Stand-alone Solar Power System, Stand-alone PV System or Off-grid Power System operates independent of the electric utility grid (off-grid) and most often uses in remote areas where the utility grid is not available or where the connection fees of the grid are higher than the cost of an alternative energy system. The generated DC power needs to be stored in battery and converted to AC power for supplying to AC loads. Stand-alone Solar Power System suits to use for remote village electrification or rural electrification to provide continuous reliable power at remote locations.