There are many different arrays of solar panels, different companies sell panels with diverse technological advances and kilowatts. An example of this is some companies have upgraded their panels to have PERC technology. PERC stands for ‘Passivated Emitter and Rear Contact’, these solar cells are modified conventional cells that enable the cells to produce 6 to 12 percent more energy than conventional solar panels. Therefore, upgrading your system to produce more energy and save you more money.
Nonetheless, all panels work the same way.
For solar panels to work, they must be exposed to sunlight, which we will always have. The sun releases packets of energy down to our earth called photons, these photons hit the solar cells and form an electrical circuit by knocking electrons loose from their atoms. When these electrons flow through the electrical circuit, they generate electricity.