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Solar Panel Cleaning

Residential Solar Panel Cleaning

Solar Panel Cleaning

Increase Your Solar Panel's Efficiency

Solar panels are a great way to save money and create a sustainable energy source for your house, but installing a solar panel system is a large investment.  In order to make sure that you are getting the most out of your investment, you need to consider working with a solar panel cleaning company to make sure that your system is working as efficient as possible.  Sunshine Windows customer's report an average of a 30% increase in system output after having their solar panels cleaned.  



When you choose Sunshine Windows, you get the piece of mind of knowing that we are appropriately licensed, bonded and insured.  Whether you are choosing us to clean your business or your residence, you know that you a properly protected.


Built on a reputation of providing a superior customer experience, when you book and appointment with us, you know that we will show up on time and that you can count on us to get the job done right the first time. 


Sunshine Windows has over 20 years experience cleaning solar panels for our commercial and residential customers.  Long before most homeowners were considering installing solar panels, we were helping customers keep their solar panel systems clean.  We clean over 100,000 solar panels a year for commercial and residential customers.

family owned  since 1978

Sunshine Windows has been family owned an operated since 1978.  We have built our reputation as Southern California's premier solar panel cleaning, window cleaning a pressure washing company.

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Commerical and Residentai Solar Pane Cleaning Service

More Information About Solar Panel Cleaning

Do I need to clean my solar panels?

The answer is yes.  Like anything else, the better you take care of your solar panels, the better they will work for you.  Developing a regular maintenance routine for your solar panels will make sure that you are getting the best value out of your system.  

Dust, leaves, bird droppings and other environmental deposits will keep your panels from functioning at their full capacity. Clean Technica's report showed that the US National Renewable Energy Laboratory (NREL) showed a potential 30% energy yield loss per year for solar panels that were not cleaned regularly.  

How Often Should I Have My Panels Cleaned?

The answer to this is: "It depends". 


Kipp and Zonen created a whitepaper ​that discusses the effects of soiling on solar panel arrays.  

There are many factors that go into deciding how often your solar panels should be cleaned.  Some of these factors include geographic location, environmental factors such as wind, dust and humidity, distance from trees, and angel of your array.  

As an example, dirt tends to be worse in desert areas like Southern California because the air tends to be dry and dusty. 

The experts at Sunshine Windows can help you determine how often your panels need to be cleaned and get you set up on a regular cadence to make sure your system is working at it's top efficiency.   

Does The Rain Clean My Solar Panels?

In a short answer, No.  Large accumulations of dirt, dust, bird droppings and other environmental deposits make it so that a simple rain storm with not give your solar panels the cleaning that they need in order to work at their optimal efficiency.    

Can I Just Use a Garden Hose to Clean My Solar Panels?

While you may be able to wash away some of the topical dirt that is on your solar panels, simply spraying them with a garden hose is not going to provide enough cleaning to make a large difference in you system's efficiency.  Furthermore by using regular water on your solar panels, it is likely that they will develop hardwater (calcium) buildup over time.  The thick layer of calcium allows for less light to penetrate and reduces the output of your solar panels.  Sunshine Windows uses deionized water for solar panel cleaning.  This is accomplished by running our water through a 45" 135lb mixed bed deionization tank prior to cleaning your solar panels.  

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