What is solar panel wash (SPW)?

In recent years, companies have come up with innovative solutions that go beyond conventional waterless cleaning systems. In 2018, the American Polywater Corporation released a product known as Solar Panel Wash (SPW), which is a cleaning solution that forms a thin continuous layer of water on the solar panels.

What is solar panel cleaning?

First and foremost, let us introduce the two different terms discussed in this article: Solar panel cleaning: this entails washing the panels like windows. The cleaning may be combined with preventive maintenance of the solar collectors.

Can a waterless cleaning method remove dust from solar panels?

Dust that accumulates on solar panels is a major problem, but washing the panels uses huge amounts of water. MIT engineers have now developed a waterless cleaning method to remove dust on solar installations in water-limited regions, improving overall efficiency. Image courtesy of the researchers.

How much water does a solar panel use?

The SPW solution uses just 230 ml of water for each panel. In comparison, in the conventional wet cleaning and active brush cleaning methods, at least 2 litres of water would be used for each solar panel.

How to clean solar panels?

Step 2: Choose the best approach: If your solar panels are on the roof, consider using a telescopic window cleaning pole to clean them from the ground instead of using a ladder. Step 3: Mix your cleaning solution: In a bucket of warm water, mix a small amount of mild detergent or use a specialised pre-mixed solution.

Can a solar panel take water from a pressure washer?

Solar panels are not designed to take the impact of a high pressure stream of water from a pressure washer. Furthermore, a grid-connected solar panel array with solar batteries is a high voltage electrical system which is potentially dangerous if it is damaged. Doing this will therefore almost certainly invalidate the warranty.