Maintenance
Surviving Harmattan: keeping your panels at full output
OE
Obinna Eze
Lead Solar Engineer
12 April 20264 min read
Dust season can shave 15–25% off your generation without a single fault code. A few simple habits keep your roof earning.
The Harmattan season brings dry, dusty winds from the Sahara across West Africa. While it offers abundant sunshine, the fine layer of dust that settles on solar panels acts like a physical shade, drastically reducing their efficiency by 15% to 25%.
Dust acts as a solar barrier. A simple rinse with clean water once every two weeks is enough to restore your panels to full power. Avoid using harsh soaps or abrasive sponges which can scratch the tempered glass cover.
Always clean your panels early in the morning or late in the evening. Cleaning hot panels with cold water can cause thermal shock, potentially cracking the glass.
Run the energy calculator for a recommendation in under a minute — or browse ready-made bundles built around these exact principles.
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