Okay, how about the copper that transports that electron to somewhere it can do useful work? How about the 1800C furnace that melts sand into the silicon for the solar panel? How about the diesel fuel that the massive mining trucks used to haul the copper ore out of the mine are fueled with (these things are heavy and get something like 8 gallons to the mile (not a typo) good luck running them on batteries)?
Those things aren't going to zero anytime soon.