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Maintaining your solar photovoltaic (PV) system

For solar farms note that on 13 May 2019 the Construction and operation of solar farms code of practice commenced which includes information on how workers, designers, constructors and operators of solar farms can comply with their existing safety responsibilities.

Solar PV systems are like any electrical equipment that need to be regularly maintained for safe and efficient use.

Regular maintenance should be carried out in accordance with the manufacturer’s instructions and conducted by a qualified person who is aware of the electrical risks with solar panels.

Never attempt electrical repairs yourself.

Contact your electrician or installer for full maintenance, or to repair any damage to the solar panels such as loose fittings or exposed cables.

Cleaning solar panels

Keep solar panels clean so they operate efficiently and safely. Always follow the manufacturer’s recommendations.

A competent person should:

  • use water, not cleaning products
  • not use scourers or other abrasive cleaners
  • avoid using high pressure water cleaners
  • not rest buckets or lean on the panels.

Things to check

  • Check all panels for cracks or chips in the glass, discolouration or other obvious defects.
  • Ensure the panels and supporting frames are firmly secured and free from debris.
  • Make sure that the fittings and cables at the panels and the inverter remain securely attached.
  • Review the inverter display panel for any recorded faults (refer to the manufacturer’s instructions for advice).
  • Check that emergency procedures for shut down and isolation are clearly displayed.
  • Make sure that the cooling vents of the inverter are clear of debris.
  • Ensure access to the isolator switches is not impeded.

Additional tips

  • Look out for overhead powerlines near the solar installation.
  • Take care when working on ladders or at heights.
  • Cut back trees and remove structures that cause shading of the panels (shading can reduce the efficiency and safety of the panels).

Further information

For information about maintaining your solar PV system, download the Solar power system electrical safety brochure.( PDF, 317.52 KB)

Refer to the following links on selecting the right system for you and finding a qualified installer:

Last updated
12 September 2019

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