1692
oh no! think of the stock market!
(lemmy.world)
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Not a huge effect now with smart systems but if you leave solar panel disconnected from everything and out in the sun for weeks at a time you will damage the panel. Open circuit voltage is higher than operating voltage and higher voltage will break down insulation. PN depends on the insulating properties of a doped layer. If I remember correctly electron tunneling causes damage by making the band gap smaller