man inspecting panels

Solar Panel Maintenance: When do panels need servicing?

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Solar panels can be a great addition to your home or business, but what is involved in maintaining your system? In this guide, Canstar Blue outlines everything you need to know about solar panel maintenance and servicing.

More Aussies are hopping on the solar power bandwagon and having panels installed on their roof. But, how many know what maintenance is required to keep solar panels in prime condition?

Just as you would cars or household appliances, solar panels also require regular servicing and maintenance to ensure all is in order. We’ve created this guide to help you identify when you should get your panels assessed, who’s qualified for the job, how much it could cost you and what you could risk by putting it off.

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Do solar panels need maintenance?

Just like every system, solar panels require maintenance over their lifespan. Regular maintenance helps keep the panels in good condition so they can generate energy to their full potential. Over time, natural surroundings can have an impact on the performance of solar panels. Dust, leaves, animal droppings and other debris can gather on the panels and reduce their efficiency. Water can also be a problem if it makes its way into the internal system.

You can ask your installer for recommendations on what to watch out for and how regularly to check on your panels and other parts of your system.

What maintenance is required for solar panels?

man adjusting panel

Solar panel maintenance requires a professional to come and check that everything is working as it should. During solar maintenance, commonly referred to as a service, a professional can check that the solar panels are clean, secure and don’t have any defects. They’ll also check that nothing has deteriorated or corroded since the installation and conduct electrical checks to ensure all components and emergency procedures are operating properly. They will also check that no water has made its way into your system.

The servicer will usually clear any major debris during the maintenance check, but a more in-depth clean may require an additional fee. If there are any issues, such as faulty inverters or poor installation, these can also be identified and fixed during the service.

If you have angled panels, cleaning is not really necessary unless you live in a particularly dry area, an area with a high level of pollutants or have a problem with animals/tall vegetation. Generally, the rain does a good enough job of keeping solar panels clean: however, if you are concerned, you can either have them professionally cleaned or clean them yourself. Please note that it is not recommended that you go up onto the roof to clean solar panels, especially not without proper training and safety equipment. If you are determined to clean your solar panels yourself, make sure to take the appropriate precautions and turn off your system first. Be sure to check what the manufacturer recommends and follow their guidelines.

How often do solar panels need maintenance?

Solar panels should be serviced about once every five years, but it is always best to check what your manufacturer recommends. If anything happens that causes concerns about the performance of your solar panels, have a professional to take a look.

Here are some warning signs that might call for a one-off inspection:

  • a significant change in the system’s solar production
  • an alert from the monitoring software or solar inverter
  • a large build-up of debris
  • you suspect an animal may be damaging your system (for example, a possum or bird)

What could happen if I don’t maintain my solar panels correctly?

If not maintained correctly, there are risks for decreased performance or even solar panel fires. With proper installation solar panel fires are rare, however it is still a risk that can be reduced by having a professional check that your solar panels are functioning correctly.

Essentially, maintaining your solar panels correctly ensures that you’re getting the most out of your solar panel system. Otherwise, you may be missing out on valuable energy production and potential energy bill savings.

How much does a solar panel service cost?

Generally, a standard solar panel service can cost from $150-400 for a 6.6kW system, according to figures from Solar Choice. Additional costs may occur if repairs are required though. Most solar panels have a lifespan of 25-30 years, which means that in this time they’ll need five to six services – if done every five years, solar maintenance could cost you about $2,000 over the lifetime of your system.

Who can service my solar panels?

man checking solar panels

It is recommended to have a professional, such as a licensed electrician or a Clean Energy Council-accredited solar panel system installer, conduct the service. This can either be the company that installed the system or an independent company.

It is best to shop around and get quotes from a few reputable businesses before booking the service.

Solar Plans & Prices

Here are some of the cheapest solar-specific deals from the retailers on our database. These costs are based on the Ausgrid network in Sydney but prices will vary depending on your circumstances. We show one product per retailer, listed in order of lowest price first. Annual price estimates assume general energy usage of 3900kWh/year for a residential customer on a single rate tariff. Price estimates exclude solar feed-in tariff credits. These are products from referral partners†. Our database may not cover all deals in your area, and please check retailer websites for up to date information.

Here are some of the cheapest solar-specific deals from the retailers on our database. These costs are based on the Citipower network in Melbourne but prices will vary depending on your circumstances. We show one product per retailer, listed in order of lowest price first. Annual price estimates assume general energy usage of 4000kWh/year for a residential customer on a single rate tariff. Price estimates exclude solar feed-in tariff credits. These are products from referral partners†. Our database may not cover all deals in your area, and please check retailer websites for up to date information.

Here are some of the cheapest solar-specific deals from the retailers on our database. These costs are based on the Energex network in Brisbane but prices will vary depending on your circumstances. We show one product per retailer, listed in order of lowest price first. Annual price estimates assume general energy usage of 4600kWh/year for a residential customer on a single rate tariff. Price estimates exclude solar feed-in tariff credits. These are products from referral partners†. Our database may not cover all deals in your area, and please check retailer websites for up to date information.

Here are some of the cheapest solar-specific deals from the retailers on our database. These costs are based on SA Power network in Adelaide but prices will vary depending on your circumstances. We show one product per retailer, listed in order of lowest price first. Annual price estimates assume general energy usage of 4000kWh/year for a residential customer on a single rate tariff. Price estimates exclude solar feed-in tariff credits. These are products from referral partners†. Our database may not cover all deals in your area, and please check retailer websites for up to date information.

Should I get my solar panels serviced?

Yes. If you’ve had your solar panels for over five years or you notice that something is not quite right, it’s best to have a professional check your system. Servicing your solar panel system means you’ll get better value out of your panels, as they’ll be operating properly, and you’ll be maintaining safety standards. Getting a service is a great way to ensure everything is running as it should be.

If you don’t yet have solar panels but are interested in getting them, check out our guide to solar installations. In this guide we cover how solar power works in Australia, money saving opportunities, costs and more.

Learn more about solar power systems

Image credits: YimJi WK/Shutterstock.com, anatoliy_gelb/Shutterstock.com, ME Image/Shutterstock.com

Kelseigh Wrigley
Former Energy Specialist
Kelseigh Wrigley was a content producer at Canstar Blue for three years until 2024, most recently as an Energy Specialist. She holds a Bachelor of Journalism at the Queensland University of Technology and has contributed her skills to online publications Hunter & Bligh and local radio station 4ZZZ.

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