A (GS) for an equipment (EQ) including an electrical reference (ME) and including an area provided with at least two photoelectric cells (C) electrically connected and each covered by a protective window that can become electrostatically charged. This solar generator further includes, on the one hand, at at least one chosen place (EC) of the area, intensification means (MI) responsible for locally intensifying the electrostatic charge so as to force the generation of primary electrical arcs at that chosen place, and, on the other hand, discharging means (EL, LM) adapted to couple the intensification means (MI) to the electrical reference (ME) of the equipment (EQ) so as to evacuate to that electrical reference (ME) discharge currents induced by the primary electrical arcs.