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Solar panel design: Optimal thickness and air-tight or vented? Answered

Is it better to minimize airspace inside a home made solar panel, and should the panel be air-tight, or have ventilation holes? I'm trying 1/4" depth from the cells to the Lexan cover. It will be used in a climate that ranges from +35C in summer to -35C in winter.



Best Answer 10 years ago

You want it to stay as cool and clean as possible cells are more efficient when they dont heat up too much. Most I see are covered and sealed to prevent contamination (water, visual, etc)


Answer 10 years ago

AHA - indeed. Good thought - silicon pv cells need to be sealed... thermal collectors should be sealed with a heat-reflective material (glass not plastic)