How to Maintain and Clean Your Solar Panels in Ireland

Concept of How to Maintain and Clean Your Solar Panels in Ireland

Keeping solar panels clean in Ireland is not about aesthetics; it’s about maintaining their peak efficiency.

With the right tools, like a soft brush and biodegradable soap, removing accumulated grime becomes an easy task.

Timing, too, plays a critical role, as you would want to avoid water spots on your freshly cleaned panels. And yes, even self-cleaning panels could do with some manual help occasionally.

How Often Should You Clean Solar Panels?

Man cleaning solar panels of his house with a mob and hose

We recommend you clean solar panels at least once every six months. It can help maintain their efficiency.

Consider these factors:

  • Dust and Dirt: If your solar panel’s installation happens in a location with high dust or dirt, it may require more frequent cleaning.
  • Precipitation: If you live in an area with regular rainfall, it can naturally clean your solar panels, and you might not need to clean them as frequently.
  • Bird Droppings: Bird droppings can significantly reduce the efficiency of solar panels. If your panels are in a location where birds often perch or fly over, you should clean them more regularly.
  • Leaves and Debris: If your panels are near trees, leaves and other debris could accumulate and block sunlight; thus, they might require more frequent cleaning.
  • Panel Tilt: Panels installed at a steeper angle are more likely to be self-cleaning when it rains.

Tools and Materials Needed to Clean Solar Panels?

  1. Soft Brush or Broom: This helps to gently remove dust, leaves, or other loose debris from the surface of the panels. It’s essential to ensure the brush is soft to prevent scratching the solar panel system surface.
  2. Squeegee With a Long Handle: A squeegee helps remove water and cleaning solutions from the panels after washing, helping to prevent water spots and streaking.
  3. Bucket: You’ll need a bucket to mix your cleaning solution and water.
  4. Mild Detergent: This helps as the cleaning solution. Choosing a mild soap that won’t harm the solar panels is crucial.
  5. Hose With a Spray Nozzle: This will help to rinse the panels after you’ve washed them. It’s better to use a hose that has a suitable spray nozzle to control the water pressure and avoid damaging the panels.
  6. Ladder: Depending on the location and height of the panels, you may need a ladder to reach them. Ensure it is safe and secure before climbing up to avoid accidents.
  7. Safety Equipment: Depending on the positioning of your panels and height from the ground, safety equipment like a harness, safety glasses, and gloves may be necessary.

What to Consider Before Solar Panel Cleaning

If you’ve installed solar panels in Dublin, here are some local considerations for cleaning and maintaining them effectively.

Safety should be at the forefront of your mind; solar panels are often located on rooftops (roof-mounted panels), which means there’s a risk of working at heights.

Now, if you’re perfectly comfortable with that and have the proper safety equipment, great! But if you need help or the panels need to be easier to reach, calling professional service might be a good idea.

Next, you need to consider what the manufacturer says about regular cleaning. Every panel can be different, and the manufacturers usually provide some guidance.

They’ll tell you what’s best for their product, and let’s be honest, they made the panels, so they ought to know the best to clean solar panels efficiently. Plus, follow their advice to avoid accidentally voiding your solar panel maintenance warranty, and we don’t want that, do we?

Then, there’s the timing. Even in Ireland, most solar panels can get hot during the day. It’s best to tackle the cleaning early or late in the day when they’re cooler. It makes for a more pleasant cleaning experience and helps prevent water spots caused by rapid evaporation.

One more thing to remember: solar panels are constantly at work, turning light into electricity. So, remember they could be generating power even while you’re cleaning them. It’s wise to shut down the system before you start to be safe and maintain good panel efficiency.

And, of course, you’ll need the right tools for the job. And the ones mentioned earlier will do a perfect job!

Step-By-Step Guide on Cleaning Solar Panels

Guide on cleaning solar panel

Step 1 – Safety First

Ensure you have all the necessary safety equipment if your solar panels are on a roof or other high places. It might include a stable ladder, non-slip shoes, a safety harness, and gloves.

Step 2 – Prepare Your Cleaning Equipment

Get your cleaning equipment ready. Typically, this will include a bucket filled with warm water and mild detergent, a soft brush or sponge, a squeegee with a long handle, and a hose with a suitable spray nozzle for rinsing.

