What dirties solar panels in Tampa
Bay salt aerosol
Anything within a mile of Hillsborough Bay or Old Tampa Bay picks up a salt film that hardens into a haze the first time it bakes in the sun. Rain does not rinse it — it just redeposits it.
Oak canopy and tannin
Hyde Park, Beach Park and Seminole Heights sit under mature live oaks. Catkin drop in March and leaf drop in December leave organic staining that etches if it is left to sit through a wet summer.
Interstate and airport grit
Homes along I-275, I-4, the Selmon and the TPA approach paths accumulate a fine grey carbon film that dulls output without ever looking obviously dirty from the ground.
Saharan dust
June through August, Saharan Air Layer events push fine mineral dust across the whole bay. It is the single biggest one-week soiling event most Tampa arrays see all year.