How to clean solar panels
One of the great things about solar panels – beyond the greener energy and lower bills – is that they rarely need cleaning. This is down to a special coating which repels water and dirt.
But if your solar panels have become a bit dusty, or those pesky pigeons have been using them as a bathroom, this article is for you. We’re going to look at the best way to clean solar panels and get them sparkling again.
Should I clean my solar panels myself?
When it comes to cleaning solar panels, we know it might be tempting just to grab a sponge and give them a quick wipe. But there’s a risk you might be doing more harm than good. Cleaning your panels the wrong way could damage them or even void your warranty . And if you’re cleaning solar panels on a roof, then it’s not just the panels at risk – your safety is too.
At Hive, we’d always recommend leaving the heights and the dirty work to the professionals. It’s safer, more effective and usually only needed about every five years.
That said, if your panels are safely accessible and you’re set on doing it yourself, the tips below can help.
Tips for solar cleaning and maintenance
Solar panel cleaning
Generally, solar panels will need little cleaning. However, if you live in a particularly dry area or your panels are tilted at less than five degrees, dirt can build up over time. Here’s everything you need to know about how to clean solar panels and get them pristine again.
Safety tips
If there’s one thing we can all agree on about the weather, it’s that Mother Nature likes to keep us on our toes. But it’s best to plan a dry, cool day for any solar panel maintenance.
Before your start, make sure you turn off your solar panel system. To help keep safe, wear non-slip shoes, gloves and appropriate eye protection. And never stand or walk on the panels. They may look heavy-duty but the cells within them are fragile and could break.
Equipment tips
Cleaning solar panels with the wrong tools can damage the surface and lead to costly repairs. So it’s worth taking a gentle approach and definitely avoid any abrasive brushes, sponges or high-pressure jets.
Start by sweeping away any loose dirt with a good quality, soft brush. Then rinse the panels with a hose on a low pressure setting or use a telescopic lance to reach higher spots from the ground. If they’re still out of reach we’d strongly suggest hiring a professional.
For extra shine, you can also use a bio-degradable soap that’s easy on the environment. And that should be all you need to get your panels back to their best.
When to clean solar panels
Dry, cool mornings are the best time to clean your solar panels – a little bit of morning dew can help to soften any grime making it easier to clean off.
That said, cleaning isn’t typically needed, so only give them a wipe down if there’s visible dirt.
Solar panel maintenance
Here are few simple tips for solar panel maintenance, to help you get the most from your system for many years to come:
Keep solar panels clear of shade
Your installers will have chosen a spot that gets plenty of sunshine, but it’s worth checking every six months or so to make sure nearby trees haven’t grown over. Or if any new building work nearby has blocked the light.
Look for potential damage
It’s important to keep an eye out for hazards like low hanging branches or loose roof tiles that could damage your panels.
Service according to installer recommendations
This will help keep your solar panels running smoothly.
Track how your panels are performing
With the Live Energy Flow feature in the Hive app, it’s quick and easy to see how much electricity your panels are producing in real time. And how it’s being used around your home.
Solar panels are incredibly low maintenance. With Hive, they’re designed to last 25 years and could help cut your electricity costs.