Solar Panel Cleaning

Solar Panel Cleaning

Solar Panel Cleaning: When, Why and How

Solar Panel Cleaning

The main reason for cleaning solar panels is to maintain their efficiency. According to research, the reduction in power output of a dirty panel in the American region ranges between 1.4% to 8% annually.

People usually leave it up to the rain to do most of the cleaning, which is reasonable. But occasional solar panel cleaning should be done to keep them running at peak efficiency and to reduce the risk of cell circuitry failure due to dust.

Solar panel cleaning should be a regular part of solar system maintenance, along with electrical testing, mechanical inspection, vegetation mitigation, thermal imaging, etc.

When is Solar Panel Cleaning Required?

One size does not fit all. Instead of cleaning the solar panel a certain number of times in a year, let the condition of the solar panel dictate the cleaning frequency.

Rainwater attracts dust that forms a layer of grime. The grime build-up will vary depending on the amount of rainfall and dust in your area. The last cells in the array accumulate most of the debris and grime because of the runoff.

Arizona, California, and Nevada receive ample rainfall. Once the rainy season is over, be sure to check whether the solar panels need to be cleaned.

Dead leaves, debris, dust, and runoff water can collect over time and create unwanted shade. The shade reduces the amount of sunlight hitting the PV cells, reducing their efficiency.

Also, bird droppings can collectively cover a large enough area to reduce a panel’s power output. Thus, bird droppings should be cleaned off periodically with gentle scrubbing.

How are Solar Panels Cleaned?

Solar panels should be cleaned with deionized water, as tap and distilled water can attract dust build-up. Also, solar cells should be scrubbed gently with a sponge or soft cloth.

Phoenix Renewable Services' cleaning technique complies with the manufacturer's specifications to uphold the warranty and increase the longevity of your solar panels. We take care to prevent calcium build-up, spotting, and shading while avoiding micro-cracks.

If you see a noticeable dip in performance even after cleaning, solar system monitoring can pinpoint the issue for you.

Solar Panel Cleaning California

Things to Avoid When Cleaning Solar Panels

Solar panels are approximately 0.20mm thick, and susceptible to cracks and scratches.

When cleaning solar panels, DO NOT:

  • Use high-pressure sprays
  • Step on the solar panel
  • Use abrasives
  • Use detergent or harsh chemicals
  • Press down hard when using a squeegee (you risk scratching the solar panel with debris caught in the squeegee)
  • Use hard materials to scrape off caked-on grime and bird droppings
  • Remove snow with a snow rake (doing this can void the solar panel warranty)

Don’t worry if you damaged the solar panel. Our solar system repair services can effectively deal with such situations.

Contact us today for solar panel cleaning

We provide solar panel cleaning services in the industrial, municipal, commercial, public, and utility areas.

We ensure your solar panels remain spotless and keep operating at maximum efficiency.

Contact us today if you have a question or want to start a conversation.

 

Sources:

1.     https://www.sciencedirect.com/science/article/pii/S1364032116000745

*Links provided as reference at the time of this posting are the opinions of those resources at the time and date of this reference.