Quick Answer
Common issues with pole-mounted solar arrays include tracking system malfunctions, inadequate structural support, and high wind loads causing panel damage or system collapse.
Structural Support and Stability
Pole-mounted solar arrays require sturdy structural support to withstand wind, snow, and seismic loads. A minimum of 3.5 inches (8.9 cm) of galvanized steel or aluminum pipe is recommended for the pole’s diameter, with a 10-gauge or heavier steel wire or cable for the panel mounts. Ensure the array is level and plumb, with no sagging or uneven panels.
Tracking System Issues
Pole-mounted solar arrays often employ tracking systems to maximize energy production. However, these systems can be prone to mechanical failures, such as gear striping or motor overheating. Regular maintenance, including lubrication and gear cleaning, can help prevent these issues. Consider using a tracking system with a low-maintenance design, such as a direct-drive system with fewer moving parts.
Panel and Mount Damage Prevention
High winds can cause panel damage or system collapse if the mounts are not designed to withstand such loads. Use panel mounts with a high wind rating, such as those with a 130 mph (209 kph) wind load capacity. Consider adding wind load mitigation features, such as diagonal bracing or anti-vibration mounts, to reduce the risk of damage or system failure.
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