How often should solar panels be cleaned?
There is no single interval that suits every installation. Local dust, nearby construction, bird activity, rainfall and the equipment instructions all matter. Ask a professional to assess the site and recommend a schedule. Cleaning needs should be reviewed with performance observations instead of relying on a fixed sales promise.
Does panel cleaning include a complete system inspection?
Not necessarily. A cleaning service may only cover the panel surfaces, while technical maintenance includes a wider set of checks. Ask for the scope in writing, including electrical inspection, mounting review, generation assessment and a report. If you suspect a fault, mention it before booking the visit.
What should a solar annual maintenance contract include?
Look for a clear schedule, defined tasks, service records, contact arrangements and an approval process for extra work. Check parts, travel, roof access and fault-call exclusions carefully. The right contract depends on your system and any existing warranty or installer obligations, rather than the contract name alone.
Can I maintain the system myself?
You can keep documents organised and observe normal readings or fault messages from safely accessible displays. Leave rooftop cleaning, electrical checks and equipment repairs to qualified personnel. Never walk on modules, open electrical enclosures or repeatedly reset faults. Ask the provider to explain the safe routine observations appropriate to your installation.
Will maintenance guarantee a particular electricity saving?
No. Maintenance supports proper operation, but generation and savings also depend on weather, shading, system design, consumption and tariffs. Ask for transparent reports and explanations of changes rather than a universal savings percentage. Any performance commitment offered by a provider should be clearly defined in its own contract.