Every Detail Solar cleans commercial solar arrays across California, where two very different soiling drivers - wildfire ash and Central Valley agricultural dust - push soiling losses well above the national average. California has more commercial solar than any other state and some of the harshest soiling conditions, which is exactly why a measured, site-specific cleaning program matters more here than almost anywhere.
California's two soiling stories
Most states have one dominant soiling driver. California has two, and they behave differently:
- Wildfire ash. Fire season deposits fine, sticky ash across huge areas - not just near the burn. Ash bonds to glass and resists rain, so it suppresses output until washed. An ash-fall wash is often a California array's single highest-return service of the year.
- Central Valley agricultural dust. Tillage, harvest, orchard pollen, and a months-long dry summer create relentless accumulation with no natural rinse. Ground-mount and rooftop arrays near farmland soil fast and stay soiled.
The U.S. National Renewable Energy Laboratory (NREL) puts average U.S. soiling loss around 3 to 5 percent annually; in the dry, dusty, fire-exposed parts of California, the real figure runs higher.
How we clean in California
We match the method to the mount and the mess. Ground-mount arrays near agriculture get wash-plus-vegetation scoping so dust and overgrowth don't compound. Rooftop arrays in fire-exposed zones get event-driven ash washes. Utility-scale farms get robotic-plus-manual programs sized to acreage. All scoped with a custom estimate for your site.