I watched a YouTube video of some one washing their solar panels and wondered if it was necessary.
This is my 7th video interview with Tony Boniface President of Solar IPS out of Boulder Colorado.
SolarDave: Do you need to wash your solar panels to keep the efficiency high?
Tony Boniface: In highly dusty areas if you were on a dusty road and had a lot of traffic you would probably want to get a squeegy up there every once and a while or certainly spary some water (on the solar panels).
In low rain areas the rain will keep the panels clean. To keep the efficiency high clean would be good I wouldn’t say it is necessary but since you asked the question in terms of efficiency, yea, I certainly don’t recommend people getting on the roofs – I think the liability of that isn’t worth it, the 10% you might gain and that 10% in a dusty is going to only happen during summer months when it is very dry.
