The main components of solar PV systems are:

• Modules (aka solar panels) that convert sunlight to electricity;
• Inverter(s) that convert(s) the direct current (DC) electricity generated by the panels into alternating current (AC) for use in your home or for export to the grid; and
• Racking that either connects your panels to the roof of a building (rooftop), or, that mounts your panels to the ground (groundmount).

Solar modules are grouped together to form a solar array of connected modules to provide any level of power requirements, from mere watts (W) to kilowatt (kW).