The structure of solar panels requires minimal maintenance, washing, and repairs. However, keeping solar panels dust-free and clean is crucial for optimal performance and output. Dust accumulation can reduce the efficiency of solar panels by up to 6.5% and even up to 40% in some cases, especially in regions like the Middle East. Regular washing of solar panels is essential for generating optimal power.

Maintenance and Cleaning of Solar Panels

To ensure long-term benefits and savings from owning solar panels, it’s essential to maintain and clean them. Investing in high-quality solar panels reduces the need for frequent upkeep and washing. Selecting a reliable installer and conducting routine inspections can help ensure the efficiency of your solar panels.

Why Are Solar Panels in Need of Washing and Cleaning?

Solar panels convert sunlight into usable energy by absorbing solar radiation. If dirt or debris obstructs the photovoltaic cells on the panels, their efficiency can be significantly reduced. Research from the National Renewable Energy Laboratory shows that dust and other particulates can decrease solar panel efficiency by 7%. Fortunately, keeping solar panels clean is a relatively simple solution to maintaining optimal performance.

How to Clean Solar Panels?

There are various methods for cleaning solar panels, ranging from manual cleaning to automated systems. While rainwater can help remove some dirt, it may not be sufficient for removing heavy pollution. Cleaning solutions like deionized water with a brush or sponge, hydrogen peroxide and vinegar, or a mild soap solution can effectively clean solar panels.

Instructions For Washing Solar Panels:

1. Assemble Your Equipment and Supplies

Ensure you have easy access to all necessary equipment for cleaning the solar panels.

2. Apply a Mist to the Roof and Panels

Rinse the solar panels and surrounding roof with a garden hose to remove loose dirt and debris.

3. Switch off the Solar Panel System

Turn off the solar panel system before beginning the cleaning process for safety.

4. Use the Cleaning Agent

Apply a cleaning solution to the solar panels and let it sit for a few minutes before gently scrubbing the panels.

5. Remove the Dirt

Clean the area where the cleaning solution was applied using a brush or sponge, avoiding harsh abrasives.

6. Carry Out Cleaning in Small Segments

Proceed to clean each solar panel methodically, scrubbing as needed.

7. Finish Cleaning the Solar Panels

Rinse the panels with a hose, dry with a squeegee, and switch the solar panel system back on.

Advice for Solar Panel Maintenance

  • Keep solar panels free of shade to maximize sunlight absorption.
  • Observe the panel’s performance daily and monitor energy production for consistent tracking.
  • Consider automated cleaners or hiring cleaning services for convenience.

Guidelines for Cleaning Solar Panels

  • Use biodegradable soap and gentle tools for cleaning to avoid scratching the panels.
  • Regular cleaning helps maintain efficiency and longevity of solar panels.
  • Be cautious when cleaning on rooftops to avoid accidents or injuries.
  • Consider replacing old or inefficient solar panels with newer models for better performance.