PV cells are referred to in terms of the amount of energy they generate in full sunlight; know as kilowatt peak or kWp.
The solar cell is the basic building block of Solar PV technology. Most people are familiar with PV Solar Cells that power calculators. These cells are wired together to form a module (PV solar panel)
The PV modules gather solar energy in the form of sunlight and convert it into direct current (DC) electricity. An inverter can convert this DC power into alternating current (AC power, which is the type of electricity used in your home).
PV modules are joined together to form a PV Solar Panel system. Large PV systems can be integrated into buildings to generate electricity.