Solar grid tie inverter electrical system functions with the grid energy stored in the system that is linked to the mains. They provide excess capacity backed by the local electrical grids. In case of insufficient electricity or batteries not charged fully, electricity from the mains grid cover up the shortfall. The inverter monitors the alternate current mains for the supply of waveforms to generate electricity that's in the phase. The direct current electric system is devoted to the mains via this mechanism, as the local system phase is matched, electricity from the mains assist during the shortfall or discharge in batteries.