If you can t clean your panels from the ground hire a company.
Washing solar panels on roof.
However if they are located on the roof then you must use a soft brush coupled with a long extension to make the work easier and safer from the ground.
Solar panel wash modifies the surface tension of the water so instead of water beading up it will form a continuous film across the solar panels to lift dirt and debris.
Clean your solar panelson an overcast day early in the morning or in the evening.
Clean the surface of the solar panel with a soft cloth or sponge.
Early morning can be a particularly good time for cleaning as dew that has settled on the panels overnight will likely have softened grime.
Fill a bucket or spray bottle with warm water and soap no other special equipment is needed.
These spots are not dangerous and will only remain there until next time it rains.
This water is free from salts and calcium that otherwise leave little ugly white spots on your panels when dried.
Avoid using water with high mineral content.
You do not have to clean the wiring underneath.
The most effective way to clean your solar panels is with a hose and a bucket of soapy water.
Because you don t want to scratch the panels in any way it s best to use just water and a non abrasive sponge to apply soapy water.
When and how often to clean your solar panels early morning or in the evening ideally on an overcast day is best.
Because you don t want to scratch your system in any way it s best to use just water and a non abrasive sponge to apply soapy water.
Too much sun on wet panels can cause them to dry too quickly and smudge.
Cole said solar panel wash is especially helpful in arid locations where dust is high and water is scarce because the wash allows for less water to be used in cleaning.
For the diy minded you should find the materials at home.
To avoid getting limescale buildup on your solar system you could rinse the panels with deionized water when you are done washing them.
Show extra caution if cleaning your solar panels requires you to climb up on the roof.
So if your solar panels are on the roof clean them from the ground.
Get a hose a high pressure stream of water and a nozzle that can handle that power then take aim.
If your solar panels are installed on the ground then you can opt to use a simple sponge to clean them up or a soft brush as well.
If the sun is beating down on the panels any water used can quickly evaporate and dirt will become smeared.