Queensland solar panels can lose 15 to 30% of their energy output when soiled. At current electricity prices, that's real money. Professional cleaning with purified water restores full efficiency.
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Queensland has one of the highest rates of solar panel ownership in Australia — and most solar panel owners don't realise that the efficiency of their system is directly affected by how clean the panels are. Research from the solar industry consistently shows that soiled panels can lose between 15 and 30% of their energy output depending on the type and level of contamination. In Queensland's climate — dust, pollen, bird droppings and biological growth — panels can develop significant soiling within 6 to 12 months of installation or the last clean. At current electricity prices and solar feed-in rates, this lost efficiency has genuine dollar value that can easily exceed the cost of professional cleaning within a year.
The main soiling types on Queensland solar panels are: dust and particulate matter (general background soiling from wind-borne dust and pollen); bird droppings (cause disproportionate efficiency loss — a small concentrated deposit can affect an entire cell string); biological growth including algae and lichen on panel frames and edges; storm deposits (leaf matter, grime washed from the roof surface during heavy rain); and water mineral deposits (from hard tap water or bore water if used for cleaning).
Bird droppings create a concentrated dark deposit that blocks light to the cell directly beneath — but due to how solar cells are wired in series, this can reduce output from the entire cell string that the affected cell is part of. A single significant bird dropping can reduce a string's output by 30 to 40%. If you have persistent bird activity on your roof, more frequent panel cleaning is warranted.
Solar panel cleaning requires: purified or deionised water to prevent mineral deposits as the water evaporates; soft brush heads that don't scratch the anti-reflective coating on panel glass; and trained operators who understand panel electrical components and edge seals. Using tap water, abrasive materials or household cleaners can permanently reduce efficiency or damage panels. Professional cleaning is specifically safe for all panel types.
Our Roof Clean package includes free solar panel cleaning for up to 20 panels. When we're already on your roof with access already set up, adding the panel clean is a natural and cost-effective inclusion. Most homeowners with solar get the most value from combining roof and panel cleaning in a single visit.
Research indicates between 15 and 30% efficiency loss depending on soiling level. In Queensland's environment — dust, bird activity and biological growth — panels can lose significant efficiency within 6 to 12 months.
Most manufacturers recommend every 6 to 12 months. Annual cleaning at minimum for Queensland conditions; more frequently for properties with high bird activity or in dusty locations.
Possible but not recommended — working at height without appropriate safety equipment is dangerous, and incorrect cleaning materials can permanently scratch panel glass or leave mineral deposits. Professional cleaning is safer and ensures correct method.
Yes — our Roof Clean package includes free solar panel cleaning for up to 20 panels as standard. No extra charge.
Serving Redlands and all of South East Queensland. We reply within 2 hours, Mon–Sat.
0412 291 614