The PV cells in a solar panel are formed from layers of semi-conduction material which is usually silicon. Once light shines directly on the cell it will then create an electric fiend across all of the layers. The stronger the sunshine, the more electricity is produced. In solar panels the cells are mounted together in panels or modules that can either be mounted onto your roof or on the ground.
The power obtained in the PV cell is measurable in kilowatts peak (kWp) which is the rate at which it generates energy at peak performance in strong sunlight during the summer months. The cells from PV’s can come in a range of shapes and sizes and most of these systems are made up of panels that will be fitted on top of an existing roof, however, there are solar tile option depending on your needs and preferences.