Maintenance
Do I need to clean solar panels in South Africa?
Most South African roofs only need occasional cleaning — a soft rinse when dust, pollen or bird mess is visibly thick. You do not need weekly polishing. Avoid abrasive pads, harsh chemicals and walking on the glass. After hail or high wind, ask your installer to check clamps, cable ties and for hot-spot discoloration rather than guessing from the ground.
Updated 26 October 2026 · Africa/Johannesburg
When cleaning actually helps
- Long dry seasons with visible dust film (Highveld / Karoo / coastal salt spray)
- Bird roosting lines and sticky droppings under a nest
- Agricultural or construction dust nearby
Rain often does a decent job on steep north-facing arrays. Flat or low-tilt roofs hold more dirt.
Safe habits
- Soft brush / sponge and clean water; work from the ground with a proper pole if you can
- Early morning / late afternoon so glass is cool
- Do not pressure-wash seals or stand on modules
- Leave electrical isolation and roof-work to people with fall protection and a CoC mindset
Maintenance beyond washing
- Inverter error logs and string voltages once or twice a year
- Vegetation / new shade (tree growth, neighbouring builds)
- Warranty registration still current; keep your as-built pack
Related answers
Sources
- Module manufacturer cleaning guidance (typical: soft water, no abrasives — check your brand’s manual)
- Installer O&M notes for SA dust and bird soiling — site-specific; a yield drop on monitoring is the practical trigger to clean
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