What dust actually costs you
Uniform dust reduces output gradually; bird droppings and cement splatter do something worse — they shade cells unevenly, forcing bypass diodes to work and creating hot spots. Coastal Karachi adds a salt film that binds dust into a crust which light rain will not remove.
A realistic schedule
For most Karachi rooftops a cleaning every four to eight weeks in the dry season is the right rhythm, tightening near construction sites or main roads. Monsoon months buy you a little relief, but only where the array tilt lets water sheet off.
- Early morning or evening washing only — never on a hot panel surface
- Soft brush and clean water; no detergent, no abrasive pads, no pressure jet on the frame seals
- Never walk on the modules
What a proper service visit includes
Beyond washing, a real maintenance visit checks DC and AC connections for heat marks, verifies breaker and SPD condition, inspects structure bolts and earthing, reviews inverter error logs, and compares generation against the commissioning baseline so degradation is caught early.
Our after-sales visits are charged per visit; the exact charge depends on system size, roof access and location, and we confirm it when you contact us.
Frequently asked questions
- Can I clean my own solar panels?
- Yes, with plain water and a soft brush in the early morning, provided roof access is safe. Leave electrical inspection and any work near the array wiring to a technician.