A grid-connected solar PV system uses solar modules as the power generation source. When the sun shines on the solar panels, DC electricity is generated. The DC electricity is fed into an inverter which changes the DC power output of the solar array to AC power compatible with the regional power grid regulations at the installation site. The system allows for any on-site loads to be powered by a combination of power generated by the PV system and power drawn from the mains power grid. Excess power generated by the PV system will be exported to the power grid.