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How to Clean Solar Panels: DIY vs. Professional⚡NSW 2024

Posted 29 Jan

Cleaning Your Solar & Battery Systems: Everything You Need to Know


Like anything that is well-maintained, solar panels run optimally when they’re looked after.
Depending on where you live, solar panels can gather dirt over time which can negatively affect the production rate of electricity that your solar panels generate. Other elements such as leaves, bird droppings, and moss can all contribute to a reduction in solar panel production, so keeping the panels clean is essential to getting the most out of your system and investment.

How Often do you Need to Clean Solar Panels?

To determine your solar cleaning rate, it will really depend on where you are situated and your environment.

If you live in a dusty area, the wind can kick the dust up onto the solar panels, and it can create a layer on the panel surface over time, reducing the production of the solar panels. If you’re close or near overhanging trees, it can indicate that your panels may have leaves or other debris on them that might need cleaning.

In general, it is good to clean and check your panels every 6 months to a year.

Dirty solar panels

DIY Solar Panel Cleaning: Things to be Aware of

When looking to clean your solar panels, you can either hire a professional solar cleaner who clean panels thoroughly or have a go at it yourself. Alternately, if you’re wanting to have a go at cleaning the solar panels yourself, here are things to consider.
Cleaning panels yourself can be dangerous and cause injury. We recommend hiring a professional.

Identify High-Moisture

Identify your environment to adjust your cleaning schedule and for the tools you will need to clean the panels.

If you live in a high-moisture area, moss can develop on the panels which will need more attention to remove as opposed to only dust.

Prioritise Safety First

It is important that when cleaning your own panels, that you exercise all safety measures.
It is safer to clean your panels from the ground with a long-handled tool – we do not recommend getting on the roof as it is dangerous.

How Much Rain do You Get?

If you live in a place that rains constantly, your due time to clean the panels may have larger intervals between cleans as the rain will rinse most of the dirt and dust that accumulates on the panels.

What Tools and Equipment do you Need to Clean Solar?

Lucky for you, you’ll only need standard cleaning equipment. Something like a sponge or a soft-bristled brush that scrub the panels without scratching the glass as well as a hose to rinse off the soap/dirty water for a deep clean.

Simple spraying the entire array with the soap (you can purchase soap bottles that attach to your garden hose) until it is fully covered, then with your long scrubber, lightly scrub to remove dirt. If you are attempting to remove moss, it may take longer.

Once scrubbed, simply rinse and you’re done! You may need to repeat depending on how dirty the panels are.

Wear eye protection to protect your eyes from soap, dust, or any other debris from cleaning.

Use water-based or solar cleaner specific soap products.

Exercise care for yourself and those around you.

Clean vs dirty solar panels
Cleaning solar panels

DIY vs. Professional Solar Cleaning: When to hire an Expert?

If there is more than just dirt on your solar panels, consider getting a professional cleaner in to do it for you. By getting a professional cleaner to come out to your property, there is no risk to you from getting on the roof, it will be done properly the first time, and its done with specialised tools.


You should contact a professional solar cleaner if:

- You have tall trees close to your house

- You find that it is too dirty to clean yourself

- You do not have the equipment or can’t access the panels

- Your house is more than single story, if so, we highly-recommend getting a professional.

How do I know if I cleaned my Solar Panels properly?

Once the panels have dried, you can inspect the panels to ensure your cleaning was successful and the dirt and other debris has been removed.

You can also check to see if your clean made a difference by looking at your solar production analytics and seeing if any changes have occurred in your solar production.

Solar analytics

What NOT to do when Cleaning your Panels

When attempting to clean solar panels yourself, there are a few things to avoid, ensuring minimal risk of injury and damaging the solar panels. We strongly recommend hiring a professional solar cleaner to maintain your panels if they are not easily accessible from the ground.

No Harsh Soaps

Avoid using harsh detergents that consist of strong chemicals that may result in corrosion of panels, resulting in damage.

Use either cleaner that is designed for solar panels, or a water-based cleaner soap and rinse with water.

Avoid Close Pressure Washing

Only use a pressure washer when spraying from a distance. Spraying closely will result in damage to the panel waterproofing and potentially negatively impact its production.

Avoid Scratching

Don't use harsh brushes or anything with ‘teeth’ (brooms with hard bristles, anything that is not soft etc.).

You may scratch the surface of the panels, lowering its efficiency, defeating the whole purpose of cleaning your panels in the first place.

Cleaning at Heights

We do not recommend attempting to clean your solar panels from the roof or any high places, as it is unsafe and could cause serious injury, and in some cases, death.

Contact expert solar panel cleaners today.

Solar panel cleaning pressure washer

How do you Maintain Home Battery Storage?

As more business and homeowners adopt solar battery storage for their properties, it becomes more important for them to know how to look after, and properly maintain their battery modules.

Ensuring your battery is at full health can not only give you peace of mind, but it also allows you to continue getting maximum performance out of your investment. A battery that isn’t working at full capacity, or at all is wasted money and, in most cases, can be fixed relatively fast.

Consistent Battery Health Checks

In the installation, your battery installer will have setup a solar performance analyser, where you can see if your system is working at its full potential. From here you can identify errors, when it began, and how long it has been going on for.

Manufacturers may provide updates for your battery, so regularly check to see if there are any available updates to install for your battery. These could have small fixes that allow for more efficiency or removal of any glitches they may be causing problems.

Inverter battery installation
Home battery storage

Clean Environment

Maintain a well-ventilated area around the battery to ensure the energy storage system remains cool and can combat the harsh Australian heat on those summer days.

Periodical checks

An easy way to maintain your battery is to simply have a look over it. You don’t need to be a technician to see if the battery and wiring has any signs of wear or malfunction. With the combination of your batteries statistics analysis, and physical check-ups you will know if there is anything wrong.

Conclusion

By ensuring your solar and battery are working to their fullest capacity, you can be assured your investment will be fulfilled in the desired expected timeframe. Whilst both solar and battery systems are designed with longevity in mind, it is important to confirm your system is working at its fullest within the years of its expected lifetime to ensure the maximum returns and benefits.

Contact Your Local Experts

If your solar or battery system is having issues, we have a local team that can come out and provide solar health checks to ensure your system is working properly. Please note that we only provide this service in the Newcastle, Maitland, and Hunter region.




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