Solar Panels Need To Be Ideally Cleaned In The Night As There Would Be No Incidental Light Which Can Start Electricity For Conduction.
Cleaning Can Be Done By Using A Wet Cloth When The Day Is Dry Or A Hose Of Water So That Dirt Can Be Removed To Ensure Moisture Does Not Stick Around The Solar Panels Based On Sensuality Your Frequency Of Cleaning Has Been Decided.
The Frequency Of Cleaning Will Be More In The Summer Season, Kindly Ensure That You Do Not Make Any Attempt To Clean The Wiring Done Underneath The Solar Panels.