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We continue this week with the basics on solar panel maintenance to assist your sales of Polywater Solar Panel Wash. Let's start with how often panels should be cleaned. According to industry experts, "the best time to clean panels is after a rainfall," and then at least quarterly for most systems. Panels with steeper slopes require less maintenance because dirt and debris are less likely to collect--but all panels require regular maintenance. Rain and snow melt are not cleaners; they leave deposits. Throughout the winter months larger particles of dirt and debris may be washed from panels by rain or melting snow, only to accumulate on frame edges. It's important to clean after a rain and in the spring because this build-up eventually covers part of the solar cells, causing a shading effect. Any loss of solar efficiency increases a system's capital investment pay-back time, possibly by years. Tap water, whether from the city or a well, should be avoided as it can damage panels. Unfiltered water--including rain and snow--contains minerals that leave sun-blocking spots and may permanently etch panel glass. Inconsistent pH levels can corrode aluminum frames and mounts. Repairing water-damaged panels and frames is difficult and expensive. Pressure washers must be used carefully, if at all. Excessive water pressure can breach glass/panel seals. Never use harsh chemicals, as they can break down rubber gasket seals. Avoid soaps as well; they do not rinse clean, and may also be incompatible with gaskets. Use only soft brushes and avoid anything that might scratch the glass. Scratches cause shading and potential cracking. |
