Frequency: Generally, solar panels should be cleaned at least twice a year. However, the frequency may vary depending on the location and environmental conditions.
After Major Weather Events: Cleaning is advisable after events like dust storms, heavy rains, or pollen season.
Performance Monitoring: If there's a noticeable drop in energy output, it might be time to clean the panels.
Safety First: Always prioritize safety. If the panels are on the roof, use appropriate safety gear, and consider hiring professionals.
Timing: Clean panels early in the morning or late in the evening when they are cool. Cleaning hot panels can cause thermal shock and damage.