Do solar panels need cleaning?

Rarely — UK rain keeps most roof panels clean enough. An occasional clean helps if they're flat, low, or under trees.

In more detail

Heavy soiling or bird mess can cut output, so a check every year or two is sensible.

Work it out for your home: try our free solar savings calculator →

2026 figures, based on Energy Saving Trust, Ofgem & gov.uk data · always confirm with a professional survey.

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