At least every 6 months, but some areas with lots of dust or trees may need quarterly cleaning.

No. Rain only rinses some dirt, but it also leaves mineral deposits and streaks. Professional cleaning ensures a clear surface.

Yes – studies show dirt build-up can drop efficiency between 10–25%, depending on conditions.

It’s risky. Working at heights and using the wrong water or tools can damage panels. It’s safer to use trained professionals.

We use pure deionized water and specialized solar cleaning brushes – no harsh soaps or chemicals.

No – as long as the correct methods are used. In fact, some manufacturers recommend regular cleaning to keep the warranty valid.

A standard residential system (about 12–20 panels) usually takes 1–2 hours. Larger systems may take longer.

Yes – long-term dirt and bird droppings can cause “hot spots” which damage cells and reduce lifespan.

Yes, dirt prevents proper light absorption, causing uneven heating and reducing panel performance.

Yes – cloudy weather is actually ideal since panels stay cool, and rain does not interfere with our purified water system.

Tap water leaves mineral deposits and streaks. We use RO + DI purified water for a spotless, residue-free finish.

Yes – cleaner panels generate more power, which reduces electricity bills or increases grid feed-in.

Yes – for safety, the inverter should be switched off while cleaning is done

A simple way is to check your electricity production. If you notice your system producing less power than usual on sunny days, dirt or dust buildup might be the cause. In Gauteng, where dust, bird droppings, and pollution are common, a visible layer on the panels is also a clear sign they need cleaning.