump back to the topic this question belongs to.