Living in a sunny place like Perth means we’re lucky to have a climate that’s perfect for solar power, but while the sun might be doing its part, there’s something else that plays a major role in keeping your solar system performing at its best, and that is having clean panels. You’d be surprised how quickly dust, salt, bird droppings and even pollen can build up on solar panels, especially in warmer months or near coastal areas. And even a thin layer of grime can seriously impact how much energy your system is producing.
Solar panels are designed to soak up the sun, but when they’re dirty, their ability to do that drops significantly. Some estimates suggest you could be losing up to 20–25% of your system’s efficiency just because of dirt, and that kind of drop can definitely show up on your energy bills. If your solar panels aren’t regularly cleaned, you’re basically leaving money on the roof. Whether you’re relying on solar to cut down your power bills or simply to reduce your environmental footprint, keeping those panels clean should be a priority.
What Really Happens When Solar Panels Get Dirty?
It’s easy to assume that rain might be enough to keep your panels clean but unfortunately, that’s not the case. While a light shower might rinse off some surface dust, it won’t deal with the buildup of grime, sticky residue or bird droppings. Over time this buildup can cause “hot spots” where parts of the panel overheat and wear out faster. Not only does this reduce performance, but it can also shorten the lifespan of your system.
Dirt blocks sunlight, it’s as simple as that. And in Perth, where solar panels are exposed to everything from dry winds carrying fine dust to tree sap and seagull droppings, regular maintenance becomes even more important. It’s also worth noting that solar panel warranties often require proof of routine cleaning and inspections. So neglecting your panels could cost you twice, once in energy production and again if your warranty is voided due to lack of care.
Is Solar Panel Cleaning Really Worth the Cost?
It might seem like an unnecessary expense to pay someone to clean your panels, but the return on investment can be significant. Clean panels produce more power, and that means you rely less on the grid, and over time those savings can really add up. In many cases, homeowners notice a measurable drop in their electricity bills after just one professional clean, so consider it like a tune up for your solar system.
When everything is working properly you’ll get the most out of your setup, and in places like Perth, where sunshine is plentiful, it makes sense to take full advantage of it. Spending a little now to clean your panels could save hundreds (and possibly thousands) over the life of your system.
How Often Should You Clean Your Solar Panels?
It’s mostly recommend to professionally clean your solar panels at least once or twice a year. But depending on your environment, for example if you’re near the ocean, under lots of trees or in a particularly dusty are, you might need to do it more often. Early morning or late afternoon is the best time to clean, when panels are cool and easier to handle safely. And while it might seem like a DIY job, getting up on the roof can be risky and without the right tools or safety gear, you could end up doing more harm than good, to both yourself and the panels.
The Benefits Are Clear
When it comes to keeping your solar panels working efficiently, a little care goes a long way. Regular cleaning helps them last longer and perform the way they’re meant to. Considering the investment you’ve already made, it only makes sense to look after it properly.
Here’s a quick glance at why regular solar panel cleaning is worth it:
- Boosts energy output by up to 25%3
- Helps lower electricity bills
- Extends the lifespan of your solar system
- Maintains manufacturer warranty compliance
- Prevents long term damage and corrosion
- Improves overall return on your solar investment
We help homeowners across Perth keep their solar systems in top shape with professional, safe 100% chemical free solar panel cleaning using our pure water system. So whether it’s been 6 months or 6 years since your last clean, now’s a great time to give your panels the attention they deserve and make the most of every ray of sunshine.