DIY Solar Panel Cleaning: Dos and Don’ts

diy solar panel cleaning dos and donts

Solar panels are a fantastic investment for environmentally conscious homeowners looking to harness clean energy from the sun. However, to ensure they operate at their peak efficiency, regular cleaning is essential.

This quick guide will walk you through the dos and don’ts of DIY solar panel cleaning, ensuring you keep your panels in top-notch condition.

With a little knowledge and some basic tools, you can maintain your solar panels safely and effectively, maximising their energy production and lifespan.

1. Safety First

When it comes to cleaning your solar panels, safety should always be your top priority. Here are some important dos and don’ts to keep in mind:


  • Turn off the power: Before starting the cleaning process, turn off the solar panel system to avoid any electrical accidents.
  • Choose the right time: Plan your cleaning on a cloudy or cooler day to prevent the water from evaporating quickly, leaving streaks on the panels.
  • Wear appropriate gear: Use non-slip shoes and safety goggles to protect yourself from slipping and any debris that might fall while cleaning.


  • Use abrasive materials: Avoid using abrasive scrubbers or harsh chemicals, as they can damage the solar panel surface and reduce their efficiency.
  • Climb on the panels: Never step on the solar panels or put excessive weight on them, as it can cause cracks or breakages.
  • Ignore the warranty: Cleaning your solar panels incorrectly can void your warranty. Always follow the manufacturer’s guidelines to maintain warranty coverage.

2. Gathering the Right Tools

To clean your solar panels effectively, you’ll need the right tools and equipment. Here’s what you should have in your toolkit:


  • Soft brushes or sponges: Opt for non-abrasive brushes or sponges to gently remove dirt and debris without scratching the glass.
  • Bucket of soapy water: Mix a mild detergent with water to create a cleaning solution that won’t harm the panels.
  • Extendable pole: Invest in a telescoping pole with a soft brush attachment to reach high panels safely.


  • Pressure washers: Avoid using pressure washers, as the high-pressure water stream can damage the solar panels and their components.
  • Sharp tools: Never use sharp objects or abrasive cleaning materials, as they can scratch the panel’s surface.
  • Ammonia-based cleaners: Refrain from using cleaners that contain ammonia, bleach, or other harsh chemicals, as they can cause permanent damage.

3. Cleaning Process

Now that you have the right tools, let’s go through the step-by-step cleaning process:


  • Start from the top: Begin cleaning from the top of the solar panels and work your way down to ensure thorough cleaning without streaks.
  • Gentle scrubbing: Use the soft brush or sponge to gently scrub the surface with the soapy water solution.
  • Rinse thoroughly: Rinse the panels with clean water, removing all soap residues.


  • Use excessive force: Avoid applying excessive pressure while scrubbing, as it can cause scratches or damage to the glass.
  • Use hard water: Hard water can leave mineral deposits on the panels. Ensure you use clean, soft water for rinsing.
  • Clean when they’re hot: Don’t clean your solar panels during peak sun hours when they’re hot, as rapid temperature changes can cause cracks.

4. Regular Maintenance

Keeping your solar panels clean is an ongoing process, and regular maintenance is crucial for optimal performance:


  • Schedule regular checks: Inspect your solar panels periodically for dirt, leaves, or bird droppings, and clean them as needed.
  • Monitor energy production: Keep an eye on your solar system’s energy output to detect any significant drops that might signal the need for cleaning.
  • Maintain the surrounding area: Trim overhanging branches and remove any debris that could accumulate on the panels.


  • Neglect cleaning: Ignoring regular cleaning can lead to a substantial decrease in energy production and efficiency over time.
  • Wait for extreme dirt: Don’t wait until your panels are excessively dirty to clean them. Regular maintenance prevents stubborn build-up.
  • Skip safety precautions: Always adhere to safety guidelines to prevent accidents and damage to your solar panels.

Maximising Solar Panel Efficiency

DIY solar panel cleaning is a straightforward task when done correctly, and it plays a crucial role in maintaining your solar system’s efficiency.

By following these dos and don’ts, you can ensure your solar panels continue to generate clean and sustainable energy for years to come.

Remember to prioritise safety, use the right tools, and maintain a regular cleaning schedule to reap the full benefits of your solar investment.

Additionally, those who prefer a hassle-free approach, consider employing the services of professional solar panel cleaner companies. These experts have the knowledge and equipment to clean your solar panels efficiently.

So, roll up your sleeves, grab your cleaning gear, and let the sunshine power your home efficiently!

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