Lichen on PV Panels
I have recently heard mention of possible build up of lichen on the glass and I am wondering if any readers have any experience of this on their installations and how this is managed / dealt with please? It is not a subject that comes up when talking to installers but fortunately for me, more than half my panels are at ground level or at a height I can access with cleaning materials - though the others are up on the roof and rather less accessible. Regards, Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
Tried cleaning lichen off my right hand string of 8 panels today.  First pic shows after. 2nd pick shows left hand string still with lichen. Also highlighted red inn3rd picture. 
It was raining. I used a rubber window squeegee and a soft cloth with washing up liquid. Certainly an improvement. Waiting for heavy rains. Then will try left side. 
Daikin Altherma 3H HT 12kWh ASHP with Mixergy h/w cylinder; 4kW solar PV with Solic 200 electric diverter; Honda e and new Hyundai Ioniq 5 N electric vehicles with Myenergi Zappi mk1 charger
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