Cleaning Solar Panels: Why? When? How?

As solar panels don’t have any kind of moving parts, they require very little maintenance. The cleaning of solar panels, on the other hand, should not be ignored when performing routine maintenance. This article will teach you how to clean solar panels correctly.

What Makes Solar Panels Get Dirty?

As dust and pollutants in the air settle on solar panels over time, they become dirty.

If the PV installation is near industrial complexes or construction sites, dust can accumulate on the modules even faster.

Fertilizer and nitrogen-rich particles can slowly corrode solar components on farms where solar panels are installed.

Another notorious source of shade, bird droppings, can cause hot spots on solar panels by reducing the amount of energy they can produce.

If you have solar panels, how often should you clean them?

When your solar panels are producing less energy, it’s time to clean them.

Monitoring systems with microinverters and power optimizers, the most advanced monitoring systems currently available, allow you to quickly identify dirty panels or when the entire system is generating less energy than expected.

In addition, rainwater settles on flat-installed solar modules, leaving dirt behind, making them resistant to self-cleaning.

Cleaning solar panels: a step-by-step guide

Turn off your system completely.

According to the user manual or operating manual of the inverter manufacturer, system shutdown is required before any cleaning can be performed. Shutting down DC systems will be required. The main switch on the solar panel should be used to turn off the AC systems.

Make sure all rainwater collection systems and gutters are disconnected or blocked.

To prevent dirty water from entering your rainwater tank, disconnect or shut off your guttering system where rainwater tanks are installed.

Pick a time of day when it’s not too hot or too cold.

When hot panels and cool water are coupled, rapid temperature swings can produce cracks in the glass. The water you’ve used on the boards may evaporate quickly if they’re exposed to direct sunlight, leaving dirty marks. This has the prospective to extinguish all of your hard work. Cleaning is best done early in the morning when the weather is cool and peaceful. The filth and grime on the panels may have been softened by overnight dew, needing less water and energy to clean. A gloomy day or a mild evening are ideal alternatives if you can’t clean your solar panels in the morning.

It’s best if you can remove your panels from the ground before cleaning them.

If you can, clean your panels from the ground for safety’s sake—direct water from a hose onto your solar panels. To get the water to the meetings, attach a hose to the faucet and fit a suitable nozzle.

Only water the tops of your solar panels, not the sides or bottoms.

The back of your panels can get wet, but you shouldn’t put water on them or let it get into the gap between your meetings and your roof.

Use mild soap and a soft cloth to eliminate tough grime.

Simple cleaning solutions such as water and a mild soap can do the trick without breaking the glass. Quality soft brushes and squeegees with one plastic blade side and a sponge covered in cloth the other, as well as a long extension, can make the perfect tool and keep you stable.