Solar Panel Cleaning Melbourne — Testar Grove, Caulfield North

A layer of grime had built up across the array, with patches of moss starting to establish on the panel surfaces. Grime alone cuts output gradually enough that it is easy to miss. Moss is where it stops being gradual: it holds water against the glass, spreads in under the frame edge and shades cells outright. Caught while the patches are small, it lifts off without touching the coating.

A two-person crew worked the job, one technician on the roof and the second assisting from the ground. On a double-storey house that second pair of hands keeps the ladder stable and the gear moving without extra trips over the tiles. The panels were washed by hand rather than pressure-cleaned, because pressure forces water past the panel seals and into the junction box. Care was taken crossing the terracotta tiles, which crack under point loads.

• Access the roof of a double-storey house over terracotta tile
• Remove grime and moss patches from the solar panels
• Hand wash the full array

• Panels cleared of grime and moss
• Completed in two hours with no damage to the tiles