I tried to measure the voltage between positive/negative terminals of a PV system and ground while the inverter of the system is switched off, I found that the voltage decreases with time (the PV cells were discharging).
I know that this is because the PV cells are acting like capacitors. So we need to disconnect the connection between any terminal and ground to recharge the cells.
Will the electrons run out if I keep connecting and disconnecting the terminals with the ground? This maybe happen because we have a limited number of electrons(phosphorous) in N-part and a limited number of holes(Boron) in P-part!
And what about the charging process for N and P parts, do we have any difference in speed of that process?