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hi, just wrapped up my install yesterday, it's 8x455w in series, i bolted aluminium bracket to the panels frames, which i screwed into my metal roof. today, standing on aluminum ladder, while it was raining, i touched the roof and caught a pretty good zap. i yanked out my volt meter, and...

i dont get zapped when the panels are disconnected from the charge controller/inverter. i doubt there was potential before the install, we're out in the woods, no grid within km's. my multimeter is automatic, and records less voltage between the ladder and the roof/screws than between my...

srne, 48v, 5kW

and by grounding, do you mean connected to the ground?

i realize that sounds silly, i mean, should i electrically connect the roof to the earth? what about the fact that my meter isnt picking up that voltage?