Does rain not clean them?

It rinses loose dust, and that is all. It does nothing for algae and lichen, which is what actually grows on Irish panels — and rain leaves mineral deposits of its own as it dries.

How often should panels be cleaned?

Once a year suits most installations here, more often near trees, farmland or the coast where salt deposits build up.

Can detergent be used?

No. Detergent leaves a film that holds dirt and can void some panel warranties. Deionised water dries without residue, which is the whole reason it is used.

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Solar Panel Cleaning in Ireland

Solar panels lose output when they get dirty, and Irish conditions are unusually good at making them dirty — persistent damp, algae growth along the lower edge, and lichen where a panel sits in shade. Cleaning is done with deionised water and a soft brush, never detergent, because residue left on the glass attracts more dirt than it removed.

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What’s included

Roof-mounted and ground-mounted arrays
Deionised water and soft-brush method
Algae and lichen removal from panel edges
Frame and mounting check while on site
Bird-proofing advice where nesting is a problem
Pole-fed access from the ground where possible

Why request solar panel cleaning through Connect Cleaner

Recovers output lost to soiling
No detergent residue, which is what attracts dirt back
Algae along the bottom edge caught before it spreads
Nesting under the array spotted early

Available across all 26 counties

We connect you with local solar panel cleaning providers in every county in Ireland.

Leinster

Munster

Connacht

Ulster

Frequently asked questions

Does rain not clean them?: It rinses loose dust, and that is all. It does nothing for algae and lichen, which is what actually grows on Irish panels — and rain leaves mineral deposits of its own as it dries.
How often should panels be cleaned?: Once a year suits most installations here, more often near trees, farmland or the coast where salt deposits build up.
Can detergent be used?: No. Detergent leaves a film that holds dirt and can void some panel warranties. Deionised water dries without residue, which is the whole reason it is used.