Cleaning vs electrical servicing for Australian solar owners

Does the system need cleaning or electrical service?

Choose ground-level cleaning for safely reachable dirt or debris; choose electrical assessment for persistent errors, unusual noises, damage or unexplained operating problems.[1][2]

• Clean from the ground: On a single-storey home with reachable panels, use a long-handled soft-bristled broom or gently hose the panels. Do not use a pressure hose.[1]
• Escalate possible faults: Contact the original installer or a qualified electrician if errors persist, the system stops operating, or it makes loud buzzing, crackling or rattling noises.[2]

Turning the system off does not necessarily remove the electrical hazard because panels may continue generating charge. Roof access also introduces working-at-height risks.[4]

Compare the four maintenance options

A cleaner addresses access and soiling. An electrician can investigate cabling, equipment condition, performance, safety and faults.[1][2]

If the original installer is unavailable, check the proposed electrician’s current licence and the accreditation relevant to the work. Solar Accreditation Australia (SAA) is the current accreditation scheme operator for the federal small-scale renewable energy scheme; the Clean Energy Council no longer administers that installer accreditation.[5] Solar Victoria recommends an A-Grade electrician with SAA accreditation for the maintenance described in its guidance.[1] A retailer’s New Energy Tech Approved Seller status is not a substitute for checking the individual who will perform electrical work. Requirements outside Victoria and the accreditation needed for a particular repair must be confirmed for that job.

Warning signs that rule out cleaning alone

Arrange fault assessment rather than a cleaning-only visit for:

• recurrent inverter errors, errors that remain after a restart, or errors that stop operation;
• loud buzzing, crackling or rattling;
• visible damage to cables, panels or equipment; or
• other electrical or safety concerns.[1][2]

An inverter or battery may hum softly during normal operation, but solar panels should be silent. Abnormally loud sounds warrant prompt inspection.[2]

Before reporting weak performance, check live and historical data in the inverter, battery or electricity-retailer app and confirm the inverter’s internet connection.[2] The supplied sources do not define a percentage decline that distinguishes dirt from a fault.

Do not attempt electrical repairs yourself. Contact the original installer, follow the manufacturer’s support guidance or engage a qualified electrician.[2] During an outage, most systems shut down to protect network workers and may restart after a short delay; only some solar-battery systems provide backup power.[2]

Check the warranty before using a third party

Check the applicable warranty conditions before authorising third-party cleaning or servicing. Solar Victoria warns that this work could affect coverage, but whether it does depends on the warranty terms.[1]

For faults or possible warranty claims, contact the original installer first if the business remains available.[2] Ask the installer or manufacturer whether they permit the proposed provider, cleaning method, replacement component or repair process, and what service records a claim would require.[1][3]

Keep detailed records of cracks, chips, discolouration and their observed effect on performance. Solar Victoria says these records may support a later panel-warranty claim.[1]

What the maintenance quote should define

The quote should distinguish between cleaning, routine electrical servicing, fault finding, testing, repair and a possible alteration. The supplied sources do not establish standard quote terminology or bundled inclusions, so do not assume one service includes another.[1][2][3][4]

• Cleaning: Specify which panels are included, how they will be accessed and the cleaning method. Solar Victoria says water is usually sufficient and advises against pressure hoses, harsh chemicals and standing on panels.[1]
• Electrical servicing: Ask whether the quote covers cables, fixings, visible panel defects, inverter operation, heatsinks, ventilation grilles, performance testing and safety issues.[1][2]
• Faults or damage: Clarify whether fault finding, repairs and replacement parts are included or separately quoted. Ask which electrical safety certificates, DNSP notifications or register updates may apply and who will handle them.[3]

Confirm who will perform electrical work and which licence or solar accreditation applies in the jurisdiction.[1][3] Before accepting the quote, request a detailed report of the checks performed, findings and completed fixes.[1]

What the service report should record

Ask for a written report that separates checks, findings and fixes rather than a receipt stating only that a service was completed.[1]

Checks completed

• Panels, fixings, cables and electrical equipment inspected, including inverter operation, ventilation and performance tests.[1][2]
• Any applicable electrical safety or anti-islanding test and its result.[1]

Findings

• Cracks, chips, discolouration, damaged or loose components, inverter warnings, restricted airflow and other defects, including where each issue was found.[1]
• Performance observations or test results where measured. The supplied evidence does not establish a dependable production gain from cleaning.[4]

Actions taken

• Cleaning and completed fixes, separated from unresolved faults, recommended monitoring and repairs requiring another quote.[1]
• Any electrical safety certificate or notification associated with the work.[3]

Keep the report with the warranty records because documented panel defects and their effect on efficiency may support a later claim.[1] No supplied source specifies a mandatory national report template.

Verify qualifications for repairs or alterations

Do not assign electrical fault-finding, repairs or system changes to a cleaning-only provider. Clean Energy Council advice says repair and alteration work should be assessed against relevant standards, regulator and safety rules, manufacturer instructions and Distributed Network Service Provider requirements.[3]

In Victoria, Solar Victoria specifies a licensed A-Grade electrician accredited with Solar Accreditation Australia and directs consumers to Energy Safe Victoria’s public register.[1] Licensing and notification processes may differ elsewhere.

The Clean Energy Council advice describes a repair as work on a previously compliant installation that is then verified as safe to energise. It says an alteration may require the altered circuit portion to meet current standards.[3] Ask the contractor to identify any relevant electrical safety certificate, DNSP approval or notification, Distributed Energy Register update or, in Western Australia, notifiable-work notice.[3]

Compare costs and ongoing care

The supplied sources do not provide dependable dollar prices, call-out fees, travel charges, package prices, contract periods, cancellation fees or itemised repair costs for these options.[1][2][3][4] Compare written quotes using the same scope, access requirements, tests, reporting, certificates and exclusions.[1][3]

• Ausgrid recommends a yearly check by a qualified electrician to clean panels, inspect fixings and cables, test performance and identify safety issues. This is guidance, not evidence of a nationwide legal requirement.[2][3]
• Between services, monitor bills and inverter data and check the inverter externally for dirt, webs, vermin, error lights and warning codes.[1]
• Ask the electricity distributor whether it requests a yearly anti-islanding or PV inverter test.[1]

References

1. How to clean and maintain solar panels (vic.gov.au)
2. Support for an existing solar and battery system (ausgrid.com.au)
3. ADVICE ON REPAIRS AND ALTERATIONS (cleanenergycouncil.org.au)
4. Solar Systems Need Maintenance. Here's Why. (ietwa.com.au)
5. Clean Energy Council: Accreditation transition to SAA (cleanenergycouncil.org.au)