Step 3 – Turn Off the Solar Panels

Turn off the solar panels before cleaning. Solar panels produce electricity when exposed to light, so they might still be alive during cleaning.

Step 4 – Brush Off Loose Debris

Using a soft brush, gently brush off any loose debris like leaves or dust from the surface of the solar panels, and be mindful of the panel glass.

Step 5 – Apply Soapy Water

Dip your soft brush or sponge in the soapy water and gently scrub the surface of the solar panels. Be gentle to avoid scratching the panels.

Step 6 – Rinse with Clean Water

Use a hose to rinse the panels. Start from the top and work your way down, washing off all the soap to prevent any residue from drying on the panels.

Step 7 – Dry the Panels

Use a squeegee to remove the excess water from the panels. Alternatively, you can let them air dry if the water in your area isn’t hard and won’t leave water spots.

Step 8 – Reactivate the System

Once you finish cleaning and the panels are dry, turn the solar system back on.

When Is the Best Time to Ask For Help From Solar Cleaning Experts?

Group of professionals cleaning solar panels on the roof

When to call solar cleaning experts for your solar modules depends on various factors. Safety should always be your primary concern. If your solar panel installation happens in a place that’s hard to reach safely, such as a high or steep roof, it’s time to get professionals involved. Expert cleaners have the necessary training and equipment to clean panels without risking anyone’s safety.

Another key indicator is the efficiency of your solar panels. When you start noticing a significant drop in your solar systems’ energy production, this could be a sign that you require professional cleaning.

Drops in efficiency can often be because of a build-up of dirt, dust, or other forms of debris. A thorough professional cleaning can help restore your panels to their optimal performance. If your energy output isn’t what it used to be, it might be time to call the experts.

How Location Affects Solar Panel Cleaning in Ireland

Deciding to install solar panels in Ireland is an excellent step towards sustainable energy, but it also comes with specific responsibilities. One of these responsibilities includes maintaining the cleanliness of your panels, which the location of your installation can influence.

For example, if you install solar panels near the coast, you might clean them more frequently. It is due to the salty sea air prevalent in these areas, which can deposit salt on your panels and potentially interfere with their performance. Additionally, if your installation location attracts high bird traffic, the bird droppings could necessitate more frequent cleanings to maintain optimal efficiency.

However, Ireland’s climate might give you a helping hand sometimes. The country’s frequent rainfall can be a natural cleaner for your solar panels, washing away loose dust or dirt. Despite this advantage, please rely on something other than the rain, as it might not be enough to clean more stubborn grime that accumulates over time.

In urban settings where you might install solar panels, air pollution could add an extra layer to your cleaning considerations. Particles from air pollution can settle on your panels over time, potentially reducing their efficiency and demanding more regular cleaning than panels in rural locations.

The placement of your solar panels on your property can also affect cleaning needs. For instance, panels installed under trees may collect leaves and other debris, necessitating more frequent cleaning. Conversely, panels installed at a steeper angle could benefit from self-cleaning during rainfall, compared to panels installed at less vertical angles.

How to Gauge When It’s Time to Clean Solar Panels

If you visibly notice dust, debris, or bird droppings covering your panels, it’s likely time for cleaning.

Monitor your power output as well; a noticeable drop could indicate the need for cleaning, barring other factors like seasonal changes. Lastly, consider the time that has passed since your last cleaning.

If it’s been six months or more, scheduling a cleaning is recommended. Always remember if the task appears overwhelming or unsafe, professional services are available to help.


Maintaining and cleaning your solar panels in Ireland is crucial for efficiently keeping your green energy flowing. Regular cleaning can extend the lifespan of your panels and delay the need for solar panel recycling.

The frequency of your cleaning routine can depend on numerous factors such as location, environment, and weather patterns.

Regular visual inspections, monitoring of power output, and being mindful of the time since the last cleaning can all guide you on when to clean your panels.

And remember, there’s no harm in seeking professional help if the task feels too big or unsafe. So, embrace the responsibility that comes with solar power, and you’ll get an efficient and eco-friendly energy source for years to come.