A Grid-Connect Solar Photovoltaic (PV) System acts as a mini power station on your roof, feeds power to your home, and surplus power back to the Grid. Solar systems for domestic homes generally consist of solar panels, an inverter and a metering system. Most solar power systems use PV modules (panels) installed on a rooftop to create and collect energy from sunlight. An inverter converts the Direct Current (DC) electricity generated by solar panels into Alternating Current (AC), the form of electricity conventionally used in homes. The system is connected through a meter to the grid. Solar systems allow you to use your solar power when it is generating electricity during the day and put any excess back into the grid. As soon as you need more electricity than your system can generate, your electricity will automatically be supplied from the grid. At night, your house draws energy from the grid.