Quick Answer
Mount polycrystalline solar panels on a sturdy, level surface at a 30-degree angle, secured with strong clamps or a rail system to prevent damage from wind and water. Ensure the panels' frames are clean and free of debris before attachment. Regularly inspect the mounts for signs of wear.
Choosing the Right Mounting System
When selecting a mounting system for polycrystalline solar panels, consider the weight capacity, ease of installation, and durability. A rail-based system with adjustable clamps is ideal for most residential installations, allowing for flexibility and adaptability to different roof types and panel sizes. For example, a 60-cell polycrystalline panel weighs approximately 35 pounds, so the mounting system should be rated for at least 40 pounds per square foot.
Panel Orientation and Tilt
Polycrystalline solar panels should be mounted at a tilt angle of 30 degrees to maximize energy production while also preventing water from accumulating on the panels. This tilt angle also helps to reduce snow accumulation in winter months. For example, a 12V 250-watt polycrystalline panel can produce up to 12 amps at 20 volts when mounted at a 30-degree angle. Regularly check the panel tilt to ensure it remains within the optimal range.
Securing the Panels
To prevent panel damage from wind and water, secure them with strong clamps or a rail system that is level and plumb. Use screws or clips specifically designed for solar panel mounting, and ensure a minimum of 2-3 inches of clearance between the panel and any obstructions, such as roofing material or vents. Regularly inspect the mounts and panels for signs of wear or damage, and make adjustments as needed to maintain optimal performance.
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