Deionized Water
Deionized water is water that has had almost all of its mineral ions removed, such as calcium, magnesium, and sodium. This is typically achieved through a process called deionization, which involves passing the water through ion exchange resins that attract and remove the ions.
Deionized water is good for cleaning solar panels because it does not leave behind any mineral deposits or streaks. When regular tap water is used for cleaning, the minerals in the water can leave residues on the solar panels, which can reduce their efficiency over time. Deionized water, being free of minerals, helps to clean the panels effectively without leaving any residues behind.
In addition, deionized water is also non-conductive, which means it is safe to use on electrical components like solar panels without the risk of short-circuiting. This makes it a preferred choice for cleaning solar panels to maintain their performance and longevity.