Solar panels have no moving parts, so people often assume they need no care at all. In reality, dust, bird droppings and leaves block sunlight from reaching the cells, and that reduces the power your system produces.
Signs your panels need cleaning
- A visible layer of dust or dirt on the glass
- Bird droppings or leaves on part of the panel
- Lower output than usual on clear, sunny days
How often?
There is no single answer. It depends on your surroundings. Panels near busy roads, construction sites, brick kilns or open fields collect dust faster. During the dry season, cleaning is usually needed more often than during the monsoon, when rain helps wash the surface.
A practical approach is to check your panels regularly and clean them whenever you see dirt building up.
How to clean safely
- Clean early in the morning or late in the afternoon, when panels are cool
- Use clean water and a soft brush or cloth
- Avoid detergents, abrasive pads and high-pressure jets
- Never stand on the panels
- If the roof is hard to reach, ask a professional
More than cleaning
Regular maintenance should also include checking the wiring, connections, mounting and inverter. Loose connections or a faulty part can reduce output even when the panels are spotless.
We offer cleaning and system checks as part of our maintenance service. Call us if your system’s output has dropped.