Solar Panel Cleaning in Murray Bridge & Adelaide Hills

Once a year works for most homes. Twice a year is better if you are on a rural block, near an unsealed road, under trees, or anywhere birds gather on the roof. Properties near cropping country often want a clean after harvest, because that is when the most dust goes up at once.

You can wash panels yourself, and plenty of people do. Two things are worth knowing before you climb up. Tap water leaves a mineral film as it dries, so panels often look worse a fortnight later than they did before. And most domestic solar is on a pitched roof, where a wet surface and a hose is how people get hurt. If you are going to do it yourself, do it from the ground with an extendable brush and never on a hot day, because cold water on hot glass can crack a panel.

It depends entirely on what is on the glass and how long it has been there. Even dust across the whole array costs less than people expect. Concentrated shading is the real problem: bird droppings or lichen on one cell can pull down the output of every panel wired in that string. The honest answer is that we measure your system before and after so you see your own numbers rather than an industry average.

Yes. Larger arrays on sheds, dairies and farm buildings are some of the dirtiest systems in the region, and they are usually the ones where lost output costs the most, because the system was sized to cover a real load.