Ground Mount Solar Cleaning Best Practices
Ground mount arrays have unique cleaning challenges, and unique soiling rates. Best practices from a San Diego County cleaning crew.
Ground mount arrays, residential or commercial, collect particulate at rates rooftop systems never see. Here's how we approach ground mount cleaning safely and effectively.
Why ground mounts are harder than rooftop
Ground mounts sit near dirt, gravel, agricultural runoff, and sprinklers. They're often at angles that don't shed dust well. And they're easier to damage with the wrong technique because the back-side wiring is often more accessible.
Pure water, soft brushes, no shortcuts
Cleaning instructions and warranty terms vary by panel model. Check your module's manual before choosing water quality, products, brushes, or pressure. We use deionized water and solar-specific brushes without soaps or harsh abrasives. Warranty decisions belong to the manufacturer, not the cleaning company.
How often to clean a ground mount
Quarterly for ground mounts near dirt, gravel, or active sprinklers. Biannual for ground mounts in clean environments.