Case studies

Homeowner Cindy Roe

Homeowner Cindy Roe

Up to 30%

Increased production


Solar panels cleaned

"We have had RST on our solar panels for over a year now. Our roof is steep, and previous cleaners were tearing up the shingles. The cleaners also made me nervous with unnecessary risks – I don't want anyone to get injured at my house. And because of the steep roof, our neighbors can easily see our panels. I love that my panels are always a clean black, especially since we are next to the freeway. The neighbors ask how I keep them so clean! Best of all, our true-up bill has basically been eliminated due to RST. I would highly recommend RST."

Cindy Roe of Santa Ana, California used RST to increase the production of her solar panels and avoid potential issues of workers on her roof.


  • Avoided liability of people getting hurt and injured on steep roof.
  • Showed off clean panels – and showed neighbors how to maintain solar panels.

For more information, download

the case study here.

Why RST CleanTech?

RST CleanTech was established in 2013 and quickly became a global leader in automated solar panel cleaning. Since our inception, we have installed 4,000+ projects worldwide ranging in size from residential arrays to large-scale utility projects. Today our patented systems clean more than 2,000,000 panels each day.

We knew there had to be a way to achieve our goals that didn’t entail deploying thousands of bristle-wielding workers onto high voltage rooftops across the world. When we realized there wasn’t, we created one. Enter, RST NightWash™.

RST NightWash™ is a fully automated solar panel cleaning system with no moving parts that you can control from your phone. Clean whenever you want and keep your panels clean all the time.


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