It has been known according to research that solar panels become less effective by 30 percent when they accumulate more dust and dirt. With this regard, homeowners tend to climb up on their walls or roofs just to clean their solar panels to get back its effectiveness, which is obvious a very risky and dangerous step to do. This will never be a problem anymore as the researchers from Tel Aviv University have created the new nano-material that has the ability to repel dust and water. The moment this discovery became available in the market for purchase, this will serve as coating to solar panels and it eventually creates a self-washing solar panels and windows.
Source: Tel Aviv University via Inhabitat