Solar modules have no moving parts, so the main enemy of long-term generation in Gujarat is not failure — it is dust. In dry months, and especially near GIDC estates and highways, a layer of dust can reduce output by 15 to 25%.
The routine is simple. Rinse the modules with plain water early in the morning or after sunset, never at midday when the glass is hot. Use a soft brush or microfibre mop for stubborn deposits. Never use detergent, never use hard metal scrapers, and never walk on the modules.
Frequency depends on the site: every 15-20 days for most homes, weekly for factories near dust-generating processes, and after every dust storm or unseasonal rain that leaves mud spots.
Beyond cleaning, an annual professional check should cover inverter error logs, DC and AC connection torque, earthing resistance, module-level thermal imaging for hotspots, and structure bolt tightness. These five checks catch almost every issue before it becomes a generation loss.
Track your monthly generation against the estimate we provide at commissioning. A sustained drop of more than 10% that cleaning does not fix is a service call, and our team covers Vadodara, Surat and Banaskantha for exactly this.