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How to Clean Solar Panels on Roof : Easy Guide for Beginners

solar system installation | Solar National

‘Minimal maintenance is required after solar system installation on your roof’ – This statement is actually true. They are designed to operate 25-30 years with ease without any major obligations in the way. However, they are static in the same place for possibly years to come and this makes it prone to dust accumulation. 

Hence, cleaning the solar panels once in a while is recommended. Regular dusting on the photovoltaic modules can decrease its efficiency by 30%. Clean modules can continue operating in their maximum efficiency for years to come.

Why do you need to clean Solar Panels? 

Here are some reasons why you need to keep the modules clean – 

  • Dust accumulation can get severe in the long term and this may require professional cleaning assistance, hence regular cleaning can save you more. 
  • Australia has a relatively harsh climate and hence, more chances for it to get dirty from strong winds and possible storms. 
  • Some service guarantees by solar company Sydney state regular cleaning as a necessity clause in order for it to cover, make sure to verify it.

What are the tools required for Solar Panel Cleaning? 

It is relatively easier than some might think as all it takes is basic everyday tools you may use for dusting in your home. 

A hose and a bucket of soap water is the most basic and effective method to clean solar panels on roofs. 

What to use? 

✔ A hose with normal water pressure just for cleaning purposes. 

✔ Soap water solvent and a soft non abrasive sponge. 

What to avoid? 

✘ Harsh cleaning objects that might scratch the modules on the panels which may reduce its efficiency. 

✘ High pressure water which may seriously damage the modules. 

5 Steps to Clean Solar Panels on Roof 

  1. Dusting with a Soft Brush 

Start off by dusting the modules with a soft brush. The bristles used in wiping the dust off should not be hard as it can damage the cells hence, make sure of the material beforehand. 

If you regularly dust the plates once in a while, you don’t even need water to completely clean it off as just brushing will be enough. 

  1. Use a Water Hose with Light Pressure 

Using a hose is an effective way however, control the water pressure from the nozzle and keep it low. 

While using the water, you need to make sure the temperature is adequate and is somewhat near to the temperature of panels. Excessive difference in the degrees may result in the glass cracking and it can be expensive to deal with thereafter. 

Water hose is an efficient way to completely clean solar cells and you can even access the hard to reach corners easily. 

  1. Scrub the dirt marks away 

Dirt marks are often stubborn and may require proper scrubbing to get rid of it. They cover the specific cell area and reduce sun efficiency hence, you should get rid of them immediately. 

Start off by spraying water in the affected area, the pressure will remove the majority of the marked area which makes the process easier. 

Gently and steadily get rid of the area with a wiping cloth, make sure to apply only soft pressure on the marks as it will slowly go away. 

  1. Let it Dry 

After a thorough wash, let the washed panel modules dry in the sun. To prevent water spots, use a squeegee (you can also use a sponge or a soft dry cloth in case you don’t have access to it) and remove the excess water. 

Start from the top and pull down in a smooth continuous motion, this will ensure the panels are dried without incurring damage to the photovoltaic cells. 

  1. Get Solar Panel Cleaning service for Complex Job

Solar panels are commonly exposed to harsher climate, pollution, and bird poop. If the dirt is not cleaned frequently, this can affect the module’s efficiency. 

The procedure may get difficult at such times, and hence you should inquire for a professional solar cleaning service. 

With advanced tools and equipment, they can carry out the process easily without affecting your warranty. They can also give you advice to keep it in pristine condition for years to come. 

Conclusion

Cleaning the sun modules on the roof is relatively easy, all it takes for you is to take some time off once every 6 months and get your basic equipment ready and they will remain in optimum condition for years to come improving its longevity. 

Looking for the best home solar panels system? Talk to our friendly team at Solar national and we will help you select the best plan for you. From complete system installation to solar batteries Sydney, we are your all in one service  partner for life! Contact us today.

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