Solar panels work best when their glass is free from dust, bird mess, salt and leaf residue. A film of grime does not always look dramatic, but it can reduce the light reaching the cells.
The safest approach uses soft brushes and purified water rather than abrasive pads or high pressure. Cleaning also gives an operator a chance to notice trapped debris around panel edges and accessible frame concerns.
Cleaning frequency depends on trees, birds, road dust and coastal exposure. Many Brisbane homes suit an annual clean, while heavily shaded or coastal properties may benefit from more frequent checks.

