Thanks JayTee, that was a truely interesting video.
Some 15 odd years ago, a company I use to deal with, imported some special solar panels from Turkey.
These panels had tubing fixed to the back of the solar panels ( like the info in that video ) but while the tubing was intended to cool the solar panel but the water was intended to be used in a domestic hot water system.
I have demonstrated, on numerous occasions, how just pouring cold water over a hot solar panel increases to output substantially, to most observers disbelief.
I have never considered or heard of using air flow to cool a solar panel.
If I ever get some spare time, I must try out his experiment.
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