When should you perform solar panel maintenance?


Solar panels can last around 30 years with minimal maintenance, making them a solid long-term investment with low ongoing costs.

To maximise their lifespan, there are a few steps you should take, such as regular servicing, cleaning, and removing any potential hazards.

This article will guide you through essential solar maintenance tips, including costs, how to check for issues, and keeping records of any maintenance work.

If you're considering getting connected to a new solar plan, we can assist. All you have to do is call 1300 790 106.

Do solar panels really need maintenance?

Solar panels need some care over time, just like any other system. Since they have no moving parts, they’re generally low maintenance. However, to minimise costs and keep them running efficiently, you should take steps to maintain them properly.

Regular upkeep is key to ensuring your panels work at their best. Things like dust, leaves, animal droppings, and other debris can build up on the panels and lower their efficiency. Water can also cause issues if it seeps into the internal system.

It’s a good idea to ask your installer for tips on what to look out for and how often you should check your panels and system. Solar panels should be serviced every five years, but it's a good idea to follow your manufacturer's recommendations. If you notice anything unusual with your solar panels, it's wise to have a professional check them out.

Here are some signs that you might need an extra inspection:

  • a noticeable drop in your system's energy production
  • an alert from your monitoring software or inverter
  • a large amount of debris on the panels
  • signs that animals, like possums or birds, might be damaging the system

What maintenance is needed?

Solar panel maintenance involves having a professional check that everything is working properly. During this service, they'll make sure the panels are clean, secure, and free of defects. They’ll also check for any signs of wear or water damage and perform electrical tests to ensure everything is functioning as it should.

While the technician usually clears away major debris, a more thorough cleaning might cost extra. If there are any issues like faulty parts, they can be fixed during the visit.

For angled panels, regular cleaning isn't typically needed unless you live in a dry, polluted area or have issues with animals or tall vegetation. Rain usually keeps panels clean. If you're worried, you can have them professionally cleaned or do it yourself.

Just remember, it's risky to climb on the roof without proper safety gear. If you choose to clean the panels yourself, turn off the system first and follow the manufacturer's instructions.

What if I don’t maintain my solar panels properly?

If not properly maintained, solar panels can lose efficiency and, in rare cases, may even pose a fire risk. Although fires are uncommon with proper installation, it's still important to have a professional check your system to ensure everything is working as it should.

Regular maintenance helps you get the most out of your solar panels, maximising energy production and saving you money on your energy bills.

The solar panel maintenance checklist

It's best to have a licensed electrician or a Clean Energy Council-accredited installer handle the service, whether it's the original company or an independent one. Before booking, get quotes from a few trusted businesses to compare so that you know you are getting the right service.

In the meantime, here is our solar panel maintenance checklist:

Have your panels checked

It's a good idea to have a professional inspect your system every 5-10 years. This helps you avoid unexpected costs and ensures your panels are producing enough energy to keep your bills down.

Look for problems

Using binoculars from the ground, check your solar panels for dirt or loose bolts on the mounting system. Aim to do this twice a year.

If you see a sudden drop in your panels' energy output, it could mean there's an issue that needs attention.

Clean your solar panels

Your solar panels usually need cleaning every five years unless they get especially dirty. If you live near the coast, you might need to clean them more often due to salt buildup from the sea air.

The best way to clean your panels is by using a hose from the ground. Avoid using detergent or high-pressure water, as these can void your warranty.

In summer, remove dust or pollen from your panels, and in winter, keep an eye out for snow or debris.

Remove potential hazards

Trim back any branches that hang over your solar panels to prevent them from falling and causing damage. Also, keep animals like squirrels and pigeons away from your panels. This is easily done by installing mesh nets.

Keep solar panels in the sun

Shade can reduce how much energy your panels produce. Make sure trees are trimmed back and keep vines or ivy away from your panels to ensure they get plenty of sunlight.

Check your inverter lights

Green lights on your inverters mean everything is working fine. If the lights aren’t green, there might be a problem that could lead to costly repairs.

Remember, inverters usually need to be replaced every 10 years, even though solar panels last longer.

Monitor your panels daily

Keep an eye on the daily energy output of your panels. Checking it at the same time each day will help you spot any issues early.

Keep a maintenance log

Track all maintenance, cleaning, and repairs done on your panels. This record will help technicians diagnose any future issues more easily.

Top tips for solar panel care

  • If climbing on your roof to clean panels isn’t feasible, consider installing automatic cleaners similar to sprinkler systems. Alternatively, hire a professional for regular cleaning.
  • Avoid installing solar panels yourself. A certified installer will ensure proper setup and prevent potential issues.
  • Placement matters. Solar panels perform best in open, sunny areas. Keep them free from shade and overhanging branches, and ensure they’re angled so rain and debris can easily wash off.
  • Think about the future. While repairs can be expensive, investing in quality components, like a new inverter, can save you money over time compared to frequent fixes.

Do I need to service my solar panels?

Yes, you should. If your solar panels are over five years old or if you spot any issues, it’s a good idea to have a professional inspect them.

Regular servicing helps ensure your panels work efficiently and safely, giving you the best return on your investment. It's a smart way to keep your system in top shape.

Looking to get signed up to a solar plan?

Contact the team at Compare Energy today on 1300 790 106 and we can talk you through solar providers that make sense for your budget.