More people are opting to buy solar panels. One of the keys to getting the most out of your solar panel is make sure that it receives regular maintenance. Your solar panel will need to be cleaned on a regular basis. There are several signs that indicate it is time for a solar panel cleaning.


It is important to pay close attention to your electric bill. If you have noticed that it has steadily crept up, then your solar panel may be to blame. The solar panels will not work as efficiently if they are dirty or damaged. That is why your home will end up using more energy.

Mildew on the Solar Panels

You should inspect the edges of the panels. If there is discoloration around the edges of it, then mold may be to blame. Your sun will have a harder time reaching the panel if there is mold inside of it.

Panel Discoloration

If your panel is discolored, then it likely has bird droppings, dirt, salt and road grime. Those things can block the sun and make it harder for your panel to work.

Mildew in Your House or on Your Driveway

Your house and driveway is exposed to the same moisture that your solar panel is exposed to. That is why if you notice mildew in those areas, then you may have mildew and mold in your solar panel.


The place that you live is one of the factors that will determine how often you will need to get solar panel cleaning. You will likely need to get your solar panel cleaned more often if you live in an area that has a lot of rain. You may also need to get your solar panel cleaned more often if it is close to the highway.

The Panel Is on the Roof

If your solar panel is on a flat roof, then you may have to get it cleaned more often. Flat roofs are more prone to developing mold. Dirt and pollutants are also more likely to get into the system if you have a flat roof.

It Has Been More Than a Year

Experts recommend that you get your solar panels cleaned at least once or twice a year. That is why if it has been longer than a year since you had your panels cleaned, then it is time for you to schedule one.