Why Do Solar Panels Need Cleaning?
Cleaning solar panels on a regular schedule is essential to maximizing energy output, lowering power bills, and maintaining the panels for the long term. Dirty solar panels produce less energy than clean panels. This results in higher electricity bills because the solar supplement is reduced. Most residential solar panels produce from 250 to 400 watts per hour per panel. So a clean four-panel system that outputs 1,000 to 1,600 watts per hour would drop to 670 to 1,100 watts per hour if highly dirty.