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Solar panel cleaning (lichen, moss etc) - the big imponderable

Doc_N · 2022-06-21 16:11:59

Any up to date thoughts on the best way to tackle moss and lichen on solar panels - and for that matter the general question of keeping them clean? It's a long time since ours were installed and they really do need cleaning. Manufacturers all seem to say water only (no chemicals) and no brushes - but reality says that…

Comments

Alnat1 Posts: 3,931 Forumite

21 June 2022 at 8:07PM

It'll depend on your water supply. If you're lucky you might have soft water and can use it from the tap. The link said under 75mg/l is ok, checked mine and as I feared it's too high, 104mg/l.

Barnsley, South Yorkshire
Solar PV 5.25kWp SW facing (14 x 375) installed Mar 22
Lux 3.6kw hybrid inverter and 9.6kw Pylontech batteries
Daikin 8kW ASHP installed Jan 25
Octopus Cosy/Fixed Outgoing
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