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?

Over 10 years ago, we set out to solve one of the biggest problems facing solar – panel soiling. We wanted to find a way to keep panels clean, maximize energy production, protect panel warranties, and increase revenue for system owners.

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

RST NightWash™ is a safe, cost-effective, and eco-friendly automated solar panel cleaning solution.


Request a quote.